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grigory [225]
3 years ago
5

Simplify. −3i √-40 

Mathematics
2 answers:
BlackZzzverrR [31]3 years ago
6 0

6√10

-3i√-40

-3i^2√40

^

4 * 10

2*2 5*2

-3i^2√2*2*2*5

-6i^2√10

-6(-1)=6

6√10

☺

BartSMP [9]3 years ago
4 0

i have the answer here


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Mallorie has $12 in her wallet. If this is 20% of her monthly allowance, what is her monthly allowance.​
Doss [256]

Answer:

Her Monthly allowance is 60 dollars

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Find the slope of the line that passes through the points 2,4,6 and 12
kolezko [41]

Answer:

The slope is 2.

Step-by-step explanation:

If you use the formula that is shown in the picture, you can calculate that 12-4/6-2 is the slope. If you simplify, you'll get that 8/4 is the slope which simplifies to 2.

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3 years ago
Solve for y -72=8(y-3)
DaniilM [7]

Answer:

Step-by-step explanation:

y - 72 = 8(y - 3)

Distribute the 8 into (y - 3).

y - 72 = 8y - 24

Subtract 8y from both sides.

-7y - 72 = -24

Add 72 to both sides.

-7y = 48

Divide both sides by -7.

y = -48/7 or approxametly -6.9.

Proof:

y - 72 = 8(y - 3)

Substitute variable.

-48/7 - 72 = 8(-48/7 - 3)

Subtract.

-552/7 = 8(-69/7)

Multiply 8 by the inside term -69/7.

-552/7 = -552/7.

3 0
3 years ago
How do u solve y=2(3x+4)^3-1
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3 years ago
Solve for x 14 x square+7x-6
irina [24]

Answer:

x=0.450765 or x=−0.950765

Step-by-step explanation:

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→ Find the product, sum and factors

Product = -6

Sum = 7

Factors = No factors

→ Since there are no factors utilise the quadratic formula

\frac{-b+-\sqrt{b^{2}-4ac } }{2a}

→ List the values of a, b and c

a = 14

b = 7

c= -6

→ Substitute into the formula

\frac{-7+-\sqrt{7^{2}-4*14*-6} }{2*14}

→ Simplify

x=0.450765 or x=−0.950765

8 0
4 years ago
Read 2 more answers
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