Answer: A. x^3 +x^2-8x+4 B. 10
Step-by-step explanation: (f•g)(x) is the same as f(x) • g(x)
A. (x^2+3x-2) • (x-2) = (x^3+3x^2-2x) -(2x^2+6x-4) -> x^3 +x^2-8x+4
B. plug in -3 for x -> (-3)^3 + (-3)^2 -8(-3) + 4 -> 10
A conglomerate of Christmas tree growers in Oregon wants to know if there is a difference in preference for live Christmas trees between urban and rural regions of the state. They randomly surveyed 160 rural households that put up a Christmas tree the previous season and found that 64 had used a live tree. In a separate random survey, 89 of 261 urban household had put up a live tree the previous season. The 95% confidence interval for the difference of the true proportion of all households (rural - urban) in Oregon that preferred a live tree is between -0.036 and 0.154. Based on the confidence interval, is there convincing evidence that the two population proportions are different
Answer:
0 is part of the confidence interval, which means that there is not convincing evidence that the two population proportions are different.
Step-by-step explanation:
Based on a confidence interval for the difference of proportions, there will be significant evidence that the proportions are different if 0 is not part of the confidence interval for the difference of proportions.
In this question:
Confidence interval between -0.036 and 0.154
0 is part of the confidence interval, which means that there is not convincing evidence that the two population proportions are different.
PLEASE HELP
How do I solve 7,9, and 10 also what are the answers?
which graph represents the function f(x)=4|x|?
Answer:
I think this is what the graph looks like.
Step-by-step explanation:
I hope this helps.sorry if it's wrong.
Answer:
it will go through the points (-1, 4), (0,0), and (1, 4)
Step-by-step explanation:
I need help with this.
Answer:
answer is 2
Step-by-step explanation:
add 1+1 then that gives you 2
subtract 2 from 1 that gives you 1
final answer: 1
Answer:
1/4=25%
Each section has 25% probability of the spinner landing on it
how can I subtract 4/3 - 1/3
Answer:
1
Step-by-step explanation:
Since they have the same denominator, it would be:
[tex]\frac{4}{3}-\frac{1}{3}=\frac{4-1}{3} =\frac{3}{3}=1[/tex]
Find the perimeter of the rectangle whose vertices are the points with coordinates (-2,5), (6,5), (-2,8), and (6,8).
Answer:
22 is the perimeter
Step-by-step explanation:
hope it helps
find the area of the shaded region
Answer:
379.56ft²
Step-by-step explanation:
Oh lordy why, okay we got this:
So we're going to start with the area of the square, this is easy because all of the sides are 25ft, so we just have to plug into our formula for squares (base x height):
25 x 25 = 625
Now we have to do the semicircle, remember that the formula for the area of a circle is pi x radius², we're using 3.14 for pi, so we have to find the radius (half the diameter):
25 ÷ 2 = 12.5
12.5² = 156.25
3.14 x 156.25 = 490.625
Normally we would stop here, but because this is only a semicircle, we have to divide by two:
490.625 ÷ 2 = 245.3125
So, now that we have our two areas, we have to subtract the semicircle from the square:
625 - 245.3125 = 379.6875
Now, I realize that his answer isn't in your cute little word bank, but that because I rounded pi, so the closest is 379.56
So, the area of the figure is 379.56ft²
if this is wrong let me know so I can fix it
hope this helps:)
Janessa is playing a board game with two friends. Using a single die, one friend rolled a four,
and the other friend rolled a three, Janessa needs to roll a number higher than both friends in
order to win the game, and she wants to calculate her probability of winning.
Is the probability of Janessa winning an independent event or dependent event? Why?
O Her probability of winning a dependent event because it does not depend on the results of her
friends' rolls.
Her probability of winning is a dependent event because it depends on the results of her friends' rolls.
O Her probability of winning is an independent event because it does not depend on the results of her
friends' rolls.
O Her probability of winning is an independent event because it depends on the results of her friends'
rolls.
Answer:
it may benright
Step-by-step explanation:
the first one
Answer:
The probability of Janessa winning is an independent event because it is independent of the results of her friends’ rolls.
Step-by-step explanation:
I took the quiz
Mai wants to buy a pair of jeans at the mall. The jeans cost $35.00. She has a coupon for that store. She pays $28.00 for the jeans. What was the percent of her discount?
9514 1404 393
Answer:
20%
Step-by-step explanation:
The discount was $35 -28 = $7. As a percentage of the original price, that is ...
$7/$35 × 100% = 20%
Mai's coupon was for a 20% discount.
A box of 15 cookies cost nine dollars what is the cost for one cookie
Answer:
the cost for one cookie is $0.6(60 cents)
Step-by-step explanation:
9 divided by 15 = 0.6
Answer:
60 cents
Step-by-step explanation:
Cost of 15 cookies = $9
Cost of 1 cookie = 9/15
9/15=0.6
Cual es
el promedio de 50, 45,40?
Answer:
45
Step-by-step explanation:
I’m not sure and please explain how you got the answer pleaseee
Answer:
A
Step-by-step explanation:
Because 30+18=48, and 3(10+6)=48
10+6=16
3•16=48
find the length of the third side of triangle if its midline measures 45cm
Answer:
20 cm is the length of third side of triangle
Step-by-step explanation:
Length of 1st side = a
Length of 2nd side = 10cm = b
Length of 3rd side = 15cm = c
So,
Perimeter of triangle = 45 cm
a+b+c = 45cm
a + 10 + 15 = 45 cm
.'. a = 45-25 cm
= 20 cm
The midline or midsegment has a length equal to half of the third side.
Therefore, the length of the third side is 45 cm × 2 = 90 cm.
Response:
The length of the third side is 90 cmWhich theorem can be used to find the length of the third side?Given:
The length of the midline = 45 cm
Required:
The length of the third side
Solution:
The midline is the line joining the midpoint of two sides of a triangle.
According to the midsegment theorem, the midline of a triangle is
parallel to the third side and has a length equal to half the length of the
third side.
Which gives;
The length of the mid line = [tex]\mathbf{\frac{1}{2}}[/tex] × The length of the third side
Let x represent the length of third side, we have;
45 = [tex]\frac{1}{2}[/tex] × x
Which gives;
The length of the third side, x = 2 × 45 cm = 90 cm
Learn more about the midsegment theorem here:
https://brainly.com/question/24600215
Chad wants to know which professional baseball player is most popular among the 300 students at his school. Which is the most representative and reasonable sample for him to survey?
Answer:
It could be to: collect data from a sample of every twentieth student who arrives at school one day
65 is what percent of 120?
(round to the nearest percent)
Answer:Lets say 60 is rounded to 60. So 60 is half of 120 , which means that the answer is a little bit more than 50% since 50x2=100%
So 50 plus the 5 we took away from the 60 in the beginning is 55%
I think your answer is 55%
Step-by-step explanation:
Your answer is 55%
The percentage of 65 out of 120 will be 54.167%.
What is the percentage?The amount of any product is given as though it was a proportion of a hundred. The ratio can be expressed as a quarter of 100. The phrase % translates to one hundred percent. It is symbolized by the character '%'.
The percentage is given as,
Percentage (P) = [Final value - Initial value] / Initial value x 100
The whole numbers are 65 and 120.
Then the percentage is written as,
P = (65 / 120) x 100
P = 0.54167 x 100
P = 54.167%
The percentage of 65 out of 120 will be 54.167%.
More about the percentage link is given below.
https://brainly.com/question/8011401
#SPJ2
The area of a triangle is 36 square inches. What is the height of the triangle if the base length is 8 inches? (3 points) a 8 inches b 9 inches c 12 inches d 6 inches
9514 1404 393
Answer:
b. 9 inches
Step-by-step explanation:
The area of a triangle is given by ...
A = 1/2bh
Solving for h, we get ...
h = 2A/b
h = 2(36 in²)/(8 in) = 72/8 in
h = 9 in
The height of the triangle is 9 inches.
Solve the equation for the value of x
-6=x/-4
Please show your work, thank you.
Please help, will mark Brainly and if you need help with anything I’ll help with any work you send
Answer:
first
[tex]9(x + 7) \\ second \: \: 7x(x + 5)[/tex]
WILL MARK BRAINLIEST
Solve for x
65
10
55
8
Answer:
x = 10
Step-by-step explanation:
Measure of the angle with it's vertex inside a circle = ½(sum of intercepted arcs)
Thus,
m<E = ½(HL + GF)
Substitute
60 = ½(55 + 5x + 15)
Multiply both sides by 2
2(60) = 55 + 5x + 15
120 = 5x + 70
120 - 70 = 5x
50 = 5x
50/5 = x
10 = x
x = 10
Mr. Markle has a jar on his desk that contains 10 marbles shown.
What is the likelihood that a red marble will be chosen?
Answer:
10% or 1/10 Or very Low ..
An angle turns through 2/6 of a circle. What is the measure of the angle?
Step-by-step explanation: coxhck dewmsaksak sadjnsajmksa
A square has an area of 16x^2 square inches. If the sides of the square were to increase by 2 units, what is the new area of the square?
Answer:
16x² + 64x + 64
Step-by-step explanation:
Given
A = 16x²
Increasing the sides by 2, substitute x = x + 2 into A
A = 16(x + 2)² ← expand factor using FOIL
= 16(x² + 4x + 4 ) ← distribute
= 16x² + 64x + 64
the area of one face of a cube is 36 square feet. what is the volume of a cube that has edges twice as long?
a. 144 feet cubed
b. 216 ft cubed
c. 1,728 ft cubed
d. 5832 ft cubed
Which point is at 1 on the number line?
Choose 1 answer:
(Choice A)
A
(Choice B)
B
(Choice C)
C
(Choice D)
D
the table shows a sprinter's times in seconds for the 100 meter dash at the first meets of a season what sprinters time for the 100 meter dash at these meets
Answer:
10.116
Step-by-step explanation:
Add up all the times and then divide it by the number terms
A city has the population of 210,000 people. Suppose that each year the population grows by 7.5%. What will the population be after 13 years?
Answer:drip
Step-by-step explanation:
1 2 4
The empty gas tank of a truck needs to be completely filled. The tank is shaped like a cylinder that is 5 ft long with a diameter of 2.4 ft. Suppose gas is poured into the tank at a rate of 2.3ft^3 per minute. How many minutes does it take to fill the empty tank? Use the value 3.14 for pie and round your answer to the nearest minute. Do not round any intermediate computations.
Answer:
Step-by-step explanation:
h = 5 ft
diameter = 2.4 ft
Radius is half of diameter
r = 2.4/2 = 1.2 ft
Now, find the volume of the tank
Volume = πr²h
= 3.14 * 1.2 *1.2 * 5
= 22.608 cubic ft
Time taken to fill the tank = Volume of tank ÷ volume of gas filled per minute
= 22.608 ÷ 2.3
= 9.8
= 10 minutes
you walk into a store that is closing. the pants normally cost $60.00 but it is discounted 75% they are also taking additional 20% of what is the final price that you pay for the pants?
Answer:
The final cost of the pants is $ 12.
Step-by-step explanation:
Given that at a store that is closing the pants normally cost $ 60.00 but it is discounted 75%, and they are also taking an additional 20% off, to determine what is the final price for the pants, the following calculation must be performed:
100 - 20 = 80
(60 - (60 x 0.75)) x 0.80 = X
(60 - 45) x 0.80 = X
15 x 0.80 = X
12 = X
Thus, the final cost of the pants is $ 12.
A tabletop in the shape of a trapezoid has an area of 7,701 square centimeters. Its longer base measures 119 centimeters, and the shorter base is 85 centimeters. What is the height?
Second attempt, please just give me the answer :p
Answer:
75.5 cm
Step-by-step explanation:
S = (a+b)*h/2
h = 2 * S / (a+b) = 2 * 7701 / 204 = 75.5 cm
PLEASE HELP ILL GIVE YOU
Answer: No she cannot cover it
Step-by-step explanation:
1yd² = 1296in²
16 x 11 x 9 = 1584in²
1296in² < 1584in²