Answer:
Step-by-step explanation:
We need a system of equations for this. The first sentence in the problem tells us the first equation. "Sum" means we are adding, "is" means equals. Therefore, the first equation is
x + y = 10.3
The second sentence tells us the second equation. "Difference" means to subtract. Therefore, the second equation is
x - y = 2.84
It would be best to solve this by elimination (also called addition). Line them up one over the other so the variables also line up:
x + y = 10.3
x - y = 2.84
And as you see, when you add straight down, the y's eliminate each other, leaving us with
2x = 13.14 and divide by 2 to get that
x = 6.57
Now plug that in for x to solve for y in either one of the equations. I'll use the first one:
6.57 + y = 10.3 so
y = 3.73
<u>Answer:</u>
The height of the cylinder is 12.1 cm approximately.
<u>Step-by-step explanation:</u>
Given:
The volume of a right cylinder = 7,448 cubic centimeters.
The diameter of the base of the cylinder = 28 centimeters.
To find:
The height(in centimeters)of the cylinder=?
Solution:
we know that, volume of cylinder = πr2h .....................(1)
where
r is radius of base
h is height of the cylinder.
Here, in our problem,
volume= 7448 cubic cm ,
![radius = \frac{diameter }{2}= \frac{28}{2} = 14 cm](https://tex.z-dn.net/?f=radius%20%3D%20%5Cfrac%7Bdiameter%20%7D%7B2%7D%3D%20%5Cfrac%7B28%7D%7B2%7D%20%3D%2014%20cm)
Substituting these values in the equation(1)
![7448 = \pi \timesx (14)^2 h](https://tex.z-dn.net/?f=7448%20%3D%20%5Cpi%20%5Ctimesx%20%2814%29%5E2%20h)
![h = \frac{7448}{196}\times\pi](https://tex.z-dn.net/?f=h%20%3D%20%5Cfrac%7B7448%7D%7B196%7D%5Ctimes%5Cpi)
height=12.09
1. I believe c is correct.
7.666... is less than 7.67
2. The answer is d
He runs less than 60 miles
Answer:
D. The graph of g(x) is shifted 4 units right and 5 units down.
Answer:
t = d/V
Step-by-step explanation:
V = d/t
Multiply each side by t
Vt = d/t *t
Vt = d
Divide each side by V
Vt/V = d/V
t = d/V