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Furkat [3]
3 years ago
12

I need help with midpoint

Mathematics
2 answers:
Nana76 [90]3 years ago
8 0
What about it I don’t understand what you are asking
Andrews [41]3 years ago
6 0
Well first of all you got to show your answer.
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The breaking strengths of cables produced by a certain manufacturer have a mean µ, of 1850 pounds, and a standard deviation of 9
saul85 [17]

Answer:

We accept H₀. We do not have argument to keep the claim that the mean breaking strength has increased

Step-by-step explanation:

Normal Distribution

Population Mean   μ₀  = 1850 pounds

Standard Deviation   σ  =  90 pounds

Type of test

Null Hypothesis                         H₀     ⇒    μ  =  μ₀

Alternative Hypothesis            Hₐ      ⇒    μ > μ₀

A one tail test  (right)

n = 21  as    n  < 30  we use t-student table

degree of fredom   20  

t = 2.845

Sample mean   μ = 1893

Then, we compute t statistics

t(s)  =  [ 1893 - 1850 ] / 90/ √n

t(s)  =   43 * 4,583 / 90

t(s)  = 197,069 / 90

t(s)  =  2,190

And we compare t  and  t(s)

t(s)  =  2.190

t =  2.845

Then  t(s)  <  t

We are in the acceptance zone, we accept  H₀

5 0
2 years ago
Liz earns a salary of $2,300 per month, plus a commission 5% of her sales. She wants to earn at least $2,500 this month. Enter a
aliya0001 [1]

Answer:

she needs to earn at least $200 more to equal $2,700, so

200=x($amount of needed sales) * .06

200/.06=x

$3,333=x is sales needed to meet goal

variable is $ amount of sales needed to earn $2,700 this month.

Commission rate as decimal=.06

Inequality that represents is...

x> or = $3,333

4 0
2 years ago
Read 2 more answers
Sue buys 8.5 pounds of chicken to make Tacos. She uses 0.3 pound of chicken for each taco how many tacos consume make how many p
vlabodo [156]
She can make about 29 tacos
4 0
3 years ago
PLEASE HELP!! what is the horizontal asymptote of f(x)=2/3^x? Is it on the x-axis or the y-axis?
anygoal [31]

Hey there! :)

Answer:

y = 0, also known as the x-axis.

Step-by-step explanation:

The equation f(x) = \frac{2}{3} ^{x} is an exponential function.

There is an asymptote at y = 0, or the x-axis because:

\frac{2}{3} ^{x}\neq  0

An exponential function, unless containing a vertical shift, can never cross the x-axis resulting in an asymptote at y = 0.

4 0
3 years ago
Solution for this one step by step please
Mrrafil [7]

Answer:

D.\:\:\:\:\:\sec^4\theta

Step-by-step explanation:

  • \frac{1+\tan^2\theta}{\cos^2\theta}

  • =\frac{\sec^2\theta}{\cos^2\theta}\:\:\:(\because 1+\tan^2\theta=\sec^2\theta)

  • =\sec^2\theta.\frac{1}{\cos^2\theta}

  • {=\sec^2\theta.{\sec^2\theta}}\:\:\:(\because\frac{1}{\cos^2\theta}=\sec^2\theta)

  • =\sec^4\theta

Hope it helps you in your learning process.

8 0
1 year ago
Read 2 more answers
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