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3 years ago

The water pipe has a radius of 5cm and a height of 7cm. What volume of water does it take to fill the pipe?

Mathematics

2 answers:

Stella [2.4K]3 years ago

6 0

Answer:

Step-by-step explanation:

the pipe is a cylinder

volume of cylinder = $\pi$ r^2h

here,

$\pi$ = 22/7

r = 5cm

h = 7cm

∴ volume = 22/7 × 5^2 × 7

= 22/7 × 25 × 7

= 550 cm^3

hope this helps

plz mark it as brainliest!!!!!!

Georgia [21]3 years ago

4 0

Answer:

A≈376.99

Step-by-step explanation:

A=2πrh+2πr2=2·π·5·7+2·π·52≈376.99112

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Evaluate the expression(-3.8)+0+y for the given values of y.

11111nata11111 [884]

Answer:

y = -3.3 then -7.1

y = -7.1 then -10.9

y = -2.6 then -6.4

y = 1 then -2.8

y = 4.2 then 0.4

Step-by-step explanation:

(-3.8)+0+y can be simplified to -3.8 + y. Evaluate each value for y by substituting it into the expression and solving.

y = -3.3 then -3.8 + -3.3 = -7.1

y = -7.1 then -3.8 + -7.1 = -10.9

y = -2.6 then -3.8 + -2.6 = -6.4

y = 1 then -3.8 + 1 = -2.8

y = 4.2 then -3.8 + 4.2 = 0.4

7 0

3 years ago

Find the solution set of each inequality below and then determine which inequalities have the same solution set as 1/3(-5x-3) &l

mario62 [17]

1/3(-5x - 3) < 14

-5/3 x - 1 < 14

-5/3 x < 15

-5 x < 45

-x < 9

x > 9

5 0

4 years ago

PLEASE HELP MEEE IM SO STRESSED!

Lana71 [14]

Answer:

(a) -2-(-9)=-2+9

(b) -2-9=-11

6 0

3 years ago

Each T-shirt sells for $8, and each long-sleeve shirt sells for $11. The swim team collected $310 for the 35 shirts that were so

Nonamiya [84]

Answer:

Number of T shirt sold = 25

Number of long-sleeve shirt sold = 10

Option A is the correct answer.

Step-by-step explanation:

Let the number of T shirt be t and long-sleeve shirt be s.

We have cost of T shirt = 8$ and cost of long-sleeve shirt = 11 $.

Total number of shirts sold = 35

t + s = 35 -----------------------Equation 1

Dollar collected = 310 by selling 35 shirts = 310 $

8 t + 11 s = 310 -----------------------Equation 2

Equation 1 x 8

8 t + 8 s = 8 x 35 = 280 -----------------------Equation 3

Equation 2 - Equation 3

8 t + 11 s - 8 t - 8 s = 310 - 280 = 30

3 s = 30

s = 10

Substituting in equation 1

t + 10 = 35

t = 25

Equations are 8t + 11s = 310 and t + s = 35

Number of T shirt sold = 25

Number of long-sleeve shirt sold = 10

Option A is the correct answer.

4 0

3 years ago

Suppose that a company selects two people who work independently inspecting two-by-four timbers. Their job is to identify low-qu

Stella [2.4K]

Answer:

Step-by-step explanation:

Given

Probability that an inspector doe not identify low-quality timber=0.20

(a)Probability that both inspector do not identify a low quality timber

$P=0.2\times 0.2=0.04$

(b)Let n be the no of inspector

Probability should be less than 1%=0.01

so $\left ( 0.2\right )^n$

Taking $\ln$ both sides

$x>\frac{\ln 0.01}{\ln 0.2}$

x>2.861

thus minimum value of x is 3

(c)From part b it is clear that minimum 3 officer are required to to keep the low quality timber below 1%

on an average 2 officer are not sufficient to identify 4 low quality timber out of 100

6 0

3 years ago