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fomenos
4 years ago
13

Given two linear equations, explain how you can determine if the lines are parallel without graphing them

Mathematics
1 answer:
alexira [117]4 years ago
7 0
Hello : 
let A and B two points in the first line calculate the slope : <span>:   (YB - YA)/(XB -XA)
</span>let C and D two points in the second line calculate the slop  (YC - YD)/(XC -XD)
you are slope 
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Find the area of a semi-circle with radius, r = 2cm.
hoa [83]

Answer:

The answer is 2pi

Step-by-step explanation:

To find the area of a cirlce, use the equation ( pi * r^2 ) so for a semi circle, which is half, simply divide that by 2. Plug in 2 for radius and you get 4pi/2 which simplifies to 2pi.

5 0
3 years ago
Solve for x: 3(9-8x-4x)+8(3x+4)=11
inysia [295]

Answer:

x=4

Step-by-step explanation:

3(9-8x-4x)+8(3x+4)=11

Subtract  4 x  from  − 8 x

3 ( 9 − 12 x ) + 8 ( 3 x + 4 ) = 11

Distribute

27 − 36 x + 24 x + 32 = 11

Simplify

− 12 x + 59 = 11

Subtract 59 to both sides

− 12 x = − 48

Divide by -12

x=4

3 0
3 years ago
How do you turn a percentage into a fraction?
enot [183]

Answer:

write the percent divided by 100

Step-by-step explanation:

1) write the percent divided by 100.

2) if the percent is not a whole number, multiply both top and bottom by 10 for every number after the decimal point.

3) reduce (simplify) the fraction.

3 0
3 years ago
Does anyone know? I'm trying to do this and I can't get past this one.
Andrews [41]

Answer:

b is the correct answer

Step-by-step explanation:

mark as brainlist

3 0
3 years ago
Helpppppppppppp[[[[[
bezimeni [28]

Answer:

1/4

Step-by-step explanation:

First - Convert all fraction with the Greatest Common Factor of 12

12 1/2 = 150/12

4 1/4 = 51/12

2 2/3 = 96/12

Second - Subtract the patio wood and the total

150/12 - 51/12 - 96/12 = 3/12

Third - Simplify 3/12 to 1/4

1/4 of the total wood is left to build the frame of the birdhouse.

4 0
3 years ago
Read 2 more answers
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