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Olegator [25]
3 years ago
12

Simplify the expression. (4a- 80 - 4a2) + (7a3 - 7 - 6a)

Mathematics
1 answer:
allsm [11]3 years ago
3 0

Answer:

the answer should be 7a^3-4a^2-2a-87

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Of the 12 people attending a lecture, 2 have brown eyes. What is the probability that a randomly selected person will have brown
MrRissso [65]

Answer:

1/6

Step-by-step explanation:

Probability = number of ways it could happen / total number of outcomes

Since there are 2 people with brown eyes, so the numerator is 2.

Since there are 12 people in total, the denominator is 12.

Probability = 2/12 = 1/6

5 0
3 years ago
Mike found 74 seashells on the beach, he gave Mary some of his
Fed [463]

Answer:

48 seashells

Step-by-step explanation:

you subtract 74-26 to get 48. to check your answer you do 74-48 to get 26.

7 0
2 years ago
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Miss penny inherits $520 She decides to save some of the money and spend the rest The ratio of savings to spending money is 9:4
Romashka-Z-Leto [24]

Answer:

savings = $360

spending = $160.

Step-by-step explanation:

saving : spending

  9       :      4

total amount = $520

add the two parts in the ratio(9+4) to get the total parts.

9 + 4 = 13parts .   so, 13 parts = 520.

what about 9 and 4?

13 = 520

9 = ?

9 × 520/13 = 360

4 × 520/13 = 160.

hope this helps.

8 0
3 years ago
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Evaluate the expression. [(3–5)(34)]3
yawa3891 [41]

Answer:

-204

Step-by-step explanation:

(3−5)(34)(3)

=−204

7 0
2 years ago
Help I will give Brainlyist
torisob [31]

Answer:

its A - 3 \frac{5}{6}

Step-by-step explanation:

3 0
3 years ago
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