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2 years ago

Find the area of the polygon with E(-3,2), F(1,5), G(5,-1), H(1,-5).

Mathematics

1 answer:

kykrilka [37]2 years ago

6 0

Answer:

Step-by-step explanation:

-3 2

-15 - 2 = -17

1 5

-1 - 25 = -26

5 -1

-25 - (-1) = - 24

1 -5

2 - 15 = -13

-3 2

area = |-17 - 26 - 24 - 13|/2 = |-80|/2 = 80/2 = 40

Answer: 40

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The area of a circle is 28.26 square meters. What is the circle's diameter?

ikadub [295]

Answer: area for circle is πr² so πr² =28.26 and we can sub 3.14 as pi

3.14*r²=28.26 we can divide by 3.14 to get r² on it's own

r²=28.26/3.14

then we root both sides to get r on it's own

28.26/3.14=9 √9=3

and the diameter is double the radius 3*2=6 so the diameter is 6

Step-by-step explanation:

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2 years ago

87 times 422 divided by 4

Lynna [10]

Answer:

9178.5

Step-by-step explanation:

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From Left to Right, you multiply 87 x 422, which is 36,714

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3 years ago

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3 years ago

What are the solutions for x when y is equal to 0 in the following quadratic

lawyer [7]

Answer:

D) x = -12 or x = 2

Step-by-step explanation:

The given quadratic equation is:

$y=x^2+10x-24$

When y=0, we obtain:

$x^2+10x-24=0$

We split the middle term with -2, 12 because their product is is -24 and their sum is 10.

$x^2-2x+12x-24=0$

We factor by grouping to obtain:

$x(x-2)+12(x-2)=0$

$(x-2)(x+12)=0$

Either $(x-2)=0$ or $(x+12)=0$

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3 years ago

Which is the solution to the equation: 1/3 (9x+2)=4+2/3 (6x+4)

Ne4ueva [31]

Answer:

The answer is x= -6 !

Step-by-step explanation:

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2 years ago