2 years ago

2x + y + z = 9 -x-y +z = 1 3x - y +z=9

Mathematics

1 answer:

DiKsa [7]2 years ago

3 0

Answer:

603 hope this helps

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Scores on a Registered Nurse (RN) aptitude exam are normally distributed with a mean of 72 and a standard deviation of 8. What i

Yuri [45]

Answer:

Step-by-step explanation:

Solved using excel

If you were supposed to use a normal table to solve leave a comment

0.0520812794152196

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1 year ago

Given the function f(x) = 4x - 2, explain and show how to find the average rate of change between x = 2 and x = 4.

zalisa [80]

Answer:

The average rate of change between x = 2 and x = 4 is of 4.

Step-by-step explanation:

Average rate of change:

The average rate of change of a function f(x) in an interval [a,b] is given by:

$A = \frac{f(b)-f(a)}{b-a}$

In this question:

$f(x) = 4x - 2, b = 4, a = 2$

Thus:

$f(b) = f(4) = 4(4) - 2 = 16 - 2 = 14$

$f(a) = f(2) = 4(2) - 2 = 8 - 2 = 6$

Average rate of change:

$A = \frac{f(b)-f(a)}{b-a}$

$A = \frac{14-6}{4-2}$

$A = \frac{8}{2}$

$A = 4$

The average rate of change between x = 2 and x = 4 is of 4.

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2 years ago

The students in a class and the teacher visited a park on a field trip. The students were taught how to plant seeds, and the tea

drek231 [11]

The answer is B because the teacher is keeping count of the seeds that EACH student plants

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2 years ago

Read 2 more answers

What is the answer meyn?

Alexandra [31]

Answer:

the best value is two 50 ml bottles

Step-by-step explanation:

Okay focus with me , if you buy a bottle of 50 ml you will get a second for half price so we can say that --> 2 bottles of 50 ml =

$45 + \frac{45}{2} = 67.5$

We get 100 ml with £67.5 just , but when you buy 80ml you must pay £55 Hum !

then you can dived the volume of bottle with price ...

the price of one ml is 0.675 in first State

$\frac{67.5}{100 } = 0.675$

in the second state the price of one ml is

$\frac{55}{80} = 0.6875$

then :

$0.675 < 0.6875$

so the best value is two 50 ml bottles

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2 years ago

What is the determinant of k =[ 6 8]

Sergeeva-Olga [200]

That would be 6 *3 - 8*0 = 18

Its D

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2 years ago