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vitfil [10]
2 years ago
10

Please answer these

Mathematics
1 answer:
lubasha [3.4K]2 years ago
6 0

Answer:

1. 1 hour and 45 mins

2. 3 hours and 25 mins

3. 3 hours and 45 mins

4. 3 hours and 15 mins

5. 3 hours and 30 mins

Step-by-step explanation:

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Rewrite the equation in vertex form. then find the vertex of the graph. y=-3x^2-5x+1
amm1812

Answer: y = -3(x + \frac{5}{6})² + \frac{37}{12}, (-\frac{5}{6}, \frac{37}{12})

<u>Step-by-step explanation:</u>

First, you need to complete the square:

y   = -3x² - 5x + 1

<u> -1  </u>   <u>                -1  </u>

y - 1 = -3x² - 5x

y - 1 = -3(x² + \frac{5}{3}x

y - 1 + -3(\frac{25}{36}) = -3(x² + \frac{5}{3}x + \frac{25}{36})

           ↑                     ↓            ↑

                                  \frac{5}{3*2} = (\frac{5}{3*2})^{2}

y - 1 - \frac{25}{12} = -3(x + \frac{5}{6})²

y - \frac{12}{12} - \frac{25}{12} = -3(x + \frac{5}{6})²

y  - \frac{37}{12} = -3(x + \frac{5}{6})²

y = -3(x + \frac{5}{6})² + \frac{37}{12}

Now, it is in the form of y = a(x - h)² + k   <em>where (h, k) is the vertex</em>

Vertex = (-\frac{5}{6}, \frac{37}{12})

8 0
3 years ago
There is a bag with 50 popsicles inside. 5
Mkey [24]

Answer: \frac{6}{25}

In this case, we're asked to pick one of 12 blue popsicles out of a bag of 50 – from this, we can just write that the probability of picking a blue popsicle is 12/50. Simplifying this, we can divide both the numerator and denominator by 2 to get our final answer of  \frac{6}{25}

Hope this helped you!

Step-by-step explanation:

5 0
3 years ago
Identify the function shown in this graph.
jolli1 [7]

Answer:

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Which is an equivalent expression
Harlamova29_29 [7]

Answer:

the answer to that is the second one, 4^-4

8 0
2 years ago
Pls help will give brainliest and 5 star
jeka94

Answer:

The answers are as follows:

5. c

6. b

7. not sure, sorry

8. b

Step-by-step explanation:


8 0
3 years ago
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