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3 years ago

21. Mike deposited $700 in his savings account and it earned $39.90 in simple interest over 3 years. Find the simple

Mathematics

2 answers:

12345 [234]3 years ago

7 0

Answer:

Es la B

Step-by-step explanation:

Alika [10]3 years ago

5 0

D. 5.85%

700/39.90=17.54
17.54/3=5.85%

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Will give brainliest, please help fast

Gekata [30.6K]

Answer:

Converting the equation $x^2-20x+13=0$ into completing the square method we get: $\mathbf{(x-10)^2=87}$

Step-by-step explanation:

we are given quadratic equation: $x^2-20x+13=0$

And we need to convert it into completing the square method.

Completing the square method is of form: $a^2-2ab+b^2=(a-b)^2$

Looking at the given equation $x^2-20x+13=0$

We have a = x

then we have middle term 20x that can be written in form of 2ab So, we have a=x and b=? Multiplying 10 with 2 we get 20 so, we can say that b = 20

So, 20x in form of 2ab can be written as: 2(x)(10)

So, we need to add and subtract (10)^2 on both sides

$x^2-20x+13=0\\x^2-2(x)(10)+(10)^2-(10)^2+13=0\\(x^2-2(x)(10)+(10)^2) \:can\: be\: written\: as\: (x-10)^2 \\(x-10)^2-100+13=0\\(x-10)^2-87=0\\(x-10)^2=87$

So, converting the equation $x^2-20x+13=0$ into completing the square method we get: $\mathbf{(x-10)^2=87}$

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3 years ago

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pickupchik [31]

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Natali [406]

Answer:

C) 11

Step-by-step explanation:

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Answer:

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If f(x) = x2 and g(x) = x - 3, then f(g(x)) = ?

attashe74 [19]

Answer:

the answer is E

Step-by-step explanation:

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