Answer:
10 (8-x)(8+x)
Step-by-step explanation:
640-10x^2
Factor out 10
10 (64 - x^2)
Notice that inside the parentheses is the difference of squares
10 ( 8^2 - x^2) and a^2 - b^2 = (a-b) (a+b)
10 (8-x)(8+x)
A.
The second and first quadrant, because the hour and temperatures are unlikely to be negative numbers. All positive numbers for both X and Y values are in the second quadrant. If the hour is before noon, then the X value will venture into quadrant one. The diagram shows the quadrants in a graph.
B. For both the time and the temperature to be negative, and in quadrant four, you would have to be located in possibly Alaska or northern Canada. In such locations colder areas would be more likely to have negative temperatures and at times before 12.
Answer:
its 33 cm
Step-by-step explanation:
4x + 3y = 26
x = 3/2y + 2
solving for y:
4 (3/2y + 2) + 3y = 26
6y + 8 + 3y = 26
9y + 8 =26
9y = 18
y = 2
solving for x:
x = 3/2(2) + 2
x = 3 + 2
x = 5
done.
**optional: use second equation to check