Answer:
The inverse of the function is
[tex]{ \underline{f {}^{ - 1}(x) = \sqrt{ \frac{x + 4}{2} } }}[/tex]
Step-by-step explanation:
let the inverse of f(x) be m:
[tex]m = {2x}^{2} - 4 [/tex]
take 4 to the left hand side ( changes sign to positive ):
[tex]m + 4 = {2x}^{2} \\ \frac{m + 4}{2} = {x}^{2} [/tex]
take a square root on all sides:
[tex] \sqrt{ \frac{m + 4}{2} } = \sqrt{ {x}^{2} } \\ \\ x = \sqrt{ \frac{m + 4}{2} } [/tex]
substitute x in place of m:
[tex] {f}^{ - 1} (x) = \sqrt{ \frac{x + 4}{2} } [/tex]
HELP PLS ILL GIVE BRAINLIEDY
NO LINKS
Answer:
70
81
95
A: 46%
Step-by-step explanation:
29+41=70
135-54=81
205-110=95
A: 95 out of 205.
Divide 95 by 205.
[tex]\frac{19}{41}[/tex] or 0.46341...
Switch to % and Round.
46%
I actually have no idea what b and c mean so good luck
Answer:70
81
95
Step-by-step explanation:
you subtract or add everything together to get an answer ex:29+41 thats how you get an answer of 70
−4/5 x (−1/2)
Im very low iq need help
Answer:
2/5
Step-by-step explanation:
Hope that helped you out :)
Answer:
2/5
Step-by-step explanation:
Two Negative signs get rid of each other, and then multiply top to top, and bottom to bottom from each fraction. In this case 4 x 1 , and 5 x 2 , and we get 4/10 after that we can simplify and get 2/5.
Based on your answer to the last question, which of the following prices of trade (that is, price of cheese in terms of beer) would allow both Sweden and Greece to gain from trade? Check all that apply.
PLEASE HELP
X/2-7=9
Show your work in details if you can, I have a hard time understanding this.
Answer:
Step-by-step explanation:
x/2 - 7 = 9 Add 7 to both sides
+7 7
x/2 = 16 Multiply both sides by 2
2*x/2 = 16*2
x = 32
You are at about the second stage of solving equations. So far what you should know is that you should add or subtract before doing multiplication or division.
Take a much simpler question
x - 8 = 10 What do you do here? You can't multiply or divide. So add
+8 8
x = 18
Now try what you have
2x - 5 = 11 Add before multiplication or division
5 5
2x = 16 Divide by 2
2x/2 = 16/2
x = 8
1/5 divided by 1? pls answer quick
Answer:
I/5 because it's itself split into 1 group
Answer:
its still 1/5
Step-by-step explanation:
You are dividing it by the amount of times it goes into itself so the answer is 1/5
true or false
IF 31×31 = 961 ,then 961 =31
44100 =220
Answer:
False
Step-by-step explanation:
It will have to be 31 x 31=961
please solve thank you
Answer:
(0, 1 )
Step-by-step explanation:
The y- intercept is where the line crosses the y- axis
On the y- axis the x- coordinate of any point is zero
From the table when x = 0 , y = 1
Then y- intercept is (0, 1 )
Margie had 4 2/5 pans of lasagna. After a party she has 1 1/2 pans left. How much lasagna was eaten at the party
Answer:
2 9/10 pans
Step-by-step explanation:
4 2/5-1 1/2=2 9/10 pans
2 and 9/10 pans of lasagna were eaten at the party.
To find out how much lasagna was eaten at the party, you need to calculate the difference between the initial amount of lasagna Margie had and the amount she has left after the party.
Initial amount of lasagna = 4 2/5 pans
Amount left after the party = 1 1/2 pans
First, we need to convert both fractions to a common denominator. The common denominator of 5 and 2 is 10.
Initial amount of lasagna = 4 x 10/10 + 2/5 x 10/10
= 40/10 + 4/10
= 44/10 pans
Amount left after the party = 1 x 10/10 + 1/2 x 10/10
= 10/10 + 5/10
= 15/10 pans
Now, subtract the amount left after the party from the initial amount to find out how much lasagna was eaten:
Amount eaten = Initial amount - Amount left
Amount eaten = 44/10 - 15/10 = 29/10 pans
You can simplify the fraction further:
Amount eaten = 2 + 9/10 pans
So, 2 and 9/10 pans of lasagna were eaten at the party.
Learn more fraction click;
https://brainly.com/question/30842189
#SPJ3
If this library has 134,000 books, find how many books are in the category of reference or other?
Answer:
134,000-X=Y
Step-by-step explanation:
you'll first have to solve how many categories there are, but since we don't know we'll use X, we already know that there is 134,000 books, but we don't know how many books are reference or other, so we use Y to represent that.
so it's
134,000-X=Y
I hope this helps
Amy scheduled herself from 7am-1pm on Sunday through Wednesday. She need to release 10am to 12pm at the last minute. She serviced all of other time for which she posted. What was her overall committed adherence percentage?
Answer:
Step-by-step explanation:
Money
Get away
You get a good job with good pay and you're okay
Money
It's a gas
Grab that cash with both hands and make a stash
New car, caviar, four star daydream
Think I'll buy me a football team
Money
Well, get back
I'm all right Jack
Keep your hands off of my stack
Money
It's a hit
I'm in the high-fidelity first class travelling set
I think I need a Lear jet
-√100/5 = ? Simply it please with full explanation. Thanks
Answer:
-2√5
Step-by-step explanation:
First simplify what's inside the radical: 100/5=20
Now we have -√20
The square root of 20 is 2√5 (because 5*4=20 and the square root of 4 is 2)
Because there is a negative the answer has to be -2√5
What is the difference between the ratio AP: PB and the ratio of AP: ABS
[tex]\\ \sf\longmapsto AP:PB[/tex]
It means the ratio of point P to each segments[tex]\\ \sf\longmapsto AP:AB[/tex]
It means ratio of one segment with respect to whole segmentBRAINIEST TO WHOEVER RIGHT
What is the equation of a line parallel to y = 4/5x + 2 that passes through (1, 2)?
Simplify Question 8 options: A) 8 B) 9 C) 6 D) 12
Answer:
Your question is incomplete ..
Determine whether the following statement is true or false.
A proper use of units can help us to determine the meaning of the slope of a linear function.
Here we want to see if the statement:
"A proper use of units can help us to determine the meaning of the slope of a linear function" is true or false.
We will see that it is true.
First, a general linear equation can be written as:
y = a*x + b
Where a is the slope, x is the independent variable, y is the dependent variable, and b is the y-intercept.
The proper use of units is:
y and b must have the same units.
x can have any type of units
The slope must have the quotient between the units of y and the units of x.
Where the proper use of units means that we have the same units on both sides of the expression.
Now, assume that we know the units of y and x.
For example:
y is miles (then b is also in miles)
x is in hours
Then, with the proper use of units, we can see that the units of the slope are:
miles/hour, or miles per hour.
With this (only knowing the units of x and y) we can see that the slope will be a speed.
So yes, the proper use of units is really important, as this has a lot of information (particularly, the meaning of the slope in a linear equation)
Thus, the statement is true.
If you want to learn more, you can read:
https://brainly.com/question/20286983
Answer and explantion please?
Answer:
x=76° (being alternate angle)
Answer:
x=76° (Alternate angle)
supposed f(x) = 2x+5 what is the value of -2f(x+1)? PLEASE THIS IS THE LAST QUESTION ILL GIVE A BRAINLIEST
Answer:
-4x+1-10
Step-by-step explanation:
-2(2x+5)=0
-4x-10=0
-4x+1-10=0
-4x-9=0
-4x=9
x=9/-4
x=-2,25
please inform if wrong
25.5 divided by 1.25
the answer is 20.4 and I hope this helps!
PLEASE HELP
write and solve an equation to find the value of X. please explain in details and show your work!
Answer:45 degrees
Step-by-step explanation:
. Evaluate the expression below for x = 4. 6(x+8) (please
Answer:
D
Step-by-step explanation:
6(x + 8) = Plug in x with 4
6(4 + 8) =
6(12) =
72
Is 0.8 equivalent to a. 8/12, b. 5/8, c. 2/3, d. 7/50, e. 4/5, f. 5/3, g. 19/25, h. 1/3, i. 2/9, j. 1/33, k. 4/9
Answer:
g. 19/25
Step-by-step explanation:
19/25 = .76, or approximately .8 -- none of the other options come as close as option g.
7. The resistance of dry human skin is about 500,000 ohms in wet, sweaty
human skin is about 1000 ohms. How much current passes across
someone's finger if they touch the leads of a 9 volt battery when their skin
is wet and dry?
Answer:
Step-by-step explanation:
1000 Ohms
R = 1000
V = 9
I = V / R
I = 9 / 1000
I = 0.009
500000 Ohms
V = 9
I = V/R
R = 500000
I = 9 / 500000
I = 0.000018
Complete the table. Round each number to given place. Number 155,999 to nearest hundred
Answer:
156,000
Step-by-step explanation:
Answer:
156,000
Step-by-step explanation:
Note the hundreds place value (underlined and bold):
155,999
Look at the digit value directly next to the given place value (tens place value). It is a 9. Because 9 is greater then 5*, you will round up:
155,999 rounded to the nearest hundreds place value is 156,000.
* Note when rounding:
If the digit to the right of the one you are finding is:
- Less than 5: Round down.
- 5 or greater: Round up.
~
Some Word Problems
1. You are making sandwiches for a large crowd. All must be identical and must contain 2 slices of bread, 2 teaspoons mustard, 3 slices salami, 2 slices of cheese, 2 lettuce leaves, and 1 slice tomato.
You have on hand
2 loaves of bread, 20 slices each 3 pounds of cheese, each pound gives 16 slices 1 quart of mustard 60 slices of salami An unlimited supply of tomatoes from your garden 3 head of lettuce, approximately 15 leaves in each
How many sandwiches can you make?
For which ingredients is (are) there no leftovers?
In case you've forgotten your kitchen conversions: 1 quart = 4 cups; 1 cup = 16 tablespoons; 1 tablespoon = 3 teaspoons
We are to find how many sandwiches can be made and the ingredients that has leftovers
You can make 20 sandwiches
lettuce has 1 leftover and tomato has unlimited leftover
Recipe for Sandwiches:
Bread = 2 slices
Mustard = 2 teaspoons
Salami = 3 slices
cheese = 2 slices
Lettuce = 2 leaves
Tomato = 1 slice
3 pounds of cheese = 16 × 3 slices = 48 slices2 loaves of bread = 20 slices × 2 = 40 slices1 quart of mustard = 4 cups × 16 tablespoons × 3 teaspoons= 192 teaspoons
lettuce = 3 heads × 15 leaves= 45 leaves
Recipe available:
Bread = 40 slices
Mustard = 192 teaspoons
Salami = 60 slices
cheese = 48 slices
Lettuce = 45 leaves
Tomato = unlimited
Bread
Recipe available / original recipe
= 40 slices / 2 slices
= 20 servings
No leftovers
Mustard
Recipe available / original recipe
= 192/2
= 96 servings
No leftovers
Salami
Recipe available / original recipe
= 60 / 3
= 20 serving
No leftovers
Cheese
Recipe available / original recipe
= 48/2
= 24 servings
Lettuce = 45/2
= 24 remaining 1
leftover = 1
Tomato = unlimited leftovers
The ingredients available can only make 20 sandwiches equally
Read more:
https://brainly.com/question/24540733
If a car takes 4 hours to cover 80 km then the average speed of the car is _____.
Step-by-step explanation:
Avg speed = total distance ÷ total time
= 80 ÷ 4 = 20 km/h
Answer:
80 divide by 4 so the final answer is 20km per hour
Step-by-step explanation:
speed measured as kilometer per hour. when it takes 80 km for 4 hour, all you have to do is divide 80 by 4.
hope this helps. good luck
Assume that an investment of $7000 earns an APR of 6% compounded monthly for 18 months.
How much interest has been earned?
Answer: sorry I wasn’t able to tell u the exact number but check out this link it should help u
Step-by-step explanation:
https://www.wyzant.com/match
Given the piecewise function shown below, select all of the statements that are true.
Answer:
f(2)=4
Step-by-step explanation:
[tex]\\ \rm\longmapsto f(x)=x^2,x>1[/tex]
2>1[tex]\\ \rm\longmapsto f(2)=2^2[/tex]
[tex]\\ \rm\longmapsto f(2)=4[/tex]
Which pattern doesn't belong?
А
B
С
D
Answer:
A is right that is my abswer
Answer:
i think the answer might be opinion C
b/c =a; c
b over c= a ; solve for c
anybody got a clue how to do this