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DedPeter [7]
3 years ago
5

I need help fast please help I’ll give 30 points

Mathematics
1 answer:
LuckyWell [14K]3 years ago
8 0
I need Brainliest please vote me
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Does anyone know this?
weeeeeb [17]

Answer:

BC = 10.24

Step-by-step explanation:

You can use the Pythagoras theorem for this question

a^{2} + b^{2} = c^{2}

a = 8cm

b = ???

c = 13cm

We will solve for B (length BC)

a^{2} + b^{2} = c^{2}

8^{2} + b^{2} = 13^{2}

Rearrange for b

b^{2} = 13^{2} - 8^{2}

b^{2} = 105

b = \sqrt{105}

b = 10.24

7 0
3 years ago
Last week, Sarah bought a designer shirt at the sale price of $24. The original cost of the shirt was $40. What percent represen
11Alexandr11 [23.1K]

Answer:

40%

Step-by-step explanation:

Amount of money discounted

= $40 - $24

= $16

Percentage of discounted money

= 16/40 x 100%

= 40%

7 0
3 years ago
Jdyhrbykogyshskroghref
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Isolate x; you must get all the constants on one side of the equation and the variables on the other side. Use subtraction/addition to do this. Reply to me once you've done that if you still need help. 
4 0
3 years ago
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X + 5 = -3^x + 4<br> A. X= -2.25<br> B. X= 3.75<br> C. X= -1.25<br> D. X= 1.25
Tamiku [17]
I think it is D the answer choose
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3 years ago
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What’s the answer to this problem 5 yards 2 feet multiply by 2 ?
Verizon [17]

Answer:

10 yards and 4 feet

Step-by-step explanation: multiply 5x2 then 2x2

8 0
3 years ago
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