Answer:
b)−2° C
Step-by-step explanation:
hello! To solve this problem you should remember how are the operations with negative numbers, for this the only thing we must do is make a subtraction between the initial temperature (8° C) and the negative change of temperature (10° C)
Ti= initial temperature =8° C
ΔT= temperature change =10° C
new temperature=Ti-ΔT
new temperature=8° C-10° C=-2° C
in conclusion the answer is -2° C
ANSWER
The equation is

EXPLANATION
The equation of the line that passes through the point (-1,3) and (1,4) can be found using the formula,

where


is the slope and

is a point on the line.
The equation of the line becomes,

Multiply through by 2 to get,.

Or
Remark
Write down all the trenches, add them together, divide by 4.


Answer
The average depth is - 32148 to the nearest foot.
You said that A = (s-2) 180
Divide each side by 180 : A/180 = s-2
Add 2 to each side: A/180 + 2 = s
1. 7 pi means 7×180=1260
1260÷4= 315
Answer is D
2. arc length
3. radian is invovling pi
75= pi/180= 5pi/12