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
Nadusha1986 [10]
3 years ago
11

PLEASE HELP! DUE TONIGHT!

Mathematics
1 answer:
Tju [1.3M]3 years ago
5 0
f(7) = 5(7) = \boxed{\bf{35}}\\\\\\f(9) = 9 + 13 = \boxed{\bf{22}}\\\\\\f(4) = 3(4) - 1 = 12 - 1 = \boxed{\bf{11}}
You might be interested in
Solve for the value of z
zloy xaker [14]

Answer:

  26

Step-by-step explanation:

The two angles shown are a linear pair. Their sum is 180°.

  (4z -8)° +(3z +6)° = 180°

  7z = 182 . . . . . . . . . divide by °, add 2

  z = 26 . . . . . . . . . . divide by 7

3 0
2 years ago
Read 2 more answers
Please help ASAP.. I don’t understand.
Dmitry_Shevchenko [17]

Y intercept means x = 0, on x= 0 y is also zero so the cordinate is (0,0)

8 0
3 years ago
A consumer products company is formulating a new shampoo and is interested in foam height (in mm). Foam height is approximately
Genrish500 [490]

Answer:

a) 0.057

b) 0.5234

c) 0.4766

Step-by-step explanation:

a)

To find the p-value if the sample average is 185, we first compute the z-score associated to this value, we use the formula

z=\frac{\bar x-\mu}{\sigma/\sqrt N}

where

\bar x=mean\; of\;the \;sample

\mu=mean\; established\; in\; H_0

\sigma=standard \; deviation

N = size of the sample.

So,

z=\frac{185-175}{20/\sqrt {10}}=1.5811

\boxed {z=1.5811}

As the sample suggests that the real mean could be greater than the established in the null hypothesis, then we are interested in the area under the normal curve to the right of  1.5811 and this would be your p-value.

We compute the area of the normal curve for values to the right of  1.5811 either with a table or with a computer and find that this area is equal to 0.0569 = 0.057 rounded to 3 decimals.

So the p-value is  

\boxed {p=0.057}

b)

Since the z-score associated to an α value of 0.05 is 1.64 and the z-score of the alternative hypothesis is 1.5811 which is less than 1.64 (z critical), we cannot reject the null, so we are making a Type II error since 175 is not the true mean.

We can compute the probability of such an error following the next steps:

<u>Step 1 </u>

Compute \bar x_{critical}

1.64=z_{critical}=\frac{\bar x_{critical}-\mu_0}{\sigma/\sqrt{n}}

\frac{\bar x_{critical}-\mu_0}{\sigma/\sqrt{n}}=\frac{\bar x_{critical}-175}{6.3245}=1.64\Rightarrow \bar x_{critical}=185.3721

So <em>we would make a Type II error if our sample mean is less than 185.3721</em>.  

<u>Step 2</u>

Compute the probability that your sample mean is less than 185.3711  

P(\bar x < 185.3711)=P(z< \frac{185.3711-185}{6.3245})=P(z

So, <em>the probability of making a Type II error is 0.5234 = 52.34% </em>

c)

<em>The power of a hypothesis test is 1 minus the probability of a Type II error</em>. So, the power of the test is

1 - 0.5234 = 0.4766

3 0
3 years ago
8g - 7 = 5g + 6. What is g?<br><br>​
Whitepunk [10]
In fraction form g would be 13/3, decimal form is 4.3
4 0
3 years ago
Amy can run the 150 meter dash in 50 seconds. john can run 1200 meters in 400 seconds. who runs faster per second?
Sati [7]

Answer:

Amy

Step-by-step explanation:

amy completed a longer distance in a shorter amount of time

rather than john completed a shorter distance in a longer time

5 0
3 years ago
Other questions:
  • Point a is located at 4,-7. The point is reflected in the x-axis it's image is located at
    12·1 answer
  • Please help. I think I know but I'd like to have it confirmed.
    15·1 answer
  • Please help I have been trying to solve this
    7·1 answer
  • Identify the point on the number line for each number
    5·1 answer
  • What would be the answer or how do I solve (x)÷9x
    14·1 answer
  • What is 446,221 rounded to the nearest ten what is the answer
    15·2 answers
  • Helen has $30 in a savings account that earns 10% interest, compounded annually.
    15·1 answer
  • Identify the variables: 8c * 7c - 10p + 12
    6·1 answer
  • What is the product of Three-fifths times StartFraction 2 Over 7 EndFraction?
    7·2 answers
  • A rowing team rowed 90 miles while going with the current in the same amount of time as it took to row 10 miles going against th
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!