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3 years ago

Help me with these questions. If you can put on a separate piece of paper then send it. With the work shown out

Mathematics

1 answer:

natta225 [31]3 years ago

3 0

All you need to do is balqnce the equations so that you can do simultaneous equwtions

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4. Kaitlyn left her house for soccer practice at 4:15. She returned at 6:35. 20 points

kkurt [141]

Answer:

D. 2:20

Step-by-step explanation:

6 : 35 - 4 : 15 = 2 : 20

4 0

3 years ago

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Given the following equation x2 + 4x = 21 find the solutions. (Show All Work)

NeTakaya

Step-by-step explanation:

15a)

$x^2+4x=21$ Subtract both sides by 21

$x^2+4x-21 =0$

15b)

7 and -3 multiply to -21 and add to 4

The factors are (x+7)(x-3)

15c)

x+7 =0

x=-7

x-3=0

x=3

7 0

3 years ago

Which is the simplified form of the expression ((2^-3)(x^-3)(y^2) / (4^-2)(x^4)(y^6))^2

Natalka [10]

Hello,
Please, see the attached file.
Thanks.

4 0

3 years ago

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Could someone please help mee

Vladimir [108]

Answer:

8.8 david

13.2 jo

22 mary

Step-by-step explanation:

6 0

3 years ago

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Solve the inequality 3(x+2)>0

Goryan [66]

Distribute
3x+6>0

Subtract 6 from both sides
3x>-6

Divide both sides by 3
x>-2

Final answer: x>-2

4 0

4 years ago