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Serggg [28]
2 years ago
5

Evaluate

Mathematics
1 answer:
VMariaS [17]2 years ago
3 0

Answer:

  -3/4

Step-by-step explanation:

A calculator can work this for you. All you need to do is substitute the numbers for the variables.

  yx^y -xy^x

  = 4(1/2)^4 -(1/2)(4^(1/2))

  = 4/16 - 1/2√4 = 1/4 - 1

  = -3/4

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The correct expression for a number which is 9 times as big as the number obtained after p has been increased
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Answer:

9(p + 4)

Step-by-step explanation:

One of the unknown variable is p.

First of all, we know that the number is 9 times as big (multiplication) as the new number obtained through the addition of four to p i.e (p + 4).

Translating the word problem into an algebraic expression, we have;

9 * (p + 4) = 9(p + 4)

Simplifying further, we have;

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Answer:

Step-by-step explanation:

Area = length * width

length: x + 3

width: x - 5

A = (x + 3)(x - 5)

Simplify (x + 3)(x - 5) using the FOIL method:

 

1. First numbers: multiply the first number of each binomial together--x*x = x%5E2

2. Outer numbers: multiply the outer number of each binomial (out of the entire expression, the number farthest to the left (x) and the number farthest to the right (-5))--x*-5 = -5x

3. Inner numbers: multiply the inner number of each binomial--3*x = 3x

4. Last numbers: multiply the last number of each binomial--3*-5 = -15

==> Now, add all of the results together and combine like terms: x%5E2+-+5x+%2B+3x+-+15 = x%5E2+-+2x+-+15

Therefore, A = x%5E2+-+2x+-+15

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