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Sergio039 [100]
3 years ago
9

Simplify the expression to a + bi form: (10 + 6i)(- 2 - 4i)

Mathematics
1 answer:
shusha [124]3 years ago
4 0

Answer:

4 - 52 i

Step-by-step explanation:

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Simplify the expression and write without negative exponents:
andreyandreev [35.5K]
8sr6 + 2sr2×2×3 +5sr3 - sr2×3×3×3
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=8sr6 + 4sr3 + 5sr3 - 3sr6
=8sr6 - 3sr6 + 4sr3 +5sr3
=5sr6 + 9sr3 (ans)
3 0
3 years ago
If you knew that two angles were comlementary and were given the measure of one of those angles, would you be able to find the m
Mnenie [13.5K]

Answer:

Yes, any pair of complementary angles add up to 90 degrees. By simply using 90-x you can find the other angle.

3 0
3 years ago
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What is the slope of the line?
riadik2000 [5.3K]

Answer:

The slope of the line must be 3

Step-by-step explanation:

<u><em>The picture of the question in the attached figure</em></u>

step 1

we know that

The volume of a rectangular prism is equal to

V_r_p=Bh ----> equation A

where

B is the area of the base of the prism

h is the height of the rectangular prism

step 2

The volume of a square pyramid is equal to

V_s_p=\frac{1}{3}Bh -----> equation B

where

B is the area of the square base of pyramid

h is the height of the pyramid

step 3

substitute equation A in equation B

V_s_p=\frac{1}{3}V_r_p

Find the relationship between the volume of  a rectangular prism and the volume of a square pyramid

\frac{V_r_p}{V_s_p}=3

therefore

The slope of the line must be 3

let's check it

To solve for the slope of the line, you must choose two coordinates first and use the formula

m=\frac{y2-y1}{x2-x1}

Choosing the points (2,6) and (3,9)

substitute

m=\frac{9-6}{3-2}=3 ----> is correct

8 0
4 years ago
What is the perimeter of a square with a side length of 5/7 units.
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Perimeter = 4× 
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Hope that helps!
8 0
3 years ago
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Allison earned $200 the first month she worked and $250 the second month she worked. By what percent did her salary increase?
Afina-wow [57]

Answer: 25%

Step-by-step explanation:

From the question, we are informed that Allison earned $200 the first month she worked and $250 the second month she worked.

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= 25%

The percentage increase is 25%

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3 years ago
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