Answer:
The function that can be used in the online shopping club about its monthly revenue is:
\(R = -400x^{2} +7200x+70000\)
Step-by-step explanation:
First, we're gonna take into account the different values we have in the exercise:
10,000 members$7 per month for membershipLoses of 400 members by each $1 monthly increaseHow the variable \(x\) represents the price increase, we can do the formula below:
\((10000 - 400x) * (7+x)\)In this formula, we represent in the first part that by each 1 in the variable \(x\), the total of members will be reduced in 400, in the second part, we mention that at the same time, the membership fee will be increased in the same value of \(x\). Now we must simplify this function:
\((10000 - 400x) * (7+x)\)We operate the values:
\(70000+10000x-2800x-400x^{2}\)Solve we can:
\(70000+7200x-400x^{2}\)And organize:
\(-400x^{2} +7200x+70000\)At the end, how \(R\) represents the monthly revenue received by the club, we use that variable for our formula:
\(R=-400x^{2} +7200x+70000\)The sum of two numbers is 21. Three times the larger is equal to four times the smaller.
Find them.
Mt. Everest, the tallest mountain in the world, is 29,029 ft tall. K2, the world’s second tallest mountain is 28,251 ft tall. How much taller is Mt. Everest than K2?
Answer:
778ft
Step-by-step explanation:
Which of the following statements is not true?
Choose the incorrect statement below.
The three-part inequality - 1 <-3x ≤ 1 is equivalent to -5x<
15x2
<3 is equivalent to -6≤5-x<6.
The three-part inequality - 3s-
OD. The three-part inequality -7≤11-x<7 is equivalent to 4 < x≤ 18.
OA.
OB.
C.
The three-part inequality -5s-10x<5 is equivalent to
5-x
...
The incorrect statement is:
B. The three-part inequality - 5x < 15x^2 < 3 is equivalent to - 6 ≤ 5 - x < 6.
In the given statement, there is an error in the inequality. The correct statement should be:
The three-part inequality - 5x < 15x^2 < 3 is equivalent to - 6 ≤ 5 - x and 5 - x < 6.
When solving the three-part inequality - 5x < 15x^2 < 3, we need to split it into two separate inequalities. The correct splitting should be:
- 5x < 15x^2 and 15x^2 < 3
Simplifying the first inequality:
- 5x < 15x^2
Dividing by x (assuming x ≠ 0), we need to reverse the inequality sign:
- 5 < 15x
Simplifying the second inequality:
15x^2 < 3
Dividing by 15, we get:
x^2 < 1/5
Taking the square root (assuming x ≥ 0), we have two cases:
x < 1/√5 and -x < 1/√5
Combining these inequalities, we get:
- 5 < 15x and x < 1/√5 and -x < 1/√5
Therefore, the correct statement is that the three-part inequality - 5x < 15x^2 < 3 is equivalent to - 6 ≤ 5 - x and 5 - x < 6, not - 6 ≤ 5 - x < 6 as stated in option B.
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Pls help me I really nee it pls pls pls pls
Se quiere diseñar la bandera de un colegio el cual debe tener 1 animal, 1 color de fondo y una palabra representativa. La cantidad de colores que se pueden escoger son 8, la cantidad de animales son 13 y la cantidad de palabras son 9, ¿cuántas banderas es posible diseñar?
Answer:
Es posible diseñar 936 banderas.
Step-by-step explanation:
Para poder determinar la cantidad de banderas que es posible diseñar utilizando 1 animal, 1 color de fondo y 1 palabra representativa de un total de 8 colores, 13 animales y 9 palabras, se debe multiplicar la cantidad total de variables, y su resultado será la cantidad de banderas que se podrán diseñar.
Así, deben multiplicarse 8 x 13 x 9, es decir, el total de colores, animales y palabras. Esta multiplicación da como resultado 936, con lo cual es posible diseñar 936 banderas diferentes.
Solve using the quadratic formula
Write the component form of the vector.
Answer:
C , D
Step-by-step explanation:
The component form of a vector is given as < x, y >, where x describes how far right or left a vector is going and y describes how far up or down a vector is going.
The component form of vector C is <1, 5> and the component form of vector D is <8, 2>. The components represent the magnitudes of the vector's displacements in the x and y directions, respectively.
To write the component form of a vector, we simply list its components, which are the numerical values that represent the vector's magnitude and direction in each dimension. In this case, we have vector C with components C<1, 5> and vector D with components D<8, 2>.
The components of a vector represent its position or displacement along the coordinate axes. In a two-dimensional Cartesian coordinate system, the first component represents the displacement along the x-axis (horizontal direction), and the second component represents the displacement along the y-axis (vertical direction).
For vector C, the component form is written as <1, 5>, where the first component is 1 and the second component is 5. This means that vector C has a displacement of 1 unit in the x-direction and 5 units in the y-direction.
Similarly, for vector D, the component form is <8, 2>, indicating a displacement of 8 units in the x-direction and 2 units in the y-direction.
Therefore, the component form of vector C is <1, 5> and the component form of vector D is <8, 2>. The components represent the magnitudes of the vector's displacements in the x and y directions, respectively.
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According to an airline, flights on a certain route are on time 85% of the time. Suppose 20 flights are randomly selected and the number of on-time flights is recorded.
(a) Explain why this is a binomial experiment
(b) Find and interpret the probabdity that exadly 15 flights are on time.
(c) Find and interpret the probability that fewer than 15 flights are on time.
(d) Find and interpret the probability that at least 15 flights are on time.
(e) Find and interpret the probability that between 13 and 15 flights, inclusive, are on time.
(a) Identify the statements that explain why this is a binomial experiment. Select all that apply.
A. Each trial depends on the previous trial
B. There are three mutually exclusive possibly outcomes, arriving on-time, arriving early, and arriving late.
C. The experiment is performed unti a desired number of successes is reached
D. The trials are independent.
E. The probability of success is the same for each trial of the experiment.
F. There are two mutually exclusive outcomes, success or failure.
G. The experiment is performed a fixed number of times.
Answer:
See the answers below. Thanks!
Step-by-step explanation:
(a). Option F is the correct choice. "There are two mutually exclusive outcomes, success or failure."
(b). P(X=15) = 0.1702
(c). P(X<15) = 0.0673
(d). P(X>=15) = 1 - P(X<15) = 0.9327
(e). P(13<=X<=15) = 0.1482
Best Regards!
Solve the problem and then click on the correct graph.
|x| + y ≥ 0
Answer:
There's no graphs....
Step-by-step explanation:
Answer:
y ≥ - |x|
Step-by-step explanation:
need help with this ASAP
!!!!!!!!!!!!!!!!!!!!!!!!
The fence in dead center is about 399 feet from the third base.
What is the Pythagorean Theorem?The Pythagorean Theorem states that in the case of a right triangle, the square of the length of the hypotenuse, which is the longest side, is equals to the sum of the squares of the lengths of the other two sides.
Hence the equation for the theorem is given as follows:
c² = a² + b².
In which:
c > a and c > b is the length of the hypotenuse.a and b are the lengths of the other two sides (the legs) of the right-angled triangle.For the triangle in this problem, we have that:
The sides are d ft and 90 ft.The hypotenuse is of 409 ft.Hence the distance is obtained as follows:
d² + 90² = 409²
\(d = \sqrt{409^2 - 90^2}\)
d = 399 ft.
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If f(x) = 5x + 40, what is f(x) when x = -5?
0-8
0.7
O 15
Answer:
15
Step-by-step explanation:
f(x) = 5x + 40
…………………………
when x = -5
f(-5) = 5(-5) + 40
= -25 + 40
= 40 - 25
= 15
To hire an accountant to prepare taxes costs a flat fee and an additional hourly rate. The amount the accountant costs can be modeled by the function A(x) = 130 + 15x, where x represents the number of hours the accountant works to prepare the taxes and 130 represents the flat fee. What is the value of A(190) and its interpretation?
A(190) = 4; If the accountant takes 190 hours to prepare the taxes, the cost will be $4.
A(190) = 2980; If the accountant takes 190 hours to prepare the taxes, the cost will be $2,980.
A(190) = 4; If the account takes 4 hours to prepare the taxes, the cost will be $190.
A(190) = 2980; If the accountant takes 2980 hours to prepare the taxes, the cost will be $190.
The value of A(190) and its interpretation is: B. A(190) = 2980; If the accountant takes 190 hours to prepare the taxes, the cost will be $2,980.
CostGiven function:
A(x) = 130 + 15x
Let x represent the number of hours
Let the flat fee be 130
Let plug in 190 into the function as this will enable to determine the value of A(1900 and it interpretation.
Hence,
A(x) = 130 + 15x
A(x) = 130 + 15(190)
A(x) = 130 + 2,850
A(x) = 2,980
Therefore the value of A(190) and its interpretation is: B. A(190) = 2980; If the accountant takes 190 hours to prepare the taxes, the cost will be $2,980.
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Answer:
(B) A(190) = 2980; If the accountant takes 190 hours to prepare the taxes, the cost will be $2,980.
Step-by-step explanation:
Got it right on my quiz
a soccer league has a ratio of 11:3 of players to coaches. if there are 165 players in the league. how many coaches are there?
Answer:
45 coaches
Step-by-step explanation:
11:3 = 165:45
Answer:45
Step-by-step explanation:
Please help very easy
Answer:
1) 35 + 5 = 40
2) 15 + -5 = 10
3) 10 + -25 = -15
Step-by-step explanation:
Hope this helps
Have a great day!
Write 3 1/2 cups as a multiplication expression using the unit, 1 cup, as a factor.
I ABSOLUTELY NEED HELP BY TOMORROW!!! I AM GIVING 100 POINTS
3 1/2 cups can be expressed as the multiplication expression: 3 + 1/2.
How to Write 3 1/2 cups as a multiplication expression using the unit, 1 cup, as a factor.To express 3 1/2 cups as a multiplication expression using the unit "1 cup" as a factor, you can write it as:
3 1/2 cups = (3 + 1/2) cups = 3 cups + 1/2 cup
Since there are 1 cup in each term, we can rewrite it as:
3 cups + (1/2) cup
Now, we can express each term as a multiplication expression:
3 cups = 3 * 1 cup = 3
(1/2) cup = (1/2) * 1 cup = 1/2
Putting it all together, the multiplication expression is:
3 * 1 cup + (1/2) * 1 cup = 3 + 1/2
Therefore, 3 1/2 cups can be expressed as the multiplication expression: 3 + 1/2.
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3x-2y>2. can someone please help me.. i hate math
The inequality is graphed and attached
How to make inequality graphsThere are some points that help in interpreting inequality graphs.
the x values are also called the domain lets assume -4 0 4. this is substituted into the equation 3x - 2y > 2 to get the values in the y direction.
3x - 2 > y
y < 3x - 2
for x = -4
y < 3 * -4 - 2 = -14
for x = 0
y < 3 * 0 - 2 = -2
for x = 4
y < 3 * 4 - 2 = 10
table of values
x y
-4 -14
0 -2
4 10
y < 3x - 2 is the equation
Then use of dashed lines of dashed lines or solid lines
dashed lines means there is no equality sign in the inequality > OR < hence used for the problem
solid line means there is equality in the inequality ≤ OR ≥
Another part is the shaded portion
shading above the line defines greater than shading below the line defines less than. The equation has less than and the shading is below the line
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A circle has a diameter of 24 in what is the circumference pi is 3.14
Answer:
The circumference of a circle is calculated using the formula: C = πd, where C represents the circumference and d represents the diameter of the circle.
In this case, the diameter of the circle is given as 24 inches.
Using the formula, we can substitute the values:
C = πd
C = 3.14 * 24
C ≈ 75.36 inches
Therefore, the circumference of a circle with a diameter of 24 inches (and using π = 3.14) is approximately 75.36 inches.
Step-by-step explanation:
what are you guys studying?
Answer:
im study about history it was my favourite subject!
50 points for 3 questions. solve and explain please.
(1) The value of x is determined as 16.8.
(2) The measure of length VX is calculated as 4.1.
(3) The measure of angle UWV is 69.5⁰.
What is the value of the missing lengths of the triangle?
The value of the missing lengths of the triangle is calculated by applying the following formula;
(1) For the two similar triangles, the value of x is calculated as follows;
20 / (28 - x) = 30 / x
20x = 30 (28 - x )
20x = 840 - 30x
20x + 30x = 840
50x = 840
x = 840 / 50
x = 16.8
(2) The measure of length VX is calculated by applying trig ratios.
tan 63 = 8 / VX
VX = 8 / tan 63
VX = 4.1
(3) The measure of angle UWV is calculated as follows;
angle T = 360 - (94 + 127) = 139
angle UWV = ¹/₂ x 139 (angle at circumference is half of angle at center)
angle UWV = 69.5⁰
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What is the value of the expression
6t - 2
+4(t + 1) when t = 5?
4.
Answer:
(6 x 5) - 2 + 4(5 + 4)
30 - 2 +20 +16
A = 64
Step-by-step explanation:
What is the distance from Point B (-1, 11) to line y = -1/3x - 6?
Answer in simplest radical form
The distance from Point B (-1, 11) to line y = (-1 ÷ 3x) - 6 is 15.811.
The distance from the point B(-1 , 11) to the line y= (-1 ÷ 3x) - 6 is given by the distance formula d = (|Ax1 + By1 + C|) ÷ (√(A² + B²)).
Comparing the equation y= (-1 ÷ 3x) - 6 with the standard forms Ax + By+ C = 0.
It is clear that the coefficient of x, A = -1 ÷ 3.
The coefficient of y, B = -1. The constant C = -6 and the points x1 = -1 and y1 = 11.
Substituting these data in the equation the distance d = (|(-1÷3)×(-1)+ (-1)×11 + (-6)|) ÷ √((-1 ÷ 3)² + (-1)² ) solving the equation the distance d becomes,
d = 15.811.
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Explain why the formulas for sample variance and population variance are different.
A. Variance is defined as the mean deviation, and, for a population, is computed as the sum of deviations divided by N. The sample variance will be biased and will consistently underestimate the corresponding population value.
B. Variance is defined as the mean squared deviation, and, for a population, is computed as the sum of squared deviations divided by N. The sample variance will be biased and will consistently underestimate the corresponding population value.
C. Variance is defined as the mean squared deviation, and, for a population, is computed as the sum of deviations divided by N. The sample variance will be biased and will consistently underestimate the corresponding population value.
Answer:
The answer is "option C".
Step-by-step explanation:
Distinctions are also the mean squared variance just are calculated as the number of standard differences divided by "N" and for a population. After all, if a sample uses this very same definition.
Its standard deviation would become partially skewed as well as the resulting community value becomes continuously underestimate. Its experimented formula consequently includes a correction modification for a bias. Its modification involves dividing by instead of n.Answer:
The answer is "option C".
Step-by-step explanation:
Distinctions are also the mean squared variance just are calculated as the number of standard differences divided by "N" and for a population. After all, if a sample uses this very same definition.
Its standard deviation would become partially skewed as well as the resulting community value becomes continuously underestimate.
Its experimented formula consequently includes a correction modification for a bias. Its modification involves dividing by instead of n.
Using whole numbers 0-9 create numbers that when rounded is 3.7
Answer:
umm 4
Step-by-step explanation:
Answer:
3.65, 3.66, 3.67, 3.68, 3.69, 3.71, 3.72, 3.73, 3.74
:)
The table below
A
3. Circle A has been enlarged to create circle
shows the circumference of both circles.
Circumference
Circle Circumference (inches)
2
5
A
6
A
15
O
1.5
Based on the information in the table, what scale factor was used
9
A
to create circle
?
O
2.5
CLEAR ALL
Answer:
\(Scale\ Factor = 1.5\)
Step-by-step explanation:
See attachment for proper presentation of question.
From the attachment, we have:
\(A = 7\)
\(A' = 10.5\)
Required
Determine the scale factor
To solve this, simply divide the circumference of A' by that of A.
This gives the scale factor used
i.e.
\(Scale\ Factor = \frac{A'}{A}\)
Substitute values for A and A'
\(Scale\ Factor = \frac{10.5}{7}\)
\(Scale\ Factor = 1.5\)
Hence, the scale factor used is 1.5
Additional Note:
If the given parameters had been the area of A and A', you'll need to first solve for the radius of both circles.
Then determine the scale factor by A'/A
Use the applet to select a random sample of 8 students.Repeat to generate many samples. The applet gives the sample proportion for each sample. Examine the variability in the sample proportions you generated with the applet. Which of the following sequences of sample proportions is most likely to occur for 5 random samples of 8 students from this population? Group of answer choices 0.250, 0.125, 0.500, 0.500, 0.875 0.600, 0.600, 0.600, 0.600, 0.600 0.375, 0.625, 0.500, 0.500, 0.875
Answer:
0.250, 0.125, 0.500, 0.500, 0.875
Step-by-step explanation:
Sampling method is used in statistics where the sample is extracted from the population. A random sampling means that there is equal chance of every proportion to be selected in the sample. In the given scenario the sampling method used is random sampling which has 5 random samples of 8 students. There can be sequence for the sampling starting from 0.250.
A Sumer job pays $5 per hour
b. After working 24 hours, do you have enough money to buy an MP3
player that costs $100? Explain your reasoning.
Answer:
Yes, since the total pay of $120 is more than the $100 cost of the MP3 player.
Step-by-step explanation:
hourly pay: $5/hour
number of hours: 24 hours
total pay = hourly pay × number of hours
total pay = $5/hour × 24 hours
total pay = $120
MP3 player costs $100.
Total pay is $120.
Answer: Yes, since the total pay of $120 is more than the $100 cost of the MP3 player.
Mrs. Stancil is planning to use
wrapping paper to cover a gift box that is the
shape of a rectangular prism with dimensions of
3ft by 4ft by 5ft. If the wrapping paper costs
S0.05 per square foot, how much will it cost?
Answer:
4.70
Step-by-step explanation:
there are 6 sides on a box
2 sides are 12 square feet (3*4), 2 sides are 15 square ft (3*5), and 2 sides are 20 square ft (4*5)
12*2+15*2+20*2=24+30+40=94 square feet
if each square foot costs $0.05 (I think that's what it says) then you would do 94*0.05= $4.70
so, your answer is $4.70
Not sure if this is right, but I tried
1. Can we add any two matrices
together? If so, explain why; if
not, explain why not and give an
example of two matrices that
cannot be added together.
Step-by-step explanation:
If we add two matrices,
there rows and columns must be the same.
For example, consider matrix
\( \binom{4}{2} \binom{1}{3} + \binom{5}{9} \)
we cant add these matrices by the first martix had 2 colums and 2 rows.
The second has 1 column and 2 rows.
2x - y = 6, x + y = -3
Solve by substitution
Answer:
the correct answer is
x = 1
y = -4
Can someone answer theese 3 questions
Answer:
Which three questions?
Step-by-step explanation:
I've answered this first question, I guess I need two more...