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Mandarinka [93]
3 years ago
6

a new smart phone application is available for download the number y of downloads can be modeled by the function y-6.3x^2+3000

Mathematics
1 answer:
kifflom [539]3 years ago
4 0

Answer:

Graph the parabola using the direction, vertex, focus, and axis of symmetry.

Direction: Opens Up

Vertex:  

(

0

,

−

3000

)

Focus:  

(

0

,

−

2999.9

¯¯¯¯¯¯¯¯¯¯¯¯

603174

)

Axis of Symmetry:  

x

=

0

Directrix:  

y

=

−

3000.0

¯¯¯¯¯¯¯¯¯¯¯¯

396825

x

y

−

2

−

2974.8

−

1

−

2993.7

0

−

3000

1

−

2993.7

2

−

2974.8

Step-by-step explanation:

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Is it mathematically correct to say that:
Step2247 [10]

Answer: Yes

Step-by-step explanation:

    Since the numerator is multiplying square root 13 by square root 2, we can break them apart.

\displaystyle \frac{\sqrt{13*2}}{\sqrt{13}} =\frac{\sqrt{13}*\sqrt{2}  }{\sqrt{13}}

   You are correct, \sqrt{13} over  \sqrt{13} is equal to one, so we can "cancel them out" of our expression.

\displaystyle \frac{\sqrt{13} }{\sqrt{13}} = 1

   This leaves us with: \sqrt{2}<em />

<em />

<em>We can also test this by using a calculator:</em>

<em />\frac{\sqrt{13*2}}{\sqrt{13}} \approx 1.41421356\\\sqrt{2} \approx 1.41421356\\1.41421356=1.41421356

8 0
3 years ago
Simplify 4x + 8 + 2x − 7.
Nookie1986 [14]

Answer:

6x+1

Step-by-step explanation:

1. Add the x

4x+2x=6x

2. Add the numbers

8-7=1

3. Add everything

6x+1

Hope this helps!

8 0
3 years ago
Read 2 more answers
there are 36 green, 22 white,30 purple, and 14 blue gumballs in the gumball machine. what is the probability of getting a white
soldier1979 [14.2K]
Total = 102
probability of getting a white gumball
= 22/102


4 0
2 years ago
PLEASE HELP 7TH GRADE MATH
stiks02 [169]

Answer:

2) 7.4 meters per second

Step-by-step explanation:

I divided 400 meters by 54 seconds

4 0
3 years ago
A is 2 feet tall and grows at a rate of 25 inches per year
Arturiano [62]

Answer:

10 years for b and 3 years for a

Step-by-step explanation:

you have to find the common mutiples of 25 and 9, once you do you have to find the common one, the ones that are the same. and then count how many times you jump counted.

25:  25, 50, 75, 100, 125

9: 9, 18, 27, 36, 45, 54, 64, 73, 82, 91, 100

6 0
4 years ago
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