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
Reptile [31]
3 years ago
10

If a data set has mean of 150 and a standard deviation of 25, what is the z-score of an element with a value of 250?

Mathematics
1 answer:
Nimfa-mama [501]3 years ago
5 0

Answer:

Z-score is 4

Step-by-step explanation:

N(150, 25^2)

Use z-score formula (can be found from internet with miu and sigma symbol)

z =  \frac{250 - 150}{25}  \\ z = \frac{100}{25}  \\ z = 4

You might be interested in
If f(x)=-3x+4 and g(x)=x2, what is (g°f)(0)
Rus_ich [418]

Answer:

16

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
(X2)3<br> Power of a power rule
nalin [4]
2•3=6
I’m not for sure but used photomath
6 0
3 years ago
Solve for n -3n-5=16
Nezavi [6.7K]

Answer:

n = -7

Step-by-step explanation:

Solve for n:

-3 n - 5 = 16

Hint: | Isolate terms with n to the left-hand side.

Add 5 to both sides:

(5 - 5) - 3 n = 5 + 16

Hint: | Look for the difference of two identical terms.

5 - 5 = 0:

-3 n = 16 + 5

Hint: | Evaluate 16 + 5.

16 + 5 = 21:

-3 n = 21

Hint: | Divide both sides by a constant to simplify the equation.

Divide both sides of -3 n = 21 by -3:

(-3 n)/(-3) = 21/(-3)

Hint: | Any nonzero number divided by itself is one.

(-3)/(-3) = 1:

n = 21/(-3)

Hint: | Reduce 21/(-3) to lowest terms. Start by finding the GCD of 21 and -3.

The gcd of 21 and -3 is 3, so 21/(-3) = (3×7)/(3 (-1)) = 3/3×7/(-1) = 7/(-1):

n = 7/(-1)

Hint: | Simplify the sign of 7/(-1).

Multiply numerator and denominator of 7/(-1) by -1:

Answer: n = -7

7 0
3 years ago
Read 2 more answers
Cross product property
Klio2033 [76]

Using the cross product property on this proportion gives us the following equation:

20 (2x - 9) = 10 (9)

Use the distributive property and multiply

40x - 180 = 90

Add 180 to both sides

40x = 270

Divide 40 from both sides

x = 270/40

Simplify fraction

x = 27/4

This should be your answer. Let me know if you need any clarifications, thanks!

8 0
3 years ago
What integer is closest to <br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B321%7D%20" id="TexFormula1" title=" \sqrt{321} " a
crimeas [40]

Answer:

Step-by-step explanation:

18*18 = 324

So 18 is the closest integer to \sqrt{321}

6 0
2 years ago
Read 2 more answers
Other questions:
  • On a map of a city, the scale is 1 centimeter to 500 meters. If it is 4 kilometers between city hall and the library, how many c
    13·1 answer
  • Use substitution to determine which of the following points is a solution to the standard form equation below 5x-2y=10
    15·2 answers
  • Between 1 and 49 what number has the most factors
    5·1 answer
  • Please help me I’m stuck.
    13·1 answer
  • Find the total number of diagonals for a polygon of 10 sides.
    7·1 answer
  • I WILL GIVE YOU BRAINLIEST PLEASE HELP ME
    11·1 answer
  • Erik is bisecting a segment with technology. Which of the following describes his next step?
    11·1 answer
  • If i was nine years old an 2002 what age will i be and 2018
    5·1 answer
  • Alyssa attends football games at her school. At each football game, she buys a
    13·1 answer
  • A particular car used 5.2 gallons of gas to go 150 miles. This
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!