1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
sweet-ann [11.9K]
3 years ago
11

Solve the expression for: x = 2 and y = 5 x2 + 2y2 + 15

Mathematics
2 answers:
Ymorist [56]3 years ago
8 0

Answer:

69

Step-by-step explanation:

VARVARA [1.3K]3 years ago
5 0
The answer is 69

(2)^2 + 2(5)^2 +15

4 + 50 + 15

69
You might be interested in
A copy machine makes 24 copies per minute. how many copies does it make in 5 minutes and 30 seconds
enot [183]
In 1 minute the copy machine copies = 24
That means
In 60 seconds the copy machine copies = 24
First we need to convert 5 minutes and 30 seconds to seconds
Then
5 minutes and 30 seconds = (5 * 60) + 30
                                           = 300 + 30
                                           = 330 seconds
So
In 330 seconds the copy machine will copy = (24/60) * 330
                                                                     = 4 * 33
                                                                     = 132
So in 5 minutes and 30 seconds the copy machine will copy 132 copies.
6 0
3 years ago
Read 2 more answers
9 marbles your draw one what is the probability of drawing a red pen? You have 2 yellow 3 black and 4 reds
Pie

Answer:

4 / 9

Step-by-step explanation:

There are 4 reds out of 9 so the probability would be 4 out of 9 or 4 / 9.

7 0
4 years ago
Read 2 more answers
Find the solutions to the system of equations. Select all that apply. Y=x^2-1 y=2x-2
Sliva [168]

Answer:

Option C (1, 0)

Step-by-step explanation:

We have a system with the following equations:

y = x ^ 2-1\\\\y = 2x-2

The first equation is a parabola.

The second equation is a straight line

To solve the system, substitute the second equation in the first and solve for x.

2x-2 = x ^ 2 -1

Simplify

x ^ 2-2x + 1 = 0

You must search for two numbers that when you add them, obtain as a result -2 and multiplying both results in 1.

These numbers are -1 and -1

Therefore

x ^ 2-2x + 1= (x-1)(x-1)\\\\x ^ 2-2x + 1= (x-1)^2=0

Finally the solutions are

x = 1\\y =0

8 0
3 years ago
Read 2 more answers
How many solutions does this system have? y=3/4x-5 -3x+4y=-20?
Komok [63]
4y=-20+3x and 4y=13.6x-20
so
-20+3x=13.6x-20
3x=13.6x
3=13.6 so it is wrong and system doesn’t have solution
4 0
4 years ago
State the domain of d.
tester [92]

d(x) = { (x,y): y = sqrt(x) and y >=0 }

since sqrt function requires x to be >=0 so

<u>x >= 0</u>

4 0
3 years ago
Read 2 more answers
Other questions:
  • Pls answer this question
    5·2 answers
  • Help please!! Thank you
    13·2 answers
  • In 1987, the population of country A was estimated at 87 million people, with an annual growth rate of 3.5%. The 1987 population
    15·2 answers
  • Please help, I have a lot more too :(
    13·1 answer
  • Serena is making a model of the Egyptian pyramid. The square base has sides that are all 4.6 in. Each of the triangular faces ha
    6·1 answer
  • The question is show a dilation of a rectangle with a dilation of 8/3
    13·1 answer
  • Solve equations by using elimination <br> -4+5y= 13<br> X-5y=21<br> ( , )
    5·1 answer
  • Please help me <br> .<br> .<br> .<br> .<br> .<br> .
    15·1 answer
  • PLZ HELP ASAP<br> What is the length of MN? Round your answer to the tenths.
    10·2 answers
  • Lourdes has created the following challenges for you: She has given you three of the four points necessary to determine a rectan
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!