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
melomori [17]
3 years ago
10

Young's modulus is a quantitative measure of stiffness of an elastic material. Suppose that for aluminum alloy sheets of a parti

cular type, its mean value and standard deviation are 70 GPa and 1.6 GPa, respectively (values given in the article "Influence of Material Properties Variability on Springback and Thinning in Sheet Stamping Processes: A Stochastic Analysis" (Intl. J. of Advanced Manuf. Tech., 2010: 117–134)). (a) If X is the sample mean Young's modulus for a random sample of n = 64 sheets, where is the sampling distribution of X centered, and what is the standard deviation of the X distribution?
Mathematics
1 answer:
slavikrds [6]3 years ago
5 0

Answer:

0.2 GPa

Step-by-step explanation:

Data provided:

Mean value = 70 GPa

Standard deviation, σ = 1.6 GPa

Now,

a) sample, n = 64

From central limit theorem,

The sample of n = 64 will have the same mean i.e 70 GPa

and,

The standard deviation

σ' = \frac{\sigma}{\sqrt{\textup{n}}}

on substituting the respective values, we get

σ' = \frac{1.6}{\sqrt{64}}

or

σ' = 0.2 GPa

You might be interested in
Solve the formula h=54t+12at2 h = 54 t + 1 2 a t 2 for a.
oee [108]
Hope this helps!!!!!

3 0
3 years ago
What is Y=6x+8(5-7) what is Y=6x+8(5-7)
LenaWriter [7]

Answer:

x = 8/3

Step-by-step explanation:

Solve for x:

6 x + 8 (5 - 7) = 0

5 - 7 = -2:

6 x + -2 8 = 0

8 (-2) = -16:

6 x + -16 = 0

Add 16 to both sides:

6 x + (16 - 16) = 16

16 - 16 = 0:

6 x = 16

Divide both sides of 6 x = 16 by 6:

(6 x)/6 = 16/6

6/6 = 1:

x = 16/6

The gcd of 16 and 6 is 2, so 16/6 = (2×8)/(2×3) = 2/2×8/3 = 8/3:

Answer:  x = 8/3

7 0
4 years ago
Write an equation in slope intercept and form of the line through point(6,-1)with slope m=4
aniked [119]

To solve this problem, we must first remember that slope-intercept form is y=mx + b, where the variable m represents the slope of the line and the variable b represents the y-intercept of the equation.

To begin, we can take this form and substitute in the slope for the variable m.

y = mx + b

y = 4x + b

Next, because we weren't given the y-intercept, we can find it by substituting the value of 6 for x and the value of -1 for y (these values came from the ordered pair that we were given in this problem).

-1 = 4(6) + b

After that, we can begin to simplify and solve for the variable b by computing the multiplication on the right side of the equation.

-1 = 24 + b

Next, we should subtract 24 from the right side of the equation in order to get the variable b alone.

-25 = b

Now, if we substitute in this value for the variable b in our equation with the slope, we get:

y = 4x - 25

Therefore, your answer is y = 4x - 25.

Hope this helps!

3 0
4 years ago
Week
aleksandrvk [35]

Answer:

i think 4 but you try my answer is not or correct

6 0
3 years ago
Solve the following equation for q. 5q - 3p + 4 = 4q - 2
cricket20 [7]
Subtract 4Q from both sides combine 5 Q and minus 4q to get Q add 3p to both sides subtract 4 from both sides subtract 4 from -2 to get to -6
4 0
2 years ago
Other questions:
  • Please help as soon as possible <br>Will mark BRAINLIEST ​
    7·2 answers
  • The ratio of red cars to blue cars in a parking lot was 5:3. If there were 40 red <br> cars
    12·1 answer
  • Ivan and tanya share £150 in the ratio 4:1 how much more ivan gets compared to tanya
    6·2 answers
  • Identify the rule for the pattern below which is 5,10,8,13,11,16,14,19,17,22
    7·1 answer
  • What would happen if you didn't file taxes?
    8·2 answers
  • Which of the following linear equations has the steepest slope
    12·1 answer
  • What is the value of x?​
    12·1 answer
  • Calvin has 2 3/4 chapters left in his book he reads 1 3/4 chapters before bed how many chapters dose he have left
    5·2 answers
  • Help it's due tomorrow plzz2 3 4
    14·1 answer
  • a ball is tossed into the air at 20 feet per second from a height of 7 feet. How long will it take the ball to reach the​ ground
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!