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3 years ago

I need help ASAP. Thank you (:

Mathematics

1 answer:

Anarel [89]3 years ago

3 0

Answer: volume = 1282.2 ft³

Step-by-step explanation:

The composite figure consists of a cone and a cylinder. The volume of the composite figure is

Volume of cylinder + volume of cone.

The formula for determining the volume of a cylinder is expressed as

Volume = πr²h

Where

r represents the radius of the cylinder.

h represents the height of the cylinder.

π is a constant whose value is 3.14

From the information given,

Radius = 7 ft

Height = 6 ft

Volume = 3.14 × 7² × 6 = 923.16ft³

The formula for determining the volume of a cone is expressed as

Volume = 1/3πr²h

From the information given,

Radius = 7 ft

Height = 7ft

Volume = 1/3 × 3.14 × 7² × 7 = 359ft³

Volume of composite solid =

923.16 + 359 = 1282.2 ft³

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19 is 25% of what number?

zepelin [54]

Answer:

19/25 * 100 = 76%

Step-by-step explanation:

3 0

3 years ago

HELP PLEASE THANKS!!!!!

STALIN [3.7K]

Multiply 11 yards by 7 yeards and you will get ur answrr

4 0

2 years ago

Last month maria purchased a new cell phone for $500. the store manager told her that her cell phone would depreciate by 70% eve

Aleksandr-060686 [28]

We have been given that last month Maria purchased a new cell phone for $500. The store manager told her that her cell phone would depreciate by 70% every 6 months.

We know that an exponential function is in form $y=a\cdot (1-r)^x$ , where,

y = Final value,

a = Initial value,

r = Decay rate in decimal form,

x = Time in years.

Let us convert $70\%$ into decimal form.

$70\%=\frac{70}{100}=0.70$

Initial value of car is 500, so $a=500$ .

Since value of phone depreciates every months, so value of phone will depreciate twice in a year.

Upon substituting our given values in exponential decay function, we will get:

$V=500(1-0.70)^{2x}$

To find the value of phone after 2 years, we will substitute $x=2$ in our equation.

$V=500(1-0.70)^{2(\cdot 2)}$

$V=500(1-0.70)^{4}$

Therefore, option D is the correct choice.

Let us simplify our equation.

$V=500(0.30)^{4}$

Therefore, option B is correct as well.

5 0

3 years ago

Can some one help me out with this answer 1/2 x 3/4

ad-work [718]

Here is your answer

$\huge\frac{3}{8}$

EXPLANATION

$\frac{1}{2} \times \frac{3}{4}$

Here, we multiply numerator of one fraction to the numerator of the other fraction and similarly the denominators of both fractions are multiplied.

$\frac{1 \times 3}{2 \times 4}$

$\frac{3}{8}$

HOPE IT IS USEFUL

6 0

3 years ago

Yeah i need help please

Lelu [443]

It should be 8 if I’m not mistaken

6 0

3 years ago