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FinnZ [79.3K]
3 years ago
8

Item 9 a family pays $45 each month for cable television. the cost increases 7%.

Mathematics
1 answer:
makvit [3.9K]3 years ago
5 0

A. 45 x 0.07 = 3.15 increase

B. 45 + 3.15 = 48.15 new monthly cost

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Solve for x.<br><br> 6⁢x + 15 = 2
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Find the zeros of the function and state their multiplicities. y=x^4-8x^2+16
Volgvan
   
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7 0
3 years ago
The width of the rectangle is 5x-4. The length of the rectangle is 5
drek231 [11]

Answer:

The area of the rectangle A =  25x² -  20x

Step-by-step explanation:

Given

The width of the rectangle = w = 5x - 4

The length of a rectangle = l = 5x

To determine

The area of the rectangle = ?

Using the Formula to determine the area of the rectangle

A = wl

substitute w = 5x - 4 and l = 5x in the formula

A = (5x-4) (5x)

Apply distributive law:  a(b-c) = ab - ac

   =\left(5x\right)\cdot \:5x-\left(5x\right)\cdot \:4

   =5x\left(5x\right)-4\left(5x\right)

as 5x(5x) = 25x²  and  4(5x) = 20x, so

    =25x^2-20x

Therefore, the area of the rectangle A =  25x² -  20x

3 0
3 years ago
The length of a rectangle is 8 centimeters less than its width. What are the dimensions of the rectangle if its area is 240 squa
Dmitriy789 [7]
Answer:
Well, Your best answer will be is 35.
Here's a Explain.
W-5=0
W=5 That's for the width.
L=3*5-8
L=15-8=7 And, That's for the length.
Here's proof.
35=7*5
35=35
Hope That Helps!~
6 0
3 years ago
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