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Ivanshal [37]
2 years ago
11

I really don't understand i need help asap. They were asking to find f(-8)

Mathematics
1 answer:
Rudik [331]2 years ago
6 0

Answer:

i dont get it either

Step-by-step explanation:

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The width of a rectangle is the length minus 2 units. the area of the rectangle is 35 units
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Answer:

Length=7units\\\\Width=5units

Step-by-step explanation:

Width=(Length-2) units

W=(L-2) units

Area of the rectangle= 35 square units

Area = length* Width

35= L*(L-2)\\\\35=L^2-2L

Subtracting 35 both sides:

L^2-2L-35=0

Solving the quadratic equation for 'L' ;

Using factorization:

L^2+5L-7L-35=0

Taking common from the equation :

L(L+5)-7(L+5)=0\\\\(L+5)(L-7)=0\\\\L+5=0\\\\L=-5

OR

L-7=0\\\\L=7

The length cannot be negative, therefore Length(L)= 7

Width=Length-2\\\\=7-2\\\\=5 units

Length=7units\\\\Width=5units

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3 years ago
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Answer:

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3 years ago
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Gnoma [55]
8 out of 24 = 1 out of 3

5 out of 20 = 1 out of 4

1/3 is larger that 1/4
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How do you explain mental math to multiple two numbers
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When multiplying two numbers, a person can mentally add one of those numbers the other number amount of times.
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For which equations below is x = –3 a possible solution? Check all that apply.
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3 years ago
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