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Anon25 [30]
3 years ago
15

What is the solution for x in the equation?

Mathematics
1 answer:
navik [9.2K]3 years ago
3 0

Step-by-step explanation:

option C

hope it helps

thank you

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The American Academy of Periodontology released a survey, revealing that 27% of US adults admit they lie to their dentist about
Y_Kistochka [10]

Answer:

A: H0: p = 0.27; Ha: p > 0.27

Step-by-step explanation:

The parameter is the population proportion.

According to the survey conducted by the American Academy of Periodontology, the proportion of of US adults who admit they lie to their dentist about how often they floss their teeth is 27%.

This means the null hypothesis is :

H_0: p=0.27

Periodontist Dr. Garcia believes that the percentage seems low, so his claim is that the percentage should be more than 27%.

This means, the alternate hypothesis is

H_{a}:p \: > \: 0.27

Therefore the correct choice is A.

5 0
4 years ago
Which numbers are divisible by nine?<br> 107 513 944 126 802
gulaghasi [49]
<span>Which numbers are divisible by nine?
107 513 944 126 802

answer is 513
because 513/9 = 57</span>
5 0
3 years ago
Can someone explain HOW to simplify this algebraic fraction, as in tell me why and what I need to do for each step : 1-n/n^2-1
Andreyy89

- I’m assuming the expression implies the following:

(1-n)/(n^2 - 1)

The steps goes as follows:

= -(n-1)/(n^2-1) (factored a negative out)
= -(n-1)/[(n+1)(n-1)] (Factored denominator into a difference of squares, but don’t just blindly accept the fact, expand it and you should get the original denominator)

At this point, the (n-1) terms cancel, as you should know: a real number, besides 0, over itself is 1.

= -1/(n+1) , which is the answer

Note: You could also see it as 1/-(n+1) or 1/(-n-1)
8 0
2 years ago
The radius of a circle is 9.7 m. Find the circumference to the nearest tenth?(help its urgent)
yulyashka [42]

Answer:

Step-by-step explanation:

Circumference C=2πr  r=radius \pi =3.14

C=2(3.14)9.7

C=60.9

7 0
3 years ago
Raquel and her brother Marcus are huge sports fans. Combined they owe 15 sports jersey. Raquel owns double the amount of Marcus'
Ber [7]

2x + 3 + y = 15 Equation

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