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Yuliya22 [10]
3 years ago
11

Can y’all help me with number 2

Mathematics
2 answers:
Lilit [14]3 years ago
5 0
False
true
false
false
Mark brainliest please
Andre45 [30]3 years ago
5 0
Answer for question 2 is D
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The height of a triangular window is 3 feet less than its base. The area the window is 20 ft.? find the dimensions of the window
Ivenika [448]

Let us assume base of the window = b feet.

Height is 3 feet less than base, that is = (b-3).

Given area of the triangle = 20 feet square.

We know formula for area of a triangle:

Area = \frac{1}{2} × Base × Height

Plugging values in formula, we get

20 = \frac{1}{2} b \times (b-3)

\mathrm{Multiply\:both\:sides\:by\:}2

40=b\left(b-3\right)

40=b^2-3b

b^2-3b-40=0

Factoring quadratic, we get

\left(b+5\right)\left(b-8\right)=0

b+5=0

b=-5

b-8=0

b=8.

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<h3>Therefore, base of the triangle = 8 feet and height = 8 -3 = 5 feet.</h3>
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2 years ago
What percentage of 128 is 96?
katrin [286]
So, since 100% = 128, x should equal 96, and we are trying to find x.
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(100/x) * x = (128/96) * x
Cancel out the x's on the left side so
100 = 1.333(x)
75 = x
96 is 75% of 128
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https://www.symbolab.com/solver/simplify-calculator/simplify%203%5Csqrt%7B7%7D%20-%205%5Csqrt%7B7%7D

thats the answer kid

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Answer: The predicate of a sentence is made up of the verb and any words related to it.

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−3y−4x=−11 3y−5x=−61 ​
natulia [17]

\left \{ {{-3y-4x=-11} \atop {3y-5x=-61}} \right. \\-9x=-72\\x=8\\3y-5*8=-61\\3y=-21\\y=-7\\\\(8;-7)

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