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Hunter-Best [27]
3 years ago
14

Solve please ;3 ( will give brainliest ♡ )

Mathematics
2 answers:
VLD [36.1K]3 years ago
8 0

Answer:

7

7 \times 4 + 3 \times  {4} ^{2}  \\ 28 + 58 \\ 86 \frac

goblinko [34]3 years ago
3 0

Hey!!

If h(x) =7x + 3x^2 and u want h(4)
U just do this x=4

h(x) =7x + 3x^2 , x=4

h(4) =7x4 + 3x4^2
h(4) =28 + 3x4^2
h(4) =28 + 48
h(4) =76 , i think that’s it
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Is (−5,−8) a solution of y>3x+6
vlabodo [156]
<h3>Answer: Yes the point (-5,-8) is a solution</h3>

======================================================

Explanation:

The point (-5,-8) means x = -5 and y = -8 pair up together.

Let's plug those values into the inequality

y > 3x+6

y > 3(-5)+6 .... replace x with -5

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The last inequality is true. The value -8 is larger than -9 since -8 is to the right of -9 on a number line. Stuff on the right is larger than stuff on the left.

Since the last inequality is true, this means the first inequality is true when (x,y) = (-5,-8). Therefore (-5,-8) is a solution.

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3 years ago
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Step-by-step explanation:

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Step-by-step explanation:

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Viefleur [7K]
X = 18

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