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3 years ago

HELP MATH!!

Mathematics

1 answer:

Alex787 [66]3 years ago

5 0

The answer would be A.6t.It would be a because c and d are adding not multiplying and b has 7 instead of 6.

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Linda found that the cost to get a swimming pool installed in her backyard is a linear function of the pool's area. A swimming p

joja [24]

Answer:

$35,000

Step-by-step explanation:

if $50,000 is to install an area of 1,000 square feet swimming pool and $35,000 can be used to install an 800 square foot swimming pool I think the best graph model is 800 square feet for $35,000 for a cost cut of $15,000 is a good bargain

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3 years ago

The amounts of nicotine in a certain brand of cigarette are normally distributed with a mean of 0.917 g and a standard deviation

Nutka1998 [239]

Answer:

$z = \frac{0.872-0.917}{\frac{0.303}{\sqrt{37}}}= -0.903$

And we can find this probability to find the answer:

$P(z$

And using the normal standar table or excel we got:

$P(z$

Step-by-step explanation:

Let X the random variable that represent the amounts of nocatine of a population, and for this case we know the distribution for X is given by:

$X \sim N(0.917,0.303)$

Where $\mu=0.917$ and $\sigma=0.303$

We have the following info from a sample of n =37:

$\bar X= 0.872$ the sample mean

And we want to find the following probability:

$P(\bar X \leq 0.872)$

And we can use the z score formula given by;

$z=\frac{x-\mu}{\frac{\sigma}{\sqrt{n}}}$

And if we find the z score for the value of 0.872 we got:

$z = \frac{0.872-0.917}{\frac{0.303}{\sqrt{37}}}= -0.903$

And we can find this probability to find the answer:

$P(z$

And using the normal standar table or excel we got:

$P(z$

6 0

3 years ago

What is 442.1 × 11 =

Marta_Voda [28]

Answer: 4,863.1

Step-by-step explanation:

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3 years ago

4(5x – 6y) + 16x<br> I don’t know how do this problem

Ivenika [448]

Answer:

simplify =36x−24y

factor =12(3x−2y)

Step-by-step explanation:

Let's simplify step-by-step.

4(5x−6y)+16x

Factor 4(5x−6y)+16x

36x−24y

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3 years ago

Charlotte finds two landscape gardeners online: the first charges a fixed fee of $20 per job plus $15 per hour for labor, while

Damm [24]

$15 per hour for labor plus $5 per hour for labor

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4 years ago

Read 2 more answers