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makvit [3.9K]
3 years ago
9

What is the vertex of the quadratic function below?

Mathematics
1 answer:
mina [271]3 years ago
3 0

y =  - 3 {x}^{2}  - 12x + 17 \\ x_0 =  \frac{ - b}{2a }  =  \frac{12}{ - 6}  =  - 2 \\ y_0 =  - 3 \times  {( - 2)}^{2}  - 12 \times ( - 2) + 17 = 29

Maybe i did something wrong, maybe your question is incorrect, but the vertex is (-2; 29)

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could you possibly help me with this question? (its not part of a graded assignment, just a review from an online course of mine
Virty [35]

Let:

x = Pounds of walnuts in the mix.

Each pound of walnuts costs $0.80. thus x pounds of walnuts cost 0.8x dollars.

Each pound of cashews costs $1.25 and the mix will contain 8 pounds of cashews, so the cost is 8*$1.25 = $10

The total cost of the mix is, therefore: 0.8x + 10 dollars.

We are also given the pound of mix costs $1.00 and we have a total of 8 + x pounds, so the total cost of the mix is 1*(8 + x) dollars.

Equating both costs:

0.8x + 10 = 1*(8 + x)

Operating:

0.8x + 10 = 8 + x

Subtracting x and 10:

0.8x - x = 8 - 10

Simplifying:

-0.2x = -2

Dividing by -0.2:

x = -2/(-0.2)

x = 10

Answer: 10 pounds

8 0
1 year ago
One box of cake mix makes a maximum of 24 cupcakes. A caterer needs 300 cupcakes for an event.
krek1111 [17]
We are given the data that in each box of cupcakes the capacity is a maximum of 24. There are 300 cupcakes required. Hence the number of boxes needed is 300 cupacakes/ 24 cupcakes/ box. The answer is equals to 12. 5. Since there is no such thing as 0.5 box, the answer is rounded up to C. 13
5 0
3 years ago
A person takes up 24 inches of space on a stadium bleacher. If one row of bleachers is 150 feet long and there are 20 rows of bl
Feliz [49]

Answer:

1,500 people

Step-by-step explanation:

Remember that

1\ ft= 12\ in

Convert ft to in

150\ ft=150*12=1,800\ in

<em>Divide the length of a row by the space occupied by one person</em>

1,800/24=75\ persons

<em>Multiply by the number of rows to determine the total people that can fit into the stands</em>

75(20)=1,500\ people

3 0
3 years ago
Find the lowest common denominator of p+3/p2+7p+10 and p5/p2+5p+6
Sunny_sXe [5.5K]
(P+1)(p+2)(p+5) is LCM
4 0
3 years ago
Read 2 more answers
3
julsineya [31]

Answer:

In order to ride on the ride an individual must be at least 4 feet tall.

This means that the individual must be equal to 4 ¾ feet tall.

h = 4 ⅓

and the individual could be greater than 4¾ feet tall.

h > 4 ¾

So the individual could be greater than and equal to 4¾ feet tall.

h ≥ 4¾

4 0
3 years ago
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