Answer
The cost of the DVD now that it's on sale will be $13.5
Explanation
DVD actual price = $15
10% off the price will be (10/100 x $15) = $1.5
The selling price of the DVD now will be $(15 - 1.5) = $13.5
∴ The cost of the DVD now that it's on sale will be $13.5
Two functions are given below: f(x) and h(x). State the axis of symmetry for each function and explain how to find it. (10 points)
f(x) h(x)
f(x) = −4(x − 8)^2 + 3 graph of negative 1 times the quantity of x minus 3 squared, plus 2
I have attached a picture of the graph below.
Please do not answer if you don't know or are not sure. Thank you.
Answer:
x = 8 for f(x) and x = 3 for h(x)
Step-by-step explanation:
the axis of symmetry is a vertical line which passes through the vertex of the graph with equation
x = c ( c is the value of the x- coordinate of the vertex )
the equation of a parabola in vertex form is
f(x) = a(x - h )² + k
where (h, k ) are the coordinates of the vertex and a is a multiplier
f(x) = - 4(x - 8)² + 3 ← is in vertex form
with vertex (h, k ) = (8, 3 )
equation of axis of symmetry of f(x) is x = 8
given the graph of h(x) with vertex = (3, 2 ) , then
equation of axis of symmetry of h(x) is x = 3
Mrs Nunez brought person receive? 2 1/2 cakes to school for her class. If there are 15 people in the class including Mrs. Nunez, how much cake will each person receive?
use the portion of the exponential graph below to answer questions 1. what is the domain 2. what is the range
Given:
Exponential graph.
Find-: 1) Domain
2) Range
Sol:
1)
Domain - The domain of a function is the set of its possible inputs, i.e., the set of input values where for which the function is defined. In the function machine metaphor, the domain is the set of objects that the machine will accept as inputs.
The input value is shown in the x-axis so in given graph possible value of x is:
[tex]\begin{gathered} \text{ Domain is:} \\ x\in[-1,3] \end{gathered}[/tex]2)
Range - The range of a function is the set of outputs the function achieves when it is applied to its whole set of outputs. In the function machine metaphor, the range is the set of objects that actually come out of the machine when you feed it all the inputs.
Output value for function is shown in y-axis
[tex]\begin{gathered} \text{ Range is:} \\ y\in[6,27] \end{gathered}[/tex]
If I drive 250 miles on Tuesday and 180 miles on Wednesday. How many miles did I drive in all? (Multiply)
The miles drive on Tuesday is , 250 miles.
The miles drive on Wednesday is , 180 miles.
The total miles drive on Tuesday and Wednesday is, the sum of drive on Tuesday and Wednesday.
[tex]S=250+180[/tex][tex]S=430.[/tex]Thus, the total miles drive on Tuesday and Wednesday is, 430 miles.
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The area of a rectangle is the product of its length and breadth. The maximum area enclosed by the fence is 36800 square meter and the dimensions of the enclosed area are 115 meter and 320 meter. The width is given as 115 meter.
What is a rectangle?A rectangle is a kind of parallelogram that has equal diagonals.
All the interior angles of a rectangle are equal to the right angle.
The diagonals of a rectangle do not bisect each other.
The dimensions of the given rectangle is (650 - 2x) and x.
Then, the area of the given rectangle is A(x) = x(650 - 2x)
In order to find the maximum area enclosed take the derivative of A(x) and equate it to zero as follows,
(660 - 2x) - 2x = 0
=> 4x = 660
=> x = 660 / 4
=> x = 115
Now, the maximum area is the value of A(x) at x = 115 as below,
= 115 × (650 - 2×115)
= 115 × 320
= 36800
The dimensions for the maximum area are 115 and (650 - 2 × 115) = 320.
Hence, the largest area enclosed is 36800 square meter and the dimensions of the enclosed area are 115 meter and 320 meter. The width is given as 115 meter.
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Q
R
85°
6.7 cm
8.0 cm
38°
S
6.7 cm
38°
8.0 cm
What is the measure, in degrees, of
U
Answer:
VB.
Step-by-step explanation:
Write the sentence as an equation. 238 is 84 more than p Type a slash (/) if you want to use a division sign.
238 = 84 + p
definition of more than is to add.
definition of "is" is total
Find the volume of a cone with a height of 9 cm and a base diameter of 6 cm. Use the value 3.14 for , and do not do any rounding. Be sure to include the correct unit in your answer. Explanation Check cm 6 cm 0 A cm X cm² cm³ ?
Given:
Required:
We need to find the volume of given cone
Explanation:
Take
[tex]\begin{gathered} r=\frac{6}{2}=3\text{ cm} \\ \\ h=9\text{ cm} \\ \pi=3.14 \end{gathered}[/tex]The volume of cone is
[tex]V_c=\frac{1}{3}\pi r^2h[/tex]Plug the values
[tex]V_c=3.14*\frac{1}{3}*3*3*9=84.78\text{ cm}^3[/tex]Final answer:
Volume of cone is 84.78 cubic cm
Alpha Company sells their product for $ 1 each. The variable costs are $ 7 per unit and the fixed costs are $ 30,000 per year. How much should we sell the unit to: 1- Reach the break-even point 2- Achieve a net profit of $ 21,000 3- Achieve a net profit equal to $ 21,000.
we have that
Part 1
Remember that breakpoint is when the revenue (R) is equal to the cost (C)
so
C=7x+30,000
R=10x
equate both equations
10x=7x+30,000
solve for x
10x-7x=30,000
3x=30,000
x=10,000 units
the answer Part 1 is 10,000 unitsPart 2
net profit of $ 21,000
so
R-C=21,000
10x-(7x+30,000)=21,000
10x-7x-30,000=21,000
3x=21,000+30,000
3x=51,000
x=17,000 unitsPart 3
net profit equal to $ 60,000
so
R-C=60,000
10x-(7x+30,000)=60,000
10x-7x-30,000=60,000
3x=60,000+30,000
3x=90,000
x=30,000 unitsHello! I need some assistance with this homework question, pleaseQ2
Recall that:
[tex](f\cdot g)(x)=f(x)g(x)\text{.}[/tex]Then, if:
[tex]\begin{gathered} x\in\text{Dom(f)}\cap Dom(g) \\ \text{then} \\ x\in\text{Dom(f}\cdot g)\text{.} \end{gathered}[/tex]Now, notice that:
[tex]\begin{gathered} x\in\text{Dom(f}\cdot g)\text{ if } \\ f(x)\text{ and g(x) exists,} \\ \text{then} \\ x\in\text{Dom(f)}\cap Dom(g). \end{gathered}[/tex]Therefore:
[tex]\text{Dom(f}\cdot g)=\text{Dom(f)}\cap Dom(g).[/tex]Answer: True.
Drag each number to the correct location on the image.
Classify the real numbers below as rational or irrational numbers.
Please actually help and if its right ill give brainliest
Rational number will be 1/4, 2/3, √4 and Irrational number will be √8, √90, π/2, π as "Any whole number, fraction, or decimal that ends or repeats is a rational number. Any number that cannot be divided into a fraction and thus does not meet the definition of a rational number is considered to be irrational."
What is rational number?If p and q are integers and q is not equal to 0, then the number is in the form of p/q and is said to be rational. Among the rational number examples are 1/3, 2/4, 1/5, 9/3, and so forth. P/Q is the format for rational numbers, where p and q are open-ended integers and q 0. Thus, natural numbers, whole numbers, integers, fractions of integers, and decimals are all examples of rational numbers (terminating decimals and recurring decimals).
What is irrational number?Any real number that cannot be expressed as the quotient of two integers, p/q, where p and q are both integers, is referred to as an irrational number. For instance, the square root of 2 cannot be expressed as an integer or a fraction. A real number that cannot be expressed as a straightforward fraction is referred to as an irrational number. It cannot be described using a ratio. When p and q are integers and q is not equal to 0, N is not equal to p/q if N is irrational. Example: The numbers 2, 3, 5, 11, 21, and (Pi) are all illogical.
Here,
Rational number=1/4, 2/3, √4
Irrational number=√8, √90, π/2, π
As "Any whole number, fraction, or decimal that ends or repeats is a rational number. Any number that cannot be divided into a fraction and thus does not meet the definition of a rational number is considered to be irrational." so Rational number will be 1/4, 2/3, √4 and Irrational number will be √8, √90, π/2, π.
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a. In the cafeteria, there is one large 10-seat table and many smaller 4-seat tables. Thereare enough tables to fit 200 students. Write an inequality whose solution is the possiblenumber of 4-seat tables in the cafeteria.b. 5 barrels catch rainwater in the schoolyard. Four barrels are the same size, and theAfth barrel holds 10 liters of water. Combined, the 5 barrels can hold at least 200 litersof water. Write an inequality whose solution is the possible size of each of the 4barrels.c. How are these two problems similar? How are they different? Solve ach problem.
According to the statement given in Part a, there is one table for 10 people and many tables for 4 and in total there are tables for 200 people. Taking x as the number of tables for 4 people, the inequality that represents this situation is:
[tex]\begin{gathered} 4x+10\leq200 \\ 4x\leq190 \\ x\leq47.5 \end{gathered}[/tex]It means that there must be less than or 47.5 tables in the cafeteria.
According to the statement given in Part b, there are 4 barrels that are the same size, and one that is 10 liters, in total they can hold 200 liters. Taking x as the volume hold by the 4 barrels , the inequality that represents this situation is:
[tex]\begin{gathered} 4x+10\leq200 \\ 4x\leq190 \\ x\leq47.5 \end{gathered}[/tex]It means that each barrel must hold less than or 47.5 liters of water.
These problems are similar because of the inequality used to find the solution is the same, they are different because of the variable that is found is completely different, the first one is the number of tables and the second one is the volume that can be hold by the barrels.
two boats leave a dock at the same time. boat a goes due north 500 feet and stops. boat b goes due east 400 feet and stops and turns directly towards boat a. what angle must b turn to face and proceed directly to boat a
By using Trigonometry, it is obtained that
The boat must turn by 51.34° to face and proceed directly to boat A
What is Trigonometry?
Trigonometry shows the relationship between sides and angles of a right angled triangle.
There are six trigonometrical functions. They are [tex]sin\theta, cos\theta, tan\theta, cot\theta, sec\theta, cosec\theta[/tex]
Here,
The diagram has been attached here.
Let C be the starting point A and B be the position of boat A and boat B respectively
Boat A goes due north 500 feet and stops
Boat B goes due east 400 feet and stops
Let the angle by which B turn to face and proceed directly to boat A be [tex]\theta[/tex]
By using Trigonometry,
[tex]tan\theta =\frac{500}{400}\\\\tan\theta =\frac{5}{4}\\\\\theta = 51.34^{\circ}[/tex]
The boat must turn by 51.34° to face and proceed directly to boat A
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Steve drives an electric car. He can drive 425 kilometres before he needs to stop and re-charge his car. It takes 10 minutes to charge 50 kilometres. How long does Steve have to wait for his car to fully charge?
Steve has to wait for 1 hour 25 minutes
Answer: 1 h 25 min
Step-by-step explanation:
Let us make the proportion:
10 min - 50 km
x min - 425 km
Hence,
[tex]\displaystyle\\x=\frac{425(10)}{50} \\\\x=\frac{85(5)(10)}{5(10)} \\\\x=85 \ min\\\\x=(60+25) \ min\\\\x=1\ hour\ 25\ min[/tex]
9. The graph shows a proportional relationship between the variables x and y. a. Write an equation to model the relationship. b. Reasoning Explain how you know if an equation or a graph represents a proportional relationship. у 96 72 48 24 X 2 4 6 8
Answer:12x
Step-by-step explanation:
between which two numbers is = 1.5 located on a number line -4 and 3
EXPLANATION
Given the number 1.5, is located between 1 and 2.
The map shows air travel distances from Minneapolis to four other cities. Use the triangle
inequality to find the range of possible distances between:
Minneapolis
1584
San Francisco
355
1056
1018
Chicago
Houston
New York
a.
b.
C.
d.
Chicago and Houston
San Francisco and Chicago
New York and San Francisco
Houston and New York
Answer:7
Step-by-step explanation:
A longitudinal wave produced on a toy slinky travels at a speed of 30 m/s with a frequency of 20 Hz. Find the minimum separation between the consecutive compressions of the slinky.
Answer:
pagal
Step-by-step explanation:
pagal pagal pagal pagal pagal pagal pagal pagal pagal pagal pagal pagal pagal pagalwhat is the meaning of a mad person
Determine if the triangles are similar. If similar, state how and complete the similarity statement.
Answer:
SAS (Both sides share common angle n, and the sides, 40 : 65 and 32 : 52 have the same ratio)
▲LMN ~ ▲GHN
Nadia sells small boxes of chocolates and large boxes of chocolates.
The total number of chocolates in 3 small boxes and 1 large box is 66
The total number of chocolates in 1 small box and 2 large boxes is 72
Work out the number of chocolates in each small box and the number of chocolates in each large box.
Answer:
small box: 12large box: 30Step-by-step explanation:
You want the numbers of chocolates in a small box and a large box given these total numbers:
3 small, 1 large total 661 small, 2 large total 72EquationsIf x and y represent the numbers of chocolates in a small box and a large box, respectively, these relations can be written ...
3x +y = 66x +2y = 72SolutionSubstituting for y in the second equation, we have ...
x + 2(66 -3x) = 72
-5x +132 = 72 . . . . . . simplify
60 = 5x . . . . . . . . . add 5x-72 (keeps the numbers positive)
12 = x . . . . . . . . . . divide by 5
y = 66 -3(12) = 30 . . . . . use the expression for y to find y from x
The number in a small box is 12; the number in a large box is 30.
<95141404393>
3. What is the value of k whena. 2b. -14c. -10d. 14e. 10x² - x + 24= x - 2?x - 12TEXT=PL-=
We will have the following:
[tex]\begin{gathered} \frac{x^2-kx+24}{x-12}=x-2\Rightarrow x^2-kx+24=(x-2)(x-12) \\ \\ \Rightarrow x^2-kx+24=x^2-12x-2x+24 \\ \\ \Rightarrow x^2-kx+24=x^2-14x+24 \\ \\ \Rightarrow-kx=-14x\Rightarrow k=14 \end{gathered}[/tex]So, the value of k will be 14.
The picture won't load but it's a problem that asks: use the picture to determine which inequality represents the graph
First, we find the slope of the line using the points the formula
[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]Let's replace the points (-1, -1) and (0, 1). Where
[tex]m=\frac{1-(-1)}{0-(-1)}=\frac{1+1}{1}=\frac{2}{1}=2[/tex]Given that the slope is 2, then the answer is in the first column.
Observe that the region of solutions is above the solid line, which means the answer is
[tex]y\ge2x+1[/tex]The right answer is D.Use the following function rule to find f(–3a + 7). Simplify your answer.
f(b) = – 8b
f (–3a + 7) = ?
The functional value of f(-3a + 7) is 24a - 56
What is a function?
A rule that assigns a specific element of B to each element of A is known as a function from A to B. Both A and B are referred to as the function's domain and codomain, respectively. A relation between a collection of inputs and outputs is known as a function. A function is, to put it simply, a relationship between inputs in which each input is connected to precisely one output. Each function has a range, codomain, and domain.
There are different operations on functions like addition, subtraction, multiplication, division, and composition of functions.
Here we have,
the given function is
f(b) = -8b
f(-3a + 7) = -8(-3a + 7)
= 24a - 56
Hence, the functional value of f(-3a + 7) is 24a - 56
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If the length of EG is 22, find the length of EQ
Given that:
Diameter of the circle, EG = 22
To find EQ, take the half of the diameter.
[tex]\begin{gathered} EQ=\frac{EQ}{2} \\ =\frac{22}{2} \\ =11 \end{gathered}[/tex]The third option is correct.
Find the value of csc (13π/6) using the unit circle.
The meaning of 13*pi/6 is as if you made 13 complete revolutions around the point pi/6.
therefore, is the same calculate the sin of 13pi/6 than the sin of pi/6.
[tex]\begin{gathered} sin(\frac{\pi}{6})=\frac{1}{2} \\ sin(\frac{13\pi}{6})=\frac{1}{2} \end{gathered}[/tex]Substituing:
[tex]csc(\frac{13\pi}{6})=\frac{1}{sin(\frac{13\pi}{6})}=\frac{1}{\frac{1}{2}}=2[/tex]The answer is: csc(13pi/6)=2.
A city has a population of 260,000 people. Suppose that each year the population Grows by 6%. What will the population be after 5 years?
Answer:
3343621.39918 or rounding would be 3343621.40
Step-by-step explanation:
this is because taking 260,000 divided by .6 then dividing that answer by .6 so on till you done that five times
14x + 7 + 4 I need help asap
Answer:
Step-by-step explanation:
14x + 11
Write it on the venn diagram:-School starts may include your expectations ; School ends include your experience. -The Center/middle area may include your experience from the start until this day.
It is a pictorial representation that shows a logical relations between sets.
The centre portion of the set is the intersection between the two sets. This will represent your experience from the start until this day.
The other portion of school starts will represent expectation while for school emds will represents your experience as shown
x/5 = 15
please quick now now now faults hurry
Answer:
x=75
Step-by-step explanation:
Answer:
x = 75
Step-by-step explanation:
x/5 = 15
Multiply 5 on both sides
x = 75
28. Find four consecutive integers with the sum of 54.
The four consecutive integers with the sum of 54 is 12, 13, 14, 15
Let the four consecutive integers be x, x+1 , x+2, x + 3
x + x + 1 + x + 2 + x + 3 = 54
4x + 6 = 54
4x = 48
x = 12
The consecutive integers are
x = 12
x + 1 = 12 + 1 = 13
x + 2 = 12 + 2 = 14
x + 3 = 12 + 3 = 15
Therefore, the four consecutive integers with the sum of 54 is 12, 13, 14, 15
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