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3 years ago

I need help please?!!!!):

Mathematics

2 answers:

notsponge [240]3 years ago

4 0

Answer:

k=38

Step-by-step explanation:

add 22 to itself to cancel it out and add it to the 16 as well and you will get k

PilotLPTM [1.2K]3 years ago

4 0

Answer: -6 because 16 substracted by negative 20 is negative 6

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Find the area of the trapezoid.

vekshin1

Answer:

Step-by-step explanation:

7 - 5 = 2

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triangle = 2(3) / 2

triangle = 3

rect = bh

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2 years ago

Consider the two shown below Are the two triangles congruent

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Answer:

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Step-by-step explanation:

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3 years ago

Jillian is trying to save water, so she reduces the size of her square grass lawn by 8 feet on each side the area of the smaller

horsena [70]

Answer: 20 feet by 20 feet.

Step-by-step explanation:

1. You know that $x$ is the original measure of one side. Since it is a square, all its sides are equal.

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$(a-b)^{2}=a^{2}-2ab+b^{2}$

- Then, you obtain the following quadratic equation:

$(x-8)^{2} =144\\x^{2}-2(x)(8)+8^{2}=144\\x^{2}-16x-80=0$

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$x=\frac{-b+/-\sqrt{b^{2}-4ac}}{2a}\\a=1\\b=-16\\c=-80$

- Then, you obtain:

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