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3 years ago

1

Mathematics

1 answer:

mezya [45]3 years ago

5 0

The answer is 4.2 !!!!

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1 6 points Solve for x: 3x - 2 = x + 8 (Engin+bon.

gizmo_the_mogwai [7]

Answer:

x = 5

Step-by-step explanation:

3x - 2 = x + 8

Subtract x from each side

3x-x - 2 = x-x + 8

2x -2 = 8

Add 2 to each side

2x-2+2 = 8+2

2x = 10

Divide each side by 2

2x/2 =10/2

x = 5

8 0

3 years ago

Read 2 more answers

Help me I need help I need help

Licemer1 [7]

Answer:

$\Huge\boxed{131.88}$

Step-by-step explanation:

Hello There!

First thing we want to do is find the formula for circumference of a circle

C = 2(3.14)r

where r = radius

we are given the diameter so we have to convert that into radius to do so we just divide by 2

42/2=21 so the radius equals 21 inches

now we just plug in 21 for r in the formula

$C = 2(3.14)21\\2*3.14=6.28\\6.28*21=131.88\\C=131.88$

So we can conclude that the circumference of the circle is 131.88 inches

3 0

2 years ago

(1.3)Select the correct definition from the dropdown below: (In picture)

masha68 [24]

Answer:

a plane is formed by two rays with the same end point

5 0

3 years ago

Jessica wants to make a ramp using a board so that she can ride her bike onto the front porch. The ramp must reach from the grou

dmitriy555 [2]

Answer:

well if its 212 feet above the ground and cant incline more tjan 35 degrees it would be 46169?

Step-by-step explanation:

5 0

3 years ago

In the figure below, AB=AE, AC=AD and AP is perpendicular to BE. Prove that BC=DE.

NISA [10]

Step-by-step explanation:

1) In the figure, as AB is equal to AE, ABE is an equilateral triangle.

As AP is perpendicular to BE

=> AP is the height of the triangle ABE.

In an equilateral triangle, the median and the height is the same, so that AP is also the median of the triangle.

=> P is the midpoint of BE

=> PE = PB

2) In the figure, as AC = AD, so that ACD is an equilateral triangle.

As AP is perpendicular to BE, so that it is perpendicular to CD as well

=> AP is the height of the triangle ACD

In an equilateral triangle, the median and the height is the same, so that AP is also the median of the triangle ACD.

=> P is the midpoint of CD

=> PC = PD

We have:

+) PB = PE

+) PC = PD

=> PB - PC = PE - PD => BC = DE

5 0

3 years ago