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Serga [27]
3 years ago
7

Scores on a Algebra test have average of 80 with standard deviation of 5. What is the z-score for a student who earned a 82 on t

he test? Round your answer to the nearest thousandth.
Mathematics
1 answer:
Dafna11 [192]3 years ago
3 0

Answer:

16

Step-by-step explanation:

You might be interested in
Need the work for this. 192 is the answer
Art [367]

Replace x with 3:

y = -3 *4^3

y = -3 * 64

y = -192

6 0
3 years ago
Mort bought his house in 2004 for $279,000. it was recently appraised at $186,000. What is the approximate percent of decrease i
Natalka [10]

Answer:

33.3%

Step-by-step explanation:

(279,000 - 186,000) / 279,000 = 0.33333333333

0.33333333333*100= 33.3333333333

Formula used:

V_{2} -V_{1} / V_{2} × 100

V2= 279,000

V1= 186,000

7 0
3 years ago
Helpppppp pleaseeeeee !!!!!!!!! !!!!
Sergio [31]

Given:

The function is:

f(x)=6x-3

To find:

The inverse of the given function, then draw the graphs of function and its inverse.

Solution:

We have,

f(x)=6x-3

Step 1: Substitute f(x)=y.

y=6x-3

Step 2: Interchange x and y.

x=6y-3

Step 3: Isolate variable y.

x+3=6y

\dfrac{x+3}{6}=y

Step 4: Substitute y=g(x).

\dfrac{x+3}{6}=g(x)

Therefore, the inverse of the given function is g(x)=\dfrac{x+3}{6} and the graphs of these functions are shown below.

8 0
2 years ago
I will give you 100 points if you can answer this<br><br> (66×578)÷3368=55÷77=???
erma4kov [3.2K]
(66✖️578) ➗ 3368=55➗77

P parentheses
E exponents
M multiplication
D division
A addition
S subtraction

You would do (66✖️578) first since it is in parentheses
66✖️578=38,148

38,138➗3368=55➗77
Since there are no exponents or multiplication you would do division

38,138➗3368= 11.3236342
55➗77=0.7

11.32 does not equal 0.7
So this equation would be false

Hope this helps! :3








3 0
3 years ago
Read 2 more answers
PLEASE HELPP!
zheka24 [161]

Answer:

5^2 = 100

100 x 3.14 = 314

Now we multiply by 20 since it's the height.

314 x 20 = 6,280 cm^3 is your answer.

Formula of cylinder:

H x πr^2

Height x pi(3.14 or 22/7 depending what they tell you to use for pi) x radius being squared (your radius is half of your diameter or given radius).

7 0
3 years ago
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