Answer:
+4
Step-by-step explanation:
I think if one proton has+1charge four protons may have+4charges
Answer:
-22
Step-by-step explanation:
f(x) = -x2 + 4x - 9
g(x) = x - 8,
g(f(-1))
First find f(-1)
f(-1) = - (-1)^2 + 4(-1) - 9 = -1 -4-9 = -14
The find g(-14)
g(-14) = -14-8 = -22
Circumference = 2<span>πr = 50.24
2 * 3.14 * r = 50.24
r = 50.24/6.28
r = 8
Now, Area = </span><span>πr</span>² = 3.14 * (8)² = 200.96
In short, Your Answer would be Option D
Hope this helps!
Find the x-intercepts by setting the function equal to 0
0 = 2x^2 - 3x - 2
Factor
2x^2 - 4x + x - 2 = 0
2x(x - 2) + 1(x - 2) = 0
(x - 2)(2x + 1) = 0
x - 2 = 0
x = 2
2x + 1 = 0
2x = -1
x = -1/2
the x-intercepts are at x = -1/2 & 2
5+3(q-4)=2(q+1)
mutiply the first bracket by 3
(3)(q)=3q
(3)(-4)=-12
mutiply the second bracket by 2
(2)(q)=2q
(2)(1)= 2
5+3q-12= 2q+2
5-12+3q= 2q+2
-7+3q= 2q+2
move 2q to the other side
sign changes from +2q to -2q
-7+3q-2q= 2q-2q+2
-7+3q-2q= 2
-7+q= 2
move -7 to the other side
sign changes from -7 to +7
-7+7+q= 2+7
q= 2+7
Answer: q= 9