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3 years ago

What is the are of this trapezoid please help

Mathematics

1 answer:

Luden [163]3 years ago

4 0

Answer:

Area = 30 in.

<h3>Step-by-step explanation:</h3>

the formula for an area of a trapezoid is A = (a+b)/2 × h

a = base (or bottom)

b = 2nd base (or top)

h = height

set up your equation as A = (10 + 5)/2 × 4

A = 15/2 × 4

A = 7.5 × 4

A = 30

The area of the trapezoid is 30 in.

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nydimaria [60]

Answer:

see attached

Step-by-step explanation:

graph y = -3/2x - 2

x Intercept: 0 = -3/2x -2

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2 years ago

You and your friend collect 180 cans for a food drive. The ratio of cans you collected to cans your friend collected is 4 to 5.

marissa [1.9K]

Are you looking for the number of cans you and your friend each collected? If yes, here is the solution:

Let x be the number of cans.

4x + 5x = 180
9x = 180
9x/9 = 180/9 (divide both sides of the equation by 9)
x = 20

Now, substitute the values:
4(20) + 5(20) = 180
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Therefore, you collected 80 cans and your friend collected 100 cans.

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3 years ago

A one-tailed test is a a. hypothesis test in which rejection region is in one tail of the sampling distribution b. hypothesis te

garri49 [273]

Answer:

Option A) One tailed test is a hypothesis test in which rejection region is in one tail of the sampling distribution

Step-by-step explanation:

One Tailed Test:

A one tailed test is a test that have hypothesis of the form

$H_0: \bar{x} = \mu\\H_A: \bar{x} < \mu\text{ or } \bar{x} > \mu$

A one-tailed test is a hypothesis test that help us to test whether the sample mean would be higher or lower than the population mean.
Rejection region is the area for which the null hypothesis is rejected.
If we perform right tailed hypothesis that is the upper tail hypothesis then the rejection region lies in the right tail after the critical value.

If we perform left tailed hypothesis that is the lower tail hypothesis then the rejection region lies in the left tail after the critical value.

Thus, for one tailed test,

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2 years ago

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frutty [35]

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3 0

3 years ago

Which is the correct way to evaluate f(15) for the function f(x)=2(x+3)?

Thepotemich [5.8K]

Answer:

the first option

Step-by-step explanation:

Start by substituting 15 for x. Then, simplify to get f(15)=36.

cuz

f(x)=2(x+3)

f(15)=2(15+3)

= 2×18=36

gimme brainliest plz

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3 years ago