3 years ago

In which direction will a parabola with the equation y=-3x^2+9 open?

Mathematics

1 answer:

JulsSmile [24]3 years ago

7 0

Downward you can check this by putting this in your graphing calculator

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Find the length of CU, the triangles are similar.

Otrada [13]

Answer:

CU = 117

Step-by-step explanation:

Since the triangles are similar then the ratios of corresponding sides are equal, that is

$\frac{WC}{WU}$ = $\frac{CD}{UV}$

substituting in values to the ratios

$\frac{26}{36x-1}$ = $\frac{24}{132}$ ( cross- multiply )

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x = 4

CU = 36x - 1 - 26 = (36 × 4) - 27 = 144 - 27 = 117

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