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Readme [11.4K]
3 years ago
6

New unit i’m confused

Mathematics
1 answer:
photoshop1234 [79]3 years ago
3 0

Answer:

part a is infinite Part b is number 3

Step-by-step explanation:

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The speed of sound in air on a certain stormy day is about 1130 feet per second. You see a flash of lightning striking some dist
Elina [12.6K]

Answer:

distance = 1.5 miles(approx.)

Step-by-step explanation:

given,

speed of sound = 1130 ft/s        

1 ft = 0.3048            

1130 ft/s = 0.3048 × 1130 m/s      

              = 344.424 m/s          

time = 7 second                

distance = speed × time                

distance = 344.424 × 7              

distance = 2410.968 m                    

1 m = 0.0006214 miles                    

2410.968 m =  (0.0006214 ×  2410.968) miles    

distance = 1.498 miles                        

distance = 1.5 miles(approx.)

6 0
3 years ago
Plot the vertex, focus, and directrix for the parabola represented by this equation. X=-1/12(y-2)^2+1
alukav5142 [94]

The vertex of the parabola is (1, 2), focus of the parabola is  (-2, 2), and directrix x = 4.

<h3>What is a parabola?</h3>

It is defined as the graph of a quadratic function that has something bowl-shaped.

We have a parabola equation:

\rm x = -\dfrac{1}{12}(y-2)^2+1

The standard form of the parabola:

\rm x = \dfrac{1}{4(f-h)}(y-k)^2+h

(h, k) is the vertex of the parabola and (f, k) is the focus.

\rm x = \dfrac{1}{4(-2-1)}(y-2)^2+1

h = 1, k =2, and f = -2

The directrix is x = 4

Thus, the vertex of the parabola is (1, 2), focus (-2, 2), and directrix x = 4.

Learn more about the parabola here:

brainly.com/question/8708520

#SPJ1

5 0
2 years ago
The equation v/2 -21=-15 is solved in several steps below.
Arada [10]

Answer:

V/2 - 21 = -15

V/2 - 21 + 21 = -15 + 21

V/2 + 0 = 6

V/2 * 2 = 6 * 2

V = 12

8 0
3 years ago
Sam bought a kite that he could do stunts with for $52. If he
seraphim [82]

Answer:

8.5%

Step-by-step explanation:

8.50% of 52= 4.42

5 0
3 years ago
HELP PLZZZZZZZZ
klio [65]

Answer:

Hewo Asuna here

Your answer is B

Step-by-step explanation:

Hope this helps!

5 0
3 years ago
Read 2 more answers
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