Answer:
B) 15
Step-by-step explanation:
sqrt(6x) = 3 sqrt(10)
Square each side
(sqrt(6x))^2 = (3 sqrt(10))^2
Remember (ab)^2 = a^2 b^2
6x = (3^2) sqrt(10))^2
6x = 9 * 10
6x = 90
Divide each side by 6
6x/6 = 90/6
x = 15
The line tangent to the curve at 
has slope
Then the tangent line has equation
If you are looking for the expanded version, this is it. It is also possible to group either an a from (a^2 + 2b) or a b from (2ab + b^2). Hope this helps!
Answer:
Step-by-step explanation:
- Diameter = 42 inch
- Speed = 25 rpm
<u>Circumference of the tire:</u>
- C = πd = 3.14*42 = 131.88 inches
<u>Distance per minute</u>
- 25 revs = 25C =
- 25*131.88 =
- 3297 inches = 274.75 feet =
- 274.8 feet rounded
Answer:
(-5, -6)
Step-by-step explanation:
The smaller integer is x.
The larger integer is x + 1.
x + 1 = 7 + 2x
-x = 6
x = -6
x + 1 = -6 + 1 = -5
Answer: (-5, -6)
