Answer:
-19
Step-by-step explanation:
y = -4(-7)+9
= -28 + 9
= - 19
Answer:
R = 2524 quarts/s
Step-by-step explanation:
Water flows through a pipe at a rate of 8600 cubic meters per hour.
We know that,
1 m³ = 1056.69 quarts
1 hour = 3600 s
Rate of flow of water = 8600 cubic meters per hour

or
R = 2524 quarts/s
So, the rate of flow of water is 2524 quarts/s.
Translation is the transformation that preserves parallel lines. This means that if segments MN and OP were parallel, the segments M'N' and O'P' will be parallel too. As it is known parallel lines do not intersect, then options A and C are false.
Translation 2 units to the left has rule:
(x,y)→(x-2,y).
Then points
- M(2,2)→M'(0,2);
- N(5,2)→N'(3,2);
- O(2,1)→O'(0,1);
- P(5,1)→P'(3,1).
The distance between segments MN and OP is 1 unit, the distance between segments M'N' and O'P' is 1 unit too.
Answer: correct option is B.
Answer:
Zhang: 17, Robert: 22
Step-by-step explanation:
Robert's age would be z+5, 2×z+5=39, z=17 So Zhang's age would be 17, and Robert's would be 22