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erastovalidia [21]
3 years ago
8

Homework: 6.2_HW

Mathematics
1 answer:
ra1l [238]3 years ago
3 0
Kfkdkdkdkdjdkekdkdjdjd
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40 POINTS TO WHO EVER CAN ANSWER THIS!!!!!
ollegr [7]

Answer:

y = 2.5(x + 2)^2 - 3

The answer is A

Step-by-step explanation:

The general equation for the vertex is

y  =  a (x + b)^2 + c

a we are not certain about

b = 2

c = - 3

y = a(x + 2)^2 - 3 Now we have to solve for a.

a is found by using the one point we know (0,7) It means when x = 0 y = 7 so just put those two numbers in.

7 = a(0 - 2)^2 - 3

7 = a (- 2)^2 - 3       Add 3 to both sides.

7 + 3 = a(4)              Combine 7 and 3

10 = 4a                     Divide by 4

10/4 = a                    Do the actual division    

2.5 = a

Answer: See above

4 0
3 years ago
Read 2 more answers
The power generated by an electrical circuit (in watts) as a function of its current ccc (in amperes) is modeled by P(c)=-15c(c-
Paul [167]

Answer:

240

Step-by-step explanation:

The circuit's power is modeled by a quadratic function, whose graph is a parabola.

The maximum power is reached at the vertex.

So in order to find the maximum power, we need to find the vertex's y-coordinate.

We will start by finding the vertex's x-coordinate, and then plug that into P(c).

The vertex's x-coordinate is the average of the two zeros, so let's find those first.

-15c(c-8)=0, so either -15c or c-8 equals 0, so c=0 or c=8.

Now let's take the zeros' average:

(0+8)/2=4.

The vertex's x-coordinate of this parabola is 4. Now let's find P(4).

P(4)=-15(4)(4-8)

240.

The maximum power of this circuit is 240 watts.

PLEASE MARK BRAINLIEST AND VERTIFIED ANSWER!! I spent a lot of time on this... :P thank you!!

7 0
3 years ago
Find the reciprocal or multiplicative inverse of 0.1
Marina CMI [18]
10/1 or 10 is the answer bbbbbbbbb bbbb
3 0
4 years ago
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How many fluid ounces are there in 3 pints and 4 fluid ounces?
hram777 [196]

Answer:

52 US fluid ounces

Step-by-step explanation:

6 fluid ounces

How many fluid ounces in a pint? There are 16 fluid ounces in a pint.

5 0
3 years ago
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Write a paragraph response to the math prompt. (5-6 complete sentences) Include a topic sentence, supporting sentences and concl
denpristay [2]

Answer:

calculus, geometry, arithmetic among a few

Step-by-step explanation:

Mathematics is involved in winter Olympics in different aspects like arithmetic which helps in scores, measurements, quantities and motion  of the sport  like hockey, running.

Scoring in ice skating involves arithmetic operation when an individual element is assigned points and  judged on performance level( triple axle is 3 points but overall performance and artistry is measured by the judges).  

Another is Calculus  which helps to understand the change in acceleration and velocities while each skaters start at zero then win, Lines in Geometry such as the finish/start/sight lines helps players with angles of reflection, measuring angles and angles of incidence.  

4 0
4 years ago
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