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3 years ago

HELP ASAP WILL GIVE BRAINLIEST!!!!!

Mathematics

1 answer:

djyliett [7]3 years ago

5 0

0.32. Because you need to find the area, as size 8*8/2 then divide by 100 to get the decimal.I hope this helps.

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Explain why any number that is divisible by 9 is also divisible by 3.

slamgirl [31]

Since 3 x 3 = 9, 9 is divisible by 3. So, 3 would be a factor of any number divisible by 9

6 0

3 years ago

Graph: f(x) = (1/4)x

amid [387]

Answer: The initial value of a function is its value when equals zero. This is the same as the -intercept. We can see from the graph that our line crosses the -axis at the point zero, eight. Therefore, the initial value is eight.

Step-by-step explanation:

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1 year ago

The daily revenues of a cafe near the university are approximately normally distributed. The owner recently collected a random s

lbvjy [14]

Answer:

The sample size to obtain the desired margin of error is 160.

Step-by-step explanation:

The Margin of Error is given as

$MOE=z_{crit}\times\dfrac{\sigma}{\sqrt{n}}$

Rearranging this equation in terms of n gives

$n=\left[z_{crit}\times \dfrac{\sigma}{M}\right]^2$

Now the Margin of Error is reduced by 2 so the new M_2 is given as M/2 so the value of n_2 is calculated as

$n_2=\left[z_{crit}\times \dfrac{\sigma}{M_2}\right]^2\\n_2=\left[z_{crit}\times \dfrac{\sigma}{M/2}\right]^2\\n_2=\left[z_{crit}\times \dfrac{2\sigma}{M}\right]^2\\n_2=2^2\left[z_{crit}\times \dfrac{\sigma}{M}\right]^2\\n_2=4\left[z_{crit}\times \dfrac{\sigma}{M}\right]^2\\n_2=4n$

As n is given as 40 so the new sample size is given as

$n_2=4n\\n_2=4*40\\n_2=160$

So the sample size to obtain the desired margin of error is 160.

4 0

3 years ago

Which of these ordered pairs is a solution for this linear inequality 3y-2x<=6? A. (-4,2) B. (1,3) C. (2,-4) D. (2,4)

Usimov [2.4K]

Answer:

Step-by-step explanation:

3y-2x<=6

3(-4) - 2(2)<=6

-12-4<=6

-16<=6

4 0

3 years ago

BRAINLIEST

IrinaVladis [17]

Answer:

We know that a negative value is positive of all even exponents and negative for all odd exponents.

y=(-1)^x

5 0

2 years ago