Answer:x^2=2^2+4^2. x=4.47
Step-by-step explanation:
Opposite=m=2
Adjacent=n=4
Hypotenuse=x
x^2=m^2+n^2
x^2=2^2+4^2
x^2=4+16
x^2=20
x=√20
x=4.47
Define
v = value after t years.
Therefore the linear model is
v = mt + c
where
m = depreciation rate
t = years since purchase
c = constant
When t=0, v = 20,000, therefore
20000 = m(0) + c
c = 20000
When t=10, v = 2000, therefore
2000 = 10m + 20000
-18000 = 10m
m = -1800
Answer:
The linear model is
v = -1800t + 20000
Answer:
1.488
Step-by-step explanation:
Let x be the price of a veggie wrap and y be the price of an apple.
2x + 3y = 6.24 [EQUATION 1]
3x + 2y = 6.64 [EQUATION 2]
[You need 2 equations for this question because there are 2 unknowns, the prices of a veggie wrap and an apple.]
[You can use elimination or substitution to calculate the equations. I'll just use elimination]
ELIMINATION:
[EQUATION 1 * 3] - [EQUATION 2 * 2]:
(2x + 3y)*3 - (3x + 2y)*2 = (6.24*3) - (6.64*2)
6x + 9y - 6x - 4y = 18.72 - 13.28
5y = 5.44
y = 1.088
[since y is the price of an apple and NOT a veggie wrap, you still need to find x]
sub (substitute) y = 1.088 into [EQUATION 1]
2x + 3(1.088) = 6.24
2x = 6.24 - 3.264
x = 1.488
An apple costs 1.088 and a veggie wrap costs 1.488.
V=317.53
in order to find the volume of a cylinder you use the formula V= (pi) (radius)^2 (height)
in this problem the diameter was 6.36 but you need the radius so you just divide 6.36 in half and you'll get 3.18
first you plug in the radius and height into the formula so it'll look like this V= (pi) (3.18)^2 (10) and get the answer which would be 101.12 then you times that by pi which is 3.14 and you will get 317.53 which is your answer
