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Ronch [10]
3 years ago
5

Simplify the expression below. 3x^2 - 5x^2 + 4x^2 (Please explain how you get the answer)

Mathematics
1 answer:
Talja [164]3 years ago
4 0

Answer:

The answer is -4x^2

Step-by-step explanation:

-3x^2 - 5x^2 + 4x^2

= -3x^2 + -5x^2 + 4x^2

Combine like terms:

-3x^2 + -5x^2 + 4x^2

(-3x^2 + -5x^2 + 4x^2)

= -4x^2

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What is the equation of a circle with center (-4,7) radius 3?
miv72 [106K]

Answer:

a. (x + 4)² + (y – 7)² = 3²

Step-by-step explanation:

General equation for a circle is:

(x – h)² + (y – k)² = r²

h and k are the center (h, k), and r is the radius.

They want a center of (-4, 7) so h=-4 and k=7

They want a radius of 3 so r=3

plug it into the equation.

(x – h)² + (y – k)² = r²

(x – (-4))² + (y – (7))² = (3)²

(x + 4)² + (y – 7)² = 3²

7 0
3 years ago
Read 2 more answers
Graph the solution to the inequality 2x-3y<18
frutty [35]

<, > - dotted line

≤, ≥ - solid line

2x-3y\dfrac{2}{3}x-6\\\\y=\dfrac{2}{3}x-6-\text{It's a linear function}\\\\for\ x=0\to y=\dfrac{2}{3}(0)-6=0-6=-6\to(0;\ -6)\\\\for\ x=6\to y=\dfrac{2}{3}(6)-6=2(2)-6=4-6=-2\to(6;\ -2)

6 0
3 years ago
The graph of f(x)=√x Is shifted four units up and five units to the right. What is the equation of the resulting graph?
RoseWind [281]

A vertical shift adds/subtracts a constant to/from every y-coordinate while leaving the x-coordinate unchanged. A horizontal shift adds/subtracts a constant to/from every x-coordinate while leaving the y-coordinate unchanged. Vertical and horizontal shifts can be combined into one expression.

Shifting up or to the right means add

Shifting down or to the left means subtract

the 3rd option is the correct one

7 0
2 years ago
Please answer the question!!?
Ksenya-84 [330]
The answer is b your just subtract all the ya lol
3 0
3 years ago
39-(15z+48)/27=35 what is z
Hatshy [7]
39-(15z+48)/27=35 39-35=(15z+48)/27 4=(15z+48)/27 108=15z+48 108-48=15z 60=15z z=60/15 z=4
7 0
3 years ago
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