4 years ago

Please help, 40 points!

Mathematics

1 answer:

Pachacha [2.7K]4 years ago

3 0

The answer to the question is C

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4 years ago

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deff fn [24]

Answer:

Its 3.3

Step-by-step explanation:

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3 years ago

What is the value of y in the parallelogram shown below?

lord [1]

Consecutive angles = 180
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100 + 35 + y = 180
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4 years ago

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Triangles A and B have vertical heights x cm and (x+3) cm respectively. The areas of Triangles A and B are 30cm² and 32cm² respe

PolarNik [594]

Answer:

Hi,

Step-by-step explanation:

Let say a the base of the triangle A and b the base of the triangle B.

$a)\\\left\{\begin{array}{ccc}\dfrac{a*x}{2}&=&30\\\dfrac{b*(x+3)}{2}&=&32\\b=a-4\\\end{arraqy}\right.\\\\(i): a=\dfrac{60}{x}\\\\(ii): b=\dfrac{64}{x+3}\\\\b)\\\dfrac{64}{x+3}=\dfrac{60}{x}-4\\\\64x=(60-4x)*(x+3)\\\\4x^2+16x-180=0\\\\x^2+4x-45=0\\\\\Delta=16+4*45=196=14^2\\x=\dfrac{-4+14}{2}=5\ or\ x=\dfrac{-4-14}{2}=-9\ (impossible)\\So\ x=5,\ a=\dfrac{60}{5}=12, b=\dfrac{64}{5+3}=8\\\\Area\ of\ A=12*5/2=30\\Area\ of\ B=8*8/2=32\\\\Height\ of\ triangle\ B=x+3=5+3=8.\\$

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2 years ago

Write an equation in POINT-SLOPE FORM of the line that has an x-intercept of -3 and a y-intercept of -2. hurryyy if u dont know

Finger [1]

Answer:

y=1/2-3-2

Step-by-step explanation:

y-int is -2

x int is -3

6 0

3 years ago