Answer:
Answers for 19, 20, 22, 24, and 25.
Step-by-step explanation:
19. 23x - 16 + 8x - 21 = 180
x = 7
23 (7) - 16 = 7y - 23
y = 24
20. 10x -17 = 8x + 1
x = 9
6y + 29 + 73 = 180
y = 13
22. 8x - 35 + 6x - 5 + 3x - 1 = 180
x = 13
24. m<R is 74
m<Q is 32
25. m<E is 37
m<G is 37
I didn't know the answers for all, but I hope this helps in some way!
I think the top right 1 is linear
Top left is neither and bottom is exponential
Answer:
This test batch can be chosen in 2380 ways
Step-by-step explanation:
The order in which the batteries are chosen is not important. So we use the combinations formula to solve this question.
Combinations formula:
is the number of different combinations of x objects from a set of n elements, given by the following formula.

In how many ways can this test batch be chosen?
4 batteries from a set of 17. So

This test batch can be chosen in 2380 ways
10(the number of tests) divided by 5(the amount of weeks)=2. That is 2 tests every week. 2x7 weeks is 14 tests.
Or this could be a trick question and he could have only had tests for 5 weeks.
Answer:
1. Corresponding Angles
2. Alternate Interior Angles
3. Alternate Exterior Angles
4. If <a=25 then <h will equal 25 because they are congruent