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storchak [24]
3 years ago
6

What is a correct first step in solving the inequality –4(3 – 5x)≥ –6x + 9?

Mathematics
1 answer:
Masteriza [31]3 years ago
8 0

Answer:

<em>-12 + 20x ≥ -6x + 9</em>

<em>Fourth choice</em>

Step-by-step explanation:

<u>Inequalities</u>

We are given the inequality:

-4(3 - 5x) ≥ -6x + 9

Solving the inequality implies having x isolated on one of the sides.

We must start by removing the parentheses. It will be done by multiplying -4 by (3 - 5x). Since this operation doesn't imply multiplying all the inequality by a negative number, the sign won't be flipped:

-4*3 - (-4)5x ≥ -6x + 9

Multiplying:

-12 + 20x ≥ -6x + 9

Fourth choice

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Compute the following products.<br> (4x+5)(4x−5)<br><br> (4x+5)2
bearhunter [10]
(4x+5)(4x-5) is equal to 16x^2+20x-20x-25
The positive and negative 20x cancel out
Leaving you with: 16x^2 - 25
[S/N this is a pattern that shows up a decent amount. Whenever you have something that looks like (x^2-y^2) it factors out to (x+y)(x-y). It might be helpful to remember]

The next one, (4x+5)2, just follows the distributive property. Multiply both components within the parentheses bye the coefficient of 2: 8x+10
3 0
2 years ago
1)
lisabon 2012 [21]
<span>186.556 celcius

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3 0
3 years ago
Read 2 more answers
Please help, I can’t seem to figure this out.
Mamont248 [21]

I got 2.1  please rate 5 stars and thanks

8 0
3 years ago
Asia have cooked 7 kg of mashed potatoes for A dinner party it’s a gues A dinner party if the guest only ate 3/4 of them out he
andre [41]

Answer:

5.25

Step-by-step explanation:


7 0
3 years ago
PLEASE HELP! SEE THE IMAGES BELOW! 30 POINTS
Mkey [24]

Answer:

d for the first and c for the second

Step-by-step explanation:

1. both are solid lines so it is or equal to something. the first line is going down by -3 and crosses the y axis at -3 so it is _>_ - 3x-3

the second line is going down at -1/2 and crosses the y axis at 2 so it is       _<_ -1/2x+2


2. The point where the two lines cross is at (2.5, -6.5)

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3 years ago
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