Answer:
Brainleist here!
Step-by-step explanation:
4/5 ^2 + 4/5
16/25 + 4/5
16/25+20/25
36/25
1.44
Answer:
3
Step-by-step explanation:
step1 Isolate the square root on the left hand side
Original equation
√2x-5-4 = -x
Isolate
√2x-5 = 4-x
step2 eliminate the radical on the left hand side
Raise both sides to the second power
(√2x-5)2 = (4-x)2
After squaring
2x-5 = x2-8x+16
step3 Solve the quadratic equation
Rearranged equation
x2 - 10x + 21 = 0
This equation has two rational roots:
{x1, x2}={7, 3}
step4 Check that the first solution is correct
Original equation, root isolated
√2x-5 = 4-x
Plug in 7 for x
√2•(7)-5 = 4-(7)
Simplify
√9 = -3
Solution does not check
3 ≠ -3
step5 Check that the second solution is correct
Original equation, root isolated
√2x-5 = 4-x
Plug in 3 for x
√2•(3)-5 = 4-(3)
Simplify
√1 = 1
Solution checks !!
Solution is:
x = 3
Hello from MrBillDoesMath!
Answer:
9 3/8
Discussion:
2 1/7 = 15/7
4 3/8 = 35/8
so the product
(2 1/7) * ( 4 3/8) =
15/7 * 35/8 =
15/7 * (7 * 5)/8 =
since 35 = 7*5. Cancel "7" in numerator\denominator to get
(15 * 5) / 8 =
75/8 =
9 3/8
Thank you,
MrB
So this in the exponential form of ab^x, where a is the y intercept, b is the growth factor(base) and x is your domain. From this, we can answer each question. The initial amount is 800, growth rate is 32% and factor is 1.32.
Happy learning!
