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4 years ago

Given, Q =x^b/x^c If Q=1 then proof that b=c

Mathematics

1 answer:

LuckyWell [14K]4 years ago

4 0

Answer:

Q = x^ b / x^c
Q = x^(b-c)
1 = x^ (b-c)
x^0 = x^ (b-c)
0 = b - c
b = c

Step-by-step explanation:

if the same base are in division then the powers are subtracted
x^0 = 1
if there is same base in an equation then the power of the base can be the equation

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vladimir2022 [97]

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4 years ago

Drew invests $4000 at 6% for 5 years. How much interest does Drew earn? Remember the formula for simple interest is I=prt.

expeople1 [14]

Answer:

I = $1,200.00

Step-by-step explanation:

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3 years ago

Solve the system of equations below. <br> 5x + 2y = 9<br> 2x - 3y = 15

riadik2000 [5.3K]

Answer:

(3,-3)

y= -3

x= 3

Step-by-step explanation:

5x+2y=9

2x-3y=15

solve the equation

x=9/5-2/5y

2x-3y=15

substitute the value of x into an equation

2(9/5-2/5y)-3y=15

distribute

18/5-4/5y-3y=15

subtract -4/5 to -3

18/5-19/5y=15

subtract 18/5 from both sides

-19/5=57/5

divide both sides by -19/5

y= -3

substitute the value of y into an equation

x=9/5-2/5(-3)

distribute

x=9/5+6/5

add 9/5 to 6/5

x=3

--------

(3,-3)

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4 years ago

Find the slope of the line passing through the points (-6,2), (0,-6).

Serhud [2]

C. -4/3

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3 years ago