3 years ago

Which two expressions are equivalent?

Mathematics

1 answer:

Nady [450]3 years ago

5 0

Step-by-step explanation:

D. 

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Y = (2/3)x - 1 y = -x + 4

Vinil7 [7]

Are these two separate questions?

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2 years ago

How to slove - Tan x°= 1.11 and what is the answer?

jarptica [38.1K]

$\bf tan(x^o)=1.11\impliedby \textit{taking }tan^{-1}\textit{ to both sides}
\\\\\\
tan^{-1}[tan(x^o)]=tan^{-1}(1.11)\implies \measuredangle x=tan^{-1}(1.11)$

plug that in your calculator, make sure the calculator is in Degree mode

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3 years ago

George studied 3/4 hour on monday and 7/8 hour on tuesday. how long did he study altogether on both days?

pentagon [3]

$\dfrac{3}{4}+\dfrac{7}{8}=\dfrac{3\cdot2}{4\cdot2}+\dfrac{7}{8}=\dfrac{6}{8}+\dfrac{7}{8}=\dfrac{6+7}{8}=\dfrac{13}{8}=\dfrac{8+5}{8}=\dfrac{8}{8}+\dfrac{5}{8}=1\dfrac{5}{8}\\\\Answer:\boxed{1\frac{5}{8}\ hour.}$