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kramer
3 years ago
5

PLEASE HELP I NEED TO TURN THIS IN SOON

Mathematics
2 answers:
german3 years ago
5 0
4 feet And 3 Feet
...........................
Dima020 [189]3 years ago
3 0
4 feet and 3 feet ....................
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A new hospital tracked the number of births during its first 6 months of operation, as shown in the table. Find a quadratic func
UNO [17]
Let    x refers to the Month numbers
And  y refers to Number of births

There is 5 steps to find the quadratic function that models the data.

First step           ⇒ <span>Plot <span>the data pairs (<span>x<span>, <span>y<span>) in a coordinate plane.
                              which are the blue circles in the attached figure

Second step     ⇒ </span></span></span></span></span></span><span>Draw <span>the parabola you think best fits the data.
                             Which is the red function in the attached figure.

</span></span><span><span>Third step         ⇒</span> Estimate <span>the coordinates of three points on the
<span>                             parabola, which are (2, 108), (4, 68), and (6, 75).</span>
                             </span></span><span><span>which are the black squares in the attached figure</span>

Fourth step       ⇒ </span><span>Substitute <span>the coordinates of the points into the<span> model <span>
                            y <span>= <span>ax<span>2 <span>+ <span>bx <span>+ <span>c
<span>                            to obtain a system of three linear equations.</span>

                            4a + 2 b + c = 108   ---------(1)
                            </span></span></span></span></span></span></span></span></span></span></span><span><span>16a + 4 b + c = 68   ---------(2)</span>
                            36a + 6 b + c = 75   ---------(3)   

Fifth step   ⇒ </span><span>Solve <span>the linear system.
                      By using the calculator
                      a = 5.875 , b = -55.25 , c = 195

So, the</span></span><span> quadratic model for the data is ⇒ y = 5.875 x²- 55.25 x + 195
============================================
T</span><span>o predict the number of births for month 8
substitute with x = 8 ⇒  y = </span><span>5.875 * 8²- 55.25 * 8 + 195 = 129</span>







3 0
3 years ago
Read 2 more answers
if a tree casts an 8 meter shadow, and the angle from the ground to the tree is 30 degrees, what is the approximate height of th
Virty [35]
Using SohCahToa, we can find the height of the tree. Let the tree height be h. 8m is adjacent to the 30° angle.
\tan(30)  =  \frac{h}{8}  \\ h = 8 \tan(30)  \\ h = 4.62
The answer is A) 4.6 m
3 0
3 years ago
Michael is at driving 50 miles per hour. Which of the following is an equivalent measure of his speed
Blizzard [7]

Answer:5 could be an equivalent measure of his speed

Step-by-step explanation:

6 0
3 years ago
What is the area of the composite figure?
Lyrx [107]

5 • 14 = 70

5 • 12 • 1/2 = 30

30 + 70 = 100

The answer is 100.

Hope this helps!

If it does then I would appreciate it if you could make me brainliest.

7 0
3 years ago
Madeline found that the experimental probability of her scoring from a
Eduardwww [97]

Answer:

6 points

Step-by-step explanation:

  1. 1/10=x/20
  2. cross multiply the x with the 10 and the 20 with the 1 so that you are now left with the fraction 10x/20
  3. 10x divided by 20 will give you x=2
  4. to check and make sure this is still equivalent with the 10% of shots Madeline makes divide 2/20
  5. Since this is still 10 percent Madeline makes 2 out of every 20 shots
  6. Multiply those 2 shots by three points since it was from the three point line and we get 6 points

Hope that helps :)

3 0
3 years ago
Read 2 more answers
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