Answer:
x = 10
Step-by-step explanation:
Given
x + 2 + x = 22 , that is
2x + 2 = 22 ( subtract 2 from both sides )
2x = 20 ( divide both sides by 2 )
x = 10
By looking at the formula you can see that the quadratic part is 0 if you fill in x=3 (you know, 3-3 = 0). The outcome of the formula then becomes y= 0+5.
That gives us point (3,5) as the top of the parabola. So there you go, answer A.
139 mi 1 km 139 km
--------- * ---------- = -------------- = 11.2 km
20 0.62 mi 12.4
Answer:
Step-by-step explanation:
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It’s 12 cause the smaller triangle is smaller by times 3 so if u multiply all those and the missing one would be 12 cause 4 times 3 is 12