3 years ago

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

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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%

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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.

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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

Read 2 more answers

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

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3 years ago