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2 years ago

PLEASE HELP I WILL MARK YOU BRAINLIEST!!!!

Mathematics

2 answers:

Mrac [35]2 years ago

7 0

Answer:

the answer is C.

Step-by-step explanation:

taurus [48]2 years ago

4 0

Answer:

0.099, or 9.9%

Step-by-step explanation:

She has a 70% chance to have a heart attack, therefore, she has a 30% chance that she will not.

The accuracy of the test is 67%, which means, which means there is a 33% of a false diagnosis.

The chance of both events occurring is 0.3 * 0.33, which is 0.099.

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A space telescope on a mountaintop is housed inside of a cylindrical building with a hemispheric dome. If the circumference of t

Vlad1618 [11]

Answer:

$185553.7\text{ feet}^3$

Step-by-step explanation:

GIVEN: A space telescope on a mountaintop is housed inside of a cylindrical building with a hemispheric dome. If the circumference of the dome is $84\text{ feet}$ , and the total height of the building up to the top of the dome is $91\text{ feet}$ .

TO FIND: what is the approximate total volume of the building.

SOLUTION:

let the height of the mountaintop be $h\text{ feet}$

As the dome hemispherical.

circumference of a hemisphere $=\frac{1}{2}\times2\pi\times radius$

$=\pi\times radius$

$\frac{22}{7}\times radius=84$

$radius=26.75\text{ feet}$

total height of the building up to the top of the dome $=\text{radius of hemisphere}+\text{height of mountaintop}$

$=26.75+h=91$

$h=64.25\text{ feet}$

Volume of building $=\text{volume of cylindrical mountaintop}+\text{volume of dome}$

$=\pi(radius)^2h+\frac{2}{3}\pi(radius)^3$

as radius of mountain top is same as dome

putting values

$=3.14(26.75)^264.75+\frac{2}{3}3.14(26.75)^3$

$=145484.6+40069.1$

$185553.7\text{ feet}^3$

Hence the total volume of the building is $185553.7\text{ feet}^3$

5 0

3 years ago

A company makes video games. The price of a video game is modeled by the function p(x) = 30x + 2, where x is the number of years

atroni [7]

The answer is option C "multiplication." You have the function p(x) = 30x + 2 and x equals the number of years since the company started producing games which has this equation also s(x) = 500x + 250 in order to find the revenue from their video games the company should use the multiplication on the polynomials.

Hope this helps!

4 0

3 years ago

Read 2 more answers

The mean of 2.7, 3.6 and 1.8

kolezko [41]

Set them up from least to greatest..
The mean is the average of all the data so..
The answer is 2.7

8 0

3 years ago

Only 4 more left........................

Luden [163]

Answer: