Answer:
The submarine would be 179 feet below sea level
Step-by-step explanation:
m = 7
13 x 7 = 91
-270 + 91 = -179
2x + 5y = 20
5y = -2x + 20
y = -2/5x + 4. The slope here is -2/5. A perpendicular line will have a negative reciprocal slope. To find the negative reciprocal of -2/5, we flip the slope and change the sign. So our perpendicular line will have a slope of 5/2.
y = mx + b
slope(m) = 5/2
(10,-4)....x = 10 and y = -4
now we sub and find b, the y int
-4 = 5/2(10) + b
-4 = 25 + b
-4 - 25 = b
-29 = b
so our perpendicular equation is : y = 5/2x - 29 <==
R = C / (2 * pi)
r = 125.6 / (2 * 3.14)
r = 125.6 / 6.28
r = 20 <== the radius
diameter of a circle is twice the radius......2 * 20 = 40 <== diameter
Answer:
well that is a pretty good deal i might have to go there
Step-by-step explanation:
Answer:
85 is the answer because it goes down by 3.5.
Step-by-step explanation:
100-.5=99.5, 99.5-1=98.5, 98.5-1.5=97, 97-2=95, 95-2.5=92.5, 92.5- 3= 89.5, 89.5-3.5=85, then 85-4=81, then so on.