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3 years ago

I need help fast please

Mathematics

1 answer:

Tpy6a [65]3 years ago

8 0

Answer:

Step-by-step explanation:

144/18=7

56/7=8

56/8

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3 years ago

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4 years ago

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3 years ago

If 5<2x+3<11, what is the possible range of value of -4x-6

Lady bird [3.3K]

Answer:

-10 > (-4x - 6) > -22

Step-by-step explanation:

Given inequality is 5 < 2x + 3 < 11

Now we will multiply this inequality by (-2) resulting,

5(-2) > (2x + 3)(-2) > 11(-2)

-10 > (-4x - 6) > -22 (Sign of inequality gets reversed when the inequality is multiplied or divided by a negative number)

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4 years ago

Pls help me. I'm lost<br>

Ket [755]

Answer:

f(-2) = 13

g(4) = -9

Explanation:

Whenever a question is asking you to find something like, in this example, f(-2) or g(4), you have to substitute whatever number is in the parentheses for every x in the function with that letter.

Let's try to find f(-2). We have to substitute -2 for every x in the function f and simplify:

$f(-2) = -2 (-2)^{3} -3\\f(-2) = -2(-8)-3\\f(-2) = 16 - 3 \\f(-2) = 13$

Therefore, $f(-2) = 13$ .

Next, let's try to find g(4). We have to substitute 4 for every x in the function g and simplify:

$g (4) = -2(4) - 1\\g(4) = -8-1\\g(4) = -9$

Therefore, $g (4) = -9.$

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3 years ago