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slamgirl [31]
3 years ago
8

Please Help With all 3! Will Give 100 Points + Brainliest!

Mathematics
1 answer:
koban [17]3 years ago
3 0

Answer: I don't see anything. Maybe upload some images?

Step-by-step explanation:

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157.70 for 19 shirts
Jlenok [28]

Answer:

Each shirt was $8.30

Step-by-step explanation:

6 0
3 years ago
Solve the equation for t. (t-7)^2+18=9
Anika [276]

Answer:

t = 7 + 3i

Step-by-step explanation:

(t-7)^2 + 18 = 9

(t-7)^2 = 9 - 18

(t-7)^2 = -9

(t-7) = sqrt(-9) = |3| sqrt(-1)

t = 7 + 3i

4 0
2 years ago
You place the spring vertically with one end on the floor. You then drop a book of mass 1.50 kg onto it from a height of 0.900 m
Alex777 [14]

Answer:

The value of the maximum distance the spring will be compressed  

x = 0.143 m= 14.3 cm

Step-by-step explanation:

Given data

Mass m = 1.5 kg

h = 0.9 m

k = 1500\frac{N}{m}

Since the book is released from a height h = 0.9 m above the top of the spring. so the total distance

y = h + x

Now in that case for the spring

mg y= \frac{1}{2} k x^{2}

mg(h +x) = \frac{1}{2} k x^{2}

By rearranging the above equation we get

k x^{2}  - 2mgx - 2mg h = 0

Put all the values in above equation we get

1500x^{2}  - 29.43 x - 26.48 = 0

By solving the above equation we get

x = 0.143 m= 14.3 cm

This is the value of the maximum distance the spring will be compressed.

8 0
3 years ago
Write an addition problem that is modeled by the following number line :
rewona [7]

Answer:

-10+15

Step-by-step explanation:

Pls Brainliest! ;) It would mean a lot! Also this is called integers addition on a line plot.

3 0
3 years ago
Read 2 more answers
I NEED HELP.<br> 2X^2-8X= BUT FACTORISE!
shutvik [7]

Answer:

This is my answer

2x(x-4)

Step-by-step explanation:

2x(x-4)

3 0
3 years ago
Read 2 more answers
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