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3 years ago

Write your answer using positive exponents only. (-2x^2)^4

Mathematics

1 answer:

Luda [366]3 years ago

7 0

(-2x^2)^4
(-2x * -2x)^4
(4x)^4
(4x * 4x * 4x * 4x)
(256x)

I hope this is what you are looking for.

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Solve x2 + 6x + 7 = 0. (2 points)

Alexandra [31]

Option C: $$x=-3 \pm\sqrt{2}$

Solution:

Given equation is $x^{2}+6 x+7=0$ .

This is a quadratic equation.

Here a = 1, b = 6, c = 7

To solve the given equation by quadratic formula,

$$x=\frac{-b \pm \sqrt{b^{2}-4 a c}}{2 a}$

Substitute the given values in the quadratic formula, we get

$$x=\frac{-6 \pm \sqrt{6^{2}-4 (1) (7)}}{2 (1)}$

$$x=\frac{-6 \pm \sqrt{36-28}}{2 }$

$$x=\frac{-6 \pm \sqrt{8}}{2 }$

$$x=\frac{-6 \pm2 \sqrt{2}}{2 }$

$$x=\frac{2(-3 \pm\sqrt{2})}{2 }$

2 in the numerator and denominator are cancelled.

$$x=-3 \pm\sqrt{2}$

Option C is the correct answer.

8 0

3 years ago

|8m| = 104 absolute value

DENIUS [597]

Answer:

m=13

Step-by-step explanation:

l8ml=104

8m=104

⁻⁻⁻ ⁻⁻⁻

8 8

m=13

6 0

4 years ago

a shopper paid $2.52 for 4.5 pounds of potatoes, $7.75 for 2.5 pounds of broccoli, and $2.45 for 2.5 pounds of pears. what is th

Serggg [28]

Answer:

Divide the price by the amount of kgs

Unit price` $ per pound.

1 pound Potato = 2.52/4.5 = 0.56$

1 pound broccoli = 7.75/2.5 = 3.1$

1 pound pear = 2.45/2.5 = 0.98$

7 0

3 years ago

Read 2 more answers

You need to create a 4-character password that consists of four English letters and/or digits if repetition is allowed. How ma

Nataly_w [17]

123a
123q
123w
123e
123r
123t
123y
123u
123i
123o
123p
123s
123d
123f
123g
123h
123j
123k

I thought this would be easy lol, I tried, sorry for not getting an answer

3 0

4 years ago

The options are 135 feet, 45 feet, 25 feet, and 110 feet

aleksley [76]

Answer:45 feet

Step-by-step explanation:I believe this answer makes the most sense

5 0

3 years ago

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