Please help!!!!!!!!!!

Mathematics

2 answers:

BigorU [14]1 year ago

4 0

Answer:

Step-by-step explanation:

5,12,13 is a right triangle

zzz [600]1 year ago

4 0

Answer:

answer is b

Step-by-step explanation:

i did a test on it

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cestrela7 [59]

Answer:

Cos (5π/3)

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2 years ago

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valentinak56 [21]

Answer:

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Step-by-step explanation:

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2 years ago

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Please simplify this expression.<br> 1 + 4.25n + 32p – 3 + (–2p) + 54n

nata0808 [166]

Answer:

58.25n+30p-2

Step-by-step explanation:

Given the expression as;

1 + 4.25n + 32p – 3 + (–2p) + 54n

collect like terms

1-3+4.25n+54n+32p-2p

-2+58.25n+30p

58.25n+30p-2

I have copied one brainly user's answer, sorry for that...

However, hope it helps you!!!

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2 years ago

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What is the solution x+2y=7 and x-2y=-1

erica [24]

$\underline{+\left\{\begin{array}{ccc}x+2y=7\\x-2y=-1\end{array}\right}\qquad\text{add both sides of the equations}\\\\.\qquad\qquad2x=6\qquad\text{divide both sides by 2}\\.\qquad\qquad \boxed{x=3}\\\\\text{Put the value of x to the first equation}\\\\3+2y=7\qquad\text{subtract 3 from both sides}\\\\2y=4\qquad\text{divide both sides by 2}\\\\\boxed{y=2}\\\\Answer:\ \boxed{x=3\ and\ y=2\to(3,\ 2)}$