Answer:
A is the answer
vertically stretched by a factor of 2
Step-by-step explanation:
f(x) = √x and f(x) = 2√x
Since |a| = 2 > 1. The line f(x) = 2√x is vertically stretched by a factor of 2
from f(x) = √x
Answer is A
Answer:
1 hour after they leave
Step-by-step explanation:
The distance each travels is proportional to its speed. The given speeds are at right angles to each other in a 5:12 ratio. The Pythagorean theorem tells you the hypotenuse of such a right triangle will have length ...
√(5²+12²)=√169 = 13
That is the speeds are in the ratio 5:12:13, where 13 represents the relative separation speed. Actual speeds are then 50 mph : 120 mph : 130 mph.
So the distance between the boat and steamer will be increasing at 130 mph. The distance will be 130 miles after 1 hour.
Let S be Sam's age and b be his brother's age
"8 exceeds" tells us that 8 is greater than the quotient
8 > s/b
The answer is A
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