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wlad13 [49]
4 years ago
6

Which graph represents the function f (x) = 5 - 5x^2

Mathematics
1 answer:
svetlana [45]4 years ago
6 0
The bottom one is correct
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Quinn leaves her house at 10:00 am and runs 3 miles at a steady pace of 6 miles per
bogdanovich [222]

Using the relation between velocity, distance and time, it is found that Quinn returns home at 1 pm.

Velocity is <u>distance divided by time</u>, that is:

v = \frac{d}{t}

  • She walked <u>3 miles</u> at a velocity of <u>6 miles per hour</u>, thus d = 3, v = 6. The time is:

v = \frac{d}{t}

t = \frac{d}{v} = \frac{3}{6} = 0.5

  • Thus, she arrived at 10:30 am, and took a lunch break of 1 hour, so she started to return at 11:30 am.
  • Distance of <u>3 miles,</u> velocity of <u>2 miles per hour,</u> thus d = 3, v = 2. The time she took to return, in hours, is:

t = \frac{d}{v} = \frac{3}{2} = 1.5

1.5 hours after 11:30 am is 1 pm, thus, Quinn returns home at 1 pm.

A similar problem is given at brainly.com/question/24316569

8 0
3 years ago
What is the simplest form of this expression?<br> 2y^2(-6y + 3) + 4y^3
tatuchka [14]

Answer:

- 8 {y}^{3}  + 6 {y}^{2}

Step-by-step explanation:

2y^2(-6y + 3) + 4y^3 \\  \\  =  - 12 {y}^{3}  + 6 {y}^{2}  + 4 {y}^{3}  \\  \\ = 4 {y}^{3}  - 12 {y}^{3}  + 6 {y}^{2}  \\  \\  =  - 8 {y}^{3}  + 6 {y}^{2}

3 0
2 years ago
Read 2 more answers
The difference of two numbers is 19 and their sum is 121. Find the numbers.​
sashaice [31]
Follow the link below to help you
5 0
3 years ago
If f(x)= 3x-1/4x+2 find f(x-1/ x+2)
Basile [38]

Answer:

The value of this new equation would be (2x - 5)/6x.

Step-by-step explanation:

In order to find the value of this equation, we need to take the original equation and replace every x with (x - 1/x+2).

f(x)= 3x - 1/4x + 2

f(x)= [3(x - 1/x+2) - 1]/[4(x - 1/x+2) + 2]

f(x) = [(3x - 3/x + 2) - (x + 2/x + 2)]/[(4x - 4/x + 2) + (2x + 4/x + 2)]

f(x) = (2x - 5/x+2)/(6x/x + 2)

f(x) = (2x - 5)/6x

5 0
3 years ago
A poster is shown below: what are the dimensions if the poster enlarged by a factor of 7/2
Lilit [14]
If the poster is 6 by 18, and it increases by a factor 7/2, then you multiply both the height and length by 7/2:
6 \times  \frac{7}{2}  = 21 \\ 18 \times  \frac{7}{2}  = 63
Therefore, the new height is 21, and the new length is 63.
8 0
3 years ago
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