Answer:
540 degrees
Step-by-step explanation:
i think
Find the slope
Use this form for example:y=Mx+b
Answer:
Line: y = Mx + b, passes (0, 1) => M*0 + b = 1 => b = 1
Line: y = Mx + 1, pass (2, 4) => 2M + 1 = 4 => M =3/2
=> Line: y = (3/2)x + 1
Hope this helps!
:)
Solve the quadratic equation. x2+2x−8=0
Answer:
x=2 x=-4
Step-by-step explanation:
x2+2x−8=0
Step 1: Factor left side of equation.
(x−2)(x+4)=0
Step 2: Set factors equal to 0.
x−2=0 or x+4=0
x=2 or x=−4
Answer:
x=2 or x=−4
Answer:
x=2 or x=-4
Step-by-step explanation:
ax^2+bx+c=0
when solving this equation you should find two numbers that if we multiply them we get c and when we subtract them we get b so in this equation we get 2 and -4
The center of a sphere is
Answer:
a fixed point equidistant from all points on the surface of the sphere
Step-by-step explanation:
I assume you are taking the test, so that's the answer
drawing a 1, 2, or 3 from 9 cards numbered 1-9, replacing the card,
and drawing a 7, 8, or 9
1/3
3/8
C
1/9
d
1/12
Answer:
The required probability is option [tex]C)\ \dfrac{1}{9}[/tex]
Step-by-step explanation:
There are a total of 9 cards.
Total number of cases = 9
Let A be the event of choosing 1, 2 or 3.
Total number of favorable cases for event A = 3
Let B be the event of choosing 7, 8 or 9.
Total number of favorable cases for event B = 3
Formula for finding probability of an event E is:
[tex]P(E) = \dfrac{\text{Number of favorable cases}}{\text {Total number of cases}}[/tex]
Finding P(A), using the formula:
[tex]P(A) = \dfrac{3}{9}\\\Rightarrow \dfrac{1}{3}[/tex]
Now, it is given that the card is replaced, so again total number of cases are 9.
For finding P(B), using the formula:
[tex]P(B) = \dfrac{3}{9}\\\Rightarrow \dfrac{1}{3}[/tex]
To find the probability that events A and B both happen, we can simply multiply P(A) and P(B) because these are independent events.
[tex]\text{Required probability = }P(A) \times P(B)\\\Rightarrow \dfrac{1}{3} \times \dfrac{1}{3} \\\dfrac{1}{9}[/tex]
Toothy the crocodile wants to eat a delicious chicken. His mouth is open to an angle of 30 degrees.
He needs to open his mouth to an angle of 55 degrees for the chicken to fit.
What is the measure of the additional angle Toothy's mouth needs to open so he can eat the chicken?
Answer: 25°
Step-by-step explanation:
From the question, Toothy the crocodile wants to eat a delicious chicken and his mouth is open to an angle of 30 degrees but he needs to open his mouth to the angle of 55 degrees for the chicken to fit.
The additional angle that Toothy's mouth needs to be open so he can eat the chicken will be:
= 55° - 30°
= 25°
Answer:
25
Step-by-step explanation:
did it on khan academy
Someone please help me
whats the angle measure: cos B= 0.5299
Do these side lengths make a right triangle? 3, 4, 5 *
Answer:
This is a right triangle
Step-by-step explanation:
We can check if this is a right triangle by using the Pythagorean theorem
a^2 +b^2 = c^2 where a and b are the legs and c is the hypotenuse
3^2+4^2 = 5^2
9+16 = 25
25=25
This is true so it is a right triangle
The volume of a cylinder is approximately 72ft3. Which is the best approximation of the volume of a cone with the same base and height as the cylinder?
Answer:
24 ft^3
Step-by-step explanation:
Cylinder:
Volume = (pi)r^2h
Cone:
Volume = (1/3)(pi)r^2h
When using r and h for both a cylinder and a cone, the only difference is the factor of 1/3 for the volume of the cone.
A cone with the same radius and height as a cylinder has 1/3 the volume of the cylinder.
volume of cylinder = 72 ft^3
volume of cone = (1/3) * 72 ft^3 = 24 ft^3
Answer:
The volume of cone is 24 ft³
Step-by-step explanation:
Given that volume of cylinder = 72 ft³
Volume of cylinder = πr²h
Volume of cone = [tex]\frac{1}{3}[/tex][tex]\pi[/tex]r²h
Volume of cone = volume of cylinder/3
= 72/3
= 24 ft³
There are 80 coins of $5 in the purse. These coins constitute 20 % of its total
coins. How many coins are there in the purse?
Answer:
320 coins I think
Step-by-step explanation:
Please help me now plz
Answer:
[tex]\frac{4}{3} \\1.333333[/tex]
Step-by-step explanation:
Please help fast will give brainliest
Answer:
b
Step-by-step explanation:
The following table represents an exponential function.
x
y
a
4
1
2
2
1
3
NI-
1
4
The exponential function represented by the table can be written in the form y = ab*. Find the values
for a and b.
The values for a and b in the given exponential function are a = 4 and b = 1/2
What is an exponential function?An exponential function is a mathematical function used to calculate the exponential growth or decay of a given set of data.
For example, exponential functions can be used to calculate changes in population, loan interest charges, bacterial growth, radioactive decay or the spread of disease.
Given that,
The exponential function is given as, y = abˣ, we need to find the value of a and b,
When x = 0, ab⁰ = 4
a=4 (since, b⁰ = 1)
When x = 1, ab¹ = 2
4b = 2
b = 1/2
Hence, The values of a and b are a = 4 and b = 1/2
Learn more about exponential function, click;
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Justin wants to plant grass in his backyard. His backyard is in the shape of a rectangle. Its length is 32 feet and its width is 21 feet. Suppose each pack of seed covers 12 square feet. How many packs of seed will he need to cover the backyard?
Answer:
56 pack
Step-by-step explanation:
To find the number of packs of seed needed, we will first find the area of the rectangular backyard. We're given that the length is 32 feet and the width is 21 feet.
We get the following. Area =length × width =×3221 =672 square feet So the area of the backyard is 672 square feet. Each pack of seed covers 12 square feet. So we can find the number of packs of seed needed as follows. =÷6721256 packs Thus, Justin will need 56 packs of seed.
What is 9+9
Will give branliest if correct!!
Answer:18
Step-by-step explanation:
The fractions 4/7 and x/21 are equivalent fractions. What is the value of x ?
Answer:
The value of x is 12
Step-by-step explanation:
4x3=12
7x3=21
Therefore 12/21
To explain further:
If you divide 12 by 3 you get 4
If you divide 21 by 3 you get 7
Therefore resulting to 4/7
(I found out that the number three goes in both numbers to begin with)
Is this clearer?
joe buys groceries for his grandfather the groceries cost $42 plus 5% tax joe wants to know the total cost of the groceries including tax how much sales tax does joe pay on the groceries
its on iready
====================================================
Work Shown:
5% = 5/100 = 0.05
5% of 42 = 0.05*42 = 2.10
tax = $2.10
total cost including tax = $42 + $2.10 = $44.10
----------
An alternative is to multiply 42 by 1.05 to get
1.05*42 = 44.10
We get the same answer. The 1.05 refers to 1 + 0.05 where the "1" is 100% and the 0.05 is 5%, so the two combine to 105%, meaning the total cost is 105% of the cost before tax is considered.
A circle has a radius of 9. An arc in this circle has a central angle of 120°.
What is the length of the arc?
Either enter an exact answer in terms of it or use 3.14 for 1 and enter your answer as a decimal.
120
9
Answer:
6pi or 18.84
Step-by-step explanation:
120/360 times 2 pi 9
120/360 = 1/3
2 times 9 = 18
18 times 1/3 equals 6
Does anyone know the answer ? lmk asap
Answer:
1,253 inches cubed
Step-by-step explanation:
This is easy, just find the separate volumes of both and add.
Figure 1: 7x5x5= 175 inches cubed
Figure 2: 11x14x7= 1,078 inches cubed
Added together: 1,253 inches cubed
Therefore it's C
:))))))
Waylon played defense in 12 soccer games. This was 60% of the total number of games he played. How many games did Waylon play?
Answer:
he played around 20 games
Answer:20
Step-by-step explanation:
N\A
Need a bit of help with this question:
Firstly let's find hypotenuse(let it will be "n" of smaller triangle
Let use Pythagorean theorem
[tex]a^{2} + {b}^{2} = {n}^{2} \\ {20}^{2} + {10}^{2} = {n}^{2} \\ n = \sqrt{500} [/tex]
Now we need to find hypotenuse(x) of bigger triangle
[tex] {c}^{2} + {n}^{2} = {x}^{2} \\ {9}^{2} + { \sqrt{500} }^{2} = {x}^{2} \\ x = \sqrt{581} [/tex]
The value of x must be rounded to 1 DP, so
[tex] \sqrt{581} = 24.1039... \\ \sqrt{581} \simeq \: 24.1[/tex]
Answer: x=24.1
PLEASE HELP WILL MARK BRAINLIEST
Answer:
acute acute obtuse right
Step-by-step explanation:
if it is less than 90° it will be acute. it is exactly 90° it is right. it is more than 90° it is obtuse.
good luck
PLEASEEEE HURRYYYY!!!!
find the slope, y and x-intercept of
f(x)=4
i'd say it would be 4 over 1 4/1 so you go up 4 and to the right 1 if they were negative then it would be the oposite way around.
Which power is equivalent to the expression (g-12)-3?
StartFraction 1 Over g Superscript 36 EndFraction
StartFraction 1 Over g Superscript 9 EndFraction
g9
g36
Answer:
d. g36
Step-by-step explanation:
The solution is, g^36 power is equivalent to the expression (g-12)-3.
What is an exponent in math?An exponent refers to the number of times a number is multiplied by itself. For example, 2 to the 3rd (written like this: 23) means: 2 x 2 x 2 = 8. 23 is not the same as 2 x 3 = 6. Remember that a number raised to the power of 1 is itself.
here, we have,
given expression is,
g^(-12)(-3)
=g^(12*3)
=g^36
Hence, The solution is, g^36 power is equivalent to the expression (g-12)-3.
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A shipping manager weighed a random sample from a shipment of 90 boxes and made the dot plot. Which interval of weights has the greatest number of boxes?
Answer:
The interval with the most amount of dots has the greatest number of boxes.
Step-by-step explanation:
Because each dot represents equal number of box(es), the interval with the most number of dots has the greatest number of boxes.
What is the surface area of the figure below?
A 12 ft?
B 36 ft?
C 54 ft?
D 90 ft2
Answer:
D
Step-by-step explanation:
6 times 3 times 4 plus 3 times 3 times 2
Answer:
D. 90 ft squared
Step-by-step explanation:
A= 2wl + 2lh + 2hw
A = 18 + 36 + 36
=90
In which function is x = 2 mapped to 32?
Answer:
x=5
Step-by-step explanation:
2^x=32 , solve for x, so x=5
What is the first step in solving the equation? 2(3k + 1) = 4k + 32
Answer:
The first step is to expand it to get rid of brackets .
Step-by-step explanation:
The first step, you have to eliminate brackets by expanding :
[tex]2(3k + 1) = 4k + 32[/tex]
[tex]2(3k) + 2(1) = 4k + 32[/tex]
[tex]6k + 2 = 4k + 32[/tex]
Next you have to collect like terms by making the same variable to one side and lastly, solve it :
[tex]6k - 4k = 32 - 2[/tex]
[tex]2k = 30[/tex]
[tex]k = 30 \div 2[/tex]
[tex]k = 15[/tex]
Answer:
Use the distributive Law on the left side of the equation.
Step-by-step explanation:
The first step is to distribute the 2 over the parentheses:
2(3k + 1) = 4k + 32 Distributing:
2*3k + 2*1 = 4k + 3
6k + 2 = 4k + 3
2k = 1
k = 1/2.
Which expression is equivalent to 8a +14
Answer:
2(4a + 7)
Step-by-step explanation:
2 to the 4 and 7
This would give you 8a + 14 because 2 times 4 is 8, and 2 times 7 is 14.
Hope this helps.
Answer:
2(4a + 7)
Step-by-step explanation:
Multiply 2x 4 to make 8a. Then multiply 2 x 7 to make 14. 8a + 14.
THANKS FOR THE POINTS BTW
Jacob and Isaac decided to run to the basketball court after school. The basketball court is 514 miles from school. The boys run at a pace of 338 miles per hour. Enter the length of time, in hours, that it will take the boys to arrive at the basketball court.
Answer:
1.5 hours
Step-by-step explanation:
Divide 514 by 338 to get 1.5207 and round it to 1.5 because we are working with time