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skad [1K]
3 years ago
8

I need a little help here please make it right :(

Mathematics
2 answers:
IRINA_888 [86]3 years ago
6 0

Answer:

-3 X 7= -21

Step-by-step explanation:

dem82 [27]3 years ago
6 0

Answer:

3x7 is one of them

Step-by-step explanation:

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A rectangle has a perimeter of 32 in. find the length and width of the rectangle under which the area is the largest. follow the
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Let width and length be x and y respectively.
Perimeter (32in) =2x+2y=> 16=x+y => y=16-x
Area, A = xy = x(16-x) = 16x-x^2
The function to maximize is area: A=16 x-x^2
For maximum area, the first derivative of A =0 => A'=16-2x =0
Solving for x: 16-2x=0 =>2x=16 => x=8 in
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5 0
3 years ago
Tracey has 29 students in her class. She has 21 boys in her class. What is the ratio of girls to boys in her class
Xelga [282]

First find the number of girls in her class.

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6 0
3 years ago
What is the product?<br> (2x - 1)(x+4)<br> 2²-4<br> 2x²+4<br> 2x^2+7x-4<br> 2x^2-7x-4
SVETLANKA909090 [29]
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Which is the ordered pair for y&gt;5x-2
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Answer:

5>6

Step-by-step explanation:

7 0
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