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kotykmax [81]
3 years ago
7

Which expression has a value that is equivalent to 5n+13 when n= -5

Mathematics
1 answer:
maks197457 [2]3 years ago
5 0

Answer:

Option A is correct.

4n + 8 expression which has a value that is equivalent to 5n+13 when n = -5

Step-by-step explanation:

Given the expression: 5n + 13

If n = -5

then, by substituting in given expression we get;

5(-5)+13 = -25+13 = -12

Option A:

4n + 8

Substitute the value of n = -5 we have;

4(-5) + 8 = -20 + 8 = -12

Option B:

2n + 2

then;

2(-5) + 2 = -10 + 2 = -8

Option C :

n^2+13

then;

(-5)^2+13 = 25 + 13 = 38

Option D:

n + 8

then;

-5 + 8 = 3

Therefore, only option A has expression which has a value that is equivalent to 5n+13 when n = -5


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Length of the base of the given triangle is (x+3) units and the perpendicular height is (x-1)units. If the area of the triangle
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Step-by-step explanation:

the area of a triangle is

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so, in our case we know this is 10 :

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= -1 - 2×2.45 = -1 - 4.9 = -5.9 ≈ -6

x2 would give us negative lengths for the triangle, which does not make sense.

so, x = 4 is our solution.

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