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4 years ago

Solve the system of linear equations below.

Mathematics

2 answers:

Anon25 [30]4 years ago

8 0

Asking the Math Gods...

y=6
x=2

Nat2105 [25]4 years ago

7 0

Answer:

Option (b) is correct.

x = 2 and y = 6 is the solution to the given system of linear equation.

Step-by-step explanation:

Given: The system of linear equation

2x + 5y = 34

x + 2y = 14

We have to solve the given system of linear equations.

Consider the given system of linear equation

2x + 5y = 34 .....(1)

x + 2y = 14 .......(2)

We solve the syatem using elimination method,

Multiply equation (2) by 2, we get,

(2) ⇒ 2x + 4y = 28 .....(3)

Subtract equation (1) and (3) , we have,

2x + 5y - (2x + 4y) = 34 - 28

Simplify, we get,

y = 6

And put y = 6 in (2), we get,

x + 2(6) = 14

x = 14 - 12

x = 2

Thus, x = 2 and y = 6 is the solution to the given system of linear equation.

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Private colleges and university rely on money contributed

Otrada [13]

Answer:

The point estimate for the mean endowment of all private colleges in the United States is 180.2125 million dollars.

Step-by-step explanation:

We are given endowments (in millions of dollars) of eight private colleges in the United States:

78.8, 50.3, 243.2, 489, 111.5, 163.7, 92.4, 212.8

We have to find the point estimate of the population mean endowment of all private colleges in the United States.

The point estimate will be given by the sample mean.

$\mu = \bar{x}$

Formula:

$Mean = \displaystyle\frac{\text{Sum of all observations}}{\text{Total number of observation}}$

$Mean =\displaystyle\frac{1441.7}{8} = 180.2125$

Thus, the point estimate is 180.2125 million dollars.

3 0

3 years ago

What is x-3x-4 but the x is squared to the second power

Anna35 [415]

Hey! First of all, you can express x squared as x^2.

Secondly, the problem! I'm assuming you're asking for the values of x - if you're asking what the equation is, it's a quadratic equation, or a second-degree polynomial. Solving for x, this equation can be factored as (x-4)(x+1)=0. Because either of these two terms being zero will make the whole equation zero, we can have x-4=0, in which case x=4, or x+1=0, in which case x=-1. Therefore, x is either 4 or -1

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3 years ago

PLEASE HELP ASAP WILL GIVE 75 POINTS AND BRAINLIEST TO FIRST ANSWER!!!!

poizon [28]

Answer:

Step-by-step explanation:

Dear Ms Striclend,

I don’t think you meant to, but you made a mistake putting in the value for the computer system. Can you please explain to me how you made the mistake?

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3 years ago

In a binomial experiment the probability of success is 0.06. What is the probability of two successes in seven trials? a. 0.0554

ollegr [7]

7 trials = 0.06×7=0.42
2 trials = 0.06×2=0.12
So 2/7 trials = 0.12/0.42

4 0

4 years ago

Solve ((9-2)^2)^3/(4+3)^5

Alenkasestr [34]

=(7^2)^3/7^5
=7^6/7^5
=7

8 0

3 years ago