Describe how to determine the solution of a system of two linear equations by graphing.WEEELPP

Answers

Answer 1

Answer: Using the graphing you graph the two equations and then find the point where the two lines of the equation meet.

Hope this helps :)

Answer 2

Answer: 1). Draw the graph of one equation.

2). On the same graph, draw the graph of the other equation.

3). If the two lines cross, the x and y at the point where they cross are the solution to the system of two equations.

4). If the two lines don't cross, then the system has no solution.

5). If they are the same line, then the two equations are the same equation, and every point on the line is a solution to it.

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Markus scored 85, 92, 82, and 94 on the first four tests of the semester. His teacher has not yet told him his score on his fifth test, but did tell him that his score on the fifth test is five points lower than the average (arithmetic mean) of all five tests. Which equation could Markus use to determine the score of the fifth test, x?

Answers

The answer is B. 5(x + 5) = 353 + x

(For anyone who needs it now)

Answer: B. 5(x + 5) = 353 + x

Step-by-step explanation:

Work the following pricing problems for services rendered. (For all calculations use hundredths.)Labor time = 4 1/2 hours
Overhead rate = 95%
Retail price of parts = $134.75
Total cost of job = $241.98
Hourly rate?

Answers

Answer:

Hourly Rate = $12.22 per hour

Step-by-step explanation:

$\text{Labor Time = }4\tfrac{1}{2}=4.5\thinspace{ hours}$

Overhead Rate = 95%

Retail price of parts = $134.75

Total cost of job = $241.98

Cost of labor = Total cost - Retail price

= 241.98 - 134.75

= $107.23

Now, labor works for 4.5 hours and ears a total amount of $107.23

$\implies\text{Amount earned in one hour or hourly rate = }(107.23)/(4.5)\n\n\implies \text{Hourly rate = }\$23.83\text{ per hour}$

Now, Labor will get 95% overhead rate

⇒ The labor is getting 100% already but an overhead of 95% is also given

$\text{So, Hourly Rate = }(23.83)/(1+0.95)\n\n\bf\implies\textbf{Hourly Rate = }\$12.22\textbf{ per hour}$

Answer:

12.22

Step-by-step explanation:

Find the exact value of each trigonometric function:1) cot 135 degrees
2) tan -30 degrees
3) cot (-pi)

Show your work.

This is from trigonometry or Algebra 2.
Please don't answer if you don't know it.

Answers

cot 135 is the same a 1/tan 135, which is equal to 1/-1, so cot 135 is -1

tan -30 is the same as tan 330, which is - $√(3 )$ / 3

cot -π = 1 / tan π, which is 1 / 0, and you can't divide by 0, so cot -π is undefined

A unicorn whose mass is 65 kg is moving at a speed of 4 m/s. What is the unicorn's kinetic energy?

Answers

Answer:

$KE = 520 J$

Step-by-step explanation:

$KE=(1)/(2)mv^2\nKE=(1)/(2)*65*4^2\nKE=(1)/(2)*65*16\n\nKE=520J$

The minimum monthly payment for Fern's credit card is 2.5% of her balance or $40, whichever is higher. If Fern's balance at the end of her last billing cycle was $1950, what is her minimum monthly payment?A.$48.75
B.$40.00
C.$8.75
D.$88.75

Answers

Answer:

A. $48.75.

Step-by-step explanation:

We have been given that the minimum monthly payment for Fern's credit card is 2.5% of her balance or $40, whichever is higher.

First of all let us find 2.5% of $1950.

$\text{2.5\% of \$1950}=(2.5)/(100)* \$1950$

$\text{2.5\% of \$1950}=0.025* \$1950$

$\text{2.5\% of \$1950}=\$48.75$

Since the minimum monthly payment will be the higher amount among 2.5% of the balance or $40. As $48.75 is higher than $40, therefore, Fern's minimum monthly payment will be $48.75 and option A is the correct choice.

1950 * .025
48.75
A
When you do these problems, you must make sure you put this percent into decimal form before punching it into your calculator.

What is the formula for finding a1 in the geometric series sn=48455, r=3.2, n=3?

Answers

The formula for finding the sum in the geometric series: $S_(n)=a_(1) * ( r^(n) -1)/(r-1)$ For finding a1: $a_(1) = ( S_(3)*(3.2-1) )/( 3.2^(3)-1 ) = (48455*2.2)/(32.768-1)= (106601)/(31.768)=3355.6094$

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