Need help please show how you did it.
Need help please show how you did it. - 1

Answers

Answer 1
Answer:

Answer:

(0, 1).

Method 1 (Substitution):

Substituting our two y's, we get the following:

x^2 + 5x + 1 = x^2 + 2x + 1 \Rightarrow 3x = 0 \Rightarrow x = 0

Thus, the only set of solutions is (0, 1). A quick sketch (either by hand or on Desmos) can confirm this.

Method 2 (Elimination):

We have two equations. We'll let the top one be equation 1 and the bottom one be equation 2. Eliminating as many variables as we can, we subtract (2) from (1) to get:

0 = 3x => x = 0.

So the only set of solutions is (0, 1).

Method 3 (Gaussian elimination):

We can place this in an augmented matrix and row reduce.

\left[\begin{array}{cccc}1&5&1 & 1\n1&2&1 & 1\end{array}\right]

Row reducing this gives us:

\left[\begin{array}{cccc}1&5&1 & 1\n0&3&0 & 0\end{array}\right]

This tells us that the only solution for x is x = 0 (since we read this as "3x = 0") and thus, the only solution we get is (0, 1).


Related Questions

Find the surface area and volume of a rectangular solid with length 10, width 7, height 12surface area______square inchesvolume_____cubic inches​
Answer the following...
Find the slope of the line that passes through 6, 0 and −3, 2
From 12 teachers to 48 teachers using perecent
Chris went on a vacation for a week and asked his brother Paul to feed his old cat Charlie. But Paul is forgetful, and Chris is 70% sure Paul will forget to feed his cat. Without food, Charlie will die with probability 0.5.

please i need help i will give 15 points and mark brainlist for the best one !!!!! Which do you prefer: leaving √5 in radical form, or converting it to a decimal? Why? When would it be useful to use each? Your response should be 3-5 sentences long and show that you’ve thought about the topic/question at hand. Please be aware we are looking for YOUR PERSONAL OPINION and there is not a single “correct answer.”

Answers

Answer: Change it to decimal

Step-by-step explanation:

Converting it to decimal makes it easier to work with. It might make be an extra step, but in the long run of the problem it helps to make calculations accurate and easier to solve by working with simpler numbers. Converting to decimal form makes the number more precise for square roots, which are usually not whole numbers.

Molly runs 3 miles on Monday, Wednesday,amd Friday she runs twice as far on Saturday as she does on Monday.How many total mules did she run each week

Answers

she run a total of 15. If you add 3 miles to everyday she ran and then add 6 on saturday then you would get 15.

Answer: 15 miles

Step-by-step explanation:

So, Molly runs 3 miles and theres 3 days. Monday, Wednesday, and Friday. 3 x 3 is 9 and on Friday she runs twice the amount. So 3x2 is 6 and 9+6 is 15.

-4 1/4 as a decimal number HELP!!!

Answers

Answer:

-4.25

−4 1/4 = −4 +1/4

= −4/1+1/4

=(−4/1×4/4)+1/4

=−16/4 + 1/4= −17/4

So, -17 divided by 4 equals

-4.25

Susan reads a book at a rate of 1 page every 3 minutes. If her reading rate remains the same, which method could be used to determine the number of minutes for her to read 18 page? *

Answers

Answer:

54 minutes

Step-by-step explanation:

Hope I helped!

I can almost guarantee this answer is correct.

Have a nice day!

Answer:

54 minutes

Step-by-step explanation:

Every 3 minutes she reads 1

18x3=54

Hope it helps

Can anyone find out?

Answers

Answer:

i think its 85

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

Let f be the linear function (in blue) and let g be the parabolic function (in red) below. I have already tried 0,2,-1 and none of them work for the g o g(2) one and I'm soo confused. Please help!

Answers

Based on the graph of the linear function (in blue) and parabolic function (in red), the corresponding output values include the following;

(f∘g)(2) = -1.

(g∘f)(2) = 1.

(f∘f)(2) = 0.

(g∘g)(2)= 4.

(f + g)(4) = 7.

(f/g)(2) = DNE.

What is a function?

In Mathematics and Geometry, a function composition is an operation (∘) that combines two functions f(x) and g(x), in order to produce a composite function h(x) = (g∘f)(x), such that h(x) = g.

In this exercise, we would determine the corresponding output values for each of the composite functions by using the substitution method as follows;

(f∘g)(2) = f(g(2))

f(g(2)) = f(0)

f(0) = -1.

Part 2.

(g∘f)(2) = g(f(2))

g(f(2)) = g(1)

g(1) = 1.

Part 3.

(f∘f)(2) = f(f(2))

f(f(2)) = f(1)

f(1) = 0.

Part 4.

(g∘g)(2) = g(g(2))

g(g(2)) = g(0)

g(0) = 4.

Part 5.

(f + g)(4) = f(4) + g(4)

f(4) + g(4) = 3 + 4

f(4) + g(4) = 7.

Part 6.

(f/g)(2) = f(2)/g(2)

f(2)/g(2) = 1/0

f(2)/g(2) = DNE.

Read more on composite function here: brainly.com/question/30660139

#SPJ2

Step-by-step explanation:

g(g(2))

= g(0)

= 4