Answer:
f(2) = 729
Step-by-step explanation:
f(x) = 3^(x + 4)
Let x =2
f(2) = 3^(2 + 4)
f(2) = 3^(6)
f(2) = 729
400 because I said so and u are asking me is here is the answer
Answer:
25;41;8;21
Step-by-step explanation:
a) 48=d+23
48-23=d
d=25
b) W-13=28
28+13=W
W=41
c) 9x=72
72/9=x
x=8
d) 84=4n
n=84/4
n=21
Answer:
Number 1 and Number 4
Step-by-step explanation:
By factoring, you can figure out the roots (x = -2 or x = 2)...
1. x^2 - 4 = 0
--> (x + 2)(x - 2) = 0
--> x = -2, x = 2
2. x^2 + 4 = 0
--> factors weirdly, so I won't write it. You'd have to use the quadratic formula.
3. 3x^2 + 12 = 0
--> 3 (x^2 + 4) = 0
--> factors weirdly (same as above)
4. 4x^2 - 16 = 0
--> 4 (x^2 - 4) = 0
--> 4 (x+2) (x-2) = 0
--> x = -2, x = 2
5. 2 (x-2) 2 = 0
--> x = 2
Answer:
2
Step-by-step explanation:
2x+2=?x+13
Let x=2
2x+2=2x+13
Subtract 2x from each side
2 =13
This is never true so there is no solution