The probability of randomly selecting an individual in this community who has red hair or is left-handed is 0.23
The probability of an event refers to the likelihood of the event occurring, expressed as a number between 0 and 1.
In other words, the probability of the union of two events can be expressed as follows:
P(A or B) = P(A) + P(B) - P(A and B)
Where A represents the event of having red hair, B represents the event of being left-handed, and P(A and B) represents the probability of the intersection of the two events. In this case, P(A) = 0.08 and P(B) = 0.15.
Therefore, to find the probability of a randomly selected individual in this community who has red hair or is left-handed, we would need to know the probability of the intersection of the two events, P(A and B).
This would allow us to subtract it from the sum of the individual probabilities, P(A) + P(B), to find the total probability of having red hair or being left-handed.
=> P(A) + P(B) = 0.08 + 0.15 = 0.23
In conclusion, to find the probability of having red hair or being left-handed in this community, we would need to know the probability of the intersection of the two events, P(A and B).
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What is the measure of angle X?
Enter your answer as a decimal in the box. Round only your answer to the nearest hundredth.
m∠X= °
Using a trigonometric relation we will see that the value of x is 81.2°
What is the measure of angle X?We can see that we have a right triangle, and the angle x is the one that is on the top vertex.
We can use any trigonometric relation to find the value of x, for example we can use:
sin(x) = (opposite cathetus)/(hypotenuse)
Where we can see that:
opposite cathetus = 84
hypotenuse = 85
Then we will get:
sin(x) = 84/85
x = Asin(84/85) = 81.2°
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find the value of x , please show how you did it
The value of x in the figure is 15 degrees
How to find the value of xThe value of x in the figure is solved using the concept of sum of exterior angles in a polygon
The sum of exterior angles in a polygon is 360
7x + 83 + 33 + 6x + 49 = 360
collecting like terms
7x + 6x = 360 - 83 - 33 - 49
13x = 195
isolating x
x = 15 degrees
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Identify the graph of the system of linear inequalities.
x+y<1
5x + y > 4
The graph of the system has been attached below. The solution has been obtained by using linear inequality.
What is linear inequality?
If the equals relation were used in its place, a linear inequality would produce a linear equation.
We are given two inequalities as x+y < 1 and 5x + y > 4
For plotting the points, we need to find x and y
1. x+y < 1
So, let y be 0, then
⇒x < 1
This gives us the point as (1,0).
Now, let x=0, then
⇒y < 1
This gives us the point as (0,1).
From these two points, the graph for the inequality is drawn and represented by red line.
2. 5x + y > 4
So, let y be -1, then
⇒5x > 5
⇒x > 1
This gives us the point as (1,-1).
Now, let x=0, then
⇒y > 4
This gives us the point as (0,4).
From these two points, the graph for the inequality is drawn and represented by green line.
Hence, the graph of the system of linear inequalities is obtained.
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what is the area of rectangle with length is 4/7 and width is 3/5
Answer: 12/35 units sqr
Step-by-step explanation: Multiply both values to find area and put proper units.
Answer:
Step-by-step explanation:
The area of a rectangle is given by the formula: area = length x width.
For a rectangle with length 4/7 and width 3/5, the area can be calculated as follows:
area = 4/7 x 3/5
= 12/35
So, the area of the rectangle with length 4/7 and width 3/5 is 12/35 square units.
200 students chose one language to study.
Each student chose one language from French or Spanish or German.
Of the 200 students,
90 are boys and the rest of the students are girls
70 chose Spanish
60 of the 104 students who chose French are boys
18 girls chose German.
Work out how many boys chose Spanish.
The number of boys chosen Spanish are 59.
What is Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides. LHS = RHS is a common mathematical formula.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given:
let Girls are G, Boys are B, Spanish choose S, French chosen F and German Chosen Ge.
Total = 200
Girls = 200 - 90 = 110
P(S) = 70 (B+ G)
P(F) = 60 (B)
P(B) + P(G) = 70
S + F = 92
So, 70- G + 44 - G = 92
114 - 2G = 92
-2G = -22
G = 11
So, number of Boys choose Spanish
= 70- 11
= 59
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Can someone please help me with this question. If you do, you’ll be rewarded with brainliest and extra points!
Answer:
EG/HJ=GF/JI or EG/HJ=FE/IH
Step-by-step explanation:
Given
AngleF=AngleI
AngleE=AngleH
Therefore triangles EGF AND HJI are similar by Angle-Angle Similarity Theorem
So
EG/HJ=GF/JI=FE/IH as they are the corresponding sides of a similar triangle
determine the equation of the line that passes through the point (-9, -30) and is parallel to the line y=4x+1
Answer: This is the answer
Step-by-step explanation:
Gary takes a suitcase and backpack on an airplane. The suitcase weighs 4 times as much as the backpack. The suitcase and the backpack together weigh 40 lb. HURRY!!! PLS :( Thank You, too!
The bottom of a circular swimming pool with a radius of 30ft, was painted blue. How many square feet of the pool was painted blue?
Answer:
2826 sqft
Step-by-step explanation:
π r² = 900π =2826
1/5 divided by 3/5 it wont say the answer
Answer:Exact Form:
1/3
Decimal Form:
0.33333333333
Step-by-step explanation:
Answer:
1/3 or 0.333333333333333333333333333333333333
Step-by-step explanation:
1/5 / 3/5
Dividing can be done by multiplying the number by its reciprocal (flipped).
So, 3/5 has a reciprocal of 5/3
1/5*5/3 = 5/15
5/15 = 1/3 or 0.33333(repeated forever)
A rocket is launched in the air. Its height in feet is given by h(t)= -16t^2+88t where t represents the time in seconds after launch. How long is the rocket in the air?
Answer: ___ seconds
For the given height function h(t)= -16t²+88t the rocket is in the air for 5.5 seconds.
Height of the launched rocket is equal to :
h(t)= -16t²+88t
Time is represented by 't' in seconds after launch
'h' represents the height of the rocket.
For how long time rocket is in the air :
h(t) = 0
⇒ -16t²+88t = 0
⇒ t ( -16t+88 ) = 0
⇒ t = 0 or ( -16t+88 ) = 0
value of time 't' cannot be equal to zero.
This implies ( -16t+88 ) = 0
⇒16t = 88
⇒ t = 88 / 16
⇒ t = 5.5 seconds
Therefore, the time for which rocket is in the air as per given height function is equal to 5.5 seconds.
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Given: KLMN is a trapezoid, KL=MN,
m∠1=m∠2,
LM:KN = 8/9, PKLMN=132
Find The length of midsegment
KLMN is a trapezoid where KL=MN and m∠1=m∠2 . It is also given that LM:KN = 8/9 and PKLMN=132.The midsegment is 34 units long.
The trapezoidal shape KLMN, where KL = MN.
m∠1=m∠2
Moreover, LM/KN = 8/9
Additionally, KLMN's perimeter is 132 units.
The midsegment's size (KM).
We can see that in the above case, KM is a transversal in relation to the parallel lines LM and KN. which implies,
∠KML=∠MKN
∠1=∠2
Two base angles are clearly equal. So, KLM and KMN are isosceles triangles.
Using the side ratios of two triangles as an example,
= KL: LM: MN: KN
= 8 : 8 : 8 : 9
The ratio units add out to 8 + 8 + 8 + 9 = 33. Consequently, each ratio's value is,
=[tex]\frac{perimeter}{33} \\\\\frac{132}{33} \\\\=4[/tex]
The segment LM's length is thus,
LM=8×4=32
Additionally, section KN's length is
KN=9×4=36
Taking the average of LM and KN as, one can then determine the length of the midsegment KM.
[tex]KM=\frac{LM+KN}{2} \\\\\\KM=\frac{32+36}{2}[/tex]
KE=34
As a result, the midsegment is 34 units long.
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Polygon ABCD is drawn with vertices at A(1, 5), B(1, 0), C(−1, −1), D(−4, 2). Determine the image vertices of D′ if the preimage is rotated 90° counterclockwise.
D′(−2, −4)
D′(−2, 4)
D′(2, 4)
D′(4, −2)
The image vertices of D′ if the preimage is rotated 90° counterclockwise is: A. D′(−2, −4).
What is a rotation?In Geometry, the rotation of a point 90° about the center (origin) in a counterclockwise (anticlockwise) direction would produce a point that has these coordinates (-y, x).
By applying a rotation of 90° counterclockwise to the vertices for D, the coordinates of the vertices of the image point D' are as follows:
(x, y) → (-y, x)
Ordered pair D = (-4, 2) → Ordered pair D' = (-2, -4)
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At a university, the student body is made up of approximately 12000 students. Of that total, there are approximately 3500 graduate students and 8500 undergraduate students. Which of the following fractions represents the ratio of undergraduate students to graduate students?
Step-by-step explanation:
Seeing the question, I assume there are answer choices, but I'll give all possible answers below.
A ratio is pretty much a fraction, that's about it. It's asking the ratio of undergraduate to graduate, which creates
[tex] \frac{undergraduate}{graduate} [/tex]
Now we plug in those numbers in the correct spots
[tex] \frac{8500}{3500} [/tex]
Now to simplify. Since both of these numbers end in 0, there a little truck you can do to automatically make it smaller, and that's getting rid of all the 0s on the end. That makes it...
[tex] \frac{85}{35} [/tex]
To continue simplifying
[tex] \frac{8500}{3500} = \frac{85}{35} = \frac{17}{7} [/tex]
if x,y,z are different and =mod x x^2 1+x^3
y y^2 1+y^3 = 0 then show than 1+xyz=0
z z^2 1+z^3
Given that x, y, z are different and satisfy the equations:
x^3 + x^2 - x = 0
y^3 + y^2 - y = 0
z^3 + z^2 - z = 0
We can multiply the first equation by y, the second by z, and the third by x to obtain:
x^3y + x^2y - xy = 0
y^3z + y^2z - yz = 0
z^3x + z^2x - zx = 0
Adding these three equations together, we get:
x^3y + x^2y - xy + y^3z + y^2z - yz + z^3x + z^2x - zx = 0
Expanding and simplifying, we find that:
x^2y + xy^2 + y^2z + yz^2 + z^2x + zx^2 - xy - yz - zx = 0
Now, we use the fact that x, y, and z are roots of the equations given above to simplify the expression further:
x^2 - x + y^2 - y + z^2 - z = 0
We can also write this as:
(x - 1)(x + 1) + (y - 1)(y + 1) + (z - 1)(z + 1) = 0
This expression can be factorized as:
(x - 1)(x + 1)(y - 1)(y + 1)(z - 1)(z + 1) = 0
Since x, y, and z are all different, we have that:
(x - 1)(x + 1) ≠ 0
(y - 1)(y + 1) ≠ 0
(z - 1)(z + 1) ≠ 0
Therefore, we have:
(x - 1)(x + 1)(y - 1)(y + 1)(z - 1)(z + 1) = (x - 1)(x + 1)(y - 1)(y + 1)(z - 1)(z + 1) = 0
So, we can conclude that:
xyz = -1
And,
1 + xyz = 0
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Write an exponential decay function to model each situation. Then estimate the value of x for the given value of f(x)
initial value: 100
decay factor: .95
f(x)=60
Answer:
f(x) = 100(0.95^x)x ≈ 9.959 for f(x) = 60Step-by-step explanation:
You want the value of x that makes f(x) = 60, when f(x) is the exponential function with an initial value of 100 and a decay factor of 0.95.
Exponential functionThe form of an exponential function is ...
f(x) = (initial value) · (decay factor)^x
ApplicationFor the given initial value and decay factor, the function is ...
f(x) = 100 (0.95^x)
Solving for x, we find ...
f(x)/100 = 0.95^x
log(f(x)/100) = x·log(0.95)
x = log(f(x)/100)/log(0.95)
For f(x) = 60, the value of x is about ...
x = log(60/100)/log(0.95) ≈ 9.959
The value of x is about 9.959.
Put the equation in
slope-intercept form.
y - 4x = 17
y = 4x + [?]
Enter
Answer: To put the equation y - 4x = 17 in slope-intercept form, we need to isolate the y variable on one side of the equation and have the coefficient of x be the slope of the line and the constant term be the y-intercept.
Slope-intercept form is written as y = mx + b, where m is the slope and b is the y-intercept.
Starting with the equation y - 4x = 17, we can isolate y by adding 4x to both sides:
y - 4x + 4x = 17 + 4x
y = 4x + 17
So, the equation in slope-intercept form is y = 4x + 17, where the slope (m) is 4 and the y-intercept (b) is 17.
Step-by-step explanation:
y-4x = 17
slope intercept= y= 4x + 17
PLS ASAP!! WILL GIVE BRAINLEST
The sides and angle of the right triangle are as follows:
b = 57.2 unitsc = 57.4 unitsB = 85 degreesHow to find the side and angles of a right triangle?A right angle triangle is a triangle that has one of its angles as 90 degrees. The sum of angles in a triangle is 180 degrees.
Therefore, the side of the triangle can be found using trigonometric ratios as follows:
Hence,
tan 5 = opposite / adjacent
tan 5 = 5 / b
b = 5 / tan 5
b = 57.1506949525
Hence,
b = 57.2 units
sin 5 = opposite / hypotenuse
sin 5 = 5 / c
c = 5 / sin 5
c = 57.3685943662
c = 57.4 units
B = 180 - 90 - 5
B = 85 degrees
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Match the square root expression with it's correct simplified radical.
The square root expression with it's correct simplified radical can be matched as follow:
√45 = 3√5
√200 = 10√2
√80 = 4√5
√24 = 2√6
How to match the square root expression with it's correct simplified radical?
A simplified radical is a radical expression in which the radicand (the expression inside the square root symbol) has been simplified as much as possible. For example, the simplified form of √8 is 2√2.
√45 = √(9*5) = √9 * √5 = 3 * √5 = 3√5
√200 = √(100*2) = √100 * √2 = 10 * √2 = 10√2
√80 = √(16*5) = √16 * √5 = 4 * √5 = 4√5
√24 = √(4*6) = √4 * √6 = 2 * √6 = 2√6
Thus, match the square root expression with it's correct simplified radical accordingly.
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A farmer takes 250 chickens to be sold at a market. In the first hour he sells 8% of his chickens. In the second hour he sells 10% of those that were left. What percentage of the original number did he manage to sell in the two hours?
Answer:
17.2%
Step-by-step explanation:
In the first hour:
The farmer sells 8% of the total chickens:
[tex]= \frac{8}{100}[/tex]×[tex]250[/tex]
= 20 chickens
Therefore, the number of chickens left are:
= (250 - 20) chickens
= 230 chickens
In the second hour:
The farmer sells 10% of the chickens left:
= [tex]\frac{10}{100}[/tex]×[tex]230[/tex]
= 23 chicken
∴ The total number of chickens sold in the two hours = (20 + 23) chickens
= 43 chickens
43 has to be expressed as a percentage of the original number (i.e. 250)
Percentage = [tex]\frac{Number Of Chickens Sold}{Total Number Of Chickens}[/tex]×[tex]100[/tex]%
= [tex]\frac{43}{250}[/tex]×[tex]100[/tex]%
= 17.2%
whats the expression (2x+3)(2x-4)
Answer:
[tex] {4x}^{2} - 2x - 12[/tex]
Step-by-step explanation:
To complete this problem, use FOIL. First, Outer, Inner, Last.
(2x + 3)(2x - 4)
First, multiply 2x by 2x.
[tex] {4x}^{2} [/tex]
Now, multiply the outer numbers, 2x and -4.
[tex] - 8x[/tex]
Third, multiply the inner numbers, 3 and 2x.
[tex]6x[/tex]
Lastly, multiply the last numbers, 3 and -4.
[tex] - 12[/tex]
Now, put it all together.
[tex] {4x}^{2} - 8x + 6x - 12[/tex]
The final step is to combine like, or similar terms.
The only ones that can be combined are -8x and 6x.
[tex] {4x}^{2} - 2x - 12[/tex]
Consider the series.
1000+200+40+8+8/5
Does the series converge or diverge?
Select answers from the drop-down menus to correctly complete the statements.
The Given Series 1000+200+40+8+8/5 is Convergent.
What is Convergent and divergent Series?If a series converges to a value as its terms approach to infinity, it is said to be convergent. If a series does not converge to a value but instead keeps on increasing or dropping as the terms of the series tend to infinity, it is said to be divergent.
Given:
The series is given as 1000+200+40+8+8/5
The common ratio is
200/1000
= 1/5
Then,40/200
= 1/5
= 0.2
Now, As the common ratio is < 1 so the series is convergent.
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Look at the digram.
If AB BC and AB = 18 inches, AE = 5 inches, and CE = 6 inches, what is the length of AD?
A. 1.5 inches
B. 2.5 inches
C. 6.5 inches
D. 7.5 inches
Length of AD is, 2.5 inches
What is Proportional?Any relationship that is always in the same ratio and quantity which vary directly with each other is called the proportional.
Given that;
Values are,
AB = 18 inches,
AE = 5 inches,
CE = 6 inches,
Let the length of ED = x
Now, By the figure,
⇒ ΔABD ≈ ΔECD
Hence, By definition of proportional we get;
⇒ AB / AD = EC / ED
⇒ AB / (AE + ED) = EC / ED
⇒ 18 / (5 + x) = 6 / x
⇒ 3x = 5 + x
⇒ 3x - x =5
⇒ 2x = 5
⇒ x = 2.5 inches
Thus, Length of AD is, 2.5 inches
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Find the circumference of a circle with the diameter of 3 yd
Answer:
Step-by-step explanation:
Circumference = 2piR or piD
pi(3) = 9.42
someone ate 3 out of 5 bagels in the bag what percent of the bagels r left
Answer:
40%
Step-by-step explanation:
If someone ate 3 out of 5 bagels, then there are 5 - 3 = 2 bagels left.
To find the percentage of the bagels that are left, you need to divide the number of bagels left by the total number of bagels and multiply by 100.
So, the percentage of the bagels that are left is (2 / 5) * 100 = 40%.
An online clothing company sells custom sweatshirts. The company charges $6.50 for each sweatshirt and a flat fee of $3.99 for shipping. describe how the linear function would change if the shipping charge applied to each sweatshirt.
The description is that a unit increment in the number of sweatshirt will cause a $6.50 increment in the total charges
How to describe how the linear function would changeFrom the question, we have the following parameters that can be used in our computation:
The company charges $6.50 for each sweatshirt Flat fee of $3.99 for shippingUsing the above as a guide, we have the following:
Slope = 6.50
This means that a unit increment in the number of sweatshirt will cause a $6.50 increment in the total charges
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help me on this question please
Answer:
62
Step-by-step explanation:
you have to work out the surface area of a cuboid by:
3×2=6
5×3=15
5×2=10
sum of all the areas is 31
then times it by 2 which is 62
you don t really have to pay attention to the net, apart from the 2cm because you don t want to use it twice in the calculation.
suppose is an matrix that can be obtained from using the row operations (in the given order) what is ?
we add row 1 to row 3 to get the final matrix = [3, 0, 3; 1, 1, 1; 0, 0, 0]. Thus, the new matrix is obtained by applying the given row operations in the given order.
Let A be a given matrix.
Row Operation 1: Exchange row 1 and row 2.
Row Operation 2: Multiply row 1 by 3.
Row Operation 3: Add row 1 to row 3.
Then,
= [ 3, 0, 3; 1, 1, 1; 0, 0, 0 ]
We can obtain the matrix by applying the row operations in the given order. First, we exchange row 1 and row 2 to obtain the matrix [1, 1, 1; 3, 0, 3; 0, 0, 0]. Then we multiply row 1 by 3 to get [3, 0, 3; 1, 1, 1; 0, 0, 0]. Finally, we add row 1 to row 3 to get the final matrix = [3, 0, 3; 1, 1, 1; 0, 0, 0]. Thus, the new matrix is obtained by applying the given row operations in the given order.
The complete question is :
Suppose [tex]$\begin{bmatrix}4 & -2 & 3 \\2 & 3 & 1 \\5 & 1 & -2\end{bmatrix}$[/tex] is an matrix that can be obtained from [tex]$\begin{bmatrix}1 & 2 & 3 \\3 & 2 & 1 \\2 & 5 & -2\end{bmatrix}$[/tex]using the row operations (in the given order) [tex]$R_1 \leftrightarrow R_2, R_2 - 3R_1, R_3 - 5R_1$[/tex]
What is [tex]$\begin{bmatrix}1 & 2 & 3 \\3 & 2 & 1 \\2 & 5 & -2\end{bmatrix}$[/tex]?
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Question's attached below.
Thanks! :)
Answer:
$ 4564.32
Step-by-step explanation:
APR=2%, monthly interest rate, i=2%/12=0.02/12
Monthly payment, A=250
After 18 monnth, n=18 months,
the balance. Pis therefore
P = A((1+i)^n-1)/i
=250((1+0.02/12)^18-1)/(0.02/12)
=$ 4564.32
.Which is not a method by which minerals form
The option that is not a way by which minerals are being formed is decrystallization. That is option B
What are ways by which minerals are formed?Minerals are organic substances that are form through the following ways;
volcanic gases, sediment formation, oxidation, crystallization from magma, or deposition from a saline fluid,Decrystallization is not a way through which minerals are formed because it is just the break down of solid or crystal structures.
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Complete question:
Which of the following is not a method by which minerals form?. a. crystallization. b. decrystallization. c. water evaporation from a solution. d. cooling of magma or lava