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spin [16.1K]
3 years ago
15

What is (x - 4y) (-3x - 2y) = ?

Mathematics
1 answer:
Artemon [7]3 years ago
3 0
The answer is -3x^2+10xy+8y^2
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Suppose that angles A and B are complementary angles, where A is 5 times
Alla [95]

Answer:

105

Step-by-step explanation:

Let the angle of B be x

According to the question,

5x+x=90

or, 6x=90

or, x=15

The angle of B is 15

The angle of A is (15*5)=75

The supplementary angle of A is

(180-75)=105

4 0
2 years ago
5/10 + 1/5 = ??<br><br> Simplify answer fully
Andreyy89
Multiply the second fraction by two; which gets you 5/10 + 2/10 = 7/10
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7 0
3 years ago
An investor plans to invest $500 a year and expects to get a 10.5% return. If the investor makes these contributions at the end
taurus [48]

The present value of the investment is $6000.

According to the statement

Principal amount = $500

and Return amount = 10.5%

Time period = 20 years.

Now we find the present value of money then

By the formula

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PV = 6000

So, The present value of the investment is $6000.

Learn more about Return Amount here brainly.com/question/2456547

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1 year ago
Question 4
alina1380 [7]
For question 4 the answer is yes and for question 5 the answer is false
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