Answers
Answer:
[tex]\boxed{\sin D = 0.39 }[/tex]
Step-by-step explanation:
DEF is a right triangle with hypotenuse = 18 and one leg = 7
The law of sines states that the ratios of the sides of a triangle to the sine of the angle opposite that side must be the same for all sides
[tex]\dfrac{18}{\sin 90} = \dfrac{7}{sin D}[/tex]
sin(90) is 1
So the above equation becomes
[tex]18 = \dfrac{7}{\sin D}[/tex]
Cross multiplying we get
[tex]\sin D = \dfrac{7}{18}\\\\\sin D = 0.3889\\[/tex]
Rounded to the nearest hundredth ( i.e. 2 decimal places):
[tex]\sin D = 0.39 \quad \quad \textrm{ANSWER}\\\\[/tex]
Related Questions
Write exponential growth/decay equation and solve for each problem
A savings account balance is compounded annually. If the interest rate is 2% per year and the current balance is $1,460.00, what will the balance be 8 years from now?
Answers
Answer:
The equation is y = 1,460e^(2%)x, and the balance will be $2,067.54 in 8 years
Select the correct answer. A parabola declines through (negative 2, 4), (negative 1 point 5, 2), (negative 1, 1), (0, 0) and rises through (1, 1), (1 point 5, 2) and (2, 4) on the x y coordinate plane. The function f(x) = x2 is graphed above. Which of the graphs below represents the function g(x) = (x + 1)2? A parabola declines through (negative 2, 5), (negative 1 point 5, 3), (negative 1, 2), (0, 1) and rises through (1, 2), (1 point 5, 3) and (2, 5) on the x y coordinate plane. W. A parabola declines through (negative 2, 3), (negative 1 point 5, 1), (1, 0), (0, negative 1) and rises through (1, 1), (1 point 5, 1) and (2, 2) on the x y coordinate plane. X. A parabola declines through (negative 3, 4), (negative 2 point 5, 2), (negative 2, 1), (negative 1, 0), (0, 1), (0 point 5, 2) and (1, 4) on the x y coordinate plane. Y. A parabola declines through (negative 1, 4), (negative 0 point 5, 2), (0, 1) and (1, 0) and rises through (2, 1), (2 point 5, 2) and (3, 4) on the x y coordinate plane. Z. A. W B. X C. Y D. Z Reset Next
Answers
The parabola function has a minimum value of -4.
How to determine the maximum or the minimum?The given parameters are:
Declines through (-5,-2), (-3,-4)
Rises through (-2, -3), (-1, -2), (0, 0), (0, 2) and (1, 4)
Because the parabola declines before it rises, it means that the function has a minimum
From the point of decline;
-4 is less than -2
Hence, the parabola function has a minimum value of -4.
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Please use R.
Write a function called by_type() that takes an atomic vector as input and an optional argument ‘sort’ with default value FALSE. The function looks at each element in the atomic vector and sees if it can coerce them into integer or floating-point values. The function outputs a list that has separated the values into a list with integers, doubles, and character values. If the optional argument sort is TRUE, then it will sort the results of each vector.
Answers
Atomic vectors typically come in four different types: logical, integer, double, and character. Complex and raw are the two less common varieties.
An atomic vector can have any properties, with the exception of a dimension attribute, and is either logical, integer, numeric, complex, character, or raw (like matrices). For example, a matrix or NULL are not atomic vectors, but a factor is. This is, in essence, the same as is. atomic. Using the built-in int function, one can transform texts in Python into integers. Any Python data type can be sent to the int() function to be transformed into an integer.
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Find the ratio of the areas in the following sets or similar triangles with corresponding sides labeled.
Answers
The ratios of the areas in the following sets or similar triangles are:
1. 9:1, 2. 4:1, 3. 25:9,
4. 46:9, 5. 9:4, 6. 4:1,
7. 25:4, 8.9:4, 9. 9:1.
What are triangles?Having three edges and three vertices, a triangle is a three-sided polygon. The fact that a triangle's internal angles add up to 180 degrees is its most crucial characteristic. This characteristic is known as the triangle's angle sum property.
Given a set of triangles is similar,
for similar triangles the ratio of their corresponding sides is equal,
so A/a = B/b = C/c
where A, B, and C are sides of larger triangles and a, b, and c are sides of small triangles.
area of small triangle = 1/2*b*h
here b =base and h = height
area of large triangle = 1/2*B*H
here B =base and H = height
the ratio of areas = area of the large triangle/area of the small triangle
the ratio of areas = [1/2*B*H]/[1/2*b*h]
the ratio of areas = BH/bh
since the triangles are similar, B/b = H/h
the ratio of areas = B²/b²
or the ratio of areas = (SIDE)²/(side)²
1. given side of large triangle = 3
side of small triangle = 1
ratio of areas = 3²/1²
ratio of areas = 9/1 = 9:1
2. given side of large triangle = 4
side of small triangle = 2
ratio of areas = 4²/2²
ratio of areas = 16/4 = 4:1
3. given side of large triangle = 5
side of small triangle = 3
ratio of areas = 5²/3²
ratio of areas = 25/9 = 25:9
similarly for other questions,
4.ratio of areas = 16/9 = 16:9
5. ratio of areas = 9/4 = 9:4
6. ratio of areas = 64/16 = 4:1
7. ratio of areas = 25/4 = 25:4
8. ratio of areas = 36/16 = 9:4
9. ratio of areas = 4/1 = 4:1
Hence the ratios are as possible.
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The sum of 11 and three-fourths of a number is less than 112. What are all the possible values of the number? Write an inequality that could be used to solve this problem. Use the letter x as the variable, and write the inequality so that the x term comes first. Where necessary, write numbers as fractions (rather than decimals).
Answers
The required inequality that shows the possible value of x is x < 404/3
What is inequality?Inequality can be defined as the relation of the equation containing the symbol of ( ≤, ≥, <, >) instead of the equal sign in an equation.
Let's call the number we're trying to find "x". Then, the inequality can be written as:
11 + (3/4)x < 112
To solve for x, we'll isolate x on one side of the inequality. First, we'll subtract 11 from both sides.
(3/4)x < 101
Next, we'll divide both sides by (3/4).
x < (4/3) * 101 = 404/3
So, all values of x that are less than 404/3 satisfy the inequality. The possible values of x are all numbers less than 404/3.
x < 404/3
or written as an interval:
x ∈ (-∞, 404/3)
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pls help it urgent ty
Answers
Answer: A. 2/5 or 0.4 and B. 5/2 or 2.5 or 2 1/2
Step-by-step explanation: I'm a personal math calculator
Question content area top Part 1 Given the following functions, find the indicated values f(x)=4-9x (a) f(-8) (b) f(0) (c) f(9)
Answers
Answer:
Step-by-step explanation:
Given the function f(x) = 4 - 9x, the indicated values are:
(a) f(-8) = 4 - 9(-8) = 4 + 72 = 76
(b) f(0) = 4 - 9(0) = 4
(c) f(9) = 4 - 9(9) = 4 - 81 = -77
So, the values of f(-8), f(0), and f(9) are 76, 4, and -77, respectively.
Sandy used a virtual coin toss app to show the results of flipping a coin 100 times, 500 times, and 1,000 times. Explain what most likely happened in Sandy's experiment.
Sandy's experimental probability was closest to the theoretical probability in the experiment with 100 flips.
Sandy's experimental probability was closest to the theoretical probability in the experiment with 500 flips.
Sandy's experimental probability was closest to the theoretical probability in the experiment with 1,000 flips.
Sandy's experimental probability was exactly the same as the theoretical probability for all three experiments.
Answers
Sandy's experimental probability was closest to the theoretical probability in the experiment with 100 flips.
Explanation:
In Sandy's experiment, she used a virtual coin toss app to simulate the results of flipping a coin 100 times, 500 times, and 1,000 times. The experimental probability is the probability obtained from the observed outcomes of the experiment, while the theoretical probability is the probability calculated based on mathematical principles and assumptions.
Based on the information given, it is stated that Sandy's experimental probability was closest to the theoretical probability in the experiment with 100 flips. This suggests that the observed outcomes of the 100 flips aligned more closely with the expected outcomes based on the theoretical probability.
It is important to note that experimental probability tends to converge towards theoretical probability as the number of trials increases. Therefore, it is expected that the experimental probability would be closer to the theoretical probability in the experiment with 1,000 flips compared to the experiment with 500 flips.
Without further information, it is not possible to determine whether Sandy's experimental probability was exactly the same as the theoretical probability for all three experiments. However, based on the given statement, it can be concluded that Sandy's experimental probability was closest to the theoretical probability in the experiment with 100 flips.
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In Sandy's experiment, the experimental probability was closest to the theoretical probability in the experiment with 100 flips.
Explanation:
In Sandy's experiment, she used a virtual coin toss app to simulate the results of flipping a coin 100 times, 500 times, and 1,000 times. The experimental probability is the probability obtained from the observed outcomes of the experiment, while the theoretical probability is the probability calculated based on mathematical principles and assumptions.
Based on the information given, it is stated that Sandy's experimental probability was closest to the theoretical probability in the experiment with 100 flips. This suggests that the observed outcomes of the 100 flips aligned more closely with the expected outcomes based on the theoretical probability.
It is important to note that experimental probability tends to converge towards theoretical probability as the number of trials increases. Therefore, it is expected that the experimental probability would be closer to the theoretical probability in the experiment with 1,000 flips compared to the experiment with 500 flips.
Without further information, it is not possible to determine whether Sandy's experimental probability was exactly the same as the theoretical probability for all three experiments. However, based on the given statement, it can be inferred that the experimental probability was closest to the theoretical probability in the experiment with 100 flips.
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enter the complete name for dl
Answers
Deep Learning (DL) is a type of Artificial Intelligence (AI) that uses a set of algorithms to simulate the functioning of the human brain.
It is a form of machine learning that is based on the concept of neural networks. DL uses a set of algorithms to process large volumes of data and identify patterns in the data. DL can be used to identify patterns and relationships in data that are not easily visible to the human eye.
DL works by using a series of layers of neurons, each of which is connected to the next layer by a set of weights and biases. During the training process, these weights and biases are adjusted so that the output of the neural network is adjusted to match the desired output. This is done by using an optimization algorithm such as gradient descent. At each step, the weights and biases are adjusted until the output of the neural network matches the desired output.
Once the DL model has been trained, it can be used to make predictions from new data. It does this by taking inputs and passing them through the layers of neurons to generate an output. This output is then compared to the desired output and an error is calculated. This error is then used to adjust the weights and biases in order to minimize the error. This process of adjusting the weights and biases is repeated until the error is minimized and the model can make accurate predictions from new data.
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Complete question .
What is Deep Learning (DL)?
Molly uses 9.3 pints of blue paint and white paint to paint her bedroom walls.
2
5
of this amount is blue paint, and the rest is white paint. How many pints of white paint did she use to paint her bedroom walls?
Answers
The white paint did she use to paint her bedroom walls will be 6.975 pints.
What is the percentage?The percentage is defined as representing any number with respect to 100. It is denoted by the sign %. The percentage stands for "out of 100." Imagine any measurement or object being divided into 100 equal bits.
Given that Molly uses 9.3 pints of blue paint and white paint to paint her bedroom walls 25% of this amount is blue paint.
The amount of white paint will be calculated as:-
Amount = [ 9.3 x ( 100 - 25 )%]
Amount = [ ( 9.3 x 0.75 ) ]
Amount = 6.975 pints.
Hence, the amount of white paint used for painting is 6.975 pints.
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two less than a number times four
Answers
Answer:
is equal to the number minus six.
Six friends went to a movie and spent $9 per ticket. They also purchased a small bag of popcorn each. If the friends spend a total of $82.50, how much does each small bag of popcorn cost?
Answers
Hello!
If six friends went to a movie and spent $9 per each ticket and also purchased a small bag of popcorn each with them spending a total of $82.50, the cost of each small bag of popcorn costs $4.75.
Step-by-step explanation:
[tex]6[/tex] × [tex]9=54[/tex]
[tex]82.50-54=28.50[/tex]
[tex]28.50[/tex] ÷ [tex]6=4.75[/tex]
Hope this helps!
The total cost of the tickets was 6 * $9 = $54.
So the total cost of the popcorn was $82.50 - $54 = $28.50.
And the total number of small bags of popcorn was 6.
So, each small bag of popcorn cost $28.50 / 6 = $4.75
In this figure, h = 3, and r = 4.
What is the exact surface area of the cone?
Enter your answer in the box.
units²
Answers
The exact surface area of the cone having height 3 unit and radius 4 unit, 113.09734 unit²
What is the area?An area is total space occupied by two-dimensional or flat surfaces. In other words we can say that it is a number of unit squares present in a closed figure. We use various units for measurement of area like, cm², m², ft², mm².
Given that,
A Cone having,
Radius r = 4 unit
Height h = 3 unit
Surface Area = ?
Formula for the Cone,
Surface Area of Cone = πrl + πr²
where, l = [tex]\sqrt{h^{2}+r^{2} }[/tex]
Surface Area of Cone = πr([tex]\sqrt{h^{2}+r^{2} }[/tex]) + πr²
= πr([tex]\sqrt{h^{2}+r^{2} }[/tex] + r)
= 4π([tex]\sqrt{3^{2}+4^{2} }[/tex] + 4)
= 4π(5 + 4)
= 20π
≈ 113.09734
Thus, the surface area of cone is 113.09734 unit²
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Suppose consumer incomes increase. How will this affect the demand, supply, price, and quantity of potatoes (an inferior good) in the market?
Answers
An increase in consumer incomes would lead to a decrease in the demand and price of potatoes, and an increase in supply and quantity.
When consumer incomes increase, the demand for inferior goods such as potatoes usually decreases. This is because as people's incomes rise, they tend to switch to buying more superior goods, which are generally more expensive than inferior goods.
At the same time, the supply of potatoes may also increase as farmers respond to the potential for higher prices by growing more potatoes.
With both a decrease in demand and an increase in supply, the market price for potatoes is likely to fall. The quantity of potatoes supplied will likely increase as well, as the lower price attracts both consumers and producers.
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The surface area of a sphere is found using the formula SA=4², where r is the radius. If the surface area of a
sphere is 144π square feet, what is the radius, in feet?
A. 6
B. 12
C. 18
D. 36
Answers
Answer:
A
Step-by-step explanation:
Surface area of sphere is 4 pi r^2
144 pi = 4 pi r^2
144 pi / (4 pi) = r^2
36 = r^2
r = 6 ft
is the conditional statement ¬(p → q)→ ¬q tautology?
Answers
After solving the statement we get ¬(p → q)→ ¬q = T. So, the conditional statement ¬(p → q)→ ¬q is a tautology.
The conditional statement is ¬(p → q)→ ¬q.
We construct table:
p q p → q ¬q ¬(p → q) ¬(p → q)→ ¬q
T T T F F T
T F F T T T
F T T F F T
F F T T F T
As we know that the conditional statement is a tautology. So
¬(p → q)→ ¬q
As p → q = ¬p ∨ q and ¬(¬p) = p. So
¬(¬(p → q)) ∨ ¬q
(p → q) ∨ ¬q
As we know that q ∨ ¬q = T and q ∨ T = T. So
¬p ∨ (q ∨ ¬q)
¬p ∨ T
T
Hence, ¬(p → q)→ ¬q is Tautology.
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How do you solve a spring equation?
Answers
Hooke's Law states that when a spring is extended, the force is proportional to how much longer it is than its equilibrium length. The spring constant can be calculated using the formula k = -F/x.
What is a spring equation?Hooke aimed to show how a spring's elasticity and the forces acting on it are related.
According to Hooke's Law, a spring's extension is proportional to the load placed on it.
As long as the load does not exceed the material's elastic limit, a variety of materials will adhere to this rule.
F = k(x - x0), where x represents the spring's displacement from equilibrium and k is the spring constant.
The negative sign indicates that the force represented by the spring is a restorative force and operates in the opposite direction.
According to Hooke's Law, when a spring is stretched, the force applied is proportional to the lengthening from the equilibrium length.
The formula k = -F/x, where k is the spring constant, can be used to get the spring constant. F stands for force, and x is for the variation in spring length.
Therefore, Hooke's Law states that when a spring is extended, the force is proportional to how much longer it is than its equilibrium length. The spring constant can be calculated using the formula k = -F/x.
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You are trying to raise money for college. You have $1000 right now to invest into an account. You have two options for accounts:
Option 1: An account that pays 12% interest compounded quarterly.
Option 2: An account that pays 6% interest compounded continuously.
Which option will give you the most money after 2 years? Use numerical calculations and words to justify your answer.
Answers
The option that will give you the most money after 2 years is option (a)
Which option will give you the most money after 2 yearsOption (a)
Here, we have
Principal, P = $1000
Rate, r = 12% = 0.12
Number of times, n = 4
Time, t = 2
The formula of amount is
A = P * (1 + r/n)^(nt)
So, we have
A = 1000 * (1 + (0.12/4))^(4 *2)
A = 1266.77
Option (b)
Here, we have
Principal, P = $1000
Rate, r = 6% = 0.06
Time, t = 2
The formula of amount is
A = P * e^(rt)
So, we have
A = 1000 * e^(0.06 * 2)
A = 1127.50
1266.77 is greater than 1127.50
Hence, the option is option (a)
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Can someone PLEASE help? I will give brainliest if possible
Match the angle in the left column with its supplementary angle in the right column
Click on the image to see the answers
Answers
Answer:
Step-by-step explanation:
Supplementary angles add up to 180.
49 + 131 = 180 b
114 + 66 = 180 d
71 + 109 = 180 c
87 + 93 = 180 a
The sum of two numbers is 25 the difference between three times the larger one and two times the smaller one is 55
Answers
Answer:
(21, 4)
Step-by-step explanation:
x+y=25
3x-2y=55
3x+3y=75
3x-2y=55
5y=20
y=4
x+4=25
x=21
3¼% of $500 is?....?
Answers
Answer:
16.25
Step-by-step explanation:
1% = 5
times 1 by 3.15 so,
5x3.15=16.25
A walkway forms one diagonal of a square playground. The walkway is 32m long. How long is a side of the playground
Answers
Answer:14 meters
Step-by-step explanation:
What is the extreme value theorem example?
Answers
The function is continuous on [−2,2], and its derivative is f′(x)=4 x 3−9 x 2. Because x=9/4 is not in the interval [−2,2], the only critical point occurs at x = 0 which is (0,−1).
What is meant by function ?
Having or performing a utilitarian function; being able to fulfil its intended function: useful furniture; architectural design that serves a purpose.I dropped the flashlight, yet it still worked. The computer network is working properly.Both sorts of access can be granted to a user using the functional usage model.You can grant a user only one kind of access, such as permission to utilise but not modify a specific feature, element, or object.All biological activities, including respiration, excretion, and nourishment, can be performed by a cell. It is therefore referred to as the functional unit of life. The lowest unit of life is the cell, and cells make up every living thing.To the complete questions is;
Find the maximum and minimum values of f(x)= x 4−3 x 3−1 on [−2,2].
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Guess the value of the limit (if it exists) by evaluating the function at the given numbers.
lim x→−5
x2 − 5x
x2 − 25
,
x = −4.5, −4.9, −4.95, −4.99, −4.999, −4.9999, −5.5, −5.1, −5.05, −5.01, −5.001, −5.0001
Answers
The value of the limit for the given function [tex]\lim_{x \to 5} \frac{x^2 - 5x}{x^2 - 25}[/tex] = 1/2.
What is L'hospital rule?A general technique for assessing indeterminate forms like 0/0 or / is the L'Hospital rule. L'Hospital's rule is applied to calculate the limits of indeterminate forms for calculus derivatives. It is possible to use the L Hospital rule many times. This rule is still valid after being applied, and it will take any indefinite form. L'Hospital's Rule cannot be applied if the issue is not of the indeterminate types.
The given function is:
[tex]\lim_{x \to 5} \frac{x^2 - 5x}{x^2 - 25}[/tex]
Substituting the value of limit we can see that the function is of the indeterminate form 0/0.
Using the L'Hospital rule we have:
[tex]\lim_{x \to 5} \frac{x^2 - 5x}{x^2 - 25}\\\\\lim_{x \to 5} \frac{2x - 5}{2x}\\[/tex]
Substitute the value of limits:
[tex]=\frac{2(5) - 5}{2(5)}\\ \\=\frac{1}{2}[/tex]
Hence, the value of the limit for the given function [tex]\lim_{x \to 5} \frac{x^2 - 5x}{x^2 - 25}[/tex] = 1/2.
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explain the difference between the key words 'of' and 'more than' when dealing with percentages. how are their meanings related?
Answers
The words ‘of’ and ‘more than’ are often used in conjunction with percentages. The word ‘of’ is usually used to refer to a portion or part of a whole. For example, ‘50% of the population’ means that half of the population is being referred to.
In comparison, ‘more than’ is used to refer to a number that is higher than the one that is being referred to. For instance, ‘more than 50% of the population’ means that more than half of the population is being referred to.
The two words are related in that they both refer to a number or percentage, but their meanings differ. The word ‘of’ is used to refer to a portion of a number or percentage, while ‘more than’ is used to refer to a number or percentage that is higher than the one being referred to.
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determine whether the sequence converges or diverges. if it converges, find the limit. (if an answer does not exist, enter dne.) an = n 2 sin(2/n) lim n→[infinity] an = incorrect: your answer is incorrect.
Answers
The given sequence is convergent and the limit is 1.
What is a sequence?
In mathematics, a sequence is an enumerated collection of objects in which repetitions are allowed and order matters. Like a set, it contains members. The number of elements is called the length of the sequence.
Here, we have
Given: aₙ = (n/2) sin(2/n)
First, we will find the limit of a given sequence.
aₙ = [tex]\lim_{n \to \infty} (n/2)sin(2/n)[/tex]
We apply L'hospital's rule here and we get
aₙ = [tex]\lim_{n \to \infty} {cos(2/n)(-2/n^2)}/(-2/n^2)[/tex]
aₙ = [tex]\lim_{n \to \infty} cos(2/n)[/tex]
aₙ = 1
We concluded that the given series is convergent.
Hence, the given sequence is convergent and the limit is 1.
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for what value of k is y-x^k a solution to the differential equation x^2y'y''
Answers
For k =3, y = [tex]x^k[/tex] is a solution to the differential equation [tex]x^2[/tex]y'y'' - 4yy' = 6[tex]x^5[/tex].
The differential equation is [tex]x^2[/tex]y'y'' - 4yy' = 6[tex]x^5[/tex].
Let y = [tex]x^k[/tex] is a solution to the differential equation [tex]x^2[/tex]y'y'' - 4yy' = 6[tex]x^5[/tex].
So y' = k[tex]x^{k-1}[/tex]
y'' = k(k-1)[tex]x^{k-2}[/tex]
Now putting the value of y, y' and y'' in the differential equation.
[tex]x^2[/tex](k[tex]x^{k-1}[/tex])(k(k-1)[tex]x^{k-2}[/tex]) - 4[tex]x^k[/tex](k[tex]x^{k-1}[/tex]) = 6[tex]x^5[/tex]
Now simplifying the equation.
[tex]k^2(k-1)x^2x^{k-1}x^{k-2} - 4kx^kx^{k-1}[/tex] = 6[tex]x^5[/tex]
As we know that the power gets add in the multiplication so
[tex]k^2(k-1)x^{(2+k-1+k-2)} - 4kx^{(k+k-1)}[/tex] = 6[tex]x^5[/tex]
[tex](k^3-k^2)x^{2k-1} - 4kx^{2k-1}[/tex] = 6[tex]x^5[/tex]
[tex]k^3x^{2k-1}-k^2x^{2k-1} - 4kx^{2k-1}[/tex] = 6[tex]x^5[/tex]
Taking common [tex]kx^{2k-1}[/tex]
[tex]kx^{2k-1}(k^2-k - 4)[/tex] = 6[tex]x^5[/tex]
On comparing
2k-1 = 5
Add 1 on both side, we get
2k = 6
Divide by 2 on both side, we get
k = 3
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The complete question is:
For what value of k is y = [tex]x^k[/tex] a solution to the differential equation [tex]x^2[/tex]y'y'' - 4yy' = 6[tex]x^5[/tex]?
Can someone PLEASE help? I will give brainliest if possible and lots of points
Click on the image to see questions
Answers
Answer:
A) <5 and <6 are commentary
B) 72
C < 4 = 22
<3 = 68
Step-by-step explanation:
A) The square drawn over the 2 angles shows that the angles together measure 90 degrees
B) 90 - 18 = 72
C) 4x -10 + 5x + 28 = 90 Combine like terms
9x + 18 = 90 Subtract 18 from both sides
9x = 72 Divide both sides by 9
x = 8
<4
4x - 10
4(8) - 10
32 - 10
<4 = 22
<3
5x + 28
5(8) + 28
40 + 28
68
<3 = 68
Answer:
Part A: Yes, ∠5 and ∠6 are complementary angles because they add up to 90°.
Part B: If the measure of ∠6 is 18°, then the measure of ∠5 is 72° because ∠6+∠5=90° so 90°-18°=72°.
Part C: ∠4+∠3=90°
(4x-10)°+(5x+28)°=90°
add 10 to both sides
4x+5x+28=100
subtract 28 from both sides
4x+5x=72
combine like terms
9x=72
divide both sides by 9
x=8
now plug 8 in for x
∠4=(4(8)-10)°
∠4=22°
∠3=(5(8)+28)
∠3=68°
22°+68°=90°
PLEASE PLEASE HELP whats the origin of the number zero (pls give me interesting info its for a math project)
Answers
Please Brainliest
The origin of the number zero is believed to be ancient India, where it was invented as a placeholder in the decimal system around the 5th century CE. The concept of zero as a number in its own right was a revolutionary idea that greatly advanced mathematical understanding and allowed for much more efficient mathematical calculation. From India, the use of zero spread to the Islamic world and eventually to the West. The modern representation of zero as a circle or a digit was introduced in the 13th century in India.
Two equal ide of a triangle are each 4m le than three time the third ide. Write down the dimenion of the triangle, if it perimeter i 55m
Answers
9 m, 23 m, and 23 m are the triangle's measurements.
What is meant by triangle's measurement?The total of a triangle's three inner angles is always 1800. Any two sides of a triangle can have a sum of lengths that is always greater than the length of the third side. Half of a triangle's area is equal to the sum of its base and height. Any triangle's three angles add up to a whole 180 degrees.Wisconsin University's Brian McCall A 45° 45° 90° triangle is a particular kind of isosceles right triangle in which the two legs are congruent and the non-right angles are both 45°. The hypotenuse or missing legs of 45 45 90 triangles can frequently be determined using the Pythagorean theorem.To learn more about triangle's measurement, refer to:
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