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Lady bird [3.3K]
2 years ago
8

The number of patients treated at Dr. Frank's dentist office each day was recorded for nine days: 18, 19, 19, 4, 14, 8, 22, 3, 1

. Using the given data, find the mean for this sample.
Mathematics
2 answers:
Annette [7]2 years ago
7 0
18+19+19+4+14+8+22+3+1 = 108
108 divided by 9 is 12
your mean is 12
ludmilkaskok [199]2 years ago
6 0

Answer:

12

Step-by-step explanation:

To find the mean, add up all the numbers

18+ 19+ 19+ 4+14+ 8+ 22+ 3+ 1

108

Then divide by the number of terms

108/9 =

12

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Height
dem82 [27]

Answer:

<h3>1 secs</h3>

Step-by-step explanation:

Given the height of the discus can be modeled by the equation y=−16x ^2 +32x+4, where y represents the  height in feet of the discus in seconds, the velocity of the discus at its maximum height is zero.

Velocity v = dy/dx = 0

dy/dx = -32x + 32

0 = -32x + 32

32x = 32

x = 1 secs

Hence it will take the discus 1 secs to reach its maximum height

8 0
3 years ago
The first step in the process for factoring the trinomial x2-3x - 40
Alexxx [7]
We need two numbers that when multiplied will give you -40 and when added will give you -3:
(x+5) (x-8) this is your answer. And you want to know the process Here it goes. And attached is a chart I made you so you can visually see what this process is telling you:
1) identify a,b, and c in the trinomial ax^2 + bx+c (in your case it's 1x^2-3x-40= x^2-3x-40)
2) write down all factor pairs of c (numbers that multiplied produce -40)
3) identify which factor pair from the previous step sums up to b
4) Substitute factor pairs into two binomials
3 0
3 years ago
Solve this for the brainlist
ella [17]

Answer:

22.4

Step-by-step explanation:

using altitude theorem, the height of the triangle is 20

let y = height

10/y = y/40

y² = 400

y = \sqrt{400} or 20

Now we can us the Pythagorean Theorem to find 'x':

10² + 20² = x²

100 + 400 = x²

x=\sqrt{500} ≈ 22.4

8 0
2 years ago
Henry and Gavin are marking exam papers. Each set takes Henry 36 minutes and Gavin 1 hour. Express the times Henry and Gavin tak
sp2606 [1]

Answer:

3:5

Step-by-step explanation:

because

36:60

divide by 6

6:10

divide by 2

3:5

7 0
2 years ago
Hector's income is 78,000 dollars per year (52 weeks).<br><br> How much money does he make weekly?
goldfiish [28.3K]

Answer:

<u>1,500.00</u>

Step-by-step explanation:

Assuming 52 weeks in a year, you would make $1,500.00 per week.

8 0
3 years ago
Read 2 more answers
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