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DanielleElmas [232]
3 years ago
13

Choose the correct simplification of (5x3 − 5x − 8) + (2x3 + 4x + 2).

Mathematics
2 answers:
irinina [24]3 years ago
7 0
5x^3 - 5x - 8 + 2x^3 + 4x + 2 

7x^3 - x - 6 (some like terms)
Inessa [10]3 years ago
5 0

Answer:

The simplified form of the given expression is 7x^3-x-6.

Step-by-step explanation:

The given expression is

(5x^3-5x-8)+(2x^3+4x+2)

5x^3-5x-8+2x^3+4x+2

Combine like terms,

(5x^3+2x^3)+(-5x+4x)+(-8+2)

7x^3+(-x)+(-6)

7x^3-x-6

Therefore the simplified form of the given expression is 7x^3-x-6.

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The average score of this quiz is 24 points with a standard deviation of 1.5 points. What is the probability that someone scored
navik [9.2K]

Answer:

8.08 %

Step-by-step explanation:

Let us denote : X= score X follows a normal distribution with mean =24 and standard deviation =1.5

Step 2

The probability that someone scored 21.9 or less is :

\mathrm{P}(\mathrm{X} \leq 21.9)

=\mathrm{P}\left(\mathrm{Z} \leq \frac{21.9-24}{1.5}\right)

=\mathrm{P}(\mathrm{Z} \leq-1.4)

=0.0808

=8.08%

Answer : 8.08 %

7 0
3 years ago
HELPP!! PLEASE ITS DUE SOON
Debora [2.8K]

Answer:

100%

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
PLEASE HELP ME I CANT FAIL THIS CLASS
ale4655 [162]

Answer:

It would be the first answer.

Step-by-step explanation:

y=-2x^2+4x-2

y=-2(-1)^2+4(-1)-2

y=-2(1)-4-2

y=-2-4-2

y=-6-2

y=-8

(-1,-8)

-Hope this helps!-

-Please mark as brainliest!-

-Good luck!-

4 0
3 years ago
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solong [7]

Answer:

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Step-by-step explanation:

3 0
2 years ago
Which graph shows the solution set for Negative 4.4 greater-than-or-equal-to 1.6 x minus 3.6?
____ [38]

Answer:

A number line going from negative 7 to negative 1. A closed circle is at negative 5. Everything to the right of the circle is shaded.

Step-by-step explanation:

-4.4 ≥ 1.6 x - 3.6

Solving for the value of x,

1.6 x ≤ -4.4 + 3.6

 1.6 x ≤ - 0.8

Dividing 1.6 from both sides to know value of x

x ≤ - 0.5

8 0
3 years ago
Read 2 more answers
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