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3 years ago

11

(3x²+4x-1)+(-2x²-3x+2)

2 answers:

antiseptic1488 [7]3 years ago

4 0

The answer is: 3x^2 +x-3

Troyanec [42]3 years ago

3 0

Answer:

x

Step-by-step explanation:

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Answer:

x + 10

Step-by-step explanation:

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4 years ago

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3 years ago

What is the value of the expression below? (9^2) ^1/4

Gennadij [26K]

Answer:

3

Step-by-step explanation:

1. Note that $9=3^2.$

2. Use property $(a^m)^n=a^{m\cdot n},$ then

$9^2=(3^2)^2=3^{2\cdot 2}=3^4.$

3. Use the same property, thus

$(9^2)^{\frac{1}{4}}=(3^4)^{\frac{1}{4}}=3^{4\cdot \frac{1}{4}}=3^1=3.$

6 0

4 years ago

Read 2 more answers

Have to find the side length of x for the following right triangle?<br>

nasty-shy [4]

Answer:

x = 9

Step-by-step explanation:

<h3> Pythagorean theorem:</h3>

$\sf (leg_1)^2 + (leg_2)^2 = hypotenuse^2$

$x^{2} + 12^2 = 15^2\\\\x^{2} + 144 = 225$

x² = 225 - 144

x² = 81

x² = 9²

x = 9

$\boxed{x = 9}$

8 0

3 years ago