Answer:
33.3%
Step-by-step explanation:
Let's say the percent change is x%. Then the equation is:
30 + x% * 30 = 40
Subtract 30 from both sides:
x% * 30 = 10
Divide by 30:
x% = 10/30 = 1/3
Remember that % simply means "out of 100", so:
x/100 = 1/3
Multiply both sides by 100:
x = (1/3) * 100 = 33.3%
Answer:
9: not congruent AB=-8 and CD=10
10: not congruent AC=-3 and BD=5
11: congruent BC=1 and AD=1
Answer:
y = 2x
Step-by-step explanation:
Formula is y = mx + b
m is slope
slope = (4 - -2) / (2 - -1) = 6 / 3 = 2
Now equation is y = 2x + b
To find b, substitute one of the coordinates in the equation. Let's use (2,4)
y = 2x + b
4 = 2(2) + b
b = 0
So equation is y = 2x
Answer:
its C
Step-by-step explanation:
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