20^2 = 16^2 +x^2
400= 256+ x^2
x^2 = 400 -256
x = 144^1/2
=12
b. yes
Answer: 
Step-by-step explanation:
Given: Emelina wrote the equation of a line in point-slope form as shown below.

To write the equation in intercept form, first we multiply 3 inside the bracket values in the right side , we get

Now, subtract 4 from both sides , we get

Hence, Emelina’s equation in slope-intercept form : 
Answer:
x = 8
Step-by-step explanation:
2x -3 = 13
+3 +3
2x = 16
--- ---
2 2
x = 8
I personally think it is <span>f(t) = 17.5 sin (π/4)(-t+6) + 17.5 </span>
Answer:
b = 320
Step-by-step explanation:
a + b = 880
1 - 4/7 = 3/7 (restant A)
1 - 1/4 = 3/4 (restant B)
(3/7) . a = (3/4) . b
a = (7/4) . b
a + b = 880
(7/4) . b + b = 880
7b + 4b = 880 . 4
11 b = 880 . 4
b = 320