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FinnZ [79.3K]
3 years ago
5

Simplify completely quantity 5 x squared minus 21 x minus 20 all over quantity 5 x squared minus 16 x minus 16.

Mathematics
2 answers:
Morgarella [4.7K]3 years ago
8 0
(5x^2-21x-20)/(5x^2-16x-16)
((x-5)(5x+4))/((x-4)(5x+4))
(x-5)/(x-4)
SVEN [57.7K]3 years ago
3 0

Answer: Simplified form will be

\frac{(x-5)}{(x-4)}

Explanation:

Since we have given that

\frac{5x^2-21x-20}{5x^2-16x-16}

We need to simplify the expression, we get,

\frac{5x^2-25x+4x-20}{5x^2-20x+4x-16}\\\\\text{We will split the middle terms}\\\\=\frac{5x(x-5)+4(x-5)}{5x(x-4)+4(x-4)}\\\\=\frac{(5x+4)(x-4)}{(5x+4)(x-4)}\\\\\text{ Cancel the common terms}\\\\=\frac{(x-5)}{(x-4)}

Hence, simplified form will be

\frac{(x-5)}{(x-4)}

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What is 40cm 25% of?
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3 years ago
Solve x2 = 12x – 15 by completing the square. Which is the solution set of the equation?
REY [17]
X ·2 = 12x - 15

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8 0
3 years ago
Read 2 more answers
What is the balance after 15 years in a savings account that earns 2% interest compounded bimonthly when the initial deposit is
motikmotik

The amount will be equal to $1348.07. The correct option is A.

<h3>What is compound interest?</h3>

Compound interest is the interest levied on the interest. The formula for the calculation of compound interest is given as:-

\rm A = P(1+\dfrac{r}{n})^{nt}

Compound Interest Formula:

A = Account Balance

P = Principle/Initial Amount

r = Rate of Interest (decimal)

n = Number of times compounded (per year)

t = Number of Years

Given Information

Account Balance = ?

It is given that the balance after 15 years in a savings account earns 2% interest compounded bi-monthly when the initial deposit is 1000.

This is because we are gaining money, so the multiplier should be greater than 1. We already added 1, which is 100% so you simply add the 0.02 for the extra 2%.

Number of times compounded per year = 6

This is because it is being compounded bi-monthly, or once every 2 months. 12 months divided by 2 months is 6 months, so 6 times a year.

Number of years = 15

Solve by plugging the given values into the formula.

\rm A = P(1+\dfrac{r}{n})^{nt}

\rm A = 1000(1+\dfrac{0.02}{6})^{6 \times 15}

A = 1000 x (1.14)

A = $1348.07.

Therefore, the amount will be equal to $1348.07. The correct option is A.

To know more about Compound interest follow

brainly.com/question/24924853

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3 0
2 years ago
Graham sold 6 magazines less than double what Adrianne sold, a. Which of the following expressions represents Graham's sales
mrs_skeptik [129]

Answer: 2a-6=g

Step-by-step explanation:

2a-6=g

2 times the amount Adrianne sold minus 6 equals the amount Graham sold.

NOTE: I don’t know which option this is because you did not provide it, so please just select the one that contains my answer (or something similar with just different variables, both variables have to be different though).

5 0
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