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mezya [45]
3 years ago
8

I will give u brainlyist!! pls help

Mathematics
1 answer:
Karolina [17]3 years ago
5 0

Answer:

i believe C

Step-by-step explanation:

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A student wondered if more than​ 10% of students enrolled in an introductory Chemistry class dropped before the midterm. He noti
Ilia_Sergeevich [38]

Answer:

C.It is a​ one-tailed test since the alternative hypothesis states that the parameter is greater than the hypothesized value.

Step-by-step explanation:

Let p be the percentage of students enrolled in an introductory Chemistry class dropped before the midterm. Then null and alternative hypotheses are:

H_{0}: p=10%

H_{a}: p>10%

The alternative hypothesis states that the parameter is greater than the hypothesized value.

3 0
3 years ago
Could someone help out maybe? help would be appreciated!
svetlana [45]

Answer:

i think b

Step-by-step explanation:

4 0
2 years ago
Will mark brainliest, please answer correctly!!!
Mariana [72]

Answer:

The length of BC is 17 units

Step-by-step explanation:

we know that

An isosceles triangle has two equal sides and two equal angles

In this problem we have an isosceles triangle

Because

m∠ACB=m∠ABC ----> given problem

so

AC=AB

substitute the given values

x+9=2x-8

solve for x

2x-x=9+8

x=17

therefore

The length of BC is 17 units

5 0
3 years ago
HELLPPPPPPP BRAINLIEST
zvonat [6]

Answer:

the answer is 5

Step-by-step explanation:

8 0
3 years ago
Hey you guys I am having a LOT of trouble....<br> HeLp a SiStEr OuT PLeZ
goldfiish [28.3K]
<h2>Explanation:</h2><h3>1.</h3>

The little square box in the corner between the vertical line and the horizontal one is a symbol indicating that angle is a right angle. It has a measure of 90°. The angles designated 1 and 2 together add up to that 90°. When angles sum to the value 90°, they are called "complementary" angles.

Since angles 1 and 2 also share a side and a vertex, they are also "adjacent" angles.

The appropriate choices are ...

  • complementary angles
  • adjacent angles

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<h3>2.</h3>

The same lines define the sides of angles 1 and 2, and they share a vertex. However, they are not adjacent. They are ...

  • vertical angles

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<h3>3.</h3>

The angles marked 157° and x° together add up to make a line, so they are supplementary (their total is 180°). They also share a vertex and a side, so they are adjacent. The appropriate choices are ...

  • supplementary angles
  • adjacent angles

___

<h3>4.</h3>

When two angles total 180°, they are <em>supplementary</em>, whether they have any common parts or not. Since 98° + 82° = 180°, ...

  • The angles are supplementary
6 0
3 years ago
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