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Molodets [167]
3 years ago
15

Solve the equation simultaneously. Y=x² + 2x + 1, Y= x²+2x - 2.. Solve for the values of X and Y.​

Mathematics
1 answer:
Papessa [141]3 years ago
5 0

The two functions should never intersect.

Since y = y, we can equate the other side of both equations together.

x^2 + 2x + 1 = x^2 + 2x - 2

Rearrange the equation to bring all the terms to one side.

0 = x^2 - x^2 + 2x - 2x - 2 - 1

0 = -3

You can see that does not make sense, so we can conclude that there are no points of intersection between the two functions.

I also graphed the functions. In the first pic you can see that the red is between the blue and they don't intersect. In the second pic I zoomed in so you can see the right side of the graph going up to y = 600 and the red is still between the blue.

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A square billboard has an area of 625 ft squared. What is the length of the side of the billboard?
goldenfox [79]

Answer:

figured it out is 25

Step-by-step explanation:

hope this helps:)

3 0
3 years ago
Which equation, when solved, results in a different value of x than the other three?
kicyunya [14]
I would have to say -7(1/8)x-4/3=20.


The first and the second one both result in
-23 5/7

The last one results in -24 8/21

but the third one is -22 3/8.

So your answer is either the third of the last one. I assumed the third because, it is lower than all others and the first two are closer to 24 than they are to 22. It’s your choice on how to judge it.
5 0
3 years ago
A group of 8 friends went to lunch and spent a total of $76, which included the food bill and a tip of $16. They decided to spli
Rudik [331]

Answer:

1) The equation 1/8(x+16)=76/8 represents the situation, where x is the food bill.

2) The solution x=60 represents the total food bill.

These both answers are correct.

Step-by-step explanation:

Since there are 8 group of friends, and the total amount spent by them is $76 including the tip i.e $16.

If x is the food bill our equation can be:

(x+16)/8 = 76/8

Solving the equation

(x+16)/8 = 9.5

x+16= 9.5*8

x= 76 -16

x= 60

The food bill is x=60.

6 0
3 years ago
Read 2 more answers
Imagine that our Math 91 class goes down to the Highline’s track and each person is timed running one lap around the 400-meter t
mrs_skeptik [129]
Domain is the set of names
Range is set of times
7 0
3 years ago
Simplify [(-64)÷8]÷(-8)​
choli [55]

Answer:

1

Step-by-step explanation:

Follow PBEMDAS:

Parenthesis

Brackets

Exponents (& Roots)

Multiplication

Division

Addition

Subtraction

~

First, divide -64 with 8:

-64/8 = -8

Next, divide -8 with -8:

-8/-8 = 1

1 is your answer.

~

7 0
3 years ago
Read 2 more answers
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