3 years ago

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

You might be interested in

Solve for x.<br><br> 6⁢x + 15 = 2

Vladimir [108]

Answer:

-2.167

Step-by-step explanation:

6X = 2-15

6X = -13

X= -13 / 6

4 0

3 years ago

Read 2 more answers

Match each value to the correct expression.

ipn [44]

Answer:

1. 27

2. 27

3. 15

Step-by-step explanation:

3 0

3 years ago

Find the zeros of the function and state their multiplicities. y=x^4-8x^2+16

Volgvan

$y=0\\\\ 
x^4-8x^2+16 = 0\\\\
(x^2)^2 - 2\cdot 4 \cdot x^2 + 4^2 = 0\\\\
(x^2 - 4)^2 = 0\\\\
(x^2 - 4)(x^2 - 4)=0\\\\
(x-2)(x+2) (x-2)(x+2) = 0\\\\
(x-2)(x-2) (x+2)(x+2) = 0\\\\
\Longrightarrow~~~ x_1 = 2;~x_2 = 2;~ x_3= -2;~x_4 = -2\\\\
\text{Conclusion:}\\\\
x_1 = x_2 = 2~~~ \text{double root}\\\\
x_3 = x_4 = -2~~~ \text{double root}\\\\
$

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

Read 2 more answers