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otez555 [7]
3 years ago
5

SOMEONE PLS HELP/ What is the value of x?

Mathematics
1 answer:
Serhud [2]3 years ago
3 0
These are similar triangles so you can use a proportion:
\frac{8}{x + 4} =  \frac{12}{2x + 1}

Cross multiply:
8(2x + 1) = 12 (x + 4)
16x + 8 = 12x + 48
       4x  = 40
         x = 10

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Which of the following could be the side lengths of a right triangle
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The lengths of a right triangle's three sides can be expressed as 24, 32, and 40.

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If leg an is absent, change the equation to its form when leg an is present on one side and compute the square root: a = (c2 - b2).

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7 0
1 year ago
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mestny [16]

Answer:

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6 0
2 years ago
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MariettaO [177]

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7 0
3 years ago
HELPPPPPPPP 7TH GRADE
egoroff_w [7]

Answer: 1 gallon

Step-by-step explanation:

Hi there!

Using the equation (12*18)-(7*3), where 12*18 is the area of the wall, 7*3 is the area of the door not being painted, you are left with 196 square ft. of wall. further dividing 196/200 is 0.98, meaning that Mr. Smith will only need one gallon of paint for his wall.

[(12*18)-(7*3)]/200

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6 0
2 years ago
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vova2212 [387]
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7 0
3 years ago
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