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
Neko [114]
2 years ago
10

Please can someone help me with this question.

Mathematics
1 answer:
saw5 [17]2 years ago
8 0

Answer:

Step-by-step explanation:

You might be interested in
-1.398 = 2.2 + n/-5.53<br> Does this look good so far? <br> -1398 = 2200 + n/5530 - 2200
insens350 [35]

Answer:

  n = 19.89694

Step-by-step explanation:

You can work the problem using decimal numbers. There is no need to convert everything to integers. Trying to do so just gets you in trouble.

Subtract 2.2 from both sides:

  -1.398 -2.200 = n/-5.53

  -3.598 = n/-5.53

Now, multiply both sides by -5.53:

  (-5.53)(-3.598) = n = 19.89694

_____

The one rule that cannot be violated in algebra is that <em>you must do the same thing to both sides of the equation</em>.

_____

Your "solution" so far has a couple of errors. The first is that you have apparently multiplied all of the numbers by 1000. Unfortunately, when you multiply a denominator by 1000, it is the same as dividing by 1000. So, you have multiplied the left side by 1000, multiplied one term on the right by 1000 and divided another term on the right by 1000. This turns the equation into something different than what you started with, and will give a wrong answer.

The second error is that you have subtracted 2200 only from the right side. This, too, will turn the equation into something different than what you started with, and will give a wrong answer.

7 0
3 years ago
Solving equations (algebra). Thank you!
LenKa [72]

Answer:

\large\boxed{\dfrac{1}{x^2}+x^2=23}

Step-by-step explanation:

\left(\dfrac{1}{x}+x\right)^2=25\qquad\text{use}\ (a+b)^2=a^2+2ab+b^2\\\\\left(\dfrac{1}{x}\right)^2+2(x\!\!\!\!\diagup)\left(\dfrac{1}{x\!\!\!\!\diagup}\right)+x^2=25\\\\\dfrac{1}{x^2}+2+x^2=25\qquad\text{subtract 2 from both sides}\\\\\dfrac{1}{x^2}+x^2=23

5 0
3 years ago
Help fast!! (no links please.)
amid [387]

Answer:

C) 3

Step-by-step explanation:

Plug in the values on c and d and solve

((3)^2 + (2)^2) - 2((3)^2 - (2)^2)

Solve inside the parenthesis first

(9+4) - 2(9-4) = (13) - 2(5)

Distribute the 2 and solve

13 - 10 = 3

4 0
2 years ago
What is the area of a trapezoid if the h=24in b1=42in and b2=36in
Minchanka [31]

Answer:

936

Step-by-step explanation:

3 0
2 years ago
Which of the following services will be provided by a full-service broker but not by a discount broker? I. Research of potential
Goshia [24]
The answer is “A”
•Research of potential investments opportunities
And
•recommendation of investments
5 0
3 years ago
Read 2 more answers
Other questions:
  • Is 0.4 over 0.8 a rational or irrational number
    10·1 answer
  • 20 points if you can answer this expression and give me 2 equivalent expressions SHOW YOUR WORK PLEASE!!! 32(10j + 17 + 5j)
    7·1 answer
  • I need help <br> 5=6(1q-5)-19
    7·2 answers
  • Help!! Identify the oblique asymptote of f(x) = quantity 2 x squared plus 3 x plus 8 over quantity x plus 3 . (1 point)
    11·1 answer
  • Suppose that an automobile manufacturer advertises that its new hybrid car has a mean gas mileage of 50 miles per gallon. You ta
    12·1 answer
  • Geometry geometry help
    15·1 answer
  • Are the two triangles congruent ? Please answer correctly !!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!
    10·2 answers
  • In order for students to have a club at school they need a minimum of 27 students. If there are 19
    7·1 answer
  • PLS ANSWER THIS ITS DUE SOON
    12·1 answer
  • Can i have help with these two questions. Im not sure where i went wrong
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!