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artcher [175]
3 years ago
9

Is y = 3 a possible solution to the following system of equations? Explain why or why not.

Mathematics
1 answer:
kykrilka [37]3 years ago
8 0

Step-by-step explanation:

y = 3 is not possible because when 3 is submitted in for y in the first equation the value for x + z is not 20.

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Find the corresponding point on the unit circle for the radian measure given below. 0=7pi/2
pogonyaev

Answer:

\frac{7\pi}{2} = \frac{3\pi + 4\pi}{2} = \frac{3\pi}{2} + 2\pi => (0, -1)

7 0
3 years ago
Determine whether each of the following problems
Ket [755]

Answer:

irrational

Step-by-step explanation:

pi itself is irrational, so adding something to it makes no difference

3 0
3 years ago
The average salary for a teacher is $55,000 per year. A physician makes on average $220,000. If you consider the earning potenti
Evgen [1.6K]

Answer:

The difference between the teacher's earnings as compared to the physician's earning over 30 years is $4,950,000

Step-by-step explanation:

Given as :

The average salary for a teacher in a year = $55,000 per year

The average salary for a physician in a year = $220,000 per year

Let The difference between the teacher's earnings as compared to the physician's earning over 30 years = $x

Now,

The average salary for a teacher for 30 years = $55,000 × 30 = $1,650,000

The average salary for a physician for 30 years = $220,000 × 30 = $6,600,000

So,

The difference between the teacher's earnings as compared to the physician's earning over 30 years = The average salary for a physician for 30 years  - The average salary for a teacher for 30 years

Or, $x = $6,600,000  - $1,650,000

∴ x = $4,950,000

So, The difference between the teacher's earnings as compared to the physician's earning over 30 years = x = $4,950,000

Hence, The difference between the teacher's earnings as compared to the physician's earning over 30 years is $4,950,000 . Answer

7 0
3 years ago
Find the equation of the line in slope-intercept form perpendicular to the line y= 3/2x-6 and passing through the point (9,-4)
anygoal [31]

Answer:

y = -(2/3)x + 2

Step-by-step explanation:

Perpendicular lines have slopes that are opposite reciprocals of each other.  That means you take the slope, flip the fraction, and change the sign.

Here our given line is y = (3/2)x - 6 so the slope 5/9

The opposite reciprocal of 3/2 is -2/3

We set up the equation

y = -(2/3)x + b      

  we are given a point (x, y) of (9, -4), so plug that in and solve for b

-4 = -(2/3)(9) + b

    -4 = -6 + b

     2 = b  

So our equation is  y = -(2/3)x + 2

8 0
3 years ago
Matt is on a road trip and is
Svet_ta [14]

Answer:

80 miles

Step-by-step explanation:

basically just 4×20. quite simple really

7 0
3 years ago
Read 2 more answers
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