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3 years ago

12

Graph the line with Slope 8 and y-intercept -7

1 answer:

Tema [17]3 years ago

4 0

Answer:

Step-by-step explanation:

on the y- axis go down to -7 and mark a point. Then since your slope is 8, from that point go up 8 units and over to the right one and graph your other point. draw a line.

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Ten times the square of a non‐zero number is equal to seventy times the number. What is the number?

Nikolay [14]

The original number is 7 i think.
10(x^2) = 70x
10x^2 - 70x = 0
x^2 -7x =0
Δ= b^2 -4ac
where c doesnt exist=0
Δ= 49
-b ± √Δ /2a
7 ± √49 /2
7±7/2
x is either 14/2= 7
or 1/2, which doesnt work.

Lets see:
10(7^2) = 70•7
10•49 = 490
and that is right.

i hope my logic is correct.

5 0

3 years ago

Please help !!<br> Solve for x:<br><br> -2<br> -2/3<br> -3/2<br> -3

Kryger [21]

Answer:

x = $\frac{3}{2}$

Step-by-step explanation:

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18x = 9 × 3 = 27 ( divide both sides by 18 )

x = $\frac{27}{18}$ = $\frac{3}{2}$

8 0

3 years ago

Find the value of x that makes this equation true, just write a number for your answer. Use / for writing fractions

Tcecarenko [31]

Answer:

1/15

Step-by-step explanation:

The first thing to do is to change both denominators so that they're the same. In this case, that would be 15.

Then, whatever you do to the denominator, you must also do to the numerator.

$\frac{9}{15}$ + x = $\frac{10}{15}$

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6 0

3 years ago

Read 2 more answers

ellen had 25 hair clips,7 of them were blue and the rest are purple.what percent of hair clips were purple

strojnjashka [21]

Answer=72%

25-7=18purple clips

18 x
____=____
25 100

cross multiply
25x=1800
divide both sides by 25
x=72%

6 0

3 years ago

Read 2 more answers

A jar contains 100 ounces of lemonade. A spout at the bottom of the jar is opened and the lemonade pours out at a rate of 10 oun

emmasim [6.3K]

Answer:

100 ounces(hope it help)

Step-by-step explanation:

because there is only 100 ounces in the jar.

4 0

3 years ago