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
Vikentia [17]
2 years ago
15

Which expression is equivalent to (x+3)+y

Mathematics
2 answers:
vodomira [7]2 years ago
6 0

Answer<em><u>:I hope my explanation helps</u></em>

Step-by-step explanation:<em>Those are the unknown variables so there would not be a way to solve the problem unless you had numbers you could cross multiply with then once you find out what those are figure out what y is and multiply (x+3)+y the numbers in the (.  ) by y then add them</em>

<em />

vova2212 [387]2 years ago
6 0
The answer is remove the parentheses. X+3+y
You might be interested in
Find the surface area of a cylinder with a diameter of 8<br> yards and a height of 9 yards.
marysya [2.9K]

Answer:

a=326.76 yd^2

Step-by-step explanation:

a= 2pi(d/2)h+2pi(d/2)^2=2pi(8/2)9+2pi(8/2)^2= 326.72564yd^2

5 0
3 years ago
[Will mark as brainliest]
Aleks04 [339]

The answer is: f^{-1} = 4x^2-3,\quad\text{for  } x \leq 0

The inverse of a function f(x) is another function, f^{-1}(x), with the following property:

f(f^{-1}(x)) = f^{-1}(f(x)) = x

In other words, the inverse of a function does exactly "the opposite" of what the original function does, and so if you compute them both in sequence you return to the starting point.

Think for example to a function that doubles the input, f(x)=2x, and one that halves it: f(x)= \frac{x}{2}. Their composition is clearly the identity function f(x)=x, since you consider "twice the half of something", or "half the double of something".

In general, to invert a function y=f(x), you have to solve the expression for x, writing an expression like x = g(y). If you manage to do so, then g is the inverse of f.

In your case, you have

f(x) = y = -\frac{1}{2}\sqrt{x+3}

Multiply both sides by -2 to get

-2y = \sqrt{x+3}

Square both sides to get

4y^2 = x+3

Finally, subtract 3 from both sides to get

x = 4y^2 - 3

Since the name of the variables doesn't really have a meaning, you can say that the inverse function is

f^{-1}(x) = 4x^2 - 3

As for the domain of the inverse function, remember what we said ad the beginning: if the original function goes from set A (domain) to set B (codomain), then the inverse function goes from set B (domain) to set A (codomain). This means that the inverse function is defined on an element in B if and only if that element belongs to the range of the original function, i.e. the set of the elements of the codomain b \in B such that there exists a \in A : f(a)=b. So, we need the range of f(x).

We know that the range of g(x)=\sqrt{x} is [0,\infty). When you transform it to g(x)=\sqrt{x+3} you simply translate the graph horizontally, so the range doesn't change. But when you multiply the function times -\frac{1}{2} you affect both extrema of the range, turning it into (-\infty,0], which you can simply write as x \leq 0

4 0
3 years ago
The circumference for a round pool that has a diameter of 16 feet would be?
Lemur [1.5K]

Answer:

50.266 or 50.27

Step-by-step explanation:

6 0
3 years ago
Help please ..someone
cupoosta [38]
B is the correct answer. When you see > which mean the line is go to the right side < is go to the left side.
Hope this helps!
7 0
3 years ago
I NEED HELP!!!
oksano4ka [1.4K]

Answer:

x= -2, y = -3

Step-by-step explanation:

1. substitute x = 4+2y in the first equation: \begin{bmatrix}2\left(4+2y\right)+y=-7\end{bmatrix}

simplify it : \begin{bmatrix}8+5y=-7\end{bmatrix}

2. isolate y in 8 + 5y = -7 --> 5y = -7 - 8 -->

3. solve for y:  5y = -15 --> y = -15/5 --> y= -3

4. solve for x: x = 4 + 2y

x = 4 + 2(-3)

x = 4 + (-6)

x = -2

6 0
3 years ago
Other questions:
  • The value of the ratio of adults to children is 2/5. The ratio of adults to children is _____.
    15·1 answer
  • What is the recombination frequency between these genes for body color and wing size? Express your answer as a percentage.
    14·1 answer
  • Solve by graphing. Round each answer to the nearest tenth.<br><br> 6x^2 + 31x = 12
    6·1 answer
  • Answer A B and C pls
    14·2 answers
  • Which of the following options have s = 70 as a valid solution ​
    14·1 answer
  • What is the factored form of this expression? <br><br>4x^2 - 12x + 9​
    14·2 answers
  • 8x=63-x what is the solution?
    14·1 answer
  • When did we learn dis
    12·1 answer
  • Find the missing angle.<br> 65<br> 50<br> 60<br> 35
    12·2 answers
  • HELPPPPPPPPPPPPP PLEASEEEEEEEEEEEEEE 35 POINTS IF ANSWERED
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!