Leslie asked a representative sample of 40 of her classmates about their favorite type of movie for an upcoming film festival.
Fill in the table to show reasonable predictions for the whole class.
Her class has a total of 160 students.
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Answer:
Step-by-step explanation:
Related Questions
What is the value of the product (3 – 2i)(3 2i)? 5 9 4i 9 – 4i 13
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Answer:
[tex]\left( 3-2i\right) \left( 3+2i\right) =13[/tex]
Step-by-step explanation:
Note :
i² = −1
(a - b)(a + b) = a² - b²
________________
[tex]\left( 3-2i\right) \left( 3+2i\right) =3^{2} - (2i)^2[/tex]
[tex]=9 - (2)^2\times i^2[/tex]
[tex]=9 - 4(i)^2[/tex]
[tex]=9-4\times(-1)[/tex]
[tex]=9+4[/tex]
[tex]=13[/tex]
Answer: (3 – 2i)(3 2i)=13
Step-by-step explanation:
edge2020
There is a bag filled with 3 blue, 4 red and 5 green marbles.
A marble is taken at random from the bag, the colour is noted and then it is replaced.
Another marble is taken at random.
What is the probability of getting 1 blues?
Answers
Answer:
[tex]\frac{1}{4}[/tex]
Step-by-step explanation:
As you can see, there are 3 blue marbles, and the amount in total is 12, so the answer is 3/12. 3/12 simplified is 1/4.
Hope This Helps! :) Please give brainliest if you can!
Check whether the relation R defined in the set {1, 2, 3, 4, 5, 6} as
R = {(a, b): b = a + 1} is reflexive, symmetric or transitive.
Answers
Answer:
The answer is R is neither reflexive, nor symmetric, nor
transitive.
Step-by-step explanation:
Let A = {1, 2, 3, 4, 5, 6}.
A relation R is defined on set A as:
R = {(a, b): b = a + 1}
R = {(1, 2), (2, 3), (3, 4), (4, 5), (5, 6)}
We can find (a, a) ∉ R, where a ∈ A.
For instance,
(1, 1), (2, 2), (3, 3), (4, 4), (5, 5), (6, 6) ∉ R
R is not reflexive.
It can be observed that (1, 2) ∈ R, but (2, 1) ∉ R.
R is not symmetric.
Now, (1, 2), (2, 3) ∈ R
But, (1, 3) ∉ R
R is not transitive
Thus, R is neither reflexive, nor symmetric, nor transitive.
Determine algebraically whether the function is even, odd, or neither even nor odd. f(x) = x^2
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Answer:
The function is even
good luck
How to calculate grade in class with weighted percentages?.
Answers
Answer:
Multiply the grade on the assignment by the grade weight. In the example, 85 times 20 percent equals 17, and 100 times 80 percent equals 80.
Step-by-step explanation:
Question 6 of 10
The slope of the line below is -3. Which of the following is the point-slope
form of the line?
5
(2,-2)
O A. y-2 = 3(x+2)
O B. y + 2 = -3(x - 2)
O C. y2 = -3(x+2)
O D. y + 2 = 3(x-2)
Answers
The point-slope form of the line is y + 2 = -3(x - 2). The correct option is B. y + 2 = -3(x - 2)
Point-slope form of an equation of a lineFrom the question, we are to determine the point-slope form of the given line
The point-slope form of an equation of a straight line is written as
[tex]y-y_{1}=m(x-x_{1})[/tex]
Where m is the slope and [tex](x_{1},\ y_{1})[/tex] is a point on the line
From the given information,
m = -3
And in the diagram,
One of the points on the line is (2, -2)
Therefore, we can write that
x₁ = 2 and y₁ = -2
Substituting into the point-slope form of an equation of a line,
We get
y - (-2) = -3(x - 2)
This becomes
y + 2 = -3(x - 2)
Hence, the pointslope form of the line is y + 2 = -3(x - 2). The correct option is B. y + 2 = -3(x - 2)
Learn more on Point slope form of an equation of a straight line here: https://brainly.com/question/8386231
The diagram for the question is attached below.
The ratio of green cars to yellow cars in a car park is 89 : 61.
Rewrite this as an equivalent ratio of the form n :1.
Give any decimals in your answer to 2 d.p.
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Hope this helps :)
16-2t=5t+9
Answer
equation
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Answer:
t=1
Step-by-step explanation:
16-2t=5t+9
step 1 :group like term to the same side
16-9=5t+2t
step 2 : combine
7=7t
step 3: solve for t
t=7/7
t=1
PLEASE HELP
Given f(x) = - 5x + 2 g(x) = 1/2 * x + 4 and find f(g(x)) .
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Answer:
-5x/2 - 30
Step-by-step explanation:
Oop I placed it in the wrong spot
Place the give into the formula
f(g(x)) = f(x/2+4)
Plug it in
-5(x/2+4)+2
Simplfy
-5x/2-20-10
Answer:
-5x/2 - 30
????!!!!??!!?!!?!!?!!?!!!!?!!!!
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Answer:
A.Step-by-step explanation:
if both increases the volume also increase as the same i.e.
twice length and twice radius = twice the volume of wax
MARK ME AS BRAINLISTWrite an expression for two times the difference of eight and d. step by step
Answers
Answer:
2(8-d)
Step-by-step explanation:
Because it says 2 times the difference this means the difference will be multiplied by 2. It also says difference which means that 8 and d must be subtracting
A person invests 6000 dollars in a bank. The bank pays 5.75% interest compounded daily. To the , how long must the person leave the money in the bank until it reaches 11600 dollars?
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Answer:
x=11.5
Step-by-step explanation:
What number should be subtracted from (3/4+-1/3) to get 1/4
Answers
Answer:
5/6
Step-by-step explanation:
( 3/4+1/3) = 3 × 3/ 4 × 3 + 1 × 4/ 3 × 4 = 9/12 + 4/12 = 9+4/ 12 = 13/ 12 = 1 1/12
13/ 12 - 1/ 4 = 13/ 12 - 1 × 3/ 4 × 3 = 13/ 12 - 3 / 12 = 13 - 3 / 12 = 10 / 12 = 10 ÷ 2 / 12 ÷ 2 = 5/6
13/ 12 - 5/ 6 = 13/ 12 - 5 × 2/ 6 × 2 = 13/ 12 - 10/ 12 = 13 - 10/ 12 = 3/ 12 = 3 ÷ 3/ 12 ÷ 3 = 1/4
Find the missing angle
Answers
Step-by-step explanation:
a + 156° = 180° ( supplementary angle )
a = 180° - 156°
a = 24°
180-156 is a. This is because a plus 156 is 180.
So answer for a is 24. This makes sense since 156 is about 6.5 times bigger than a.
Please mark as best!
please help with 2 in the picture.
Answers
Answer:
4
Step-by-step explanation:
18.
Is the data point, P, an outlier, an influential point, both, or neither?
A. Neither
B. Influential point
C. Outlier
D. Both
Answers
Which sentence explains the correct first step in the solution of this equation?
4(x−3)=9
Add 2 to both sides.
Apply the distributive property to get 4x−12=9.
Apply the distributive property to get 4x−3=9.
Subtract 9 from both sides.
Answers
Answer:
B. Apply the distributive property to get 4x-12=9[tex]\boxed{\sf{x=\dfrac{21}{4}=5.25 }}[/tex]
Step-by-step explanation:
Isolate the term of x from one side of the equation.
Use the distributive property.
Distributive property:
[tex]\Longrightarrow: \sf{A(B+C)=AB+AC}[/tex]
4(x-3)=9Expand the form multiply.
4*x=4x
4*3=12
Rewrite the problem down.
4x-12=9
Add by 12 from both sides.
4x-12+12=9+12
Solve.
Add the numbers from left to right.
9+12=21
4x=21
Divide by 4 from both sides.
4x/4=21/4
Solve.
Divide the numbers from left to right.
x=21/4
21/4=5.25
x=21/4=5.25
Therefore, the final answer is x=21/4=5.25.I hope this helps you! Let me know if my answer is wrong or not.
The answer is B. Apply the distributive property to get 4x−12=9. You would do 4 times x to get 4x and then 4x3 to get 12. Then apply that information to the equation to get 4x−12=9.
Explain the transformation of the graph from f(x)=x^2 to g(x)=x^2-6
Answers
Answer: the graph is shifted 6 units down
Step-by-step explanation:
HELPP!!!! Tyrell is working on the middle school yearbook. He wants to fit a 4×6 inch photo into a space that is 3 inches wide. At what percent should he set the copier zoom button to achieve this size?
Answers
Answer:
50%
Step-by-step explanation:
Step one:
By convention, the dimension of a shape is described as
Lenght first, followed by width
Hence
lenght = 4 in
Width = 6 in
Step two:
Therefore, to achieve a new width of 3 in, the initial width must be divided by 2, which is a 50% reduction.
3/6*100
0.5*100
=50%
Answer:its 75 percent
Step-by-step explanation:
The radius, R, of a sphere, is 6.3cm. Calculate the sphere's volume, V.
Use the value 3.14 for, and round your answer to the nearest tenth. (Do not round any intermediate computations.)
Answers
Answer:
V = 1046.9
Step-by-step explanation:
The equation for volume is (4/3)pi r^3
substitute 3.14 in for pi and 6.3 in for r so (4/3)*3.14*6.3^3
Solve for the unknown angle measure θ.
A. θ=112.5
B. θ=120
C. θ=144
D. θ=150
Answers
In the given polygon-
>>Two of the angles are of 90⁰
The sum of all angle in n-sided polygon is given by -
[tex]\green{ \underline { \boxed{ \sf{(n-2)\times180}}}}[/tex]
Here number of sides,n = 8
So ,the sum of all angle = [tex]\sf (8-2)\times 180[/tex]
[tex]\sf \implies 6 \times 180[/tex]
[tex]\sf \implies 1080 \degree[/tex]
>>Since two of the angles are of 90⁰ ,let's subtract them from total angle sum to get angles in term of [tex]\theta[/tex] only.
[tex]\implies \sf 1080- 2\times 90[/tex]
[tex]\implies \sf 1080- 180[/tex]
[tex]\implies \sf 900 \degree [/tex]
Now, Sum of remaining 6 angles = 6[tex]\theta[/tex]
Also, 6[tex]\theta[/tex] = 900⁰
[tex]\theta = \dfrac{900}{6}[/tex]
[tex]\theta = 150 \degree[/tex]
Answer:
heya ^^
let's first see what the question says -
so , we're given an octagon and the figure states that two of the angles of the octagon are of measure 90°.
while , rest of the angles have been named [tex] \bold{\theta }[/tex] and this thing clears that all the other angles are of equal measure.
now , angle sum property of octagon states that the sum of all the angles of an octagon equals 1080.
therefore ,
[tex]\bold{90 \degree + 90 \degree + \theta+ \theta+ \theta+ \theta+ \theta+ \theta = 1080 \degree }\\ \\ 180\degree + 6\theta = 1080\degree \\ \\ 6\theta = 1080\degree - 180\degree \\ \\ 6\theta = 900\degree \\ \\ \theta = \frac{900}{6} \\ \\ \underline\bold\pink{\: \theta = 150\degree}[/tex]
therefore ,
option ( D ) θ=150 is correct.
hope helpful :D
The sum of two numbers is 37 the larger number is 21 more than the smaller number what are the numbers
Answers
The sum of two numbers is 37:
This would look like-
a + b = 37
Then the next part
The larger number to 21 more than the smaller number.
So, that would mean that a (let’s say that’s the bigger number) would be 21 more than the smaller number (b).
This would mean:
a = 21 + b.
Now that we know what a is, we can replace it in the equation.
(21 + b) + b = 37
I’m not sure whether you should solve it further or just keep the equation as it is.
If you want me to tell you how to solve the equation just reply in the comments! But i’m sure you can figure it out :)
Answer: a= 24 , B is 13
Step-by-step explanation:
A + B = 37
A = B +21
A bag of marbles has 3 red and 6 green marbles. What is the probability of selecting two red with replacement?
Answers
Answer:
1/9
Step-by-step explanation:
With replacement, we use the principle of multiplication with counting.
[tex]\frac{3redballs}{9total balls} * \frac{3redballs}{9total balls} = \frac{1}{3}* \frac{1}{3} = \frac{1}{9}[/tex]
The probability of selecting two red marbles with replacement is 1/9.
What is probability?Probability is a measure of the likelihood or chance of an event occurring. It is a number between 0 and 1, where 0 means that the event is impossible and 1 means that the event is certain to occur.
If we select a marble at random from the bag, there are 3 red marbles out of 9 total marbles. After replacing the marble back in the bag, the probability of selecting another red marble is still 3/9 (assuming the first marble selected was red).
To find the probability of selecting two red marbles with replacement, we need to multiply the probabilities of each event happening.
Therefore, the probability of selecting two red marbles with replacement can be calculated as follows:
P(selecting two red marbles with replacement) = P(selecting a red marble) x P(selecting a red marble given that the first marble was red)
P(selecting two red marbles with replacement) = (3/9) x (3/9)
P(selecting two red marbles with replacement) = 1/9
Therefore, the probability of selecting two red marbles with replacement is 1/9.
To know more about probability follow
https://brainly.com/question/23947318
#SPJ2
PLEASE HELP!!
Find the missing side lengths. Round decimals to the nearest tenth.
Answers
Answer: 36.2
Step-by-step explanation:
A cashier samples the transaction of every 10th person who goes through the line at a craft store. Out of 40 people, 32 used a coupon. If 750 people go to this store each day, how many people would you expect to use a coupon?
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akdhdufn I l0ve math gisnf
Answers
I love it too man or girl (・∀・)
The Science Club is researching boiling points. They learn that at high altitudes, water boils
at lower temperatures. At sea level, water boils at 212°F. With each increase of 500 feet in
elevation, the boiling point of water is lowered by about 1°F.
a. 212– 1/500 e < 195
b. 1/500 e - 195 < 212
c. 195 - 212e < 1/500
d. 212 – 195e<1/ 500
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The inequality expression that accurately represents the phenomena described in the question is:
212– 1/500 e < 195 (Option A)
Inequalities can be used to represent many real-life problems. Inequalities are similar to equations.
The inequality above represents the situation in which the boiling point of the sea reduces as the altitude increases.
Learn more about inequalities at:
https://brainly.com/question/24372553
someone help me please
Answers
Answer:
The answer is 40^1/2
Step-by-step explanation:
The square root's value is - 1/2
so √4 = 4^1/2
Helppp plssssss!!!!!!
Answers
Answer:
47°
Step-by-step explanation:
All trianges have a angle total of 180°.
Assuming the triangles are equals:
72+61+x=180
x=47
Makoto and his friends rolled two fair number cubes 500 times and recorded the sum of the
numbers shown on the cubes each time. On 42 of the trials the sum was 10. Which of these is
most likely the probability that the sum of the numbers shown on the cubes is 10 when two
fair number cubes are rolled?
Pls help please explain it clearly pls
Answers
Answer:
25,050
Step-by-step explanation:
