Y = -X + 7
Y = .5(X-3)2
Alright check it out. Substitute the Y in the second equation for the first equation so...
-X + 7 = .5(X-3)2
After this, you have to get rid of the .5 and the 2 which is easy peasy because they just cancel out. If you were to multiply by half and then multiply by 2 then you'd be back to where you started. So...
-X + 7 = X - 3
Move the X to combine them on one side, I moved the -X to the opposite side by adding X to each side so you get...
7 = 2X - 3
You then add 3 to both side so...
10 = 2X
Divide by 2
X = 5
So...
Y = -5 + 7
Y = 2
Y = .5(5-3)2
Cancel out the .5 and the 2
Y = 5-3
Y = 2
(5,2) is your answer
Answer:R = 9.1667%/year
Step-by-step explanation:
Solving our equation
r = 330 / (3600 × 1) = 0.09166667
r = 0.09166667
converting r decimal to a percentage
R = 0.09166667 × 100 = 9.1667%/year
The interest rate required to
accumulate simple interest of $330.00
from a principal of $3,600.00
over 1 years is 9.1667% per year.
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Both b and c
I hope it helped u
Answer:
A. $3
Step-by-step explanation:
20 × 15% =
20 × 15/100 =
20 × 3/20 = 60/20 = 3
The image of the triangle is missing, so i have attached it.
Answer:
x = 26.2 cm
Step-by-step explanation:
To find the value of x, we will use cosine rule;
x² = 15² + 18² - 2(15 × 18)cos105
x² = 225 + 324 - 540(-0.2558)
x² = 549 + 138.132
x² = 687.132
x ≈ 26.2 cm