1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
zmey [24]
3 years ago
8

Given the number of hours spent amusing ourselves to death with screen time, how many Titanics could we have built in one year i

f all those hours had been spent building Titanics
Mathematics
1 answer:
ExtremeBDS [4]3 years ago
5 0

Answer:

12

Step-by-step explanation:

You might be interested in
Y = x² + 6x + 3
sp2606 [1]
Drown lemme know if this helps!
7 0
3 years ago
Read 2 more answers
. If IQ scores are normally distributed with a mean of 100 and a standard deviation of 5, what is the probability that a person
bulgar [2K]

Answer:

2.28% probability that a person selected at random will have an IQ of 110 or greater

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 100, \sigma = 5

What is the probability that a person selected at random will have an IQ of 110 or greater?

This is 1 subtracted by the pvalue of Z when X = 110. So

Z = \frac{X - \mu}{\sigma}

Z = \frac{110 - 100}{5}

Z = 2

Z = 2 has a pvalue of 0.9772

1 - 0.9772 = 0.0228

2.28% probability that a person selected at random will have an IQ of 110 or greater

5 0
3 years ago
Verify this cofunction identity by using the difference identity for cosine. Show your work! cos⁡(π/2-θ)=sinθ
taurus [48]
Cos(A-B) = cosAcosB + sinAsinB
<span>
cos(</span>π/2 - θ) = cos(π/2)cosθ + sin(π/2)sinθ

π/2 = 90°
cos(π/2) = cos90° = 0.        sin(π/2) = sin90° = 1

cos(π/2 - θ) = cos(π/2)cosθ + sin(π/2)sin<span>θ
</span>
                   = 0*cosθ + 1*sin<span>θ  = </span>sin<span>θ

Therefore  </span>cos(π/2 - θ) = sin<span>θ
 
QED   </span>
8 0
3 years ago
Ms. Williams wanted information about how well her students were
Arturiano [62]

Answer:

https://www.pittsfordschools.org/cms/lib/NY02205365/Centricity/Domain/683/ANSWER%20KEY%20TO%20ALL%20HOMEWORK.pdf

Step-by-step explanation:

If this doesn’t work I’m sorry but that’s the link!

5 0
3 years ago
What is the probability that the second digit of a lock combination is odd if the first digit is odd and the digits are not allo
Lelu [443]
That is a 4 out of 10 chance that the second number is odd, as well as the first.
6 0
3 years ago
Other questions:
  • The base ticket price for a football game is modeled by the function p(x) = 15x + 10, where x is the years since the team starte
    7·2 answers
  • Which phrase is NOT a way to state the meaning of the expression x – 3?
    13·2 answers
  • If clay cost 16.50 or 50lb how much will it cost for 45 pounds of clay
    9·2 answers
  • What are the angles that always equal to eachother
    9·2 answers
  • A company has to buy computers and printers. Each computer, x, costs $585 and each printer, y, costs $385. If the company spends
    9·1 answer
  • Given the parent function f(x) = x^2, describe the translation of the function f(x)= 1/4 (x - 6)^2 + 8
    6·1 answer
  • Which statement is true? 7.11≤−7.1 7.11&gt;−7.1 7.11&lt;−7.1 7.11=−7.1
    8·1 answer
  • Is 5/12 closer to 0, 1, 1/2
    5·2 answers
  • How to do pyramid math
    11·1 answer
  • Pleaseeeee help :((!!
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!