Answer:
Step-by-step explanation:
sorry the Y isn't under the 5 anyway hope this helped
Answer:
9x+10-5z
Step-by-step explanation:
(9x + 3) – (5z - 7)
9x+3-5z + 7)
<u>9x+10-5z</u>
20. (2) 14
A perfect square trinomial will factor into two expressions that are the same, for example: x^2 + 6x + 9 = (x + 3)(x + 3). Since this problem has a C value of 49, it will factor into (x + 7)(x + 7). 7 doubled is 14, therefore one possible value of B is 7.
21. (4) 2, -12
x^2 + 10x + 25 = 24 + 25
(x + 5)^2 = 49
x + 5 = +/- 7
x = 2, -12
22. (3) 3 + sqrt(17)
x^2 - 6x = 8
Complete the Square
x^2 - 6x + 9 = 8 + 9
(x - 3)^2 = 17
x - 3 = +/- sqrt(17)
x = 3 + sqrt(17), 3 - sqrt(17)
23. (1) 1, -5
x^2 + 4x - 5 = 0
x^2 + 4x = 5
x^2 + 4x + 4 = 5 + 4
(x + 2)^2 = 9
x + 2 = +/- 3
x = 1, -5
Hope this helps!
I think 6 is b 7 is c 8 is a 9 is b 10 is d hope this helps not 100% sure but i think it is.
Answer:
9 years 7 months
Step-by-step explanation:
I believe we're to find how long it took.
The interest on the money is $8865 - $6000 = $2865
Interest = P x t x r
P is the principal money $6000
t is time in years
r is the rate 5% = 0.05
Equating, we have
2865 = 6000 x t x 0.05
2865 = 300t
t = 2865/300 = 9.55 yrs
Approximately 9 years 7 months
