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Natasha_Volkova [10]

3 years ago

6

Help me in this problem please !!

1 answer:

frozen [14]3 years ago

5 0

Answer:

SECTION B

Step-by-step explanation:

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What is the solution to this system

padilas [110]

The answer would be (0,-2)

3 0

3 years ago

Which of the following is an example of a quadratic equation?

REY [17]

Answer:

B. x^2 - 64 = 0

Step-by-step explanation:

A. x+10 = 33

B. x^2 - 64 = 0

C. Y-776

D. y = 4x + 6

A quadratic has an term with a power of two

3 0

3 years ago

Read 2 more answers

You have 2,112 grams of a radioactive kind of mercury. How much will be left after 188 days if it's half-life is 47 days?

Anastasy [175]

Answer:

132 g

Step-by-step explanation:

Initial amount = 2112 g
Time = 188 days
Half-life = 47 days

188 days / 47 days = 4 periods

<u>Mercury left after 188 days:</u>

2112 * (1/2)^4 =
2112* 1/16 =
2112/16 =
132 g

4 0

2 years ago

Simplify the following:<br> 3x+2y+7-5x+7y

const2013 [10]

<span>3x+ 2y+7 -5x+7y
= -2x + 9y + 7

hope it helps</span>

3 0

3 years ago

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Subtract the following polynomials. Write answer in a-b-c-d order. From 4a+7b-12c subtract 8a-9b+12d

ozzi

$(4a+7b-12c)-(8a-9b+12d)\\4a+7b-12c-8a+9b-12d$

Negative multiply negative = Positive

Negative multiply positive = negative

$-8a+4a+9b+7b-12c-12d\\-4a+16b-12c-12d$

Thus the answer is -4a + 16b - 12c - 12d.

4 0

2 years ago