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
Kryger [21]
3 years ago
8

Tìm x,y thỏa mãn: x^2-2xy+3y-5x+7=0

Mathematics
1 answer:
STALIN [3.7K]3 years ago
7 0

I think there's an error with this question. Mind to check it back and tell me the detail?

You might be interested in
Can y’all help me on question nine?!
Fudgin [204]

Answer:

24

Step-by-step explanation:

x=2

x³+7x+2

2³+14+2

8+14+2

24

5 0
2 years ago
The endpoints of EF<br> are E(1,3) and F(-2,8).<br> Find EF.
Phantasy [73]

Answer:

EF = \sqrt{34} ≈ 5.83

Step-by-step explanation:

Calculate EF using the distance formula

d = \sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2    }

with (x₁, y₁ ) = E(1, 3) and (x₂, y₂ ) = F(- 2, 8)

EF = \sqrt{(-2-1)^2+(8-3)^2}

    = \sqrt{(-3)^2+5^2}

    = \sqrt{9+25}

    = \sqrt{34} ≈ 5.83 ( to 2 dec. places )

8 0
3 years ago
Help ASAP!!!<br> First to answer with a correct answer gets brain...
Llana [10]

Hey there!

First, let's multiply each side of the equation by 3 to get rid of the fraction \frac{2}{3}.

9 + 2x = \frac{6}{5}

Next we can multiply each side of the equation by 5 to get rid of the fraction \frac{6}{5}.

45 + 10x = 6

There's your answer!

Hope this helps!

6 0
3 years ago
You invest a total of $5800 in two investments earning 3.5% and 5.5% simple interest. Your goal is to have a total annual intere
attashe74 [19]
The annual interest that can be earned through investment of an amount at a simple interest can be calculated through the equation,
                I  = P x (i)
where I is interest, P is the principal amount, and i is the decimal equivalent of the interest. 

Let x be the amount deposited with 3.5% interest. With this representation, the amount deposited with 5.5% is 5800 - x. 

The linear equation that would represent the given scenario is,
        x(0.035) + (5800 - x)(0.055) = 283

Simplifying the equation,
 
       0.035x + 319 - 0.055x = 283

Combining like terms,
           -0.02x = -36
Dividing by -0.02,   
               x = 1800
             $5800 - x = $5800 - $1800 = y
                   y = $4000

Hence, the value that should be deposited to the 5.5% is $40000.   
4 0
3 years ago
How are fractions and decimals related?
Savatey [412]
Fractions and decimals are related in a very close way. Ways such as they are both representing a whole number. 

for example 

1/2 , 0.5 , 50% 

all three numbers have the same value but are expressed in a different format. all three represent the same whole number. 

another example would be

1/4 , 0.25 , 25% 

hopefully this helped. and or makes sense. 

LET ME KNOW :p



7 0
3 years ago
Other questions:
  • Let # stand for square root.... what is an equation that is equal to #^3#5 ?
    14·2 answers
  • Can anyone tell me what the answer is? PLEASEEE!!
    7·1 answer
  • Which of the following descriptions is representative of the data presented in the graph
    6·1 answer
  • The length of a rectangle is two feet greater than twice its width. If the perimeter is 25 feet, find the width
    12·1 answer
  • Which expression is equal to the expression below?<br><br> (7 x 2)^7
    13·2 answers
  • If you have one box of eggs and multiply you amount of boxes by 3, how much eggs will you have?
    11·1 answer
  • Pls help me ima mark BRAINLIST
    6·2 answers
  • Answer fasttt plsssssss
    8·1 answer
  • In the 30-60-90 triangle below, side s has a length of__and side q has a
    14·1 answer
  • What is the value of the function f(x) = 2x + 3 for an input value of 3? (a)6(b) 12(c) 3 (d)9
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!