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3 years ago

The volume of a cylinder with a height of 25cm and a radius of 20cm

Mathematics

1 answer:

pentagon [3]3 years ago

7 0

Answer:

5652 cm³

Step-by-step explanation:

V = 2πr² + 2πrh

= (2 × 3.14 × 3.14 × 20 ×20) + (2 × 3.14 × 20 × 25)

= 2512 + 3140

= 5652 cm³

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Please I really need help on these two

oksian1 [2.3K]

Answer:

1) 5

2) (3 , 24)

Step-by-step explanation:

Question 1

f(x) x= 1 2 * 5¹ = 10

f(x) x= 2 2 * 5² = 50

f(x) x= 3 2 * 5³ = 250

multiplicative rate of change = 50/10 = 5

check: 250/50 = 5

Question 2

f(x) = 2 * 4ˣ

(3 , 24) f(3) = 2 * 4³ = 2 * 64 = 128 ≠ 24

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3 years ago

If F(x)=2x^2+3, then which of the following represent f(x+1). A.2x^2+2. B. X^2+3. C. 2x^2+4x+1. D. 2x^2+4x+5

serg [7]

Hi,
If it is f(x)=2x²+3 and not F(x)=2x²+3 then
Answer D.

$f(x)=2x^2+3\\

f(x+1)=2(x+1)^2+3\\
=2(x^2+2x+1)+3\\
=2x^2+4x+5\\
$

5 0

3 years ago

Somebody’s please help me with this it’s due tomorrow and I don’t have any idea how to do it

svet-max [94.6K]

Answer:

1) They will stop 10 times for a break

2) A baker can make 10 cakes

3) Tammy will distrubute 36 bags with 2 1/2 pounds of candy

Step-by-step explanation:

Let me know if you have any questions !

Hope it helps

3 0

2 years ago

Rita's family is moving to Grand Junction to Dallas. The moving van averages 60 miles each hour. About how many hours does the v

Eddi Din [679]

Answer:

16 hours and 20 minutes.

Step-by-step explanation:

Please consider the complete question.

Rita's family is moving to Grand Junction to Dallas, which is 980 miles. The moving van averages 60 miles each hour. About how many hours does the van take to reach Dallas?

To find the time taken by van to reach Dallas, we will divide total distance by speed.

$\text{Time}=\frac{\text{Distance}}{\text{Speed}}$

$\text{Time taken to reach Dallas}=\frac{980\text{ Miles}}{60\frac{\text{ Miles}}{\text{Hour}}}$

$\text{Time taken to reach Dallas}=\frac{980\text{ Miles}}{60}\times \frac{\text{ Hour}}{\text{Miles}}$

$\text{Time taken to reach Dallas}=\frac{98}{6}\text{ Hour}$

$\text{Time taken to reach Dallas}=16.3333\text{ Hour}$

Let us convert 0.3333 hours into minutes by multiplying 0.3333 by 60.

$0.3333\times 60=19.998\approx 20$

Therefore, it will take 16 hours and 20 minutes for the van to reach Dallas.

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2 years ago

-9h - 15 = 93<br> What is the answer to this?

Svetlanka [38]

-9h = 93 + 15

-9h = 108

h =-12

3 0

2 years ago

Read 2 more answers