Select the correct answer.
Consider this function.
f(x) = 2x -2
Which graph represents the inverse of function f?
A. The first graph (Y)
B. The second graph (W)
C.The third graph (X)
D. The last graph (Z)
Answers
Answer:
option
Step-by-step explanation:
THE THIRD GRAPH(X)
Related Questions
What is the absolute value of the number plotted on the number line?.
A. -1.75
B. -1.25
C. 1.25
D. 1.75
Answers
Answer:
D. 1.75
Step-by-step explanation:
Absolute value cannot be negative, so that gets rid of A & B. The point is at -1.75 so it has to be D.
2 varieties of gift wrap paper are to be mixed. The assortment will cost $7. One sells for 50 cents a sheet the other for 25 cents a sheet. the number of 50 cents sheets is 3 times the number of 25 cent sheets. how many of each type of sheet should be included in the package
Answers
Given:
One variety of gift wrappers sells for 50 cents a sheet the other for 25 cents a sheet.
In dollars,
One variety of gift wrappers sells for 0.5 dollars a sheet the other for 0.25 dollars a sheet.
The assortment will cost $7.
Let x be the number of 50 cents sheets.
Let y be the number of 25 cents sheets.
It is also given that,
The number of 50 cents sheets is 3 times the number of 25 cent sheets.
x=3y ........ (1)
0.5x+0.25y=7 ....... (2)
Substitute (1) in (2) we get,
[tex]\begin{gathered} 0.5(3y)+0.25y=7 \\ 1.5y+0.25y=7 \\ 1.75y=7 \\ y=\frac{7}{1.75} \\ y=4 \end{gathered}[/tex]Hence, x=3(4)
x=12
So, the number 50 cents sheets are 12 and the number of 25 cents sheet is 4.
YAbisects ZXYZ. Which statement is false?A. YXYZB. ZXYA and ZZYA each measure 63º.C. ZXYA: ZZYAD. The total measure of ZXYA and ZZYA is 126º.
Answers
Given that
[tex]\vec{YA}\text{ bisesects}\angle XYZ[/tex]Then,
[tex]\begin{gathered} \angle XYA\text{ and }\angle ZYA\text{ each measure 63degr}ees \\ \angle XYA\cong\angle ZYA \\ \text{ The total measure of }\angle XYA\text{ and }\angle ZYA\text{ }is\text{ }63+63=126^{\text{0}} \end{gathered}[/tex]Therefore, the statement
[tex]\begin{gathered} \bar{YX}\cong\bar{YZ}\text{ is false} \\ The\text{ answer is Option A} \end{gathered}[/tex]The shaded portion in each glass represents an amount of grape drink Martin's glass of grape drink has a weaker tasting grape flavor than Tia's glass of grape drink.
Answers
The stronger flavor of grape is in Tia's glass.
Given,
Martin's glass of grape drink has weaker tasting grape flavor
Tia's glass of grape drink has stronger tasting grape flavor
3 ounces of water is added to Martin's glass
One table spoon of grape mix is added to Tia's glass
We have to find the glass which contain the stronger grape flavor
Already in Martin's glass flavor is low. When we add water again to his glass, the flavor will again dissolves with water.
In Tia's glass grape flavor is stronger. By adding one tablespoon of grape mix the flavor will become more stronger.
That is,
The stronger flavor of grape is in Tia's glass.
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If P(x) = 5x and R(x) = 3x - 7, find P(x) • R(x).
P(x)•R(x)=___
Answers
According to the factor theorem, if "a" is any real integer and "f(x)" is a polynomial of degree n larger than or equal to 1, then (x - a) is a factor of f(x) if f(a) = 0.Finding the polynomials' n roots and factoring them are two of their principal applications.
Calculate p(x(*r(x)?
The factorization of 62 + 17x + 5 by dividing the middle word can be used as an illustration of the factor theorem.In this example, two numbers, "p" and "q," can be discovered in such a way that p + q = 17 and pq = 6 x 5 = 30.One can then obtain the factors after that. A factor of | A | is (x - a) if each member of matrix A is a polynomial in x and | A | vanishes for x = a.When p(x) is divided by xc, the result is p if p(x) is a polynomial of degree 1 or higher and c is a real number (c).For some polynomial q, p(x)=(xc)q(x) if xc is a factor of polynomial p.Consequently, p(c)=(cc)q(c)=0, indicating that c is a polynomial zero.
I This theorem comes in very handy when we need to determine the determinant's value in "factors" form.
p(x) =5x
r(x) = 3x - 7
p(x)×r(x) =
=5x(3x-7)
5x² - 7
2×15x²-1
= 30x
p(x)*r(x) = 30x
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sat scores have a mean of 500 and standard deviation of 200. act scores have a mean of 20 and a standard deviation of 5. suppose that student a has an sat score of 600, and student b has an act score of 25. using z-scores, which student had a better college entrance exam score?
Answers
‘B’ had a better college entrance exam score due to the higher value of Z-Score.
The Z-score of an observation is the number of standard deviations it falls above or below the mean. Standard deviation is a statistic that is used to measure the dispersion of a dataset relative to its mean and is calculated by doing the square root of the variance.
[tex]Z=\frac{(observation-mean)}{standard deviation}[/tex]
By putting the values as given in the question,We get,
A's score is (600 - 500) / 200 = 0.5 standard deviation i.e. above the mean.
B's score is (25 - 20) / 5 = 1 standard deviations i.e. above the mean.
Thus ‘B’ had a better score.
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the angle of depression of the light to the nearest minute is
Answers
Answer
θ = 37° 30'
Explanation:
The angle of depression has the same measure as the angle of elevation, so a trigonometric function that related the sides of the triangle and the angle of elevation θ is tangent. Then:
[tex]\text{tan }\theta\text{ =}\frac{39.57}{51.56}[/tex]Therefore, the value of θ is:
[tex]\begin{gathered} \tan \text{ }\theta\text{ = 0.7674} \\ \theta=\tan ^{-1}(0.7674) \\ \theta=37.50 \end{gathered}[/tex]So, in grades and minutes, we get:
θ = 37.50 = 37° 30'
Therefore, the angle of depression is 37° 30'
A kite is gliding 74 feet above sea level. There is a stingray coasting 7 feet below sea level. What is the vertical distance between the kite and stingray.
Answers
The vertical distance between the kite and stingray is 81 feet.
Given that, a kite is gliding 74 feet above sea level. There is a stingray coasting 7 feet below sea level.
What is the vertical distance?Vertical distance or vertical separation is the distance between two vertical positions. Many vertical coordinates exist for expressing vertical position: depth, height, altitude, elevation, etc.
The vertical distance between the kite and stingray is
74-(-7)
= 74+7
= 81 feet
Therefore, the vertical distance between the kite and stingray is 81 feet.
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help me plssssssssssssss
Answers
Answer:)0.3 I Think
Step-by-step explanation:
1.8/6
The answer is:
10.8 cm
Explanation:
6 × 1.8 = 10.8
- firstly, remove the decimal point
- Secondly, multiply regularly 6 by 18
- You'll get 108 as an answer
- Take back the decimal point one to the left because you took it one to the right before, so you will have to do the inverse of the previous action
Good luck
Which of the following is equivalent to 3/8 A) 0.3 B) 0.45 C) 0.6 D) 0.375
Answers
SOLUTION
Given the question in the image, the following are the solution steps to answer the question.
STEP 1: Write the given fraction
[tex]\frac{3}{8}[/tex]STEP 2: Convert to decimal
[tex]\frac{3}{8}=0.375[/tex]Hence, the equivalent is 0.375
Help please i need it for a grade
Answers
Answer:
(3,13 ) & (-1,5)
Step-by-step explanation:
a. 2x + 7 = x^2 + 4
b. move all terms to the left side and set equal to zero. then set each factor equal to zero. which gives you the x values 3, -1
c. substitute x with the x values to get y. 2(3) + 7 = -1^2 + 4
d. the solution is (3,13 ) & (-1,5)
Please help me asapppppp
Answers
Explanation:
To find circumference we need the radius, however in the figure they gave you the diameter and the diameter is two times the radius d=2r, from the figure the diameter equals 20 so we substitute to get 20=2r, dividing both sides by two we get that r=10 ft
Now we substitute in our circumference formula C=2 πr
So C=2*3.14*10
C=62.8 ft
jessica jogs on a path that is 25 meters long to get a park that is south of her location.it takes her 2.5hrs. what is her velocity
Answers
Answer:
10 meters per hour
Step-by-step explanation:
Velocity = Distance / Time
Austin makes a
commission of 20% on
his sales each week.
Last week, his sales
were $520. How much
was Austin’s
commission?
Answers
Answer:
His commission is 104$.
Step-by-step explanation:
1. Find 20% of 520$, which is 104$.
That's the answer! Please mark me as the brainliest!
Solve for y:
2x+4y=32
Answers
Answer:
Step-by-step explanation:
2x+4y=32
Get Y on one side of equation by itself
(subtract 2x on both sides)
leaves 4y = 32 - 2x
Divide by 4 to get Y alone (without coefficient)
4y = 32 - 2x
4
y = 8 - 1/2x
For the equation, complete the given ordered pairs.Need help solving the last order pair.
Answers
Hello!
First, let's remember:
In an ordered pair, we will have two variables represented as (x, y).
In the first two ordered pairs, the exercise informed the value of x. In the third ordered pair, it informs the value of y. We will solve it in a similar way, look:
[tex]\begin{gathered} 4x-y=7 \\ 4x-7=7 \\ 4x=7+7 \\ 4x=14 \\ x=\frac{14}{4}=\frac{7}{2} \end{gathered}[/tex]Answer:x = 7/2 or also x = 3.5.
A scientist needs 60 milliliters of buffer solution for each of 15 experiments. She has a bottle that contains 730 milliliters of buffer solution. Is there enough buffer solution in the bottle for all 15 experiments?
Answers
Xavier has a bag of 20 marbles. 8 are blue, 7 are red, and 5 are green. Xavier pulls out a marble, records what color it is, and puts it back. He then selects another marble and records its color What is the probability of pulling out a blue marble and then a green marble?
Help please
Answers
Answer:
.1
We have 20 marbles.
Probability of blue marble = 8/20 = .4
Since the blue marble is put back, we still have 20 marbles.
Probability of green marble = 5/20 = .25
Multiplying these probabilities:
.4 × .25 = .1
Use integers or fractions for any numbers in the expression.
Answers
Solution:
Consider the following injective function:
[tex]f(x)=\frac{3x+6}{x-5}[/tex]this is equivalent to:
[tex]y=\frac{3x+6}{x-5}[/tex]by cross-multiplication, this is equivalent to:
[tex](x-5)y\text{ = 3x+6}[/tex]now, applying the distributive law, we get:
[tex]xy-5y\text{ = 3x+6}[/tex]this is equivalent to:
[tex]xy\text{ -5y -3x = 6}[/tex]Applying the common factor, we get:
[tex]x(y-3)\text{ -5y = 6}[/tex]this is equivalent to:
[tex]x\text{ (y-3)}=\text{ 6+5y}[/tex]solving for x, we get:
[tex]x\text{ = }\frac{6+5y}{y-3}[/tex]so that, we can conclude that the correct answer is:
[tex]f^{-1}(x)=\frac{6+5x}{x-3}[/tex]Cassie baked 24 cookies with 4 scoops of flour. How many scoops of flour does Cassie need in order to bake 42 cookies?
Answers
Answer:
7
Step-by-step explanation:
24 with four scoops is 6 with one scoop and 6 times 7 is 42 so 1 times 7 is 7 so the answer is 7 scoops
find the measures of the copleentary angles that satisfy each case angles have equal measure
Answers
Answer:
The measures of this complementary angles is:
45°
Step-by-step explanation:
Complementary angles sum 90°
∡A + ∡B= 90°
∡A = ∡B
Then:
∡A + ∡A = 90°
2∡A = 90°
∡A = 90/2
∡A = 45°
∡B = 45°
Using the information in the diagram determine the height of the tree
Answers
Given
To find the height of the tree.
Explanation:
It is given that,
From the figure, it is clear that ΔABC and ΔADE.
That implies,
[tex]\begin{gathered} \frac{AD}{AB}=\frac{AE}{AC}=\frac{DE}{BC} \\ \frac{x}{2x}=\frac{y}{2y}=\frac{DE}{200} \\ \frac{1}{2}=\frac{DE}{200} \\ DE=\frac{200}{2} \\ DE=100 \end{gathered}[/tex]Hence, the height of the tree is 100ft.
A teacher kept track of what students consumed at a school picnic. For three grades, the ratios of the amount of water consumed to the amount of fruit juice consumed were equivalent. Complete the table.
Answers
Based on the ratios of water consumed to the fruit juice consumed, the missing figures in the completed table would be:
24 water : 28 gallons of fruit juice 18 water : 21 gallons of fruit juice How to find the ratios?The ratio of water gallons consumed to fruit juice gallons is equivalent which means that at their simplest, they will always have the ratio of 6 : 7 as is the case in the 5th grade.
The missing ratio for Juice in 6th grade is:
= (Water gallons x Juice gallons in 5th grade) / water gallons in 5th grade
= (24 x 7) / 6
= 28 gallons of fruit juice
The missing ratio for water in 6th grade is:
= (18 x 7) / 6
= 21 gallons of fruit juice
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any given season, a soccer team plays 65 % of their games at home.
When the team plays at home, they win 83 % of their games.
When they play away from home, they win 26 % of their games.
find the probability the team wins with explanation
Answers
Based on the percentage of games played at home by the team, and the percentage win rate, the probability that the team wins is 63.05%
How to find the probability the team wins?First, find the probability that the team wins playing at home:
= Percentage win rate at home x Percentage played at home
= 83% x 65%
= 53.95%
Then find the probability of winning away:
= Percentage win rate away x Percentage played away
= 26% x (1 - 65%)
= 9.1%
The probability the team wins is:
= 53.95 + 9.1
= 63.05%
In conclusion, the probability of the team winning at home and the probability of them winning away, can be summed up to find the probability of the team winning which is 63.05%.
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solve the following proportionx 2— = —32 8x=
Answers
We have to solve for x:
Multiply both sides of the proportion by 32:
[tex]\frac{x}{32}(32)=\frac{2}{8}(32)[/tex][tex]x=\frac{64}{8}[/tex]Simplify:
[tex]x=8[/tex]Whileat the fruit stand, ramon bought 3 punds of apples that cost $0.89 per pound and 4 cantaloupes that each cost $1.09. about how much money did he spend, not including tax?
Answers
The total money spent on fruits is $7.03
While at the fruit stand, Ramon bought the following fruits,
3 pounds of apples that cost $0.89 per pound
4 cantaloupes that each cost $1.09
So, the total amount he spent on the materials he bought without including taxes is,
Total money spent = 3 x ( 0.89 ) + 4 x ( 1.09 )
= 2.67 + 4.36
= 7.03
The total money spent on fruits is $7.03
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Represent the following sentence as an algebraic expression, where “a number” is the letter x. You do not need to simplify 3 is multiplied by the difference of seven and a number
Answers
The given statement can be written algebraically as follow:
3(7 - x)
3 means '3 is multipled by' and the factor (7-x) means 'the difference of seven and a number'
What is the exchange rate? Show your work.
1 US dollar = _________ euro.
Answers
The current exchange rate is 1 US dollar = 1 euro.
What is an exchange rate?The exchange rate of a currency is the worth of one currency in respect to another, or the rate at which one currency will be exchanged for another.
The foreign exchange market, commonly known as Forex or FX, is a global decentralized market for currency trading that determines the exchange rates of such currencies.
A currency exchange rate is the rate at which one currency can be exchanged for another. In other words, the exchange rate is the price of one currency in terms of another.
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Give two examples of each type of number: real, natural, integers, rational and irrational.
Answers
The following examples are shown below:
Natural numbers: 2, 9Integers: - 3, 0Rational numbers: 5 / 7, - 13 / 8Irrational numbers: √5, πReal numbers: 0, √6What kind of real numbers does exist?In this problem we have to present five types of real numbers, which are defined and shown below:
Natural numbers - Smallest subset of real numbers: N = {1, 2, 3, 4, ...}. Examples: 2, 7, 9Integers - Combination of the subset of real numbers and another subset N' = {0, - 1, - 2, - 3, - 4, ...}. Examples: - 5, - 3, 0, 5, 8Rational numbers - Subset of all real numbers of the form m / n, where m and n are integers and n is a non-zero integer. Natural numbers and integers are also rational numbers. Examples: 5 / 7, - 9 / 11, 19 / 3, - 10 / 7Irrational numbers - Subset of all real numbers that are not rational. This subset is the complement of the subset of rational numbers. Examples: √2, - e, πReal numbers - Set of all rational and irrational numbers. Examples: - 5, 0, 2, 19 / 3, √3To learn more on real numbers: https://brainly.com/question/551408
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Help, I don’t get this
Answers
The total earnings for the week for the same wage per hour is $501.6.
In mathematics, it deals with numbers of operations according to the statements. There are four major arithmetic operators, addition, subtraction, multiplication and division,
Here,
For 5 of working earnings is $76
Hourly rate = 76 / 5 = $15.2 per hour
Now for 33 hours of working in a week,
Earning = 15.2 * 33 = $501.6
Thus, the total earnings for the week for the same wage per hour is $501.6.
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