Answer:
2
Step-by-step explanation:
Step 1 write the equation: y=3x-1
Step 2 Plug 1 in: y=3(1)-1
Step 3 Multiply 3 and 1: y=3-1
Step 4 Subtract 3 from 1: y=2
Answer:
-4
Step-by-step explanation:
The actual answer is -4! Hope that helps.
On a coordinate plane, a curved line labeled f of x with a minimum value of (1.9, negative 5.7) and a maximum value of (0, 2), crosses the x-axis at (negative 0.7, 0), (0.76, 0), and (2.5, 0), and crosses the y-axis at (0, 2).
Which statement is true about the graphed function?
F(x) < 0 over the intervals (-∞, -0.7) and (0.76, 2.5).
F(x) > 0 over the intervals (-∞, -0.7) and (0.76, 2.5).
F(x) < 0 over the intervals (-0.7, 0.76) and (2.5, ∞).
F(x) > 0 over the intervals (-0.7, 0.76) and (0.76, ∞).
The statement that is true about the function is:
F(x) < 0 over the intervals (-∞, -0.7) and (0.76, 2.5).What is the function of a graph?A function, in mathematics, an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable (the dependent variable).
Given:
The minimum value of the curve = (1.9, -5.7),
The maximum value = (0, 2)
The point the function crosses the x-axis (the x-intercept) = (-0.7, 0), (0.76, 0), and (2.5, 0)
The point the function crosses the y-axis (the y-intercept) = (0, 2)
The given points can be plotted using MS Excel, from which we have:
F(x) is less than 0 over the interval from x = -∞, to x = -0.7, and the interval from x = 0.76 to x = 2.5.
Hence, the correct option is A.
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What is the value of 32 tens
Answer:
32 x 10
Step-by-step explanation:
Equals 320
There are 30
in a
Passengers
bus. 2/3 of them are men then
the percentage of women
is ?
Answer:
33.33....
Step-by-step explanation:
If 2/3 of them are men, then 1/3 are women. I/3=0.333....
To find the percent you multiply by 100 and get 33.3333 and you can write then however your system requests a repeating decimal.
I need help plz it is just the help with the one that say write each one as a decimal
Answer:
1) 0.4552) 0.1253) 2.333Step-by-step explanation:
The explain in the photos above
I hope that is useful for you :)
Given f(x) and g(x) = f(x + k), use the graph to determine the value of k.
Two lines labeled f of x and g of x. Line f of x passes through points 0, 4 and negative 4, 0. Line g of x passes through points negative 9, 0 and negative 4, 5.
−4
−5
4
5
Answer:
The answer is definetely 5.
Step-by-step explanation:
K = the distance from f(x) to g(x)
And I took the test and got a 100%. Ik ik I really am a MATH MAESTRO, it's in the name. Anyways Good luck! I hope this helped!
Answer:
5
Step-by-step explanation:
prove that there exist only five regular polyhedron
To prove that there are only these five regular polyhedra, we can consider Euler's polyhedron formula, which states that for any convex polyhedron, the number of vertices (V), edges (E), and faces (F) satisfy the equation V - E + F = 2.
Proving there exist Five Regular PolyhedronThe five regular polyhedra, also known as the Platonic solids, are the only convex polyhedra where all faces are congruent regular polygons, and the same number of polygons meet at each vertex.
The five regular polyhedra are:
1. Tetrahedron: It has four triangular faces, and three triangles meet at each vertex.
2. Cube: It has six square faces, and three squares meet at each vertex.
3. Octahedron: It has eight triangular faces, and four triangles meet at each vertex.
4. Dodecahedron: It has twelve pentagonal faces, and three pentagons meet at each vertex.
5. Icosahedron: It has twenty triangular faces, and five triangles meet at each vertex.
To prove that there are only these five regular polyhedra, we can consider Euler's polyhedron formula, which states that:
"for any convex polyhedron, the number of vertices (V), edges (E), and faces (F) satisfy the equation V - E + F = 2".
For regular polyhedra, each face has the same number of sides (n) and each vertex is the meeting point of the same number of edges (k). Therefore, we can rewrite Euler's formula for regular polyhedra as:
V - E + F = 2
=> kV/2 - kE/2 + F = 2
=> k(V/2 - E/2) + F = 2
Since each face has n sides, the total number of edges can be calculated as E = (nF)/2, as each edge is shared by two faces. Substituting this into the equation:
k(V/2 - (nF)/2) + F = 2
=> (kV - knF + 2F)/2 = 2
=> kV - knF + 2F = 4
Now, we need to consider the conditions for a valid polyhedron:
1. The number of faces (F), edges (E), and vertices (V) must be positive integers.
2. The number of sides on each face (n) and the number of edges meeting at each vertex (k) must be positive integers.
Given these conditions, we can analyze the possibilities for different values of n and k. By exploring various combinations, it can be proven that the only valid solutions satisfying the conditions are:
(n, k) pairs:
(3, 3) - Tetrahedron
(4, 3) - Cube
(3, 4) - Octahedron
(5, 3) - Dodecahedron
(3, 5) - Icosahedron
Therefore, there exist only five regular polyhedra.
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These little ghosts are going trick-or-treating. Can you draw a line that touches every house exactly once and ends up back where it started? The line can’t cross itself, can’t go diagonally, and has to touch the houses in this order: large-medium-small-large-medium-small. Along the way you’ll collect SOME of the candies in your bags. Only count the candies in your path! *To make a series of straight lines, go to Insert>Shapes> line.
Answer:
it is the pumkin
Step-by-step explanation:
I got 100 in quiz
Determine the quadrant in which the terminal side of the given angle lies.
115°
A. I
B. II
C. III
D. IV
Answer:
\( \frac{x}{115}= \frac{2\pi}{360}\)
And solving for x we got:
\( x= \frac{115}{160} 2\pi = \frac{23}{36}pi= 0.639 \pi\)
since the value obtained is higher than \(\pi/2\) and lower than \( \pi\) we can conclude that this angle would be in the second quadrant.
B. II
Step-by-step explanation:
In order to solve this problem we can write the angle in terms of pi using the following proportion rule:
\( \frac{x}{115}= \frac{2\pi}{360}\)
And solving for x we got:
\( x= \frac{115}{160} 2\pi = \frac{23}{36}pi= 0.639 \pi\)
since the value obtained is higher than \(\pi/2\) and lower than \( \pi\) we can conclude that this angle would be in the second quadrant.
B. II
Suppose 15% of $x$ equals 20% of $y$. What percentage of $x$ is $y$ ?
Answer:
Step-by-step explanation:
Determine the probability: It will definitely turn dark tonight.
a. 0.5
b. 1
c. 0.30
d. 0.67
The probability of 'It will definitely turn dark tonight' would be 1.
So option (B) is correct.
What is a probabilty?
Probability is the branch of mathematics concerning numerical descriptions of how likely an event is to occur, or how likely it is that a proposition is true. The probability of an event is a number between 0 and 1, where, roughly speaking, 0 indicates the impossibility of the event and 1 indicates certainty.
If by "likelihood" probability, the word definitely implies the probability would be 1, certainty.
Because definitely after daylight, the light will turn dark at the night.
So the probability would be 100% or 1.
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Find the quotient of 10^-4/10^2
The quotient of 10⁻⁴/10² is 10⁻⁶
How to Find the quotient of 10⁻⁴/10²?Quotient is the result obtained by dividing one quantity by another. It represents the value that is obtained after division.
For example, if you divide 20 by 2, the quotient is 10 because 20 divided by 2 equals 10.
Division law states that:
10ᵃ / 10ᵇ = 10ᵃ⁻ᵇ
In this case have:
10⁻⁴/10² = 10⁻⁴⁻² (Division law)
10⁻⁴/10² = 10⁻⁶
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find the sum
-84 + (-11)
Answer:
-84+(-11)= -95
-84 + (-11) = -84 - 11 = -95
By the commutative property, adding a negative number is the same as subtracting that number as a positive; therefore, something + (-11) = something - 11. After changing the equation from -84 + (-11) to -84 - 11, we use regular addition properties, adding the tens place and ones place to get -95.
1.- Write two words that mean addition
Answer:
the two words that means addition are
plus, sum and calculation..............
Sue has $500 in an account for 9 years at a compound rate of 7.5%. How much does she have?
Answer:
she has about $3750 in her acount.
Step-by-step explanation:
hope this helps you!
Select the correct answer. Which value of x makes this equation true? -12x - 2(x + 9) = 5(x+4)
Answer: x= -2/9
Step-by-step explanation:
-12x-2(x+9)=5(x+4)
= -12x-2x+18=5x+20
= -14x+18=5x+20
= -9x+18=20
= -9x=2
/-9 /-9
x= -2/9
what is the midpoint of 70 and 90
Answer:
80
Step-by-step explanation:
Just average the two numbers to get (70+90)/2 = 160/2 = 80
Answer:
Step-by-step explanation:
To find the midpoint between two numbers, you add them together and divide the sum by 2.
In this case, the midpoint between 70 and 90 would be:
(70 + 90) / 2 = 160 / 2 = 80.
Therefore, the midpoint between 70 and 90 is 80.
Connor has 2 hours to play a game that takes į hour each time. He plays the game 3 times.
How many more times can Connor play the game? Enter the answer in the box.
games
Connor has 4/5 hours more to play the game he played 3 times, and each time he takes 2/5 hours to finish the game.
What is a fraction?
Fraction number consists of two parts, one is the top of the fraction number which is called the numerator and the second is the bottom of the fraction number which is called the denominator.
We have: Connor has 2 hours to play a game that takes 2/5 hour each time. He plays the game 3 times.
Let's suppose he will have x hours after playing the 3 times
Each time he will, he takes 2/5 hours.
(2×3)/5 + x = 2
6/5 + x = 2
x = 2 – 6/5
x = 4/5 hours
Thus, Connor has 4/5 hours more to play the game he played 3 times, and each time he takes 2/5 hours to finish the game.
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CAN ANYONE HELP ANSWER THIS
9514 1404 393
Answer:
58
Step-by-step explanation:
The marked points on the graph show that the number of hot cocoas sold decreases by 6 when the temperature goes up by 6 degrees. That is, the line has a slope of -1. The y-intercept is 100, so the equation of the line can be written as ...
y = mx +b . . . . . line with slope m and y-intercept b
y = -x +100
Then for x = 42, the expected value of y is ...
y = -42 +100 = 58
Mei Mei can expect to sell 58 hot cocoas on a day when the high is 42°F.
Which graphs are inverses of one another? Graph A and B Graph A and C Graph B and C none of the graphs shown On a coordinate plane, graph A is in quadrants 1, 2, 3. Graph A is rotated across the x-axis to form graph B. Graph A is rotated and reflected across the axis to form Graph C.
Answer:
the answer is B (graph a and c)
just did the test on edg 21
Step-by-step explanation:
i hope this helps!! have an amazing day <3
If a graph is reflected across y = x then it will be an inverse graph so graphs B and C will be inverse.
What is the inverse of a function?The inverse of a function is basically a reverse function or undo of the function.
For example y = f(x) then inverse will be x = f(y).
It means in the inverse function we need to interchange x and y.
Another example y = 3x² ⇒ x = √(y/3) will be the inverse.
An inverse function is a reflection of graph across y = x and due to that coordinate will interchange its that ;
( x ,y ) → ( y , x )
Since graph A is rotated about the x-axis to make graph B
Now,
Graph A is rotated( which is B ) and reflected across the axis y = x to form Graph C.
So B and C will be the inverse of each other.
Hence "If a graph is reflected across y = x then it will be an inverse graph so graphs B and C will be inverse".
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The given question is incomplete complete question is ;
Which graphs are inverses of one another? Graph A and B Graph A and C Graph B and C none of the graphs shown On a coordinate plane, graph A is in quadrants 1, 2, and 3. Graph A is rotated across the x-axis to form graph B. Graph A is rotated and reflected across the axis y = x to form Graph C.
Write a rational number in fraction form that is equivalent to -1/5
Answer & Step-by-step explanation:
You can find a rational fraction equivalent to \(-\frac{1}{5}\) by multiplying the numerator and denominator by the same number. The number can be any:
\(-\frac{1}{5} *3\\\\-\frac{1}{5}*\frac{3}{3}=-\frac{3}{15}\)
This works because if you simplify the new number, it will have the same value as the first fraction.
If you simplify both fractions to a decimal value, they both equal -0.2.
What is the best first step to solve the inequality 5x - 322?
O Add 3 to both sides of the equation.
Subtract 3 from both sides of the equation.
Add 2 to both sides of the equation.
O Subtract 2 from both sides of the equation.
The best first step to solve the inequality 5x - 3 > 2 is A) Add 3 to both sides of the equation.
What is inequality?Inequality is a mathematical statement showing that two mathematical expressions are unequal or not equivalent.
Mathematical inequalities can be represented as follows:
Greater than (>)Less than (<)Greater than or equal to (≥)Less than or equal to (≤)Not equal to (≠).5x - 3 > 2
Add 3 to both sides of the inequality:
5x - 3 + 3 > 2 + 3
5x > 5
Divide both sides of the inequality by 5:
5x ÷ 5 > 5 ÷ 5
x > 1
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Question Completion:Inequality: 5x - 3 > 2
i need help with this one, NOW!
Answer:
It is 25 degrees.
Step-by-step explanation:
Jade can travel 42 miles in 4 hours please calculate jade rate of speed. (Round to 2 decimal places)
Answer:
10.50 mph
Step-by-step explanation:
S=d/t
S=42/4
S=10.50
Answer the questions below to find the total surface area of the can.
Answer:
\(\begin{aligned}SA &= 7.125\pi \text{ in}^2\\& \approx 22.4 \text{ in}^2 \end{aligned}\)
Step-by-step explanation:
We can find the Surface Area of the can by adding the areas of each of its parts:
\(SA = 2( A_{\text{base}}) + A_\text{side}\)
First, we can calculate the area of the circular base:
\(A_{\text{circle}} = \pi r^2\)
\(A_{\text{base}} = \pi (0.75 \text{ in})^2\)
\(A_{\text{base}} = 0.5625\pi \text{ in}^2\)
Next, we can calculate the area of the rectangular side:
\(A_\text{rect} = l \cdot w\)
\(A_\text{side} = (4\text{ in}) \cdot C_\text{base}\)
Since the width of the side is the circumference of the base, we need to calculate that first.
\(C_\text{circle} = 2 \pi r\)
\(C_\text{base} = 2 \pi (0.75 \text{ in})\)
\(C_\text{base} = 1.5 \pi \text{ in}\)
Now, we can plug that back into the equation for the area of the side:
\(A_\text{side} = (4\text{ in}) (1.5\pi \text{ in})\)
\(A_\text{side} = 6\pi \text{ in}^2\)
Finally, we can solve for the surface area of the can by adding the area of each of its parts.
\(SA = 2( A_{\text{base}}) + A_\text{side}\)
\(SA = 2(0.5625\pi \text{ in}^2) + 6\pi \text{ in}^2\)
\(\boxed{SA = 7.125\pi \text{ in}^2}\)
\(\boxed{SA \approx 22.4 \text{ in}^2}\)
The odds in favor of an event are given. Compute the probability of the event. (Enter the probability as a fraction.)
4 to 7
The probability of the event for the given odds in favor (4 to 7) is found as 4/11.
How do you calculate the probability?The inquiry provides the unusual parameters shown below: Odd = 4 to 7First, we must translate the odd into a ratio.Thus, we have the depiction shown below: odds of 4 to 7To continue solving, we must represent the ratio as a fraction.
Thus, we have the depiction shown below.
Odds ratio equals 4/7
We use the following equation to translate the aforementioned odd's expression into a probability expression.
This is displayed as
P = (Odds + 1)/(Odds).
Replace the unknown values in the equation above.
The following equation is what we have.
P = (4/7)/(4/7 + 1)
Analyze the amount
This results
P = (4/7)/(11/7)
Put the quotient in product form.
P = (4/7) * (7/11)
Evaluate
P = 4/11
Thus, the probability of event for the given odds in favor (4 to 7) is found as 4/11.
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the data set shows the january 1 noon temperatures in degrees Fahrenheit for a particular day in each of the past six years. 28 34 27 42 52 15 the five number summary of the data set is15 27 28 34 42 52 the mean of the data set is 33 what is the sum of the squares of the differences between each data value and the mean? use the table to organize your work
The sum of the squares of the differences between each data value and the mean is given as follows:
828.
How to obtain the sum of the squares?The mean of the data-set in this problem is given as follows:
33.
The data-set is given as follows:
28, 34, 27, 42, 52 and 15.
Hence the sum of the squares of the differences between each data value and the mean is obtained as follows:
(28 - 33)² + (34 - 33)² + (27 - 33)² + (42 - 33)² + (52 - 33)² + (15 - 33)² = 828.
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find the distance between the points (6,8) and (8,-2)
Answer:
\(d\) ≈ \(10.1980\)
Step-by-step explanation:
Start with the distance formula:
\(d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\)
Pair your values to your variables.
\(x_1=6,x_2=8,y_1=8,y_2=-2\)
Let's substitute those values into the formula.
\(d=\sqrt{(8-6)^2+(-2-8)^2}\)
Complete the operations in your parentheses.
\(d=\sqrt{(2)^2+(-10)^2}\)
Square the bases of your powers.
\(d=\sqrt{4+100}\)
Add.
\(d=\sqrt{104}\)
Find the square root of \(104\):
\(d\) ≈ \(10.1980\)
I only provided 4 digits after the decimal point; feel free to round it accordingly.
Mia hired a moving company. The company charged $500 or its services, and Mia gives the movers a 16% tip.
Answer:
The company charged $500 for its services,and Mia gives the movers a 16% tip. Now, we can add the tip amount to the cost of the service to find the total amount Mia paid: Total amount = Cost of service + Tip amount = $500 + $80 = $580
Step-by-step explanation:
1. A farmer estimates her hens will produce
3,000 dozen more eggs this year than last year.
She estimates the probability of her net profit or
loss on each dozen eggs based on her costs.
SEE EXAMPLE 1
Egg production last year: 12,000 dozen
Estimated Net Profit per Dozen Eggs
Net profit 8 6 4 2 °
8 6 4 2 0
(¢ per doz)
Probability 0.1 0.4 0.2 0.1 0.1 0.1
What is her expected profit per dozen eggs?
What is her expected profit on the total egg
production?
Answer:
Expected profit per dozen eggs = 4 ¢
Expected profit on the total egg production = 60,000 ¢
Step-by-step explanation:
Complete table as obtained online
Net Profit | 8 | 6 | 4 | 2 | 0 | -2
Probability |0.1|0.4|0.2|0.1|0.1|0.1
a) Expected profit per dozen eggs
Expected value is given as
E(X) = Σ xᵢpᵢ
xᵢ = each variable
pᵢ = probability of each variable
E(X) = (8×0.1) + (6×0.4) + (4×0.2) + (2×0.1) + (0×0.1) + (-2×0.1) = 4 ¢ per dozen
b) Expected profit on the total egg production
Last year, she had 12,000 dozen eggs
This year, she estimates 3,000 dozen more eggs
Estimated Total egg production this year = 12000 + 3000 = 15,000 dozen eggs
Expected profit per dozen eggs = 4 ¢
Expected profit on 15,000 dozen eggs = 15000 × 4 = 60,000 ¢
Hope this Helps!!!!
(6x + 7) - (-9x - 9)
Answer:
-3x+16
Step-by-step explanation:
(6x+7)-(9x-9)
Collect like terms
6x-9x = -3x
7+9= 16
answer is -3x+16
Answer:
15x + 16
Explanation:
Basically whatever you are solving for in this question, the answer will be the exact same