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Anvisha [2.4K]
3 years ago
8

Which equation has the correct sign on the product?

Mathematics
1 answer:
Mila [183]3 years ago
3 0

Answer: a.

Would appreciate brainly <3

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what is the formula for slope? ALL i need is the formula and if u cant give it to me than dont answer it.
babunello [35]
Slope= y2-y1 / x2-x1
6 0
3 years ago
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A rectangles width is one fifth it's length and it's perimeter is 168m. Find the dimensions of the rectangle
gayaneshka [121]
I hope this helps you



width = 1/5 .length


length =5.width


Perimeter =2 (w+l)


168=2. (w+5w)


84=6w


w=14


l=5.14=70
7 0
3 years ago
SorryI forgot the screenshot the 1st time so here it is
Cerrena [4.2K]
The coefficient is -9
not 9.

Explanation:
The coefficient is whatever numbers come before a variable. And it’s the numbers actual value, not it’s absolute value. So the answer is -9

Hope this helps!
7 0
2 years ago
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4 The rate of compound interest is 7.5%. How long will it take for an investment of $4500 to
Allisa [31]
Here is the result.....

8 0
3 years ago
15. A rectangle has a length of 2x - 1 and a width of 3x + 7. Find the perimeter of this rectangle.
andrew11 [14]

Answer:

10x + 12 and 6x² + 11x - 7

Step-by-step explanation:

The perimeter (P) of a rectangle is calculated as

P = 2l + 2w ( l is length and w is width )

   = 2(2x - 1) + 2(3x + 7) ← distribute parenthesis

    = 4x - 2 + 6x + 14 ← collect like terms

     = 10x + 12

--------------------------------------------------

The area (A) of a rectangle is calculated as

A = lw

   = (2x - 1)(3x + 7) ← expand using FOIL

    = 6x² + 14x - 3x - 7 ← collect like terms

    = 6x² + 11x - 7

7 0
3 years ago
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