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Marysya12 [62]
3 years ago
9

Is x=-8 a solution of the equation 3(x+1)=3x+3

Mathematics
1 answer:
Kazeer [188]3 years ago
3 0

Answer:

It is true for all x.

Step-by-step explanation:

3(x + 1) = 3x + 3

3x + 3 = 3x + 3

3x = 3x + 3 - 3

3x = 3x

0 = 0

It is true for all x. It means that it can be any solution for x since they would result the same.

If you choose x = -8

3 (-8 + 1) = 3(-8) + 3

-24 + 3 = -24 + 3

-21 = -21

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45 units and is centered at
mariarad [96]

The correct question is:

A circle has a radius of 45 units and is centered at (-2.4, -4.8).

What is the equation of this circle?

Answer:

Equation of the circle is;

(x + 2.4)² + (y + 4.8)² = 2304

Step-by-step explanation:

The standard equation of a circle is;

(x - a)² + (y - b)²  =  r²

where;

(a,b) is the center of the circle and r is the radius of the circle

Now, from the question, the circle is centered at (-2.4, -4.8) and the radius is 45

Thus, plugging those values into the standard form of equation of a circle, we have;

(x - (-2.4))²  +  (y - (-4.8))²  = 48²

This gives;

(x + 2.4)² + (y + 4.8)² = 2304

3 0
3 years ago
A small cube with side length 6y is placed inside a larger cube with side length 4x^2. What is the difference in the volume of t
olasank [31]

Answer:

64x⁶ - 216y³

Step-by-step explanation:

The formula for the volume of a cube is  

Vol. = l³

For the large cube,  

V =(4x²)³

V = 64x⁶

For the small cube,  

v =(6y)³

v = 216y³

The difference in volume is

Diff. = 64x⁶ - 216y³

5 0
3 years ago
Read 2 more answers
A line passes through (3, 7) and (6, 9). Which equation best represents the line? (4 points)
Natalka [10]

Answer: i think is A or B

Step-by-step explanation:

y=\frac{2}{3} x+5

5 0
3 years ago
How can properties of operations be used to add expressions?
Gelneren [198K]
Use this. Hope it helps

7 0
2 years ago
A clydesdale drinkes about 120 gallons of water 4 days.At this rate about how much many gallons of water does a clydesdale drink
Margarita [4]
Gallons of water drank in 4 days = 120
Gallons of water drank in a day = 120/4
= 30
Gallons of water drank in 28 days = 30 × 28
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3 years ago
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