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crimeas [40]
3 years ago
14

WhAts the answer and how to solve it?

Mathematics
1 answer:
spayn [35]3 years ago
6 0
General formula of parabola is 
y= ax² + bx +c.

We can substitute values of x and y, using coordinates of 3 points, and we will get 3 equations. We need to find values of a, b and c.

1) (0,1)
y= ax² + bx +c
1= a*0² + b*0+c
c=1

2) y= ax² + bx +1
(-1,6)
6=a(-1)² +b(-1)+1
6=a-b+1
a-b=5

3) y= ax² + bx +1
(2,3)
 3= a*2² + b*2 +1
4a+2b=2
2a+b=1

4) a-b=5
<span>+2a+b=1
</span>
  3a    =6
    a    =2
5) a-b=5
    2-b=5
       b=-3

6) a=2, b=-3, c=1
y= ax² + bx +c
y= 2x² - 3x +1

Answer is D) y= 2x² - 3x +1.

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Subtract. Write your answer in simplest form. 5^3/4 - 2^11/12
Sav [38]
Here, As the exponent and base both are different, we can't simply it by using any mathematical rule, so we have to convert them into decimal then comparing with options.

So, <span>5^3/4 + 2^11/12

= 3.34 - 1.88

= 1.46

Which is most precise to </span><span>2^7/12 </span><span>= 1.49

In short, Your Answer would be: Option D

Hope this helps!</span>
4 0
3 years ago
You roll a fair 6 sided die what is P roll less than 4
Veseljchak [2.6K]

Answer:

1/2

Step-by-step explanation:

Die : 1,2,3,4,5,6

Less than 4: 1,2,3

P (less than 4) = Number of options less than 4/ total

                        = 3 /6

                         =1/2

7 0
4 years ago
How to find the slope of the line containing the pair of points?
Andru [333]
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y2-y1
--------
x2-x1
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3 0
4 years ago
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6 x 100 = 600
0.9 x 100 = 90
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3 0
4 years ago
Read 2 more answers
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