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3 years ago

12

If the equation 3 + (-3) + 0 + (-6) + 2 + 1 = -3 is graphed on a number line using arrows, how many arrows will point to the lef

t?
A. 0
B. 1
C. 2
D. 3

1 answer:

Novay_Z [31]3 years ago

3 0

Answer:

the answer is a

Step-by-step explanation:

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The coordinates below represent two linear equations.

vovikov84 [41]

First write the equations in the slope-intercept form:
$y=mx+b \\ \\
m=\frac{y_2-y_1}{x_2-x_1}$

Line 1 passes through the points (-6,-6) and (-4,-3).
$m=\frac{-3-(-6)}{-4-(-6)}=\frac{-3+6}{-4+6}=\frac{3}{2} \\ \\
(-6,-6) \to x=-6, \ y=-6 \\
-6=\frac{3}{2} \times (-6) + b \\
-6=-9+b \\
b=3 \\ \\ y=\frac{3}{2}x+3$

Line 2 passes through the points (0,3) and (2,6).
$m=\frac{6-3}{2-0}=\frac{3}{2} \\ \\
(0,3) \to x=0, \ y=3 \\
3=\frac{3}{2} \times 0 + b \\
b=3 \\ \\
y=\frac{3}{2}x+3$

These are two identical lines so the system of equations has infinitely many solutions. The answer is D.

7 0

3 years ago

Read 2 more answers

Answer???? Angle 1, and angle 2. I need help

REY [17]

M> 1 + m>2 = 90°
x-12 + 5x = 90°
6x - 12 = 90°
6x -12 +12 = 90°+12
6x = 102
6x/6 = 102/6
x = 17

m>1 = x-12
m>1 = 17-12
m>1 = 5

m>2 = 5x
m>2 = 5(17)
m>2 = 85

7 0

3 years ago

A. A car travels 20 m/s and reached its destination in a record time of 10 secs. Calculate the distance

Doss [256]

The car travelled 200 meters

20 m/s times 10 = 200 m in 10 s

8 0

2 years ago

72=8×9 times as many

Alexeev081 [22]

Answer:

9x8=72

Step-by-step explanation:

Your welcome

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3 years ago

Work out the number of boys and girls in the class.

Ne4ueva [31]

Answer:

81

Step-by-step explanation:

27 total of pupils.

girls 1×27=27

boys 2×27=54

total 54+27=81

6 0

2 years ago