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n200080 [17]
3 years ago
13

A rectangular prism has a length of 11 centimeters, a width of 9 centimeters, and a height of 3 centimeters. What is the cubic c

entimeters equal?
Mathematics
2 answers:
vesna_86 [32]3 years ago
8 0
11 x 9 x 3 = 297
so the volume is 297cm³
egoroff_w [7]3 years ago
5 0

Answer: 297 cubic centimeters

Step-by-step explanation:

Given:  The length of the  rectangular prism = 11 centimeters

The width of the  rectangular prism= 9 centimeters

The height of  rectangular prism = 3 centimeters

We know that the volume of rectangular prism is given by :-

\text{Volume}=length*width*height\\\\\Rightarraow\ \text{Volume}=11\times9\times3\\\\\Rightarraow\ \text{Volume}=297\text{ cubic centimeters}

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An educator claims that the average salary of substitute teachers in school districts is less than $60 per day. A random sample
valentina_108 [34]

Answer:

t=\frac{58.875-60}{\frac{5.083}{\sqrt{8}}}=-0.626    

The degrees of freedom are given by:

df=n-1=8-1=7  

The p value would be given by:

p_v =P(t_{(7)}  

Since the p value is higher than 0.1 we have enough evidence to FAIl to reject the null hypothesis and we can't conclude that the true mean is less than 60

Step-by-step explanation:

Information given

60, 56, 60, 55, 70, 55, 60, and 55.

We can calculate the mean and deviation with these formulas:

\bar X= \frac{\sum_{i=1}^n X_i}{n}

s=\sqrt{\frac{\sum_{i=1}^n (X_i -\bar X)^2}{n-1}}

Replacing we got:

\bar X=58.875 represent the mean

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n=8 sample size  

\mu_o =60 represent the value that we want to test

\alpha=0.1 represent the significance level

t would represent the statistic

p_v represent the p value

Hypothesis to test

We want to test if the true mean is less than 60, the system of hypothesis would be:  

Null hypothesis:\mu \geq 60  

Alternative hypothesis:\mu < 60  

The statistic would be given by:

t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}}  (1)  

Replacing the info we got:

t=\frac{58.875-60}{\frac{5.083}{\sqrt{8}}}=-0.626    

The degrees of freedom are given by:

df=n-1=8-1=7  

The p value would be given by:

p_v =P(t_{(7)}  

Since the p value is higher than 0.1 we have enough evidence to FAIl to reject the null hypothesis and we can't conclude that the true mean is less than 60

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3 years ago
Help would be appreciated ( Grade 4 homework )
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Answer:

 (B)  4

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Considering the first two columns, we know that 83 +78 = 161, so there must be a carry of 1 into the third column. That makes it have the sum ...

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