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
zubka84 [21]
3 years ago
13

Equations is the inverse of y = x^2-5?

Mathematics
1 answer:
Fynjy0 [20]3 years ago
6 0

Answer:

Step-by-step explanation:

1.  Interchange x and y.  We get:  x = y^2 - 5

2. Solve for y:  y^2 = x + 5, so that y = ±√(x + 5)

You might be interested in
Help subtract (xsquared +43x10)-(10xsquared-5x+10 express the answer in standard form
ad-work [718]

Answer:

\large\boxed{(x^2+43x+10)-(10x^2-5x+10)=-9x^2+48x}

Step-by-step explanation:

(x^2+43x+10)-(10x^2-5x+10)\\\\=x^2+43x+10-10x^2-(-5x)-10\\\\=x^2+43x+10-10x^2+5x-10\qquad\text{combine like terms}\\\\=(x^2-10x^2)+(43x+5x)+(10-10)\\\\=-9x^2+48x

6 0
3 years ago
((PLEASE HELP ASAP!! D:)) Natasha bought a tennis racket that was marked down in price, p, by 20%. Write an expression with TWO
kumpel [21]

Answer: p - 0.2p

Step-by-step explanation:

Given the following :

Original Price of tennis racket = p

Mark down or discount on original price = 20% of original price = (20/100) × p = 0.2p

Amount after discount = Amount paid by Natasha

Amount after discount = Original price - Discount

Amount after discount = p - 0.2p

Amount paid by Natasha = p - 0.2p

7 0
3 years ago
Linear Equations, Write an equation to represent the plan and describe each variable or number in your equation represent in the
IrinaVladis [17]

Answer:

Step-by-step explanation:

8 0
2 years ago
X+2y=-1 and 4x-4y=20 solve by substitution
Illusion [34]

To do this problem you would first need to factor out a variable, which in this case I would want to do the first equation because it is isolated. Now the equations would look like this:

x = -2y - 1

4x - 4y = 20

Since we know that x is now equal to -2y - 1 we can plug it in to the x value in the second equation:

4 (-2y -1) - 4y = 20

-8y -4 - 4y

-12y - 4 = 20

-12y = 24

y = -2

Now that we know the y value plug the y value to one equation to find the x, I will be using the first equation

x + 2(-2) = -1

x - 4 = -1

x = 3

Solutions:

y = -2

x = 3

8 0
3 years ago
Y=4x-9 y=x-3 solve by substitution
Arisa [49]

Answer:

x=2

Step-by-step explanation:

x-3=4x-9

x=4x-6

-3x=-6

x=2

7 0
3 years ago
Read 2 more answers
Other questions:
  • What’s the place value of 9 in 987,164
    9·2 answers
  • Estimate the size of a crowd at an outdoor concert venue that occupies a rectangular space with dimensions of 500 feet by 1,000
    7·2 answers
  • Which number produces a rational number when added to 0.53?
    6·2 answers
  • John's age is 9 more than three times Rick's age. Which expression represents this?
    9·2 answers
  • The cost C, in dollars, to tow a car is modeled by the function C(x) = 2.5 x + 85, Where x is the number of miles towed.
    11·1 answer
  • Find the horizontal for oblique asymptote of f(x)=-3x^2+7x+1/x-2
    14·1 answer
  • 25(M-2)=650 what is M ?
    11·2 answers
  • Is x to the power of two plus x plus 1 a linear expression.
    8·2 answers
  • Y + 2 = -2x +6<br> 3x + 9y = 6
    5·1 answer
  • Shen's chocolate bar is 67% cocoa. If the weight of the chocolate bar is 59 grams, how many grams of cocoa does it contain? Roun
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!