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3 years ago

7

A 5-gallon can of paint will cover 240 square feet.

1 answer:

Likurg_2 [28]3 years ago

4 0

240/5 is equal to 48, 1 gallon is equal to 48 feet, 400/48 is 8.33 so you would need 9 gallons to cover 400 feet

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What is the value of the discriminant for the quadratic equation 0 = x + 2 + x2?

Kobotan [32]

The discriminant of a quadratic expression $ax^2+bx+c$ , where a in not 0, is the expression
$D=b^2-4ac$ .

Thus, we compare $x^2+x+2$ to $ax^2+bx+c$ and see that

a=1, b=1, c=2.

Substituting these values in   $D=b^2-4ac$ , we have:

    $D=(1)^2-4\cdot1\cdot2=1-8=-7$ .

Answer: -7

5 0

3 years ago

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What does the equation -9+|m-8|<0 equal to?

UNO [17]

The equation $-9+|m-8|$ equals to $-1 < m < 17$

Step-by-step explanation:

We need to solve the equation:

$-9+|m-8|$

Solving:

Adding 9 on both sides

$-9+9+|m-8|$

Applying absolute rule: |u| < a and a > 0 then, -a < u < a

So, $-9 < m-8 < 9$

Now we have,

m-8>-9 and m-8 <9

m>-9+8 and m <9+8

m>-1 and m<17

Combining the intervals:

-1 < m < 17

So the equation $-9+|m-8|$ equals to $-1 < m < 17$

Keywords: Inequality, Absolute rule

Learn more about inequality at:

#learnwithBrainly

7 0

3 years ago

YES PLEASE PEOPLE OF THE INTERNET HELP ME WITH GEOMETRY PLS

jeka94

I believe they are all false.

8 0

3 years ago

Which of the following mapping diagrams does not represent a function?

shtirl [24]

The answer is C. the reson is because a function have to have a input that have only one output.

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3 years ago

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Solve for x<br> <img src="https://tex.z-dn.net/?f=%5Cfrac%7Bx%7D%7B2%7D" id="TexFormula1" title="\frac{x}{2}" alt="\frac{x}{2}"

g100num [7]

Answer:

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I hope this helps!

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3 years ago

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