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Paha777 [63]
2 years ago
14

Given the equation 8+ 9x = 89 Is x=9 a solution to the equation?

Mathematics
1 answer:
tamaranim1 [39]2 years ago
8 0

Answer:

X=9

Step-by-step explanation:

That is correct, 8 + 9(9) = 89

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SHOW YOUR WORK!!! Marking best answer as brainliest :))
Wewaii [24]

Answer:

-25

Step-by-step explanation:

You must first pick two points.  I picked the points of (4, 400) and (8, 300).  You can pick different points and still get the right answer.

Subtract the y's and the x's.  Divide the difference of y by the difference of x.

400 - 300 = 100

4 - 8 = -4

100/-4 = -25

The slope, or rate of change, is -25.

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3 years ago
How many combinations are possible if you select one flavor of ice cream and one
Sonja [21]

Answer:

9

Step-by-step explanation:

3 0
3 years ago
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A sphere has a diameter of 14 ft. Which equation finds the volume of the sphere?
aev [14]

Answer:

The volume of the sphere is 1436 in³

The equation is    

V = ⁴⁄₃ * 3.14 * (7ft)³

Step-by-step explanation:

radius = half of diameter

d = 14ft

r = 14ft / 2 = 7ft

To calculate the volume of a sphere we have to use the following formula:

V = volume

r = radius  = 7ft

π = 3.14

V = ⁴⁄₃πr³

we replace with the known values

V = ⁴⁄₃ * 3.14 * (7ft)³

V = 4.187 * 343 in³

V = 1436 in³

The volume of the sphere is 1436 in³

6 0
3 years ago
Y = x/3 - 4<br> Change this equation into y=mx+b form
dusya [7]
Y=3x+4 beacause the slope is m and b is the y-intercept
5 0
2 years ago
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What is the simplified polynomial and the value
Elanso [62]

The simplified polynomial is; xy(x²y - xy² +1) and; the value when x=-3 and y=2 is; -186

From the polynomial given;

  • x²yxy -xy²xy +xy.

The polynomial can be factorised to yield a simpler form as follows;

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This is so because, xy is a common factor.

The value is therefore;

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  • -6(18+12+1)

= -186

Read more on polynomials;

brainly.com/question/2833285

7 0
2 years ago
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