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
nexus9112 [7]
3 years ago
11

Daniel wanted to know his approximate score on the final exam for his mathematics class. His professor hinted that his score was

well above the class average. The professor announced that the mean for the class final exam was 88 with a standard deviation of 7. Given Daniel's z score of 1.67, what is the raw score for his exam grade?
Mathematics
1 answer:
Marizza181 [45]3 years ago
7 0

Answer:

The raw score for his exam grade is 99.69.

Step-by-step explanation:

Given : The professor announced that the mean for the class final exam was 88 with a standard deviation of 7. Given Daniel's z score of 1.67.

To find : What is the raw score for his exam grade?

Solution :

The formula use to find the z-score is

z=\dfrac{x-\mu}{\sigma}

Where, z=1.67 is the z-score

\mu=88  is the means

\sigma=7 is the standard deviation

x  is the raw score for his exam grade

Substitute the values,

1.67=\dfrac{x-88}{7}

1.67\times 7=x-88

11.69=x-88

x=88+11.69

x=99.69

Therefore, the raw score for his exam grade is 99.69.

You might be interested in
(06.06) 4 3(x + 4) represents the area of the rectangle above. Which expression below is equivalent by the Distributive Property
Alexeev081 [22]

Answer:

im on the same one if i get it right i will comment and tell u k?

Step-by-step explanation:

kk

6 0
3 years ago
Read 2 more answers
Can someone help me with this question?
Lina20 [59]

Answer:1/3

Step-by-step explanation:

gradient equals

\frac{Y2-Y1}{X2-X1}

=\frac{5-3}{10-4}

=\frac{2}{6}

=\frac{1}{3}

6 0
3 years ago
Find the volume of the composite space figure to the nearest whole number.
Romashka [77]

Answer:

  d.  944 mm^3

Step-by-step explanation:

The area of a circle is given by ...

  A = πr² . . . . . where r is the radius, half the diameter

The area of a circle with diameter 9 mm is ...

  A = π(4.5 mm)² = 20.25π mm²

The area of the semi-circular end of the prism is half this value, or ...

  semicircle area = (1/2)(20.25π mm²) = 10.125π mm² ≈ 31.809 mm²

__

The area of the rectangular portion of the end of the prism is the product of its width and height:

  A = wh = (9 mm)(6 mm) = 54 mm²

Then the base area of the prism is ...

  base area = rectangle area + semicircle area

  = (54 mm²) +(31.809 mm²) = 85.809 mm²

__

This base area multiplied by the 11 mm length of the prism gives its volume:

  V = Bh = (85.809 mm²)(11 mm) ≈ 944 mm³

The volume of the composite figure is about 944 mm³.

7 0
3 years ago
The cost of Nate's dinner including a 15% tip was $43.70. What was the cost of dinner alone?
Nookie1986 [14]

Answer:

The cost of dinner alone was $37.145

Step-by-step explanation:

15%=0.15----Convert your percentage into a decimal

43.70*0.15=6.555----Multiply the cost of dinner with the decimal

$43.70-$6.555=$37.145----Subtract the last number(6.555) from the total(43.70) to get the cost of dinner alone of $37.145 -This is making you subtract the percentage from the total!

I hope this helped!

7 0
3 years ago
Please check my answer : Find the equation of the line that has a slope of 8 and passes through the point (-3,4). I got y=8x-20
Paladinen [302]
The answer is y = -8x - 20. If you were to use y = 8x - 20 then you'd get 4 = -44, which, obviously, is not true. To fix it all you need to do is add a negative sign in front of the 8. y = -8x - 20.
7 0
3 years ago
Other questions:
  • A board game has a spinner divided into sections of equal size. Each section is labeled with a number between 1 and 5. What is a
    10·1 answer
  • Starting from 105 feet away, a person on a bicycle rides towards a checkpoint and then passes it. The rider is traveling at a co
    6·1 answer
  • Emily was offered a job after college earning a salary of $35,000. She will get a raise
    11·1 answer
  • In the number 5.923 which number is in the thousandths place
    13·2 answers
  • What is the value of the expression below when z=4 3z2-10z-5
    10·1 answer
  • Find the difference x/25x-125-1/x^2-5x
    9·1 answer
  • Solve -3 + c = 15 for c. plzzz help
    15·2 answers
  • Which equations define liner functions select all that apply
    12·1 answer
  • The school cafeteria served 2,560 cups of milk in March and 1,560 cups of milk in April. How many quarts of milk did the cafeter
    6·2 answers
  • Raylan opened a savings account with $100. After 5 years there is $122. 50 in the account. What is his simple interest rate?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!