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
alukav5142 [94]
3 years ago
9

If xsquared+ysquared=57 , xy=3 . find the value of 3(x+y)squared

Mathematics
1 answer:
shepuryov [24]3 years ago
6 0

Answer:

189

Step-by-step explanation:

If you mean this, my answer is 3x63= 189

{x}^{2}  +  {y}^{2}  = 57 \\ xy = 3

{x}^{2}  +  {y}^{2}  + 2xy = 57 + 2 \times 3

{(x + y)}^{2}  = 63

3 {(x + y)}^{2}  = 3 \times 63 = 189

You might be interested in
The sum of three numbers is 10. Two times the second number minus the first number is equal to 12.
eimsori [14]

<u>Answer:</u>

-10,1,19

<u>Step-by-step explanation:</u>

<u></u>

x+y+z = 10 (Equation 1)

2y-x= 12  (Equation 2)

x-y+2z = 7 (Equation 3)

(Equation 2): -x = -2y+12

                       x = 2y-12 (Equation 4)

(Equation 1) - (Equation 3): 2y-z = 3

                                              -z = -2y+3

                                               z = 2y-3 (Equation 5)

Substitute (4) and (5) into (1)

x+y+z = 10

(2y-12)+y+(2y-3) = 10

5y-15 = 10

5y = 5

y=1

Substitute y=1 into (2)

2y-x= 12

2(1)-x= 12

2-x= 12

-x= 12-2

-x= 10

x= -10

Substitute y=1 and x=-10 into (1)

x+y+z = 10

-10+1+z = 10

z-9 = 10

z = 10+9

z = 19

Order: x = -10, y = 1, and z = 19

8 0
3 years ago
Read 2 more answers
Please help me for the 2nd part
Firlakuza [10]

there isn’t an image provided I can’t help unless you give an image

6 0
2 years ago
Please help quick.
GREYUIT [131]

Answer:

The answer to your question is: third option is correct

Step-by-step explanation:

Data

F (5, -1)

directrix   y = 1

Then, after getting the graph, the vertix = (5, 0)

                                                        and p = 1

                 Formula

                              (x - h) ² = -4p(y - k)

                              (x - 5)² = -4(1)(y - 0)

                              (x - 5)² = -4y

                              y = (x - 5)² / -4

3 0
3 years ago
Is 614 divisible by both 2 and 6?
harkovskaia [24]

Answer:

No

Step-by-step explanation:

It is not divisible by 6, for if you divide by 6, you will get a non natural number,

It is obviously divisible by 2.

So, No.

7 0
3 years ago
Read 2 more answers
Simplify the product using distributive property (2x-5)(x+3) show work
coldgirl [10]
Use the FOIL method
First, Outside, Inside, Last
(2x -5)(x + 3)

2x(x) = 2x²
2x(3) = 6x
-5(x) = -5x
-5(3) = -15

2x² + 6x - 5x - 15

simplify

2x² + 6x - 5x - 15

2x² + x - 15


2x² + x - 15 is your answer

hope this helps
4 0
3 years ago
Read 2 more answers
Other questions:
  • 0.52+0.15=0.52+x????
    6·2 answers
  • You have completed 4 miles of a 10 mile race in 32 minutes. At this pace, how long will it take you to complete the entire race?
    6·2 answers
  • PLEASE HELP.BEST ANSWER TO BRAINILIEST ANSWER.
    7·1 answer
  • Explain how to find the exact value of sin(570°).
    5·2 answers
  • Just runs 11 miles in 67 minutes how many miles does he run per minute<br>​
    10·1 answer
  • HELP ME WITH THIS ONE PROBLEM (2/2)
    6·1 answer
  • PLEASE ANSWER ASAP!! What is the equation of the line that best fits the given data?
    10·1 answer
  • Please help this is due at 8 i'll mark you brainlist
    9·1 answer
  • Candy and Hershel folded the same-size square papers.
    14·1 answer
  • Let U={x: x is an integer and 2≤x≤10}. In each of the following cases, find A,B and determine whether A⊆B,B⊆A, both or neither:
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!