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gavmur [86]
3 years ago
5

Somebody please help!!!

Mathematics
1 answer:
Mama L [17]3 years ago
8 0
(3x^2+9x-6) - (2x^3-4x^2+6x-4)
Short Answer
2x^3+7x^2+3x-2

Step by Step
1.)2x^3 doesn’t subtract from anything because there are no other trinomials

2.)3x^2 - (-)4x^2 = 7x^2 because a double negative cancels out and you end up adding them

3.)9x-6x=3x

4.)-6 - (-)4 = -2 because double negatives cancel out into addition
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The Rodriguez Family is starting to save 15% of their income per month for college savings for their children. They earn $8,540
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Answer:

1,281

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3 years ago
How is an equation like a balance scale!?! please make the response short and easy to understand !!
Sauron [17]
You have to equal out each side to fine the value of the variable.

hope this helped!!!
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2. -6 < -3; Divide both sides by -3
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8 0
3 years ago
Which fractions are equivalent to 15/20
Digiron [165]

Answer:

\frac{3}{4}, \frac{30}{40}, \frac{45}{60}, \frac{60}{80}....e.t.c are all equivalent fractions

Step-by-step explanation:

For the answer you need to know bout equivalent fractions

TO find equivalent fractions you have to multiply the numerator and denominator by the same amount

E.x.\frac{15}{20}=\frac{(15)(2)}{(20)(2)} =\frac{30}{40}

Therefore \frac{30}{40} is an equivalent fraction

8 0
3 years ago
If the length of the hypotenuse of a right triangle is 39 millimeters and the length of one leg is 15 millimeters what is the le
Genrish500 [490]

Answer:

36 millimeters

Step-by-step explanation:

From Pythagoras theorem, the square of the hypotenuse is equal to the sum of the square of the two other legs

In mathematical terms;

a^2 = b^2 + c^2

Let a represent the hypotenuse = 39 mm and the length of one leg, say c, is 15 mm

Slotting in the values of a and b

39^2 = b^2 + 15^2

1521 = b^2 + 225

collect like terms

1521 - 225 = b^2

1296 = b^2

Take the square root of both sides

36 = b

Therefore b = 36 mm

6 0
3 years ago
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