Which ordered pair is a solution of the equation?

1 answer:

3 0

It will be D. Neither, because when you plug in 5 for x and 4 for y, the left side will equal 0, while the right side equals 7(5-6) = 7(-1) = -7, which does not equal 0 on the left side. If you use 6 for x and 5 for y, the left side will be 1 (5-4) and the right side will equal 0, 7(6-6) = 7(0) = 0, which does not equal to 1

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Find the y-intercept of a line parallel to 8x – 2y = 12 and passes through the point (5, 3).

Dmitry_Shevchenko [17]

Answer:

-17

Step-by-step explanation:

8x -2y= 12

Divide the whole equation by 2:

4x -y= 6

Rewrite the equation into the slope-intercept form (y=mx+c, where m is the gradient while c is the y-intercept).

-y= -4x +6

y= 4x -6

Thus, gradient of given line= 4.

Since parallel lines have the same gradient, gradient of line= 4.

y= 4x +c

To find the y-intercept of the lone, substitute a pair of coordinates.

When x=5, y=3,

3= 4(5) +c

3= 20 +c

c= 3 -20

c= -17

Thus, the y-intercept of the line is -17.

7 0

3 years ago

Select the property of equality used to arrive at the conclusion. if 1/3 x=5 then x=15 the multiplication property of equality t

REY [17]

If we take both sides of the equation $\frac{1}{3} x=5$ and multiply either expression by 3, the equality becomes

$3\cdot\frac{1}{3}x=3\cdot5\\x=15$

Multiplication of both sides of an equality by the same number keeps the equality true, and we call this property the multiplication property of equality.

3 0

3 years ago

Help me please please!!!!!!!!

vova2212 [387]

Answer:

Step-by-step explanation:

The circumference (C) of a circle is calculated as

C = 2πr ( r is the radius ) , then

C = 2π × 20 = 40π

6 0

3 years ago

What is 12/25 as a percent