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ivolga24 [154]
3 years ago
10

A number divided by 9 is it algebraic expression or is it an equation

Mathematics
2 answers:
wlad13 [49]3 years ago
4 0
Algebracic expression because an equation has an equal sign.
Paha777 [63]3 years ago
4 0

It would be algebraic expression because you don't know what the number bring divided is and you also don't know the quotient. The expression might look like x÷9

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3 0
3 years ago
Consider the following hypothesis test:
Scrat [10]

Answer:

z=\frac{27.4-26}{\frac{6}{\sqrt{40}}}=1.48  

The p value can be founded with the following probability:

p_v =P(z>1.476)=0.0694  

Step-by-step explanation:

Information given

\bar X=27.4 represent the sample mean  

\sigma=6 represent the population deviation

n=40 sample size  

\mu_o =26 represent the value to verify

z would represent the statistic

p_v represent the p value

System of hypothesis

We want to check if the true mean for this case is higher than 26, the system of hypothesis would be:  

Null hypothesis:\mu \leq 26  

Alternative hypothesis:\mu > 26  

The statistic is given by:

z=\frac{\bar X-\mu_o}{\frac{\sigma}{\sqrt{n}}} (1)  

Replacing the info we got:

z=\frac{27.4-26}{\frac{6}{\sqrt{40}}}=1.48  

The p value can be founded with the following probability:

p_v =P(z>1.476)=0.0694  

5 0
4 years ago
2. Classify a triangle with the following side lengths 26, 12, and 18. *
Nadya [2.5K]

Answer:

Acute

Step-by-step explanation:

26^2 + 12^2 = 18^2

676 + 144 = 324

820 = 324

Since 324 is smaller, this triangle is acute

7 0
3 years ago
Read 2 more answers
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