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masha68 [24]
3 years ago
11

I NEED HELP ASAP!!!!

Mathematics
1 answer:
Gennadij [26K]3 years ago
4 0

Answer:

It's be B

Step-by-step explanation:

The equation for arc length is 2piR (angle/360)

Plug in your numbers to get the equation 2pi16km (150/360)

Click enter into the calculator you get 41.887km which rounds to 41.9km

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What are the axis of symmetry and vertex of the quadratic function y=-2x^2-8x+5​
garik1379 [7]

\bf \textit{vertex of a vertical parabola, using coefficients} \\\\ y=\stackrel{\stackrel{a}{\downarrow }}{-2}x^2\stackrel{\stackrel{b}{\downarrow }}{-8}x\stackrel{\stackrel{c}{\downarrow }}{+5} \qquad \qquad \left(-\cfrac{ b}{2 a}~~~~ ,~~~~ c-\cfrac{ b^2}{4 a}\right) \\\\\\ \left( -\cfrac{(-8)}{2(-2)}~~,~~5-\cfrac{(-8)^2}{4(-2)} \right)\implies \left( \cfrac{8}{-4}~~,~~5-\cfrac{64}{-8} \right)\implies (-2~~,~~5+8) \\\\\\ (-2~~,~~13)~\hfill \stackrel{\textit{axis of symmetry}}{x=-2}

recall that the axis of symmetry for a vertical parabola is simply the equation for the vertical line of the vertex's x-coordinate.

3 0
4 years ago
-26=6ₓ help pls step by step
inna [77]

Answer:

-4.33

Step-by-step explanation:

-26=6ₓ

6x = -26

x = -26/6

x = -4.33 or -13/3

8 0
3 years ago
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NEED HELP ASAP !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
masha68 [24]
No because the numbers in the given ratio must be multiplied by the same number. (The third choice)
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