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3 years ago

The measure of an obtuse angle is

Mathematics

2 answers:

larisa86 [58]3 years ago

6 0

Answer:

C-Greater than 90 and less than 180

Step-by-step explanation:and obtuse angle can go over 180 my rule is if its over 90 its obtuse

Mariulka [41]3 years ago

3 0

Answer:

C. greater than 90 and less than 180 degrees.

Step-by-step explanation:

An obtuse angle is angle in the second quadrant.

This angle is more than $90\degree$ but less than $180\degree$ .

Therefore the correct answer is option C.

Note however that a $90\degree$ angle is called a right angle and an angle greater than $0$ but less than $90\degree$ is called an acute angle.

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What os the slope of a line that is perpendicular to the line shown

Dmitriy789 [7]

Perpendicular lines have slopes that are negative reciprocals.

so first you must find the slope of the line given
the slope formula is

m=(y₂-y₁)/(x₂-x₁)

now you just plug in the coordinate points that you are given

m=(-2-2)/(0-(-3)
m=-4/3

so the slope of the line given is -4/3, the negative reciprocal of this would be 3/4

The slope of the perpendicular line would be 3/4

7 0

3 years ago

4 + 6d = 34<br> Need help solving

stealth61 [152]

Answer:

order of operation

first subtract 4 from both sides

then it is 6d=30

then divide by 6 and your answer if 5

ANSWER=5

please mark brainliest

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

A clinical trial tests a method designed to increase the probability of conceiving a girl. In the study 340 babies were born, a

Bas_tet [7]

Answer:

The 99% confidence interval estimate of the percentage of girls born is (0.8, 0.9).

b)Yes, the proportion of girls is significantly different from 0.5.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence interval $1-\alpha$ , we have the following confidence interval of proportions.

$\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}$

In which

Z is the zscore that has a pvalue of $1 - \frac{\alpha}{2}$ .

For this problem, we have that:

In the study 340 babies were born, and 289 of them were girls. This means that $n = 340, \pi = \frac{289}{340} = 0.85$

Use the sample data to construct a 99% confidence interval estimate of the percentage of girls born.

So $\alpha = 0.01$ , z is the value of Z that has a pvalue of $1 - \frac{0.01}{2} = 0.995$ , so $z = 2.575$ .

The lower limit of this interval is:

$\pi - z\sqrt{\frac{\pi(1-\pi)}{340}} = 0.85 - 2.575\sqrt{\frac{0.85*0.15}{400}} = 0.80$

The upper limit of this interval is:

$\pi + z\sqrt{\frac{\pi(1-\pi)}{340}} = 0.85 + 2.575\sqrt{\frac{0.85*0.15}{400}} = 0.90$

The 99% confidence interval estimate of the percentage of girls born is (0.8, 0.9).

Does the method appear to be effective?

b)Yes, the proportion of girls is significantly different from 0.5.

4 0

3 years ago

You decide to go to a star gazing event there are 12 people in the group

hoa [83]

Answer:

whts the question??

Step-by-step explanation:

8 0

3 years ago

Help with this!!plz. Asap

gizmo_the_mogwai [7]

Hey there! :D

So, we know that there are 3 z's and 3 6's.

3*z= 3z

6*3= 18

3(z+6) <== equivalent expression

3z+18 <== equivalent expression

z is by itself. It shouldn't combine. It should stay the same. 6 as a unit is separate from z.

Choices "B" and "E" are correct.

I hope this helps!
~kaikers

5 0

4 years ago