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3 years ago

Find the value of x that makes the equation true:x + 3 = 4

Mathematics

1 answer:

Zolol [24]3 years ago

6 0

Answer:

x = 1

Step-by-step explanation:

Subtract 3 from both sides

x+ 3 - 3 = 4 - 3

gives x=1

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Which three side lengths could make a triangle?

Tpy6a [65]

Answer:

9cm 5cm 12cm

Step-by-step explanation:

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2 years ago

Find the volume of a cylinder with a diameter of 10 inches and a height of 20 inches. Use 3.14 for π.

Snowcat [4.5K]

Lets find the volume of a cylinder with a diameter D=10 inches and lenght L= 20 inches. First we need to notice that the diameter is twice the size of the radius: D=2r. Then we write the equation for the volume of the cylinder. it is the base times the height: V=pi*r^2 * L. Now we input the nubmers in the equation: V=3.14*(D/2)^2 * L where r=D/2=5 inches and after calculating we get: V=1570 inches^3

6 0

2 years ago

Read 2 more answers

(GRAPH BELOW)

Rainbow [258]

Answer:

The tap drains approximately half the water from the tank in 15 minutes

The tank initially has 50 gallons of water

Step-by-step explanation:

The tap drains approximately half the water from the tank in 15 minutes. True.

This is true because see that the point (15,25) lies on the graph of the line.

Which means after 15 minutes the amount of water left in the tank is 25 gallons and 25 is half of 50.

The tap drains exactly one gallon from the tank every minute. False

This is false because the slope of the graph is $m=\frac{50-25}{0-15}=-\frac{5}{3}$

The tank initially has 30 gallons of water. False.

The y-intercept is the initial gallons of water which is 50.

The tank initially has 50 gallons of water. True.

The y-intercept is the initial gallons of water which is 50.

The tank takes 50 minutes to drain completely. False.

It is false because the x-intercept tells us the tank is drained completely and it is not 50 minutes but rather 30 minutes.

4 0

3 years ago

Find the slope of the line that passes through points (2,8) and (1,3)

nataly862011 [7]

Answer:

Slope is m = 5

Step-by-step explanation:

8 0

3 years ago

How Do you graph 2x+8y=-32

Neporo4naja [7]

First, subtract 2x from both sides of the equation to get 8y = -2x - 32. Then, divide the equation by 8, to get y = -x/4 - 4. Your y-intercept will be -4, and it's slope will be -1/4.

5 0

2 years ago