15·x²=15·x so
x²=x
x·x=x with x≠0 than x must be 1
x=1
Answer:
-2
Step-by-step explanation:
y = 3x + 2.5
x = -1.5
y = 3 x -1.5 + 2.5
= -4.5 + 2.5
= -2
Answer: Choice B
They traveled 250 miles in 4 hours. Their speed was 62.5 mph.
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Explanation:
Start at point X. Draw a horizontal line straight across until you reach the y axis. You should arrive at y = 250. This tells us that they traveled 250 miles.
Go back to point X. Draw a vertical line until you reach the x axis. You should reach x = 4. This indicates 4 hours.
Pairing up the two values together means they traveled 250 miles in 4 hours. Divide the distance over time to get the speed
speed = distance/time = 250/4 = 62.5 miles per hour
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Side note: unfortunately your teacher chose the label uppercase X for the point, which may be a bit confusing since it could clash with the lowercase x along the horizontal axis.
Another note: the speed represents the slope of the line
Answer:
C) 15
D) 287
Step-by-step explanation:
If you look up the definition of integers you see:
integer
[ˈin(t)əjər]
NOUN
integers (plural noun)
a whole number; a number that is not a fraction.
"integer values"
a thing complete in itself.
So C and D are correct.
Answer:
Sin M= opposite/hypotenuse, cos M= adjacent/Hypotenuse, tan M= opposite/adjacent
Step-by-step explanation: