Answer:
Domain is [-5,0]∪[2,8]
Range is [-3,3]
Desmond is looking to purchase a new tile floor for his kitchen. The floor cost $5 per square foot of tile in addition to a $500 instillation fee. Write an equation to show the cost of the new tiled floor.
The equation to show the cost of the new tiled floor is 500 + 5x.
What is an equation to show the cost of the new tiled floor?An equation is the statement that illustrates the variables given. In this case, two or more components are taken into consideration to describe the scenario.
Let the square foot be illustrated as x.
In this situation, Desmond is looking to purchase a new tile floor for his kitchen. The floor cost $5 per square foot of tile in addition to a $500 instillation fee.
The equation will be:
= 500 + 5(x)
= 500 + 5x
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which graph best represents the following inequality y<_ -5/6 +2/3
The best representation of the inequality y ≤ - 5/6x + 2/3 is shown in figure by red shade region.
What is Inequality?A relation by which we can compare two or more mathematical expression is called an inequality.
We have to given that;
The inequality is,
⇒ y ≤ - 5/6x + 2/3
Now, We can draw the graph of inequality y ≤ - 5/6x + 2/3.
Hence, The best representation of the inequality y ≤ - 5/6x + 2/3 is shown in figure by red shade region.
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Griffin’s General Store is having a 30% off sale on fans. Robert paid $24. 50 for a fan that was on sale. What is the original price of the fan?.
Pamela is 12 years older than Jiri. The sum of their ages is 82 . What is Jiri's age?
It is given that Pamela is 12 years older than Jiri.
The sum of their ages is 82.
ExplanationLet the Pamela age be x.
Jiri age be y.
Then the equation formed is
\(x=y+12\)\(x+y=82\)Solve the above two equations and find x and y.
\(\begin{gathered} y+12+y=82 \\ 2y=82-12 \\ 2y=70 \\ y=35 \end{gathered}\)Now find x,
\(\begin{gathered} x+35=82 \\ x=82-35 \\ x=47 \end{gathered}\)AnswerHence the Jiri's age is 35 years.
If the interest earned on an account after 2 years is 15$ how much would it be after 10 years? why?
The amount of interest earned in 10 years is $75.
What is interest?Interest is the sum over and above the original amount (the amount borrowed) that is paid to a lender or depositor by a borrower or deposit-taking financial institution at a set rate. It is not the same as a fee that the borrower might pay to the lender or another entity.It also differs from a dividend, which is money given to shareholders (owners) by a company from its profit or reserve but not at a set rate predetermined in advance, but rather on a pro-rata basis as a share of the reward received by risk-taking business people when revenue is earned that exceeds all costs.So, interest earned after 2 years = $15
interest earned in 1 year = 15/2 = $7.5 interest earned in 10 years = 10 × $7.5= $ 75Therefore, the amount of interest earned in 10 years is $75.
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Please help me !! would appreciate
The answers that describe the quadrilateral DEFG area rectangle and parallelogram.
The correct answer choice is option A and B.
What is a quadrilateral?A quadrilateral is a parallelogram, which has opposite sides that are congruent and parallel.
Quadrilateral DEFG
if line DE || FG,
line EF // GD,
DF = EG and
diagonals DF and EG are perpendicular,
then, the quadrilateral is a parallelogram
Hence, the quadrilateral DEFG is a rectangle and parallelogram.
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Kira looked though online census information to determine the average number of people living in the homes in her city
First we need to identify if the data is qualitative or quantitative.
The data is average number of people living in the homes.
Qualitative data as its name indicates is an attribute or characteristic. It can not be measured e.g color. Quantitative data is such a data which can be counted or measured.
Since the average number of people can be counted and measured, the data is Quantitative.
In an observational study the individuals are observed. In the given case, Kira did not observed the individuals to gather the data, rather she used an Online resource to gather the data.
Therefore, the correct answer will be:Kira used published data that is quantitative.
Source: i found it in another brainly question which was the same as your question and was expert verified so i hope this helped
The area of a triangle is 30 square inches.
The base of the triangle is x - 6 inches,
and the height is x + 5 inches.
Find the value of x, and the dimensions of the triangle.
A = 1/2bh
x=
base=
height=
Answer:
x=10
base=4inches
height=15inches
Step-by-step explanation:
A=1/2bh
30=1/2(x-6)(x+5)
60= x²+5x-6x-30
x²-x-90=0
x²-10x+9x-90=0
x(x-10) +9(x-10)=0
(x+9)(x-10)=0
x= -9 or 10
x cannot be negative
Therefore x= 10
base= 10-6
=4inches
height=10+5
=15inches
The sum of $4,500 was divided among Anesha,Sian and Joanne. Sian received half,Anesha received $1,050 and Joanne received the remainder.
Calculate: the ratio in which 4500 was shared among the three of them
75/100 = 4/8
a
non-proportional
b
proportional
Answer:
I'm pretty sure its not proportional, because if you divide 8 and 4 you get a half, however when you divide 100 and 75 you get 1.333333.
Step-by-step explanation:
I'm sorry if this is wrong I haven't done this in a while....
if we select 4 young american men at random, what is the probability that they are all 68 inches or shorter (that is, each one of them is 68 inches or shorter)? enter your answer as a numerical value rounded to three decimal places (for ex., 0.111, no text).
The estimated probability that all four randomly selected young American men are 68 inches or shorter is approximately 0.004 or 0.4%.
To calculate the probability that all four randomly selected young American men are 68 inches or shorter, we need to consider the probability for each individual man and multiply them together.
Let's assume that the probability of an individual young American man being 68 inches or shorter is p. Since we are selecting four men at random, the probability of each man being 68 inches or shorter is the same, and we can multiply their probabilities together.
The probability of one man being 68 inches or shorter is p. Therefore, the probability of all four men being 68 inches or shorter is p × p × p × p = p^4.
However, we are not given the specific value of p in the problem statement. If we assume that the height of young American men follows a normal distribution, we can look up the corresponding z-score for a height of 68 inches or shorter and use the standard normal distribution to estimate the probability.
For example, if we find that a height of 68 inches corresponds to a z-score of -1.0, we can use a standard normal distribution table or a calculator to determine the probability of a z-score less than or equal to -1.0. Let's say this probability is approximately 0.1587.
Therefore, the estimated probability that all four randomly selected young American men are 68 inches or shorter would be (0.1587)^4 = 0.004.
Thus, the probability is approximately 0.004 or 0.4% rounded to three decimal places.
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It is estimated that the distance traveled by each volunteer driver at the Huntington VA Medical Center is normally distributed with a mean of 50 thousand miles and a standard deviation of 12 thousand miles each year. What percentage of drivers can be expected to travel either below 30 or above 60 thousand miles in a year?
Answer: 25.08%
Step-by-step explanation:
Given: Distance traveled by each volunteer driver is normally distributed.
Mean (\(\mu\)) = 50 thousand miles
standard deviation (\(\sigma\))= 12 thousand miles
Let X = distance traveled by each volunteer driver
Required probability : \(P(X<30)+P(X>60)\)
\(=P(\dfrac{X-\mu}{\sigma}<\dfrac{30-50}{12})+P(\dfrac{X-\mu}{\sigma}>\dfrac{60-50}{12})\\\\=P(z<-1.67)+P(z>0.83)\ \ \ [z=\dfrac{X-\mu}{\sigma}]\\\\= (1-P(z<1.67))+(1-P(z<0.83)\ \ \ [P(Z<-z)=1-P(Z<z)=P(Z>z)]\\\\= 2- P(z<1.67)-P(z<0.83)\\\\= 2- 0.9525-0.7967=0.2508\ \ [\text{By p-value table}]\)
Hence, percentage of drivers can be expected to travel either below 30 or above 60 thousand miles in a year = 25.08%
If each unit represents 3.2 miles, what us the distance from school to the football field?
Solve for x. Round your answer to the nearest tenth. A 12 8 E 10
The value of x shown in the right angled triangle is 15.9 units
What is an equation?An equation is an expression that contains numbers and variables linked together by mathematical operations of addition, subtraction, multiplication, division and exponents. An equation can either be linear, quadratic, cubic, depending of the degree of the variable.
Pythagoras theorem shows the relationship for the sides of a right angled triangle. It is given by:
Hypotenuse² = Adjacent² + Opposite²
From the diagram, substituting:
17² = x² + 6²
x² = 17² - 6²
x² = 253
x = 15.9 units
The value of x is 15.9 units
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you're given a six sided die. you're told that rolling an even number is as likely as rolling an odd number. you're told that rolling a 1, 2, or 3 is as likely as rolling a 4, 5, or 6. you're told that rolling a 1 is as likely as rolling a 6. is the probability of rolling a 3 equal to the probability of rolling a 4?
P(A) is the likelihood that a six-sided die will produce an even number when rolled (2, 4, or 6).
P(B) is the likelihood that a six-sided dice will land on four.
P(A) = 3/6 = 1/2
P(B) = 1/6
The probability of rolling an even number followed by a four, or P(C), equals P(A) * P(B) = 1/2*1/6 = 1/12 = 0.083 since events A and B are independent of one another.
With a six-sided die, there is a roughly 0.83*100 or 8.3% probability of rolling an even number (2, 4, or 6), followed by a four.
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Sugar Bombs cereal is including a Sherlock Holmes action-figure in each box during a
promotion. Claire plans to purchase boxes until she has all five action-figures. How many boxes
should she expect to buy if each figure is equally likely to be in any box??
a. Describe how you will use a random number table to conduct this simulation.
b. Show five trials by clearly labeling the random number table given below. Specify the outcome of each trial.
73184 95907 05179 51002 83374 52297 07769 99792 78365 93487
72753 36216 07230 35793 71907 65571 66784 25548 91861 15725
c. State your conclusion.
Part a: Ignoring those that are bigger than 4.
Part b: labeling the random number.
Part c: conclusion, Claire should plan to purchase 12 boxes.
Describe the term random number table?A table of digits is a random number table. The numbers 1, 2, 3,4,5,6,7,8,9,0 were used as the starting point for the random procedure that selected the digit for each location in the table. Each digit had an equal chance of being selected.Part a: random number table;
Let each of five trials figures be represented by a number from 0 to 4.Pick digits at random from a table of numbers, ignoring those that are bigger than 4. Determine how many digits (0–4) from the table—including repeats—are required to get all five numbers. One try, like this.Part b: labeling the random number.
7318495907 05179 51002(10 boxes) 8337452297 07769 99792 78365 9348772753 36216 (15 boxes) 07230 35793 71907 65571 66784(10 boxes) 25548 91861 15725.
Part c: conclusion,
On average, Claire should plan to purchase 12 boxes.
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Maria is using a coordinate plane with the axes labeled only with integers. She says that the point (−0. 5, 2) cannot be plotted because halves are not numbered on the x-axis. Write a note to Maria about her misunderstanding and explain how to plot the point.
Maria should move left, half of the division between 0 and -1, and from there, move two divisions or labels upwards.
The point Maria says cannot be plotted is point (-0.5, 2).
The axes label on the coordinate plane Maria is using = Integers.
Given that
Maria is using a coordinate plane with the axes labeled only with integers.
She says that the point (-0.5, 2) cannot be plotted because halves are not numbered on the x-axis.
According to the question
The axes label on a coordinate plane is marked according to the variable associated with the axes.
The values on the axes are presented using appropriate scales, marked as divisions that represent units of measure, such that the quantities which each division of the axis represents are made clear.
Point to be marked on the coordinate plane =(-0.5,2)
As points on both the X and Y axis are integers only.
To mark, -0.5, mark a line between, 0 and -1, which will be,-0.5.
You can mark, any terminating decimal on the number line, which is marked with integers only.
Terminating decimals are those decimals having in the denominator of a fraction.
The ordered pair of points enclosed in parenthesis consist of the x-value located on the left and the value of y is given by the value on the right of the ordered pair.
In the coordinate plane, Maria is using, a division on the coordinate axis represents a unit integer, therefore, to locate a point that is negative half (-0.5) of an integer, Maria has to move left a distance that is half the distance between two points.
Hence, Maria should move left, half of the division between 0 and -1, and from there, move two divisions or labels upwards.
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sorry I'm late
You can plot points that contain decimal numbers on a coordinate plane even if only integers are labeled on the axes. To plot (−0.5, 2), start at the origin and move left 0.5 units. This will be halfway between −1 and 0. Then move up 2 units and plot a point.
Explanation: It's the Sample Response
p and q are complex numbers such that |p| = 3x+2, |q|= 2x+1, and p + q = -2.
On what interval must x fall on?
0
O
[---]
O [3,00)
0 [-1,-1]
0 (-∞, -¹]
◄
1
In complex number, that x ranges from -5 to -1/2 and the correct option is (-∞, -1/2)
What is complex number?In mathematics, a complex number is an element of a number system that extends the real numbers with a specific element denoted i, called the imaginary unit and satisfying the equation \({\displaystyle i^{2}=-1};\)
every complex number can be expressed in the form a + bi, where a and b are real numbers. Because no real number satisfies the above equation, i was called an imaginary number by René Descartes.
Given that,
|P| = 3x + 2
|Q| = 2x + 1
P+Q = -2
We know that, from Cauchy inequalities
|P| + |Q| > |P+Q|
3x + 2 + 2x + 1 > - 2
5x + 3 > - 2
subtract both side by 3
5x > -5
Divide both side by 5
x > -1 first condition
Note that,
|P| > 0
Then,
3x + 2 > 0
3x > -2
x > -2/3
Also,
|Q| > 0
2x + 1 > 0
2x > -1
x > -1/2
So, comparing the three conditions
We see that x ranges from -5 to -1/2, this range covers all the other ranges
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a car is 90 inches long. a truck is 75% longer than the car. how long is the truck?
Step-by-step explanation:
Length of truck = y
y = 90 + 0.75(90)
y = 90 + 67.5
y = 157.5
The truck is 157.5 inches long.
Hope this helps!
The braking distance, in feet of a car a Travling at v miles per hour is given.
D= 2.6+ V^2/22
a. What is the braking distance, in feet, if the car is going 25 mph? 55 mph?
85 mph? Show your work.
b. Suppose that the car took 450 feet to brake. Use your computations in part (a)
to make a prediction about how fast it was going when the brakes were applied.
The braking distance is the distance the car travels before coming to a stop after the brakes are applied
a. The braking distances are as follows;
The braking distance at 25 mph, is approximately 63.7 ft.The braking distance at 55 mph, is approximately 298.35 ft.The braking distance at 85 mph, is approximately 708.92 ft.b. If the car takes 450 feet to brake, it was traveling with a speed of 98.211 ft./s
Reason:
The given function for the braking distance is D = 2.6 + v²/22
a. The braking distance if the car is going 25 mph is therefore;
25 mph = 36.66339 ft./s
\(D = 2.6 + \dfrac{36.66339^2}{22} = 63.7 \ ft.\)
At 25 mph, the braking distance is approximately 63.7 ft.
At 55 mph, the braking distance is given as follows;
55 mph = 80.65945 ft.s
\(D = 2.6 + \dfrac{80.65945^2}{22} \approx 298.35 \ ft.\)
At 55 mph, the braking distance is approximately 298.35 ft.
At 85 mph, the braking distance is given as follows;
85 mph = 124.6555 ft.s
\(D = 2.6 + \dfrac{124.6555^2}{22} \approx 708.92 \ ft.\)
At 85 mph, the braking distance is approximately 708.92 ft.
b. The speed of the car when the braking distance is 450 feet is given as follows;
\(450 = 2.6 + \dfrac{v^2}{22}\)
v² = (450 - 2.6) × 22 = 9842.8
v = √(9842.2) ≈ 98.211 ft./s
The car was moving at v ≈ 98.211 ft./s
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Use the Composite Simpson's rule with n = 6 to approximate / f(x)dx for the function f(x) = 2x + 1 Answer:
To approximate the integral of the function f(x) = 2x + 1 using the Composite Simpson's rule with n = 6, we divide the interval into six equal subintervals, calculate the function values at the subinterval endpoints, and apply Simpson's rule within each subinterval.
To apply the Composite Simpson's rule, we divide the interval of integration into six equal subintervals. Let's assume the interval is [a, b]. We start by finding the step size, h, which is given by (b - a) / n, where n is the number of subintervals. In this case, n = 6, so h = (b - a) / 6.
Next, we evaluate the function f(x) = 2x + 1 at the endpoints of the subintervals and calculate the corresponding function values. For each subinterval, we apply Simpson's rule to approximate the integral within that subinterval.
Simpson's rule states that the integral within a subinterval can be approximated as (h / 3) * [f(a) + 4f((a + b) / 2) + f(b)]. We repeat this calculation for each subinterval and sum up the results to obtain the approximation of the integral.
In the case of the function f(x) = 2x + 1, the integral can be computed analytically as x^2 + x + C, where C is a constant. Therefore, we can find the exact value of the integral over the given interval by evaluating the antiderivative at the endpoints of the interval and taking the difference.
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Find x-intercept and y - intercepts of y = 6x – 1
Answer:
Look at photo
Step-by-step explanation:
d) 16% of 1 m (in cm)
Answer: 16
Step-by-step explanation: 16%x1=.16 meters, then multiply by 100 to get 16 centimeters.
answer the question.
The radius x of the cylinder with a volume of 9000cm³ and height 12cm is approximately 15.4 cm.
What is the radius of the cylinder?A cylinder is simply a 3-dimensional shape having two parallel circular bases joined by a curved surface.
The volume of a cylinder is expressed as;
V = π × r² × h
Where r is radius of the circular base, h is height and π is constant pi.
From the diagram:
Volume V = 9000 cm³
Height h = 12 cm
Radius r = x
To find the radius x, plug the given values into the above formula and solve for x:
V = π × r² × h
9000 = π × x² × 12
9000 = 12π × x²
x² = 9000 / 12π
x² = 238.73
x = √238.73
x = 15.4 cm
Therefore, the value of is 15.4 cm.
Option B) 5.4 cm is the correct answer.
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Find the hypotenuse.
Answer:
56.3 units
Step-by-step explanation:
You want the side opposite a 102° angle in a triangle with a side of length 27 opposite a 28° angle.
Law of sinesThe law of sines tells you side lengths are proportional to the sine of the opposite angle.
b/sin(102°) = 27/sin(28°)
b = 27(sin(102°)/sin(28°)) ≈ 56.3
The length of side b is about 56.3 units.
__
Additional comment
The side labeled b is not the "hypotenuse" in this triangle. The term "hypotenuse" is reserved for the long side of a right triangle.
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The measures of the angles of a triangle are shown in the figure below. Solve for x.
Answer:
x = 2
Step-by-step explanation:
180= 90 + 57 + Z
Z = 180 - 90 - 57
Z = 33
33 = 7X + 19
7X = 33 - 19
7X = 14
X = 2
13.0 +4- 8 + 6r - 13.r - 4
PLEASE HELP WILL MARK BRAINY
The equation x^2 + kx + 5 = 0 has real root(s), where k is an integer. Write down two positive values of k.
Answer:
Step-by-step explanation:
The equation x^2 + kx + 5 = 0 has real roots if and only if the discriminant b^2 - 4ac is greater or equal to zero.
In this case, the discriminant is k^2 - 415 = k^2 - 20.
So we know that k^2 - 20 >= 0
therefore k >= sqrt(20) or k <= -sqrt(20)
Two positive values of k are:
k = sqrt(20)
k = sqrt(20) + n, where n is an integer greater than 0
Please note that this is an algebraic solution and doesn't account for any other possibilities that the problem or context may have.
the california state university (csu) system consists of 23 campuses, from san diego state in the south to humboldt state near the oregon border. a csu administrator wishes to make an inference about the average distance between the hometowns of students and their campuses. describe and discuss several different sampling methods that might be employed. would this be an enumerative or an analytic study? explain your reasoning
There are several different sampling methods that could be employed for this study, including:
Simple random sampling: This method involves randomly selecting a certain number of students from each campus and measuring the distance between their hometowns and their campuses.
Stratified random sampling: This method involves dividing the student population at each campus into different strata (e.g. by major or year in school) and then randomly selecting a certain number of students from each stratum.
Cluster sampling: This method involves randomly selecting a certain number of campuses and then measuring the distance between the hometowns of all students at those campuses and their respective campuses.
Multi-stage sampling: This method involves using a combination of the above methods, such as first using cluster sampling to select a certain number of campuses and then using stratified random sampling to select a certain number of students from each campus.
This study would be an enumerative study because it seeks to measure the characteristics of a population, in this case, the average distance between the hometowns of students and their campuses, by counting and measuring them.
It is not an analytic study because it doesn't involve testing a hypothesis or making causal inferences.
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Factor the following polynomial completely.
x^3 + x^2 - 6x
Answer:
x(x+3)(x-2)
Step-by-step explanation:
i hope this helps :)