X/2 is the same thing as 1/2x
X = 9
Move the 1 over to make it 3x = 28. The. 28/3 equals 9
Answer: 3
Step-by-step explanation:
6/8 is the same as 3/4;
there are 3 lots of 1/4 in 3/4
Answer:
4 people will be expected to win the prize
Step-by-step explanation:
Out of 15 people, 5 won a prize
5/15 = simplify into 1/3
1/3 = x/12 Cross multiply
3x = 12 Divide 3 on both sides
x = 4
<h3><u>
<em>Hope this helps!!!</em></u></h3><h3><u>
<em>:)</em></u></h3>
Answer:
f(x) = 2(x -3)² +5 or f(x) = 2x² -12x +23
Step-by-step explanation:
The equation of a quadratic is easily written in vertex form when the coordinates of the vertex are given. Here, the point one horizontal unit from the vertex is 2 vertical units higher, indicating the vertical scale factor is +2.
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<h3>vertex form</h3>
The vertex form equation for a parabola is ...
f(x) = a(x -h)² +k . . . . . . vertex (h, k); vertical scale factor 'a'
<h3>equation</h3>
For vertex (h, k) = (3, 5) and vertical scale factor a=2, the vertex form equation of the parabola is ...
f(x) = 2(x -3)² +5 . . . . . vertex form equation
Expanded to standard form, this is ...
f(x) = 2(x² -6x +9) +5
f(x) = 2x² -12x +23 . . . . . standard form equation
