MATHEMATICS MIDDLE SCHOOL

Select the correct answer from the drop-down menu. Consider the equations y = |x − 1| and y = 3x + 2.
The approximate solution of this system of equations is

Answers

Answer 1

Answer:

Answer:

x = -1/4, y = 5/4.

Step-by-step explanation:

Because of the absolute value equation y = |x - 1| the value of y must be positive.

Solving x - 1 = 3x + 2 :

2x = -3

x = -3/2 and y = -5/2 so x= -3/2 is not a solution.

x - 1 xcan also be negative so we have the equation

- (x - 1) = 3x + 2

1 - x = 3x + 2

-1 = 4x

x = -1/4

y = 1 - - 1/4 = 5/4.

Answer 2

Answer:

Answer:

(-0.2,1.2)substitute 3x+2 for y and set them equal to eachother then plug in x for y

Step-by-step explanation:

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The Least Common Denominator (LCD) of the fractions 11/14 and 2/7 isA.98
B.28
C.14
D.7

HELP
QUICK
PLZ

Answers

Least common denominator finds a common number in the denominator of two fractions. 14 can be factored out as 2*7 and 7 is obviously 7*1. So the least common denominator could come from both numbers that have common denominators. In order to attain a common denominator, you need to multiply the 7 by 2 to make 14. So the least common denominator is c. 14.

the correct answer for that is c. otherwise 14

an elevator starts at the 6th floor. it goes up 7 floors twice then it goes down 10 floors. A second elevator starts on the 20th floor. It goes down 5 floors 3 times, and then it goes up 12 floors. Which elevator ends on a higher floor?

Answers

The second elevator.
20-5(3)+12=17>10=6+7(2)-10

The second elevator ends up higher

Solve for x:
log5 (5x – 14) = log5 (8x + 4)

Answers

Answer:

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Step-by-step explanation:

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BIG POINTS (82)

what is the area of a circle if its radius is 3596cm let pi=3.14

Answers

Area of a circle of radius $r$ : $A=\pi r^2$

3596cm = 35.96 m hence

Hence here $A=\pi r^2\approx3.14\cdot(35.96)^2=3.14\cdot1293.1216=4,060.401824m^2$