I hope this helps you
2.5. (k+1)=94-4
10. (k+1)=90
k+1=9
k=8
Simplifying
5x + 7 = 2x + 4
Reorder the terms:
7 + 5x = 2x + 4
Reorder the terms:
7 + 5x = 4 + 2x
Solving
7 + 5x = 4 + 2x
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-2x' to each side of the equation.
7 + 5x + -2x = 4 + 2x + -2x
Combine like terms: 5x + -2x = 3x
7 + 3x = 4 + 2x + -2x
Combine like terms: 2x + -2x = 0
7 + 3x = 4 + 0
7 + 3x = 4
Add '-7' to each side of the equation.
7 + -7 + 3x = 4 + -7
Combine like terms: 7 + -7 = 0
0 + 3x = 4 + -7
3x = 4 + -7
Combine like terms: 4 + -7 = -3
3x = -3
Divide each side by '3'.
x = -1
Simplifying
x = -1
Answer:

Step-by-step explanation:
The equation of a parabola in vertex form is
y = a(x - h)² + k
where (h, k) are the coordinates of the vertex and a is a multiplier
here (h, k) = (- 3, - 1), thus
y = a(x + 3)² - 1
To find a substitute (4, 0) into the equation
0 = 49a - 1 ( add 1 to both sides )
49a = 1 ( divide both sides by 49 )
a = 
y =
(x + 3)² - 1
coefficient of the x² term is 
Answer:
3/10 of the whole cake
Step-by-step explanation:
When you divide a cake in halve you get 5 pieces on each side, if Kim ate 3/5 of 1/2 of the cake, then she ate 3 pieces, so she ate 3/10 of the cake, and other way to figure this out is multiplying the two fractions, 3/5 x 1/2 = 3/10