Mr. Davis drives 381 miles in six hours
Remark
I'm going to interpret this equation as
D = ut + kt² The only difference is the 2.
Solution
Subtract kt² from both sides.
D - kt² = ut Now divide by u on both sides.
![\dfrac{D - kt^2}{t} = \dfrac{ut}{t}](https://tex.z-dn.net/?f=%5Cdfrac%7BD%20-%20kt%5E2%7D%7Bt%7D%20%3D%20%5Cdfrac%7But%7D%7Bt%7D)
The t's cancel out. on the right. You are left with u on the right.
![\dfrac{D - kt^2}{t} =\text{u}](https://tex.z-dn.net/?f=%5Cdfrac%7BD%20-%20kt%5E2%7D%7Bt%7D%20%3D%5Ctext%7Bu%7D)
Answer:
Step-by-step explanation:
Diameter = 18cm
18 / 2 = Radius
Radius = 9cm
Formula: A=2πrh+2πr^2
2 x pi x 9 x 0.3 + 2 x pi x 9^2 = 525.90261
Nearest hundredth = 525.90
Answer:
![C = 28.9](https://tex.z-dn.net/?f=%20C%20%3D%2028.9%20)
Step-by-step explanation:
Given the right angled triangle, ∆BCD, you are required to find the measure of angle C.
Apply the trigonometric ratio formula to find m < C.
Adjacent side = 7
Hypotenuse = 8
Trigonometric ratio formula to apply would be:
![cos(C) = \frac{7}{8}](https://tex.z-dn.net/?f=%20cos%28C%29%20%3D%20%5Cfrac%7B7%7D%7B8%7D%20)
![cos(C) = 0.875](https://tex.z-dn.net/?f=%20cos%28C%29%20%3D%200.875%20)
![C = cos^{-1}(0.875)](https://tex.z-dn.net/?f=%20C%20%3D%20cos%5E%7B-1%7D%280.875%29%20)
![C = 28.9](https://tex.z-dn.net/?f=%20C%20%3D%2028.9%20)
(To nearest tenth)
Answer:
![m=-3](https://tex.z-dn.net/?f=m%3D-3)
Step-by-step explanation:
- Choose 2 points on the graph. (-2,8) (3,-7)
- Apply slope formula.
![m=\frac{rise}{run} =\frac{y2-y1}{x2-x1} \\\\\frac{-7-(8)}{3-(-2)} = \frac{-15}{3} =-3\\\\m=-3](https://tex.z-dn.net/?f=m%3D%5Cfrac%7Brise%7D%7Brun%7D%20%3D%5Cfrac%7By2-y1%7D%7Bx2-x1%7D%20%5C%5C%5C%5C%5Cfrac%7B-7-%288%29%7D%7B3-%28-2%29%7D%20%3D%20%5Cfrac%7B-15%7D%7B3%7D%20%3D-3%5C%5C%5C%5Cm%3D-3)
I hope I choose the right cordinates...