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GREYUIT [131]
3 years ago
13

A train is accelerating at a rate of 2.0 km/hr squared. If it’s initial velocity is 20 km/hr, what is its velocity after 30 seco

nds?
Mathematics
1 answer:
tangare [24]3 years ago
4 0

Answer: 30

Step-by-step explanation:

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Container A and container B are right circular cylinders. A has a radius of 4 inches and a height of 5 inches while container B
Bess [88]

Answer:

8 in

Step-by-step explanation:

RA = 4 in, RB = 2 in

oil height in A = hA = 2 in

Find oil height in B = hB

volume of oil in A = VA = π*RA² * hA

equal amount means volume of oil in B VB = VA

But VB = π*RB² * hB

so π*RA² * hA = π*RB² * hB

then

hB = hA *(RA/RB)² = 2 * (4/2)² = 8 in

7 0
2 years ago
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A number has the same digit in its hundreds place and its hundredths place.
Yuki888 [10]

Answer:

One is 2 0's before the decimal point (100) and the other is 2 decimal places AFTER the decimal point (0.01)

Essentially, the question is asking us how many times do we multiply 0.01 to get 100? This will be how many times greater 100 is compared to 0.01

Lets move the decimal point  4 times to the right:

0.01

00.1

1.0

10.0

100.0

Step-by-step explanation:

7 0
3 years ago
X:y=5:3 and x+y=56<br> work out he value of x-y
Alex

Answer:14

Step-by-step explanation:

x+y=56

x:y=5:3

Sum of ratio=5+3

Sum of ratio=8

x=5/8x56

x=(5x56) ➗ 8

x=280 ➗ 8

x=35

y=3/8x56

y=(3x56) ➗ 8

y=168 ➗ 8

y=21

x-y

35-21=14

x-y=14

3 0
3 years ago
Read 2 more answers
SOMEONE PLEASE HELP ME QUICK WILL GIVE BRAINLIEST
Wittaler [7]

Answer:

IT would be B I believe

Step-by-step explanation:

f(x) = 3x + 391

4 0
3 years ago
How do you solve (X-9)(X+11)
soldi70 [24.7K]
FOIL
x^2+11x-9x-99
x^2+2x-99
5 0
3 years ago
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