3 years ago

PLS HELP WILL MARK BRAINLIEST!!

Mathematics

1 answer:

Alekssandra [29.7K]3 years ago

6 0

Answer: A

Step-by-step explanation: I used my mind (lie), u good

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On a scale drawing, 1 millimeter equals 4 centimeters. If a line on the drawing is 45 millimeters, how many meters is it actuall

allochka39001 [22]

Answer: 180 m

Step-by-step explanation:

45 x 4

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3 years ago

Please help I'am very lost on this one thank you all

LUCKY_DIMON [66]

Large rectangles = 2*3*6
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3 years ago

Simplify:<br>1/1-x^(b-a)+1/1-x^(a-b)

Pachacha [2.7K]

Answer:

Step-by-step explanation:

simplify:

1/1-x^(b-a)+1/1-x^(a-b)

$\frac{1}{1-x^{b-a}} + \frac{1}{1-x^{a-b}}\\= \frac{1-x^{a-b} + 1-x^{b-a}}{(1-x^{b-a})(1-x^{a-b})}\\= \frac{1-x^{a-b} + 1-x^{b-a}}{(1-x^{b-a}-x^{a-b}+x^{b-a+a-b})}\\= \frac{1-x^{a-b} + 1-x^{b-a}}{(1-x^{b-a}-x^{a-b}+1)}\\= \frac{2-x^{a-b}-x^{b-a}}{2-x^{b-a}-x^{a-b}}\\= 1\\ \\$