In a lab, a substance was heated by 12 degrees over a period of 2 hours at a constant rate. What was the change in temperature each hour?

by definition, an arc subtended by a central angle of some given measure has the same measure. so .

a - base

b - exponent

so,

d. 145*2 is 290 than the total angle is 360 then minus 290 then divide by two

the area of the rectangle is 35units^2.

step-by-step explanation:

graph it and find the distance.

it is a 5*7 rectangle.

therefore the area is 35units^2.