Can I please get help with this?

Mathematics

1 answer:

Andrei [34K]2 years ago

7 0

Answer: x = 20.

Step-by-step explanation:

x and (3x + 10) combine to form a right angle, shown in the diagram by the small square joining the perpendicular lines.

Right angles are 90 degrees, so you can add both angles to get 90:

$x + (3x + 10) = 90\\\\4x + 10 = 90\\\\4x = 80\\\\x = 20$

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Can anyone help me with this please!!? I’ll mark you brainliest!!

djverab [1.8K]

Answer:

each square is 5". the base is 4x4 squares- so 20 inches square. 20x20= 400sq inches.

the semicircle at the top is 20 inches in diameter, which makes the radius 10 inches.

pi× 10^2= 314.16.

duvide that by 2 to get a semicircle- 157.8

so, the total area is the 400+ 157.8, for a total area of 557.8 square inches

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2 years ago

Find the slope of the line that contains these points (-2,5) (-4,11)

nevsk [136]

The first thing you have to do is:

subtract: 11-5

Then subtract: -4-(-2)

then you put it as a fraction: 6/-2 or -3

That -3 would be considered the slope.

So now you have: y=-3x+ b

So what you have to do is plug in one of the points into the equation to find out what b is.

For example: 11 = -3(-4) + b
11=12 + b
-12 -12
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So the answer is: y = -3x -1

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2 years ago

Read 2 more answers

Value of x in figure shown below a.22 b.20 c.45 d.80

Fiesta28 [93]

Answer:

A - 22

Step-by-step explanation:

This is because when you add 90 and 68 you get 158. There are 180 degrees in a triangle so you do 180-158 to get 22.

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Write the equation of the line that passes through the point (-3, 6) and is parallel to the line

Ugo [173]

Answer:

$\because \:l_{1} \parallel \: l_{2} \\ \therefore m_{1} = m_{2} = \frac{1}{2} \\ \frac{y - 6}{x + 3} = \frac{1}{2} \\ y - 6 = \frac{1}{2}x + \frac{3}{2} \\ y = \frac{1}{2}x + \frac{3}{2} + 6\\ y = \frac{1}{2}x + \frac{15}{2}$