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2 years ago

5

Help find the measure of the angle indicated!!!?

1 answer:

Alecsey [184]2 years ago

8 0

Answer:

50°

Step-by-step explanation:

$m\angle RST = \frac{1}{2} \times (150\degree - 50\degree) \\\\m\angle RST = \frac{1}{2} \times 100\degree \\\\ \purple{ \bold{m\angle RST =50\degree}} \\\\$

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The height of the tunnel at the center is 35ft, and the vertical clearance must be 21 ft at a point of 8ft from the center. Find

Zinaida [17]

Answer:

y=-0.215x^2+35

Step by Step:

Let, $h=0$ , $k=35$ , $x=8$ , $y=21$

We know that, the general equation of the parabola.

$y-k = a(x-h)^2$

$\Rightarrow y=a(x-h)^2+k .........(i)$

Substitute the value of $h, k, x, y$ in equation $(i)$ and find the value of $a.$

$21=a(8-0)^2+35$

$\Rightarrow 21=a\times 8^2+35$

$\Rightarrow 21=64a+35$

$\Rightarrow 64a=21-35$

$\Rightarrow 64a=-14$

$\Rightarrow a=\frac{-14}{65}$

$\Rightarrow a=-0.215$

Hence, the equation of the parabola is:

$y=-0.215x^2+35$

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2 years ago

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iogann1982 [59]

Answer:

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2 years ago

Complete the solution of the equation find the value of y when x equals negative 30. -2x-3y=42

Rama09 [41]

-2 (-30) - 3y = 42
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3 years ago

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A food pantry is making packages. Each package weighs 64 pounds. Each of their packages contains 4 identical bags of rice and a

Vinil7 [7]

Answer:

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Step-by-step explanation:

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-5 and 2 would work.

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