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ki77a [65]
3 years ago
10

How do I simplify 7(3x + 9=

Mathematics
2 answers:
sdas [7]3 years ago
8 0
7(3x + 9) =

Distribute the 7 to the 3x and 9

21x + 63
sweet [91]3 years ago
3 0

Answer: 21x +63

Step-by-step explanation:

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A ramp leads up to a building. The top of the ramp is 5 feet above the ground, and the bottom is 15 feet from the building as sh
kirill [66]
To answer this you have to use Pythagoras's theorem: a^2 + b^2 = c^2

Put in the values:
5^2 + 15^2 = c^2

Simplify it:
25 + 225 = c^2

Simplify again:
250 = c^2

Square root both sides:
15.8113883008 = c

So the ramp is:
15.8113883008 feet

Now round the number: 
15.8ft

The above is the answer :)
(btw sorry in advance if you've spotted a mistake)
8 0
3 years ago
Two dice are rolled at the same time, what is the likelihood that both dice added together will be greater than or equal to four
topjm [15]
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3 years ago
Halla el área de un triángulo equilátero de 54 cm de perímetros
adoni [48]

Answer:

Area of equilateral triangle = 81√3 cm²

Step-by-step explanation:

Given:

Perimeter of an equilateral triangle = 54 cm

Find:

Area of equilateral triangle

Computation:

Perimeter of an equilateral triangle = 3 x Side

54 = 3 x Side

Side of equilateral triangle = 54 / 3

Side of equilateral triangle = 18 cm

Area of equilateral triangle = [√3/4]side²

Area of equilateral triangle = [√3/4][18]²

Area of equilateral triangle = [√3/4][324]

Area of equilateral triangle = [√3][81]

Area of equilateral triangle = 81√3 cm²

5 0
3 years ago
Use the modle to find 2x137
Lena [83]
the answer is 2• 137= 274
3 0
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Volume of cone is 2200ft
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