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2 years ago

Find the suface area of the regular pyrimid 15, 12, r 7.5

Mathematics

1 answer:

Pani-rosa [81]2 years ago

3 0

The area is 5 cm^2 of the pyramid

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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

Which point is an x-intercept Og the quadratic function f(x) = (x-4)(x+2)?

user100 [1]

<span>(-6,0) would be correct </span>

8 0

2 years ago

Read 2 more answers

Identify the scale factor <br> Photograph: height 3 in. <br> Painting: height 24 in.

Finger [1]

Answer:

Step-by-step explanation:

The new height is 24

The original height is 3

24/3 is 8

The scale factor is 8

6 0

3 years ago

3× at x = 2 evaluate the following

Nat2105 [25]

Answer:

the answer is 6.

Step-by-step explanation:

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2 years ago

Scott took out a 72 month loan for $35,000 to purchase a new boat. If Scott paid $8,925 in simple interest, what was the interes

diamong [38]

Answer:

Option 4.7% = 3,500 x 4.7% =$164.50 simple annual interest.

82.25 this is what Scott will pay in 6 months at simple interest.

Option 4.2% =3,500 x (1 +0.042/12)^6 =3,500 x 1.0035^6=$3,574.15.

3,500 =$74.15 this is what Scott will pay in 6 months at compounded interest.

The compound option is cheaper by: 74.15 =$8.10.

6 0

2 years ago

Read 2 more answers