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2 years ago

Simplify the expression: 3(2x2 + 7x + 4) - 8x2 + 15

Mathematics

1 answer:

Softa [21]2 years ago

5 0

Answer:

-2x² + 21x + 27

Step-by-step explanation:

distribute 3 to get:

(6x² + 21x + 12) - 8x² + 15

combine 'like terms' to get:

-2x² + 21x + 27

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What is 1/4 divided by 5?

kap26 [50]

1/4 divided by 5 is 0.05 or 1/20

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3 years ago

Nick decided to take 2/5 of the money in his bank account and donate it to a local charity. If nick donated $70 to a local chari

S_A_V [24]

Answer:

The total amount = $175

Step-by-step explanation:

Let the total amount in his bank account = x

Nick decided to take 2/5 of the money in his bank account and donate it to a local charity

So, he donates with $\frac{2}{5} x$

If nick donated $70 to a local charity

so, $\frac{2}{5} x = 70$

solve for x

∴ x = 5*70/2 = 350/2 = $175

So, The total amount = $175

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2 years ago

. 7/8 = /48 A. 6 B. 1 C. 13 D. 42

hodyreva [135]

7/8=x/48

x=(7/8)48
x=(7)(48/8)
x=(7)(6)
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D.42

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3 years ago

How many square feet of outdoor carpet will

anastassius [24]

Answer:

Step-by-step explanation:

24+12

4 0

2 years ago

Read 2 more answers

You choose a tile at random from a bag containing 4 A’s, 3 B’s, and 5 C’s. You replace the first tile in the bad and then choose

shtirl [24]

Answer:

P(B and B) = 1/9

Step-by-step explanation:

There are 4+3+5 = 12 tiles in total

The probability of selecting a B would be 4/12=1/3

When you are replacing a B tile, planning to pick a B tile again, the total tile count doesn't change. Therefore, because the two events are independent, their probabilities are multiplied and so P(B and B) = P(B) * P(B) = 1/3 * 1/3 = 1/9

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2 years ago