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3 years ago

Help.........................................................

Mathematics

1 answer:

Andreas93 [3]3 years ago

8 0

Answer:

C and D have the same slope of 1

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Determine the volume of a rectangular prism if

Alexeev081 [22]

Answer:

80 inches cubed

Step-by-step explanation:

V=bh

b= 5 x4 h=4

5 x 4 x 4 = 80

3 0

3 years ago

If B is between C and D, BC = 10 in., and BD = 3 in., then CD = ________.

Oksanka [162]

if B is between C and D, BC= 10 in., and BD=3 in., then CD =2AD

7 0

3 years ago

Read 2 more answers

4 kg of smell fresh washing powder costs 19 Pounds.

NeX [460]

Answer:

71.25 pounds

Step-by-step explanation:

I'd put it all in a ratio first

So it would look something like this :

WP : P

4. : 19

1. : 4. 75. ( I just divided them both by 4 so wp is 1)

15. : 71. 25. ( I multiplied them by 15 )

3 0

3 years ago

What is the easiest way remember quadratics equations?

Citrus2011 [14]

Answer:

First step may be by understanding the formulas.

5 0

4 years ago

A survey of 350 students is selected randomly on a large campus. They are asked if they use a laptop in class to take notes. Sup

Sindrei [870]

Answer:

A. The value of the sample proportion is 0.4

B. The standard error of the sample proportion is 0.02619

C. 0.3487 ≤ p ≤ 0.4513

Step-by-step explanation:

The value of the sample proportion p' is calculated as:

$p'=\frac{x}{n} = \frac{140}{350}=0.4$

Where x is the number of success in the sample or the number of students that use a laptop in class to take notes and n is the size of the sample or 350 students.

On the other hand, the standard error SE of the sample proportion is calculated as:

$SEs=\sqrt{\frac{p'(1-p')}{n}}$

so, replacing the values, we get:

$SE=\sqrt{\frac{0.4(1-0.4)}{350}}=0.02619$

Finally, an approximate 95% confidence interval for the true proportion p is calculate as:

$p'-z_{\alpha/2} SEs \leq p\leq p'+z_{\alpha/2} SEs$

Where 1-α is equal to 95%, so $z_{\alpha/2}$ is equal to 1.96. Then, replacing the values we get:

$0.4-1.96(0.02619) \leq p\leq 0.4+1.96(0.02619)$

0.4 - 0.0513 ≤ p ≤ 0.4 + 0.0513

0.3487 ≤ p ≤ 0.4513

5 0

4 years ago