All categories

3 years ago

6. Solve the following system of equations

Mathematics

2 answers:

Setler79 [48]3 years ago

3 0

The answer is A. you basically just plug the numbers in and see which one is correct.

JulijaS [17]3 years ago

3 0

Answer:

A, x=-1, y=4

Step-by-step explanation:

First off you have to get rid of the y, so you have to multiply the the whole first equation by 5, and the whole second equation by 3, and then you can add your ys together and get 0 and you want to add both of the equations together. it will leave you with 34x=-34 so x=-1. take the first equation and plug in the answer you got, so it should be -5+3y=7, add 5 to both sides and then you will get 3y=12 divide that by 3 and you have y=4. So the answer is x=-1, y=4

You might be interested in

Which statement describes the end behavior of the function f\left(x\right)=\frac{1}{7}\left(x-4\right)+^3?

shusha [124]

Answer is

B.) As x approaches negative infinity, f(x) approaches positive infinity.

4 0

3 years ago

What is the prime factorasation of 96

dimulka [17.4K]

So, the prime factors of 96 are written as 2 x 2 x 2 x 2 x 2 x 3 or 3 x 25, where 2 and 3 are the prime numbers.

5 0

3 years ago

Read 2 more answers

Need help asap please !!

irinina [24]

Answer:

g(3) = 13

Step-by-step explanation:

The function g(3) means you replace every x value in the g(x) equation with 3:

$g(x) = x^2 + 4\\g(3) = 3^2 + 4\\g(3) = 9 + 4\\g(3) = 13$

Hope this helps!

7 0

2 years ago

Read 2 more answers

A roulette wheel has 38 3838 slots, of which 18 1818 are red, 18 1818 are black, and 2 22 are green. In each round of the game,

Elina [12.6K]

The value of P(R = 3) is 0.2854

<h3>Probability</h3>

Probabilities are used to determine the chances of events.

The given parameters are:

$n = 38$ --- the number of slots
$red = 18$ . --- the number of red slot
$black = 18$ . --- the number of black slot
$green = 2$ . --- the number of green slot

<h3>Individual probabilities</h3>

The probability that the ball lands on a red slot is calculated as:

$p = \frac{18}{38}$

Simplify

$p= \frac{9}{19}$

The probability that the ball does not land on a red slot is calculated as:

$q = \frac{18+2}{38}$

$q = \frac{20}{38}$

Simplify

$q = \frac{10}{19}$

<h3>Binomial probability</h3>

The value of P(R = 3) is then calculated using the following binomial probability formula

$P(R = r) = ^nC_rp^rq^{n-r}$

Where:

$n = 7$

$r = 3$

So, we have:

$P(R = 3) = ^7C_3 \times (9/19)^3 \times (10/19)^{7-3}$

$P(R = 3) = 35 \times (9/19)^3 \times (10/19)^4$

$P(R = 3) = 0.2854$

Hence, the value of P(R = 3) is 0.2854

Read more about probabilities at:

brainly.com/question/15246027

8 0

2 years ago

Read 2 more answers

PLEASE HELP

Lera25 [3.4K]

Answer:

To construct the Square using a compass and straight edge, you have written the steps not in proper order. I am rearranging the steps for you

1. Construct horizontal H J¯¯¯¯¯

2. Construct a circle with point H as the center and a circle with point J as a center with each circle having radius HJ .

3.Label the point of intersection of the two circles above HJ¯¯¯¯¯ , point K, and the point of intersection of the two circles below HJ¯¯¯¯¯ , point L.

4.Construct KL¯¯¯¯¯ , the perpendicular bisector of HJ¯¯¯¯¯ , intersecting HJ¯¯¯¯¯ at point M.

5.Construct a circle with point M as the center with radius MJ .

6.Label the point of intersection of circle M and KL¯¯¯¯¯ closest to point K, point N, and the point of intersection of circle M and KL¯¯¯¯¯ closest to point L, point O.

7.Construct HN¯¯¯¯¯¯ , NJ¯¯¯¯¯ , JO¯¯¯¯¯ , and OH¯¯¯¯¯¯ to complete square HNJO .

3 0

3 years ago