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earnstyle [38]
2 years ago
10

HELP HELP WILL MARK BRAINLIEST

Mathematics
1 answer:
SashulF [63]2 years ago
4 0

Answer:

b. 10a³ - 11a - 3

Step-by-step explanation:

1. Expand 3(a³ - 2a - 5)

= 3a³ - 6a - 15

2. Add 7a³ - 5a + 12 and 3a³ - 6a - 15

7a³ + 3a³ = 10a³

-5a + -6a = -11a

12 + -15 = -3

3. Answer: b. 10a³ - 11a - 3

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A circle has a radius of 6 m. what is the circumference of the circle
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Write the series using summation notation. 9 + 29 + 129 + …
Sveta_85 [38]

Step-by-step explanation:

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3 years ago
PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!
denis-greek [22]

Answer:  0.80

<u>Step-by-step explanation:</u>

P (2 ≤ x ≤ 4) is: P(X = 2) + P(X = 3) + P(X = 4)

                   =     0.36    +    0.12    +     0.32

                   =             0.48             +     0.32

                   =                            0.80

It can also be calculated as: 1 - P(X = 1)

                                           =  1 -  0.20

                                           =     0.80

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3 years ago
Read 2 more answers
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