Answer:
11:16
Step-by-step explanation:
x f(x)
-1
7
1
6
3
5
4
1
6 -1
The values in the table define the function f(x). Two points that lie on the graph of f^-1(x) are ___ and ___
Two points that lie on the graph of f^-1(x) are (7, -1) and (6,1)
How to determine the points?The table of values is given as:
x f(x)
-1 7
1 6
3 5
4 1
6 -1
Swap the points to determine the inverse function f^-1(x)
x f^-1(x)
7 -1
6 1
5 3
1 4
-1 6
The points from the above table are (7, -1) and (6,1)
Hence, two points that lie on the graph of f^-1(x) are (7, -1) and (6,1)
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If you vertically stretch the exponential function f(x) = 2* by a factor of 4, what
is the equation of the new function?
A. g(x) = 2.4*
OB. g(x) = 24x
OC. g(x)=1.2*
OD. g(x)=4-2*
If the function is vertically stretched by 4, the resulting function will be g(x) = 4(2)^x
Vertical stretch of a functionExponential function is written in standard form as y= ab^x
where
a is the base
x is the exponent
Given the following exponential function f(x) = 2^x. If the function is vertically stretched by 4, the resulting function will be g(x) = 4(2)^x
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Taseem’s loose change consists of dimes and quarters. When you ask her how many of each type of coin she has, she gives you the following clues: 0.1x+0.25y=19.9 and x+y=100 What can you conclude? Select all that apply.
The statement first, and the statement second are correct because the number of dimes is 34, and the number of quarters is 66
What is a linear equation?
It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.
If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.
We have:
0.1x + 0.25y = 19.9 and
x + y = 100
Let x = number of dimes
y = number of quarters
After solving the above system of equations by substitution method.
[tex]\rm \dfrac{398-5y}{2}+y=100[/tex]
y = 66
[tex]\rm x=\dfrac{398-5\cdot \:66}{2}[/tex]
x = 34
Thus, the statement first, and the statement second are correct because the number of dimes is 34, and the number of quarters is 66
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Help me solve this equation about completing tables and comparisons.
At the end of week 3, plant 1 is 0.6 inches taller than plant 2.
How much taller is plant 1 than plant 2 at the end of week 3?For plant 1, the height (in inches) equation as a function of the number of weeks is:
[tex]h_1(w) = 2.5 + \frac{4}{10}*w[/tex]
The height for w = 3 is:
[tex]h_1(3) = 2.5 + \frac{4}{10}*3 = 3.7[/tex]
So the height at the end of week 3 is 3.7 inches.
For plant 2 the equation is:
[tex]h_2(w) = 2.5 + \frac{1}{5}*w[/tex]
The height for w = 3.
[tex]h_2(3) = 2.5 + \frac{1}{5}*3 = 3.1[/tex]
So the height at the end of week 3 is 3.1 inches.
The difference is:
3.7 in - 3.1 in = 0.6 in
At the end of week 3, plant 1 is 0.6 inches taller than plant 2.
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I need answer quickly
Answer:
4.47
Step-by-step explanation:
4^2+b^2=6^2
16+b^2=36
-16. -16
√b^2=√20
b=4.47
HELP! Which of the following theorems allows for the ? to be found in the following diagram?
Answer:
The side splitter theorem.
Step-by-step explanation:
You have a pair of parallel lines intersecting a triangle.
look at the pic below an help pls
Answer:
y=2/3(x-3)^2+1
Step-by-step explanation:
The parent function of a parabola is y=x^2:
The transformation of this graph shows the parabola is shifted to the right 3 and up 1 so we apply that to our equation y=(x-3)^2+1
to solve the stretch factor:
y=a(x-3)^2+1
we can see when x=0 y=7 so we use this set
7=a(0-3)^2+1
7=a(-3)^2+1
-1 -1
6=9a
divide by 9
a=2/3
Neeedd helpppp !!!!!!!
Write a compound inequality that represents the given graph:
The compound inequality that represents the given graph is x < -2 or x ≥ 4. The correct option is B. x < -2 or x ≥ 4
Writing inequalitiesFrom the question, we are to write the compound inequality that represents the given graph
In the graph, we have
x < -2
or
x ≥ 4
Hence, the compound inequality that represents the given graph is x < -2 or x ≥ 4. The correct option is B. x < -2 or x ≥ 4
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write x 5/3 in radical form
2. A person takes a loan of Rs 100 000 at an interest rate of 4.2% compounded annually and deposits it in a bank that pays 8% interest compounded annually. What is the profit of his investment after 2 years?
The profit of his investment after 2 years is $8,063.60.
What is the profit of his investment?The profit earned is the difference between the amount he earned from the deposit at the bank and the interest paid on the loan.
Total value of the loan in 2 years : 100,000 x (1.042²) = 108,576.40
Total value of the amount deposited in 2 years : 100,000 x (1.08²) = 116,640
Difference = 116,640 - 108,576.40 = $8,063.60
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help me please i dont understand this
Answer:
It is not a function
Step-by-step explanation:
A function refers to a set of points/lines with this characteristic:
Each Y value has only one corresponding X value.
Meaning one X value cannot have multiple Y Values.
In this case, the X value of 2 has 2 different Y values, making it not a function.
We used these functions to represent the two sides of the equation:
f(x) = 3x
g(x) = 4x + 1
Graph the functions y = f(x) and y = g(x) on the same coordinate plane.
The solution to the system of equation graphed is (-1, -3)
Solution to system of equationGiven the system of equations graphed on the plane expressed as:
f(x) = 3x
g(x) = 4x + 1
Equate
f(x) = g(x)
3x = 4x + 1
3x - 4x = 1
-x = 1
x = -1
Determine the value of y
y = 3x
y = 3(-1)
y = -3
Hence the solution to the system of equation graphed is (-1, -3)
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Help on math please
Answer:
40cm²Step-by-step explanation:
ΔABC ≅ ΔDEF
The length AB = 28 and the length of DE = 7. Since these are corresponding sides, we know that DEF= 1/4 (ΔABC)
So, since ΔABC = 160, we know that ΔDEF will be 1/4 of that, meaning that ΔDEF is 40.
ΔDEF = 40cm²
Answer:
10 cm2
Step-by-step explanation:
The ratio per side is 28/7 = 4
When two similar figures have a ratio of 4:1, the difference between their areas is:
[tex](4)^{2} :(1)^{2}[/tex]
[tex]16:1[/tex]
That is, the dimension of the area of the largest figure is 16 times larger than the smallest figure.
So for this case:
the area of the larger figure is
ΔABC = 160 sq.cm
Then the area of the minor figure is:
ΔDEF= 160/16 = 10 sq.cm
Hope this helps
Evaluate the following expressions by substituting s = 20 and t = 6
s - 0.2t2
12.5
10.8
12.8
18.8
Answer:
The answer will be the 3rd option, 12.8
Step-by-step explanation:
I'm gonna assume that since you copy and pasted the question, the equation is actually s - 0.2t^2
Now we just need to substitute the values with their respective ones.
20 - 0.2(6)^2
Now we just have to solve :)
20 - 0.2(6)^2
= 12.8
So the answer will be the 3rd option, 12.8
Hope this helped! :D
Simplify the radical. What is the number under the radical sign when it is simplified? Do not rationalize the denominator. ∛-27/81. Please help asap^^
Answer:
[tex]-\frac{1}{\sqrt[3]{3}}[/tex]
Step-by-step explanation:
To do this we can ask ourselves "What number multiplied three times by itself is _____?" In this case we have -27 and 81. We see that -3*-3*-3=-27. We also see that 3*3*3*3=81. This means that [tex]\sqrt[3]{-27}=-3,[/tex] and [tex]\sqrt[3]{81} = 3\sqrt[3]{3}.[/tex]
The fraction we get is [tex]\frac{-3}{3\sqrt[3]{3} }[/tex], and we can simplify to get [tex]-\frac{1}{\sqrt[3]{3}}[/tex].
solve the inequality
8x - 3 ≥6x + 4
Answer:
Hello! The answer is x ≥ [tex]\frac{7}{2}[/tex].
Step-by-step explanation:
To solve this inequality, we have to get x by itself. To do so, we will rearrange the inequality. To do so, we will subtract 6x from both sides and add 3 to both sides:
8x - 3 ≥ 6x + 4
-6x +3 -6x +3
----------------------
2x ≥ 7
Now, we have to get x by itself and divide both sides by 2 to do so:
2x ≥ 7
-- --
2 2
This leaves us with:
x ≥ [tex]\frac{7}{2}[/tex]
The required solution to the inequality 8x - 3 ≥6x + 4 is x ≥ 3.5.
What is inequality?Inequality is defined as mathematical statements that have a minimum of two terms containing variables or numbers that are not equal.
To solve the inequality, we want to isolate the variable x on one side of the inequality symbol.
8x - 3 ≥ 6x + 4
Subtract 6x from both sides:
2x - 3 ≥ 4
Add 3 to both sides:
2x ≥ 7
Divide both sides by 2:
x ≥ 7/2
Therefore, the solution to the inequality is x ≥ 3.5.
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Is this a function?
yes
no
Find the product of (x − 5)2. (1 point) Group of answer choices x2 + 10x + 25 x2 − 10x + 25 x2 − 25 x2 + 25
Answer:
[tex]x^2 - 10x + 25[/tex]
Step-by-step explanation:
Hello!
Expand the square using the Distributive Property.
Expand[tex](x - 5)^2[/tex][tex](x - 5)(x-5)[/tex]Distributive x - 5 to each factor
[tex]x(x - 5) -5 (x - 5)[/tex][tex]x^2 - 5x - 5x+25[/tex][tex]x^2 - 10x + 25[/tex]The answer is [tex]x^2 - 10x + 25[/tex].
We can also use a special binomial product formula.
Formula: [tex](a - b)^2 = a^2 - 2ab + b^2[/tex]
[tex](x - 5)^2 = x^2 - 2(x)(5) + 5^2[/tex][tex](x - 5)^2 = x^2 - 10x + 25[/tex]We get the same answer both ways.
a factory uses 3/8 of a barrel of raisins in each batch of granola bars.yesterday the factory use 3/4 of a barell of rasins how many batches of granola bars did the factory make yesterday
Answer:
2
Step-by-step explanation:
3/4=6/8
(6/8)/(3/8)=2
What is the slope of the line represented by the equation 10x+5y=4?
2
1/2
−1/2
−2
The easiest way to find the slope of a line given in standard form is to put it into slope-intercept form.
Slope-intercept form: y = mx + b
---m is the slope, b is the y-intercept
10x + 5y = 4
5y = -10x + 4
y = -2x + 4/5
The slope of the line is -2.
Hope this helps!
40points! For what value of theta is csc undefined? Thank you!!
A. 0
B. 90
C. 270
D. 315
Because we can't divide by zero, csc(θ) is undefined when θ = 0°, so the correct option is A.
For what value of θ is csc(θ) undefined?First, remember that:
[tex]csc(\theta) = 1/sin(\theta)[/tex]
And also remember that we can't divide by zero.
Then the function csc(θ) is undefined for the values of θ such that sin(θ) = 0.
We know that sin(0°) = 0.
Then csc(0°) is undefined. This means that the correct option is the first one.
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Sam is installing a walkway around a rectangular flower patch in his garden. The flower patch is 12 feet long and 6 feet wide. The width of the walkway is x feet. Sam created function A to represent the total area taken up by the flower patch and walkway by multiplying the functions modeling the new total length and width. What does represent in this function
In the function, the thing that is represented is the area of the walkway along the length of the flower patch.
How to illustrate the function?From the information given, Sam created function A to represent the total area taken up by the flower patch and walkway by multiplying the functions modeling the new total length and width.
Therefore, the thing that is represented is the area of the walkway along the length of the flower patch.
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2. On Friday, the Lee family had dinner at a
restaurant. They ordered 12 cheeseburgers and
4 chili bowls for $19.40. The following Friday,
the Lee family went back to the same restaurant.
They ordered 8 cheeseburgers and 6 chili bowls
for $16.60. How much does a cheeseburger
cost?
Answer:
cheeseburger costs $1.25
Step-by-step explanation:
let x be the cost of a cheeseburger and y the cost of chilli and set up 2 simultaneous equations, that is
12x + 4y = 19.4 → (1)
8x + 6y = 16.6 → (2)
multiplying (1) by 6 and (2) by - 4 and adding the result will eliminate y
72x + 24y = 116.4 → (3)
- 32x - 24y = - 66.4 → (4)
add (3) and (4) term by term to eliminate y
40x + 0 = 50
40x = 50 ( divide both sides by 40 )
x = 1.25
the cost of a cheeseburger is $1.25
I am between 30 and 50.
The sum of my digits is 10.
My ones digit is greater than
my tens digit. I am not 37.
Who am I?
The amount of money in an account may increase due to rising stock prices and decrease due to falling stock prices. Marco is studying the change in the amount of money in two accounts, A and B, over time.
The amount f(x), in dollars, in account A after x years is represented by the function below:
f(x) = 9,628(0.92)x
Part A: Is the amount of money in account A increasing or decreasing and by what percentage per year? Justify your answer. (5 points)
Part B: The table below shows the amount g(r), in dollars, of money in account B after r years:
r (number of years) 1 2 3 4
g(r) (amount in dollars) 8,972 8,074.80 7,267.32 6,540.59
Which account recorded a greater percentage change in amount of money over the previous year? Justify your answer. (5 points)
The percentage given shows that the amount is decreasing by 8%.
How to illustrate the information?From the information given, the function is f(x) = 9,628(0.92)x. This illustrates that the amount is decreasing by 8% she compared to the previous year. This was computed as:
= 1 - 0.92
= 0.08
= 8%
For part B, the percentage change will be:
= (8,972 - 8,074.80)/8972 × 10
= 10%
Therefore, the account recorded a greater percentage change in amount of money over the previous year is account B as 20% is lore than 8%.
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Find the value for y. Geometry!! pls help!! thank youuuu
Answer:
2
Step-by-step explanation:
By the triangle proportionality theorem,
[tex] \frac{12}{2y - 1} = \frac{4y - 4}{1} \\ \\ 12 = (2y - 1)(4y - 4) \\ \\ 12 = 8 {y}^{2} - 12y + 4 \\ \\ 8 {y}^{2} - 12y - 8 =0 \\ \\2 {y}^{2} - 3 y - 2 = 0 \\ \\ (2y + 1)(y - 2) = 0[/tex]
From this, we know that y = -1/2 or 2.
However, as distance must be positive, we disregard the negative case, giving us y = 2.
Given: A, C, and F are collinear
Prove: measure of angle s= measure of angle x+measure of angle y
m∠x+m∠r+m∠y=180° (angles in a triangle add to 180°)
m∠r+m∠s=180° (angles that form a linear pair add to 180°)
m∠x+m∠r+m∠y=m∠r+m∠s (Transitive property of equality)
m∠x+m∠y=m∠s (subtraction property of equality)
m∠s=m∠x+m∠y (symmetric property of equality)
Pls help solve i will mark branliest
Answer:
1.875 liters
Step-by-step explanation:
x=1.25×32=3.752=1.875 liters
There are two conditions under which we can assume that the sample means follow a normal distribution. What are they
Two conditions under which we can assume that the sample means follow a normal distribution are as follows:
1). If the sample size is large enough, n greater than or equals 30, the sampling distribution is approximately normal regardless of the shape of the population.
2). In order to be considered a normal distribution, a data set (when graphed) must follow a bell-shaped symmetrical curve centered around the mean.
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Can someone help out on this please I’m having trouble
Answer:
Step-by-step explanation: