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
Zielflug [23.3K]
2 years ago
11

X^2-2y/y when x=20 and y=x/2

Mathematics
2 answers:
DerKrebs [107]2 years ago
4 0

Answer:

I believe its 398

Step-by-step explanation:


vagabundo [1.1K]2 years ago
3 0

Answer:

398

Step-by-step explanation:

x^2=400

substitute for y, 2y/y=(2*x/2)/(x/2)=x/(x/2)=x*(2/x)=2

400-2=398

You might be interested in
How many boys are in a class of thirty-five student if the girls outnumber boys by five
Diano4ka-milaya [45]
15 Boys because 35-5 is 30 then divide 30 by 2 to get 15
6 0
3 years ago
Read 2 more answers
Help meeeeeeeeeeee:(
Vaselesa [24]

Answer:

1/3

Step-by-step explanation:

(1/3)^2x(1/3)^-1

so, we can write this as:

1/3 x 1/3 x 3/1

if calculated by cutting, the answer is 1/3

There is also an easier way to do this,

(1/3)^2 x (1/3)^-1

as the bases are same, the powers will be added.

2+(-1)

2-1

=1

so,

(1/3)^1 or 1/3

7 0
3 years ago
Five questions 100 points! please explain how you got ur answer (look at images below)
avanturin [10]

Answer:

5. z=49

6. 4th degree trinomial

7. Ayla

8. Both are incorrect

4 0
3 years ago
Read 2 more answers
What number is equal to 12 thousand 4 tens 7 ones?
lianna [129]
12047 my dude...... ;)
8 0
3 years ago
Read 2 more answers
X2+11x-26=0<br> X2 - 25 = 0
Oksanka [162]
X² + 11x - 26 = 0
x² - 25 = 0

(x + 13)(x - 2) = 0
(x + 5)(x - 5) = 0

x = -13
x = 2
x = -5
x = 5
8 0
3 years ago
Other questions:
  • Nancy wrote the greatest number that can be made using each of these digits exactly once. 5,3,4,9,8,1. Part A what was Nancy's n
    13·2 answers
  • Can somebody please help me. I would really appreciate it
    11·1 answer
  • Explain why it makes sense for this situation to have a linear equation
    11·1 answer
  • The solution of -2x + 13 &lt;9 is
    10·1 answer
  • What is the product 2•(-7) A.-9<br> B.-2<br> C.-14<br> D.14
    15·1 answer
  • A manufacturer determines that the cost of making a computer component is ​$2.252525. Write the repeating decimal cost as a frac
    15·1 answer
  • Sketch the region enclosed by the given curves. Decide whether to integrate with respect to x or y. Draw a typical approximating
    15·1 answer
  • Help please (inequalities)
    11·2 answers
  • Plot each complex number and find its absolute value. 2 - 2i
    6·1 answer
  • What is the answer to 8 + k ≤ -3
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!