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Llana [10]
2 years ago
6

If a sample mean is 92, which of the following is most likely the range of possible values that best describes an estimate for t

he population mean?
A. (80, 112)
B. (82, 114)
C. (76, 108)
D. (78, 110)​
Mathematics
1 answer:
alexdok [17]2 years ago
6 0

Answer:

I think it's c. (76,108)

Step-by-step explanation:

because 76+108 = 184 - half of which is the mean

so c. is more likely

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What is 5(2x - 7) = step by step equation need please and thank you
stepladder [879]
5(2x-7)
= (5)(2x+-7)
= (5)(2x)+(5)(-7)
= 10x - 35
3 0
3 years ago
H=-16t^2+46t+6 after how many seconds will the ball hit the ground?
ANEK [815]
Ball hit the ground is when the function equals zero
0=-16t^2+46t+6
we can't factor so use quadraticformula

for
ax^2+bx+c=0
x=\frac{-b+/- \sqrt{b^2-4ac} }{2a}
x=\frac{-46+/- \sqrt{46^2-4(-16)(6)} }{2(-16)}
x=\frac{-46+/- \sqrt{2116+384} }{-32}
x=\frac{-46+/- \sqrt{2500} }{-32}
x=\frac{-46+/- 50 }{-32}
x=\frac{-46+ 50 }{-32} or \frac{-46- 50 }{-32}
x=\frac{4}{-32} or x=\frac{-96}{-32}
x=-1/6 or x=3

we cannot have negative time because time starts at 0
disregard -1/6 as a possible answer


answer is after 3 seconds

4 0
3 years ago
This table shows temperatures in an Arctic city during
ioda

According to the temperature changes, it is found that:

  • On Tuesday, the temperature at Noon was of -28.5 ºF.
  • On Wednesday, the temperature at Midnight was of -5.5 ºF.
  • On Thursday, the change was of -11.8 ºF.
  • On Friday, the temperature at Noon was of -4.5 ºF.

<h3>What is the temperature change?</h3>
  • The temperature change during a period is given by the <u>temperature at the end of the period subtracted by the temperature at the start of the period</u>.

On Tuesday:

  • At the start of the period, the temperature was of -17.5 ºF.
  • The change was of -11 ºF.

Hence:

-11 = T_N - T_M

-11 = T_N + 17.5

T_N = -28.5

On Tuesday, the temperature at Noon was of -28.5 ºF.

On Wednesday:

  • At the end of the period, the temperature was of 10 ºF.
  • The change was of 15.5 ºF.

Hence:

15.5 = 10 - T_M

T_M = -5.5

On Wednesday, the temperature at Midnight was of -5.5 ºF.

On Thursday:

  • At the end of the period, the temperature was of -24 ºF.
  • At the start of the period, the temperature was of -12.2 ºF.

Hence:

C = -24 - (-12.2) = -24 + 12.2 = -11.8

On Thursday, the change was of -11.8 ºF.

On Friday:

  • At the start of the period, the temperature was of -21.8 ºF.
  • The change was of 17.3 ºF.

Hence:

17.3 = T_N - T_M

17.3 = T_N + 21.8

T_M = -4.5

On Friday, the temperature at Noon was of -4.5 ºF.

You can learn more about change at brainly.com/question/24313700

8 0
2 years ago
50 POINTS!!! <br> Which function is shown on the graph below?<br> See photo
Volgvan

Answer:

C. y=\sqrt{2x-6}+1

Step-by-step explanation:

From the graph of the function, we can see that the domain of the function is x\ge 3, the range of the function is y\ge 1.

Consider the parent function y=\sqrt{x}.

The domain of this function is x\ge 0, the range of this function is y\ge 0.

The function y=\sqrt{2x-6}+1 has

the domain

2x-6\ge 0\\ \\2x\ge 6\\ \\x\ge 3

and the range

y\ge 0+1\\ \\y\ge 1

All other options have different domain, or the range, or both the domain and the range.

4 0
3 years ago
In one lottery game, contestants pick five numbers from 1 through 23 and have to match all five for the big prize (in any order)
mihalych1998 [28]

The probability of matching three out of five numbers is 153/33649

<h3>How to determine the probability?</h3>

The numbers are given as:

1 to 23

There are five matching numbers

The  probability of getting a match is:

p = 5-k/n where k = 0, 1, 2

While the complement probability is

q = (n - 2)/n

Using the above formulas, the probability of getting from 5 is:

P = 5/23 * 4/22 * 3/21 * 18/20 * 17/19

Evaluate the product

P = 153/33649

Hence, the probability of matching three out of five numbers is 153/33649

Read more about probability at:

brainly.com/question/14290572

#SPJ1

6 0
1 year ago
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