answer is (-7,2)
y = -x -5
y= x+9
Both equations have y on the left hand side
So we equate both equations
We replace -x-5 for y in the second equation
-x -5 = x+9
Subtract x on both sides
-2x -5 = 9
Now add 5 on both sides
-2x = 14
Divide by -2 from both sides
x = -7
Now plug in -7 for x in the first equation
y = -x -5
y = -(-7) -5= 7-5 = 2
So answer is (-7,2)
A = √(15²-9²) = √(225-81) = √144 = 12
Answer:
13 bags
Step-by-step explanation:
Area of the lawn: A=lw
w= 64 ft
P= 2(l+w)= 278 ft ⇒
bags of seed required:
- 4800/384= 12.5 so 13 full bags needed
Answer:
2 sqrt(2x-1)
Step-by-step explanation:
f(x) = sqrt( x+9)
g(x) = 8x-13
f(g(x))
place the function g(x) in for x in f(x)
f(g(x)) = sqrt(8x-13+9)
Combine like terms
f(g(x)) = sqrt(8x-4)
Factor out 4
f(g(x)) = sqrt(4*(2x-1)
2 sqrt(2x-1)
Hello from MrBillDoesMath!
Answer:
Interest paid = $ 1,713,568.73
Monthly p[payment = $4913.25
Discussion:
From the "compound interest formula:
A = final amount
P = Initial amount (Principal)
r = yearly interest rate
n = number of years of accumulation.
In our case,
A = 350000( 1 + .052)^35 =
350000 (5.90) = (approx)
$2,063,568.73
Interest = $2,063,568.73 - 350000 = $ 1,713,568.73
There are 35 *12 = 420 months in 35 years. So the monthly payment would be ($2,063,568.73 / 420) = $4913.25
Thank you,
MrB
