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aleksklad [387]

3 years ago

11

The scatter plot The scatter plot shows the relationship between the amount of gasoline g, in gallons, in a fuel tank and the di

stance traveled d, in miles, after filling the tank.

1 answer:

Alexxx [7]3 years ago

4 0

Answer:

D

Step-by-step explanation:

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Please show me how to solve for Xsquared - 21.75X = -15.75. I have the solution but do not know how to solve it.

Andreas93 [3]

$x^2-21.75x=-15.75 \\
x^2-21.75x+15.75=0$

Use the quadratic formula:
$x^2-21.75x+15.75=0 \\ \\
a=1 \\ b=-21.75 \\ c=15.75 \\ b^2-4ac=(-21.75)^2-4 \times 1 \times 15.75=473.0625-63=410.0625 \\ \\
x=\frac{-b \pm \sqrt{b^2-4ac}}{2a}=\frac{-(-21.75) \pm \sqrt{410.0625}}{2 \times 1}=\frac{21.75 \pm 20.25}{2} \\
x=\frac{21.75-20.25}{2} \ \lor \ x=\frac{21.75+20.25}{2} \\
x=\frac{1.5}{2} \ \lor \ x=\frac{42}{2} \\
x=\frac{15}{20} \ \lor \ x=21 \\
x=\frac{3}{4} \ \lor \ x=21 \\
\boxed{x=\frac{3}{4} \hbox{ or } x=21}$

3 0

3 years ago

Which number line correctly shows -3-1.5?

Papessa [141]

Pretty sure it’s the 3rd

7 0

4 years ago

Read 2 more answers

What is 7.849+0.09? can you help me find the answer?

zmey [24]

Answer:7.939

Step-by-step explanation:

5 0

3 years ago

Julie has 50$ which is eight dollars more than twice what john has. How much does john have

nydimaria [60]

Answer:

John has $21.

Step-by-step explanation:

Let John's "wealth" be w. Then 2w+8 = 50, or 2w = 42, or w = 21.

John has $21. Eight more than twice this is 42+8 = 50, as expected.

3 0

3 years ago

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To solve this system using the addition method, you would need to multiply the first equation by what number in order for the y'

yanalaym [24]

You multiply 3x - y = 3.
So then it's:
6x - 2y = 3
-2x + 2y =6

which equals 4x = 9

8 0

4 years ago