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Butoxors [25]
3 years ago
5

Factor the expression. k2 + kf – 2f2

Mathematics
2 answers:
Lynna [10]3 years ago
5 0
Work: k^2+kf-2f^2
Factor
(K+2f)(k-f)
Answer: (k+2f)(k-f)
Check your work:
K+2f k-f
K^2+2kf-kf-2f^2
K^2+kf-2f^2

The answer is correct
Alex73 [517]3 years ago
5 0

Answer:

Factorized form of the given expression is (k + 2f)(k - f).

Step-by-step explanation:

The given expression is k² + kf - 2f² and we have to factorize the given expression.

k² + kf - 2f² = k² + 2kf - kf - 2f²

= k(k + 2f) - f(k + 2f)

= (k + 2f)(k - f)

So the factorized form of the expression is (k + 2f)(k - f).

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You deposit $2700 in an account that earns simple interest. After 12 months, the account earns $64.80 in interest, what is the a
Masja [62]

Answer:$4449.6.

Step-by-step explanation:

You deposit $2700 into a bank account paying 64.8% simple interest per year. You left the money in for 1 year. Find the interest earned and the amount at the end of those 1 year?

Result:

The interest is $1749.6 and the amount is $4449.6.

Explanation:

STEP 1: Find an interest by using the formula , where I is interest, P is total principal, i is rate of interest per year, and t is total time in years.

In this examplee P = $2700, i = 64.8% and t = 1 years, so

 

STEP 2: Find an amount by using the formula .A =P+I

Since P = $2700 and I = $1749.6 we have

5 0
3 years ago
Find the area of the figure to the nearest tenth, if necessary.
Crazy boy [7]

Answer:

36 ft²

Step-by-step explanation:

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length \times width

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Area of triangle:

\frac{base \times height}{2}

base=8-4=4\\height=2

\frac{4 \times 2}{2}

\frac{8}{2} =4

Area of figure = 32 + 4 = 36

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