3 years ago

I don't understand this at all plz just help no explanation needed

Mathematics

1 answer:

Finger [1]3 years ago

4 0

Answer: 24

Step-by-step explanation:

i solved it and can give explanation if needed :)

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5 common multiples of 7 and 20

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What is the solution to the system of equations graphed below?

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WINSTONCH [101]

Answer:

109

Step-by-step explanation:

$\textbf{Assuming}~ i ~\textbf{as the imaginary unit, where}~ i = \sqrt{-1}~ \textbf{and}~ i^2 = -1\\\\\textbf{Given that,}\\\\~~~(10+3i)(10-3i)\\\\=10^2 -(3i)^2~~~~~~~~~~;\textbf{Difference of two squares} ~a^2 -b^2 = (a+b)(a-b)\\\\=100-9i^2\\\\=100-9(-1)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~;{i^2 = -1}\\\\=100+9\\\\=109$

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I have to solve for ABC n round to nearest whole number

Brums [2.3K]

Answer:

∠B

7(13)-1=90˚

Step-by-step explanation:

Are you saying ∠ABC or ABC as sides?

1. ∠ABC

(7x-1)+(4x+1)+(3x-2)=180˚

14x-2=180˚

14x=182

x=182/14

x=13˚

2. plug in

∠A

4(13)+1=53˚

∠B

7(13)-1=90˚

∠C

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3 years ago