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Alik [6]
3 years ago
14

I will give brainliest if you answer this question!!

Mathematics
2 answers:
Mariulka [41]3 years ago
8 0
A, C, D. B isn’t right because there is a negative
AnnZ [28]3 years ago
4 0

A,C,D

"B" is definitely not the answer because the fraction isn't negative but the decimal is negative which isn't right.

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-30 = -16 + N what is he answer to this
marta [7]

Answer:

Step-by-step explanation:

To solve for the given variable N, we need to get N on one side of the equation by itself. To do so, we need to remove the -16 that is on the same side of the variable.

To get rid of the -16, we can add a 16 to that side of the equation since -16 + 16 = 0, which will get N by itself; however, if we add -16 to one side of the equation, we must add it to both sides of the equation:

-30 + 16 = -16 + 16 + N

-14 = N

4 0
3 years ago
A 2-gallon container of disinfectant costs $24.32. What is the price per cup?​
max2010maxim [7]
.76 cents per cup.

Their are 16 cups in a gallon.
2 gallons would be 32cups.
Divide 24.32 by 32.

0.76 is your answer
4 0
2 years ago
Read 2 more answers
Solve 3x2 = −12x − 15.<br><br> x = −4 ± 2i<br> x = −4 ± i<br> x = −2 ± 2i<br> x = −2 ± i
diamong [38]
ANSWER

x = - 2 \pm i

EXPLANATION

We use the method of completing the squares.

The equation is
3 {x}^{2} = - 12x - 15

We rewrite the above equation to obtain;

3 {x}^{2} + 12x = - 15

We divide through by 3 to obtain;

{x}^{2} + 4x = - 5

We add half the coefficient of
x

to both sides of the equation to get,

{x}^{2} + 4x + {2}^{2} = - 5 + {2}^{2}

The right hand side is now a perfect square.

{(x + 2)}^{2} = - 1

We now take square root of both sides to get;

x + 2 = \pm \sqrt{ - 1}

We add -2 to both sides,

x = - 2 \pm \sqrt{ - 1}

We simplify to obtain,

x = - 2 \pm i
3 0
3 years ago
Multiply and divide in scientific notation​
sashaice [31]

Answer:

To multiply two numbers in scientific notation, multiply their coefficients and add their exponents. To divide two numbers in scientific notation, divide their coefficients and subtract their exponents. In either case, the answer must be converted to scientific notation.

Step-by-step explanation:

4 0
3 years ago
A student ran a distance of 2 1/2 miles each day for 9 days. The student ran a distance of 5 3/4 miles each day for the next 3 d
cestrela7 [59]

Answer:

39.75 miles

Step-by-step explanation:

5 0
3 years ago
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