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velikii [3]
3 years ago
10

Subtract: What is 20 - (-3) ?

Mathematics
1 answer:
MAVERICK [17]3 years ago
4 0

Answer: 23

Step-by-step explanation: a P e X

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A gas storage tank is in the shape of a right circular cylinder that has a radius of the base of 2ft and a height of 3ft. The fa
bogdanovich [222]

Answer:

Yes, the farmer have enough paint to complete the​ job.

Step-by-step explanation:

It is given that a gas storage tank is in the shape of a right circular cylinder.

The radius of the base is 2 ft and the height of cylinder is 3 ft.

The total surface area of a cylinder is

S=2\pi rh+2\pi r^2

Total surface area of gas storage tank is

S=2\pi (2)(3)+2\pi (2)^2

S=12\pi+8\pi

S=20\pi

S=62.8318530718

S\approx 62.83

The total surface area of gas storage tank is 62.83 square feet.

The farmer has 1 gallon of paint and 1 gallon of paint will cover 162 square​ feet.

Since 62.83<162, therefore 1 gallon of paint is enough to paint the gas storage.

Hence the required statement is Yes, the farmer have enough paint to complete the​ job.

3 0
3 years ago
Which expression is equivalent to 6r - 10 + 3r – 2?
EastWind [94]

Answer: There are no choices so unfortunately I can't give you an answer

Step -by-step explanation:

5 0
3 years ago
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14. The sum of the digits of a certain two-digit number is 4. When you reverse its digits you decrease the number by 18. What is
kipiarov [429]

Step-by-step explanation:

If the tens digit of the number is X and the ones digit is Y then the number is equal to 10*X + Y

If you reverse the digits then the number is equal to 10*Y + X

If reversing the digits decreases the number by 36 then

10*Y + X = 10*X + Y - 36

The sum of the digits is 4 so X + Y = 4 ==> X = 4 - Y

Substitute this value of X into the 1st equation

10*Y + (4 - Y) = 10*(4 - Y) + Y - 36

9*Y + 4 = 40 - 9*Y - 36

18*Y = 0

Y = 0

I hope it helps you

So X = 4 - 0 = 4 and the number is 40

so, let's check 40 - 04 = 36

5 0
3 years ago
Rewrite the expression as an equivalent power with a negative exponent.<br> a. 1/49<br> b. 27/125
Hunter-Best [27]
\dfrac{1}{49}=\left(\dfrac{1}{7}\right)^2=7^{-2}\\&#10;\dfrac{27}{125}=\left(\dfrac{3}{5}\right)^3=\left(\dfrac{5}{3}\right)^{-3}
3 0
4 years ago
Solve for c:<br><br><br><br> c + (-20) = -12
alexira [117]

Answer:

8

Step-by-step explanation:

Isolate and solve for C

c + (-20) = -12\\c - 20 = -12\\c = -12+20\\c = 8

6 0
3 years ago
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