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Allushta [10]
3 years ago
13

What is the solution to the following equation x^2+5x+7=0

Mathematics
1 answer:
Nat2105 [25]3 years ago
6 0

Answer:

if ypu are looking for the minimum it is ( - 5/2 , 3/4) but if you are looking for the vertical intercept it is ( 0 , 7)

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The function f(t) = t2 + 6t − 20 represents a parabola.
Novay_Z [31]
Part A: f(t) = t² + 6t - 20
              u = t² + 6t - 20
         + 20            + 20
      u + 20 = t² + 6t
u + 20 + 9 = t² + 6t + 9
      u + 29 = t² + 3t + 3t + 9
      u + 29 = t(t) + t(3) + 3(t) + 3(3)
      u + 29 = t(t + 3) + 3(t + 3)
      u + 29 = (t + 3)(t + 3)
      u + 29 = (t + 3)²
          - 29       - 29
              u = (t + 3)² - 29

Part B: The vertex is (-3, -29). The graph shows that it is a minimum because it shows that there is a positive sign before the x²-term, making the parabola open up and has a minimum vertex of (-3, -29).
------------------------------------------------------------------------------------------------------------------
Part A: g(t) = 48.8t + 28           h(t) = -16t² + 90t + 50
            | t |   g(t)  |                          |  t  |  h(t)  |
            |-4|-167.2|                          | -4 | -566 |
            |-3|-118.4|                          | -3 | -364 |
            |-2| -69.6 |                          | -2 | -194 |
            |-1| -20.8 |                          | -1 |  -56  |
            |0 |   -28  |                          |  0  |   50  |
            |1 |  76.8 |                          |  1  |  124 |
            |2 | 125.6|                          |  2  | 166  |
            |3 | 174.4|                          |  3  | 176  |
            |4 | 223.2|                          |  4  | 154  |
The two seconds that the solution of g(t) and h(t) is located is between -1 and 4 seconds because it shows that they have two solutions, making it between -1 and 4 seconds.

Part B: The solution from Part A means that you have to find two solutions in order to know where the solutions of the two functions are located at.
4 0
3 years ago
Read 2 more answers
Simplify<br><br> Will mark brainliest, please show work if possible
Reil [10]
The answer for this question is 8/1

5 0
3 years ago
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A family smoothie recipe calls for strawberry juice and apple juice. This equation represents the proportional relationship betw
Llana [10]

Answer:number of juice and fruits

Step-by-step explanation:

juice and fruits

6 0
3 years ago
How would I solve 11/15 + 3/10 with work please?!
AnnyKZ [126]
First you need to find a common denominator. 11/15 = 22/30

3/10= 9/30

9/30+22/30= 1 1/30

Hope this helps!
7 0
3 years ago
Read 2 more answers
Together, Raquel and Miray can spread the mulch through the yard in 2 hours. Raquel would take 0.8 times as many hours as Miray
melisa1 [442]

Using the together rate, it is found that it would take Miray 4.5 hours to spread the mulch alone.

<h3>What is the together rate?</h3>

The together rate is the <u>sum of each separate rate</u>.

For this problem, the rates are given as follows:

  • Together: 1/2.
  • Miray: 1/x, in which x is the time it would take her to spread the mulch alone.
  • Raquel: 1/0.8x.

Hence, applying the together rate, we have that:

\frac{1}{x} + \frac{1}{0.8x} = \frac{1}{2}

\frac{1 + 1.25}{x} = \frac{1}{2}

\frac{2.25}{x} = \frac{1}{2}

Applying cross multiplication:

x = 2 x 2.25

x = 4.5.

It would take Miray 4.5 hours to spread the mulch alone.

More can be learned about the together rate at brainly.com/question/25159431

#SPJ1

5 0
2 years ago
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