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makvit [3.9K]
3 years ago
15

Solve this equation:3x^2y^2-y^7+x^4Whenx=-2y=1​

Mathematics
1 answer:
hoa [83]3 years ago
3 0

Answer:

  • 27

Step-by-step explanation:

<u>Given:</u>

  • x = - 2, y = 1

<u>Find the value of the expression:</u>

  • 3x²y² - y⁷ + x⁴ =
  • 3(-2)²(1)² - 1⁷ + (-2)⁴ =
  • 12 - 1 + 16 =
  • 27
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Explain how an expression becomes a equation?
posledela
An expression becomes an equation by adding an equal sign to the end of the expression and if there's a number on the other side of the equation. For example, 4+3 becomes an equation if you put 4+3=7. Or, 4+3=2+5. Good luck!
4 0
3 years ago
Ryan and miles are each saving money. Ryan starts with $150 in his savings account and adds $40 per week. Miles starts with $50
m_a_m_a [10]

Answer:

The answer to your question is 5 weeks

Step-by-step explanation:

Data

Ryan                                      Miles

$150                                      $50

each week = $40                  each week = $60

x = savings

y = time in weeks

Process

1.- Write an equation for Ryan savings

     x = 40y + 150

2.- Write an equation for Miles savings

    x = 60y + 50

3.- Solve the system by Equality

          40y + 150 = 60y + 50

- Solve for y

          40y - 60y = 50 - 150

                   -20y = -100

                         y = -100 / -20

                         y =  5

4.- Conclusion

After 5 weeks, they will have the same amount of money.      

8 0
3 years ago
Which expression can be used to find the surface area of the following rectangular prism? Choose 1 answer: (Choice A) A 15+15+10
xxMikexx [17]

Answer: A

Step-by-step explanation:

The rectangular prism has 6 faces  and to find the area of the faces we need to multiply the length by the width.  

the first face is: 3*2 = 6

Second face is:  3*2 =6

third face   js :  5*3= 15

fourth face is :  5*3 = 15

fifth face   is  :  5 * 2 = 10

sixth face  is :   5*2 = 10  

Now add them up

15 + 15 + 10 + 10 + 6 + 6  so A is the answer.

8 0
3 years ago
- The angle bisectors of a triangle intersect at
skelet666 [1.2K]

Answer:

Hello, There! I will help you with your Mathmatics Problem :)

<h2>Question</h2>

The angle bisectors of a triangle intersect at the:

<h2> Answer</h2>

B. Incenter

Step-by-step explanation:

The three angle bisectors of the angles of a triangle meet in a single point, called the incenter.

<em>Have a great day Ahead :)</em>

5 0
3 years ago
the sum of the measures of three angles is 200. these measures are in the ration 3:5:12. Find the measure of the three angles.
vfiekz [6]

Answer:

30, 50, and 120

Step-by-step explanation:

3/20 × 200 = 30

5/20 × 200 = 50

12/20 × 200 = 120

5 0
2 years ago
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