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Gennadij [26K]
4 years ago
6

Solve for x: 4(x + 2) = 3(x - 2) -2 -4 -10 -14

Mathematics
1 answer:
Yuliya22 [10]4 years ago
7 0

Answer:

x=-14

Step-by-step explanation:

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Class records at rockwood college indicate that a student selected at random has probability 0.75 of passing french 101. for the
Kipish [7]

To get the probability of two individual events both occurring, you have to multiply the probabilities of their individual events occurring. Therefore in this problem, the probability that a student selected at random will pass both French 101 and French 102 is 0.683 (.75 x .91). The answer is already rounded to three decimal places.

4 0
4 years ago
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Solve the system of equation?<br>2x - 4y = 10<br>7x - y = 12​
allsm [11]

Answer:

x = 1.153846153846154

y = -1.923076923076923

Step-by-step explanation:

Multiply 7x - y = 12 by -4 and then add it to 2x - 4y = 10

       2x - 4y = 10

+(-4( 7x - y = 12))

     -26x = -30

     \frac{-26x}{-26} = \frac{-30}{-26}

    x = 1.153846153846154

Then plug in x to get y.

  2(1.153846153846154) - 4y = 10

      2.307692307692308 - 4y = 10

     -2.307692307692308          -2.307692307692308

                 -4y = 7.692307692307692

                 \frac{-4y}{-4} = \frac{7.692307692307692}{-4}

                 y = -1.923076923076923

5 0
4 years ago
The roof of a grain silo is in the shape of a cone. The inside radius is 20 feet, and the roof is 10 feet tall. Below the cone i
nirvana33 [79]

Answer:

41887.90 cubic feet

Step-by-step explanation:

We need to find the volume of the silo.

We simply need to find the volume of the cylindrical part and the conical part and add them together.

The body of the silo is a cylinder with height of 30 ft and radius of 20 ft and the roof is a cone with height 10 ft and radius 20 ft.

The volume of a cylinder is given as:

V = \pi r^2h

The volume of a cone is given as:

V = \frac{1}{3} \pi r^2H

where r = radius of cylinder and cone

h = height of cylinder

H = height of cone

Adding them together, we have that the volume of the silo is:

V = \pi r^2h + \frac{1}{3} \pi r^2H

V = \pi r^2 (h + \frac{1}{3}H)\\ \\V = \pi * 20^2 (30 + [\frac{1}{3}* 10]) \\\\V = 1256.64 ( 30 + 3.33)\\\\V = 1256.64(33.33)\\\\V = 41887.90 ft^3

The volume of the silo is 41887.90 cubic feet.

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3 years ago
Pls. Help me answer #3.
Akimi4 [234]
The answer is y=1/2x
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Every morning Jim runs for 30 minutes if Jim runs for 8 miles per hour how far does he travel
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Jimmy would travel 4 miles per hour.

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