Answer:
10) It increased by appoxamately 17%.
11) 255 decreased by 20%
12) 15 increased by
%
13) $9,450
14) $149.8
15) $238.5
Step-by-step explanation:
10) 170 is greater than 150 by 25. 25 is
% of 150, so it increased by appoxamately 17%.
11) 225 is decreased by 45. 45 is 20% of 100, so 255 decreased by 20%
12) 15 is increased by 10. 10 is
of 15, so 15 increased by
%
13) 5% of 9,000 is 450. 450 + 9,000 is $9,450
14) 7% of 140 is is 9.8. 140 + 9.8 = $149.8
15) 6% of 225 is 13.5. 225 + 13.5 = $238.5
ANSWER
B. (-2,-3)
EXPLANATION
The given equation is

We want determine which of the ordered pairs is a solution to the given equation.
For point A(-3,-2)


This statement is false.
For option B(-2,-3)
We have


For option C(0,4)
We have


For option D(4,0)
We have


This statement is false.
Answer:
A 18
Step-by-step explanation:
f(x) = 4x + 10
f(2) = 4(2) + 10
f(2) = 8 + 10
f(2) = 18
Answer:dy/dt(x=3)=54
Step-by-step explanation:
We know that we can write:

and so evaluate it as a product of functions, that is for a given value of x or t, we get that
.
Now we are told that:
whenever it happens, this means the influence of t is hidden, and we only consider the result, that is, how much is x when the derivative has the value of 2, we are not concerned for what value of t it happens, since we get all the necessary information beforehand.
Now we need to calculate
.
Therefore
or
.
Given that R=130 and S=90. ST are congruent to UT so therefore U=90 and T=50