Whats the answer of 2x+23=49

2 answers:

7 0

Why did he delete my answer!!!!????

X= 5
-39 from both sides that leaves you with
2x=10
divide both sides by 2 which makes x=5

Anastaziya [24]2 years ago

5 0

X=13 is your answer 49-23= 26 divided by 2 is 13

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The shortest leg of a triangle is 1 feet shorter than the other leg.The hypotenuse of this triangle is 5 feet. what are the leng

givi [52]

Answer:

shortest: 3 ft
other: 4 ft

Step-by-step explanation:

The right triangle with hypotenuse 5 that has legs that differ by 1 is the 3-4-5 right triangle. The legs are 3 ft and 4 ft.

Alternate solution

If you have never heard of a 3-4-5 right triangle, you can figure the leg lengths algebraically using the Pythagorean theorem. Let x represent the length of the "other" leg. Then the shortest is (x-1). The Pythagorean theorem tells you ...

5^2 = (x)^2 +(x -1)^2

25 = 2x^2 -2x +1

12 = x^2 -x = x(x -1)

Factors of 12 that differ by 1 are 3 and 4 or -3 and -4. We want x to be positive, so the value of interest is x=4

The "other" leg is 4 ft; the shortest leg is 3 ft.

7 0

3 years ago

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eduard

You can find the area of the rectangle and the triangle separately and then add them together which would result in 330in. I personally do not think you should use the trapezoid formula even though they said it is a trapezoid (a trapezoid is usually not shaped like that) but if you want to it would result in 270in.