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
Drupady [299]
3 years ago
11

the length of a rectangle is 5ft longer than it's width. if the perimeter of the rectangle is 34ft, find it's area?

Mathematics
1 answer:
galina1969 [7]3 years ago
7 0
2X + (2X+10)= 34

Width is 6, Length is 11

6 x 11 is 66

Area is 66
You might be interested in
What’s the correct answer for this?
andreev551 [17]

Answer:

the first one

Step-by-step explanation:

hope this helps

6 0
3 years ago
Read 2 more answers
Find the inverse f^-1(x) if f(x)=x+2
stiks02 [169]

Answer:

f^-1(x) = x - 2

Step-by-step explanation:

To find the inverse of a function in terms of x and y, you would sway x and y in the function. We can rewrite f(x) = x + 2 as y = x + 2, since f(x) is basically y in a function. The inverse of y = x + 2 would be x = y + 2. Now, solve for y.

x = y + 2

-2 both sides.

x - 2 = y

y = x - 2

The inverse of y = x + 2 would be y = x - 2, so the inverse of f(x) = x + 2 would be f^-1(x) = x - 2 (f^-1(x) means the inverse of f(x)).

f^-1(x) = x - 2

I hope you find this helpful. :)

3 0
3 years ago
What does U mean in geometry
Nata [24]

Answer:

So the union of sets A and B is the set of elements in A, or B, or both. The symbol is a special "U" like this: ∪ Example: Soccer = {alex, hunter, casey, drew}

Step-by-step explanation:

3 0
3 years ago
What are the domain and range of the function f(x)= square rootx-7+9?
FinnZ [79.3K]

Answer:

Domain: [7, ∞)

Range: [9, ∞)

Step-by-step explanation:

1) This question may be easily answered if you are aware of the shape of the graph of sq. root x, and the effect of translations to graphs.

1. x - 7 means that the original graph is translated 7 units in the positive direction of the x-axis (ie. to the right), thus the minimum value for x is also shifted from 0 to 7

2. the + 9 means that the graph is translated 9 units in the positive direction of the y-axis (ie. up), thus the minimum y-value is also shifted from 0 to 9

3. We know that the graph will continue to infinity, both in the x- and y-direction

Thus, the domain would be [7, ∞) and the range [9, ∞)

2) Another way to think about it is to ask yourself when it would make sense for the graph to exist. For this, we must consider that you cannot take the square root of a negative number.

Thus, if we have the square root of (x - 7), for what value of x would (x - 7) be negative? If x = 7:

x - 7 = 7 - 7 = 0

Therefor, any x-value less than 7 will lead to a negative answer, which wouldn't be practical. Any value equal to or greater than 7 will lead to a positive answer, thus the permissible values for x are from 7 to infinity, and so the domain is [7, ∞) (note that square brackets are used for 7 as it is included in the domain, whereas infinity is always closed with round brackets).

If we have already found the domain, then we can simply substitute the values for this into the equation to obtain the range (note that this will work for a square root function, however some functions will have turning points and in this case you must calculate the range based on the turning points as well as the minimum and maximum x-values):

if x = 7: y = sq. root (7-7) + 9

= 9

This is the minimum value for y

if we have x = ∞, then the y value will also be infinitely great, therefor the maximum y-value is also ∞. Thus, the range is [9, ∞).

These questions are much easier to solve however if you are already aware of the basic graph and the effect of dilations, translations and reflections so that you may visualise it better.

4 0
3 years ago
Evaluate the expression when x = 12 and y = 2.x3y
harina [27]

12 \times 3 \times 2 = 72
12×3= 36
36×2=72
5 0
3 years ago
Read 2 more answers
Other questions:
  • there are 3 consecutive even integers .if twice the first integer added to the third is 268,222, find all three integers
    14·1 answer
  • Find the value of y and measure of m<3
    10·1 answer
  • Which line segment is a chord of J in the diagram below?
    6·1 answer
  • A company specializing in building robots that clean your
    11·2 answers
  • PPLLLLZZZZZ HHHEEELLLLPPPP
    5·1 answer
  • The answer right here
    13·1 answer
  • In how many revolutions can bicycle wheel of diameter 4.9m cover a distance of 46.2km?
    10·1 answer
  • A glass is
    14·1 answer
  • Please help!!! 100 points!
    14·1 answer
  • (10x-11) + (3x-2) + (3x+1) = 180
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!