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jasenka [17]
3 years ago
15

I Need help. Thanks.

Mathematics
2 answers:
Aneli [31]3 years ago
8 0

Answer:

y\ge \:-2

Step-by-step explanation:

-2(5y-5)-3y \leq -7y+22

Expand the brackets

-10y+10-3y \leq -7y+22

-10y-3y+10 \leq -7y+22

-13y+10 \leq -7y+22

Add 7y and -10 on both sides.

-13y+7y \leq 22-10

-6y \leq 12

Divide -6 on both sides.

\frac{-6y}{-6}\ge \frac{12}{-6}

y\ge \:-2

PIT_PIT [208]3 years ago
5 0

Answer:

A

Step-by-step explanation:

-2(5y-5)-3y\leq -7y+22

Expand parentheses:

-10y+10-3y\leq -7y+22

Move all y's to one side and numbers to the other:

-6y\leq 12

Divide both sides by -6. Since you are dividing both sides by a negative number, you need to flip the comparator:

y\geq -2

Hope this helps!

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Answer:

2x^3 + 3x^2 - 11x - 6.

Step-by-step explanation:

(2x+1) (x-2) (x+3)

= (2x + 1)[x(x + 3)-2(x + 3)]

= (2x + 1)(x^2 + x - 6)

= 2x(x^2 + x - 6) + 1(x^2 + x - 6)

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Aleksandr-060686 [28]

Answer:

See below.

Step-by-step explanation:

When Brian passes Alex they both have travelled the same distance.

Call this distance d.

Let the speed that Brian passes = x miles/hour.

Distance = speed * time  so:

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ANSWER:

Brian's speed is 15 miles/hour.

Alex's speed is 15 - 5 = 10 miles/hour.

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Step-by-step explanation:

hope this helps!!!

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