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3 years ago

What is ( -5p )( -2p ) =

Mathematics

2 answers:

antoniya [11.8K]3 years ago

5 0

Answer:

10p

Step-by-step explanation:

have a good day :)

lara [203]3 years ago

4 0

10p^2 is your answer

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Joe's water tower leaks 0.6 liters of water per day. How much water is lost over 12 dayspp

aksik [14]

Answer:

7.2 liters

Step-by-step explanation:

Multiply 12 by 0.6

6 0

3 years ago

Use the information given to answer the question.

lubasha [3.4K]

Answer:

Area is (x² - 9) units squared.

Step-by-step explanation:

• from difference of squares quadratic property:

${ \boxed{ \rm{(a - b)(a + b) = ( {a}^{2} - {b}^{2}) }}}$

→ a is x

→ b is 3

• Therefore:

${ \tt{area = {x}^{2} - {3}^{2} }} \\ \\ { \tt{area = {x}^{2} - 9 }}$

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3 years ago

What is the smallest two-digit prime that is the sum of three (not necessarily distinct) positive perfect cubes?

love history [14]

Answer:

$17$

Step-by-step explanation:

$1+8+8=17\\1^3+2^3+2^3=17$

6 0

4 years ago

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Insurance companies are interested in knowing the population percent of drivers who always buckle up before riding in a car. Whe

podryga [215]

Answer:

The value is $n = 384$

The correct option is a

Step-by-step explanation:

From the question we are told that

The margin of error is E = 0.05

From the question we are told the confidence level is 95% , hence the level of significance is

$\alpha = (100 - 95 ) \%$

=> $\alpha = 0.05$

Generally from the normal distribution table the critical value of is

$Z_{\frac{\alpha }{2} } = 1.96$

Generally since the sample proportion is not given we will assume it to be

$\^ p = 0.5$

Generally the sample size is mathematically represented as

$n = [\frac{Z_{\frac{\alpha }{2} }}{E} ]^2 * \^ p (1 - \^ p )$

=> $n = [\frac{ 1.96 }{0.05} ]^2 *0.5 (1 - 0.5)$

=> $n = 384$

Generally the margin of error is mathematically represented as

$E = Z_{\frac{\alpha }{2} } * \frac{\sigma }{\sqrt{n} }$

Generally if the level of confidence increases, the critical value of $\frac{\alpha }{2}$ increase and from the equation for margin of error we see the the critical value varies directly with the margin of error , hence the margin of error will increase also

So If the confidence level is increased, then the sample size would need to increase because a higher level of confidence increases the margin of error.

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3 years ago

A line passes through the point (4,7) and has a slope of -5/2.

pshichka [43]

Answer:

$y=-\frac{5}{2} x+17$

Step-by-step explanation:

3 0

3 years ago

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