Answer:
multiply each term in the bracket by the expression outside the bracket
:)
Step-by-step explanation:
Solution
The 1st term = -3
15th term = 53
15th term = a + d(n-1)
53 = -3 + d(15- 1) [Here n = 15)
53 + 3 = d(14)
14d = 56
d = 4
The common difference is 4.
Answer:
See attachment for graph
Step-by-step explanation:
Given

Required
The graph that shows the number of miles in x hours
We have:

Multiply both sides by x


So, the function is:

Let's create this right triangle. We will call it triangle ABC with angle B as the right angle, angle A being the larger of the angles A and C. If the ratio is 5:4, then it is A:C. 5+4 = 9. The measure of the right angle, angle ABC = 90, and 90 divided by 9 is 10. So angle A is 5 * 10 which is 50 degrees, and angle C is 4 * 10 which is 40 degrees. The smallest angle, angle C, is 40 degrees.
The answer to the question is 33%. Hope this helps!