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4 years ago

Write two equivalent expressions to represent the area of this rectangle.

Mathematics

1 answer:

KengaRu [80]4 years ago

6 0

Answer:

The two expression to represent area is (5 x - 10) sq. units or 5( x- 2) sq. units

Step-by-step explanation:

Here, the length of the rectangle = (x-2) units

The width of the rectangle = 5 units

Now, AREA OF A RECTANGLE = LENGTH x WIDTH

So, here AREA = 5 ( x- 2)

= (5 x - 10) sq. units

( as by Distributive property: A (B-C) = AB - AC)

Hence, the two expression to represent area is (5 x - 10) sq. units or 5( x- 2) sq. units

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4 years ago

Using the quadratic formula to solve x2 = 5 – X, what are the values of x? -1 + 21 2 -12/19/ 2 5+21 2 1+ 191 2

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Answer:

${x}^{2} = 5 - x \\ { \tt{ {x}^{2} + x - 5 = 0 }} \\ \\ { \bf{x = \frac{ - b± \sqrt{ {b}^{2} - 4ac } }{2a} }} \\ \\ { \tt{x = \frac{ - 1± \sqrt{21} }{2} }} \\$

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3 years ago

Please help with multiple choice question

Volgvan

Answer:

D: {9, 21, 33}

Step-by-step explanation:

Ken worked 2, 8 and 14 hours on 3 separate days.

For working 2 hours, his earnings were f(2) = 2(2) + 5, or 9;

For working 8 hours, his earnings were f(28) = 2(8) + 5, or 21; and

For working 14 hours, his earnings were f(14) = 2(14) + 5, or 33

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3 years ago

What is the answer to this question

stiv31 [10]

4(d-8)-5 = 9(d+2)+1

Assuming you're looking for d:

Use Distributive Property for both sides
4d-32-5 = 9d+18+1

Combine like terms
4d-37 = 9d+19

Take all d's to one side & numbers to other
-37-19 = 9d-4d

Simplify
-56 = 5d

Divide both sides by 5
d = -56/5

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3 years ago

Read 2 more answers