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IrinaK [193]
2 years ago
12

Which number would you divide the numerator and the denominator of the first fraction to yield the second fraction?

Mathematics
1 answer:
blondinia [14]2 years ago
8 0

Answer:

the number I would to divide the numerator and denominator is 5/5

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Solve the linear equation by combining like terms: 23 + 7 - 2x = 8x
Aleks [24]

Answer:

23+7-2x=8x

We simplify the equation to the form, which is simple to understand  

23+7-2x=8x

We move all terms containing x to the left and all other terms to the right.  

-2x-8x=-23-7

We simplify left and right side of the equation.  

-10x=-30

We divide both sides of the equation by -10 to get x.  

x=3

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Write the quadratic equation in standard form: 2x^2+3x+7=x
Luden [163]

2x²+3x+7=x

2x²+3x-x+7=0

2x²+2x+7=0

5 0
3 years ago
Find the area of the circle and explain how u got the answer  . thanks 
trasher [3.6K]

A = (pi)r^2

diameter = 12 in

radius = d/2 = 6 in

A = (pi)6^2

A = 36(pi)

3 0
2 years ago
Out of 100 people sampled, 42 had kids. Based on this, construct a 99% confidence interval for the true population proportion of
maksim [4K]

Answer:

The 99% confidence interval for the true population proportion of people with kids is (0.293, 0.547).

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 level of 1-\alpha, we have the following confidence interval of proportions.

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

In which

z is the z-score that has a p-value of 1 - \frac{\alpha}{2}.

Out of 100 people sampled, 42 had kids.

This means that n = 100, \pi = \frac{42}{100} = 0.42

99% confidence level

So \alpha = 0.01, z is the value of Z that has a p-value 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)}{n}} = 0.42 - 2.575\sqrt{\frac{0.42*0.58}{100}} = 0.293

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.42 + 2.575\sqrt{\frac{0.42*0.58}{100}} = 0.547

The 99% confidence interval for the true population proportion of people with kids is (0.293, 0.547).

7 0
2 years ago
The supplement of an angle is three times the measure of the angle.
stira [4]

Answer: The angle equals  45 ∘  and the supplement is  135 ∘

Explanation:

Since the supplement is three times the angle, we can say    s  =  3 a

Since we know the supplement is  

180 − a , we can plug that in.

180 - a = 3a

180  = 4 a  (add  a  to both sides)

45  =  a  (divide both sides by  4)

Since we know the angle now, all we have to do is multiply it times  3  to find the supplement.

45  ×  3  =  135

4 0
2 years ago
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