Answer:
20/9 laps
Step-by-step explanation:
convert everything to minutes to make things a little easier
3/10 of an hour = 1/10 of an hour (6 minutes) * 3 = 18 minutes
2/3 of an hour = 1/3 of an hour (20 minutes) * 2 = 40 minutes
18 minutes = 1 lap
40 minutes = ? laps
multiply the first equation by 40/18 to get 40 minutes on the left sides
40 minutes = 40/18 laps = 20/9 laps
Why Mean absolute error is always positive?
The reason is that the absolute value of a number discards the sign, so it can't be negative as the absolute value of a number is the distance of the number from zero.
Mean Absolute Error (MAE) is a measure of the difference between the predicted value and the actual value. It is calculated by taking the absolute value of the difference between each predicted value and the actual value, and then averaging the differences.
MAE is always positive because it is calculated using the absolute value of the errors, which always results in a positive value. The absolute value function removes the negative sign from any negative errors, so all errors are treated as positive. Therefore, the sum of all errors will always be positive regardless of whether the predicted values are greater or less than the actual values.
It's used in regression problems to measure how good the model is by comparing the actual value and the predicted value. Since MAE is a positive value, it gives a clear understanding of how far the predicted value is from the actual value, which helps to understand the model's performance.
Read more about Mean Absolute Error:
https://brainly.com/question/23983032
#SPJ4
please help with 4, 5 and 6 pleasee someone
The volume of the ice cream cone is 100.48 in³.
The volume of the basketball is 267.95 in³.
The volume of the can of corn is 169.56 in³
How to find the volume of the ice cream cone?To find the volume of the ice cream cone, use the formula for the volume of cone, which is given by:
V = (1/3)πr²h
r = 4 in and h = 6 in
V = 1/3 × 3.14 × 4² × 6 = 100.48 in³
To find the volume of the basketball, use the formula for the volume of sphere, which is given by:
V = (4/3)πr³, where r = 4 inches
V = (4/3) × 3.14 × 4³ = 267.95 in³
To find the volume of the can of corn, use the formula for the volume of cylinder, which is given by:
V = πr²h, where r = 3 in and h = 6 in
V = 3.14 × 3² × 6 = 169.56 in³
code: HG DA CF
Learn more about volume of cone on:
brainly.com/question/28109167
#SPJ1
uppose that motorola uses the normal distribution to determine the probability of defects and the number of defects in a particular production process. assume that the production process manufactures items with a mean weight of 10 ounces. calculate the probability of a defect and the suspected number of defects for a 1,000-unit production run in the following situations. (a) the process standard deviation is 0.18, and the process control is set at plus or minus one standard deviation. units with weights less than 9.82 or greater than 10.18 ounces will be classified as defects. if required, round your answer for the probability of a defect to four decimal places and for the number of defects to the nearest whole number. probability of a defect: number of defects: (b) through process design improvements, the process standard deviation can be reduced to 0.06. assume that the process control remains the same, with weights less than 9.82 or greater than 10.18 ounces being classified as defects. if required, round your answer for the probability of a defect to four decimal places and for the number of defects to the nearest whole number. probability of a defect: number of defects: (c) what is the advantage of reducing process variation, thereby causing process control limits to be at a greater number of standard deviations from the mean? reducing the process standard deviation causes a substantial decrease in the number of defects.
P( X < 9.85 or X > 10.15 ) ≈ 0.3171 up to four decimal places.
P( X < 9.85 or X > 10.15 ) ≈ 0.0027 up to four decimal places.
ProbabilityThe simple definition of probability is the likelihood that something will occur. We can discuss the probabilities of different outcomes, or how likely they are if we are unclear about how an event will turn out. Statistics refers to the study of occurrences subject to probability.
According to the question
a) Assuming that X is the random variable that takes the place of the number of defectives and has a normal distribution with a mean of 10 ounces and a standard deviation (σ) of 0.15.
The random variable's values deviate from the mean by 1, causing them to either exceed or fall short of (10 + 0.15) and (10-0.15)
= 10.15 or 9.85.
The following formula may be used to determine the likelihood that there will be either more or lesser defects than the range of 10.15 to 9.85:
P( X < 9.85 or X > 10.15 ) = 1 - P [tex](\frac{9.85-10}{0.15} < \frac{X-10}{0.15} < \frac{10.15-10}{0.15} )[/tex]
P( X < 9.85 or X > 10.15 ) = 1 - φ(1) - φ(-1)
Now we calculate the value of z for z = 1 and z = -1; we have: 0.841345 and 0.158655 respectively
P( X < 9.85 or X > 10.15 ) = 1 - (0.841345 - 0.158655)
P( X < 9.85 or X > 10.15 ) = 0.31713
P( X < 9.85 or X > 10.15 ) ≈ 0.3171 up to four decimal places.
b) It is possible to lower the process standard deviation to 0.05 by making modifications to the process design.
The following formula may be used to determine the likelihood that the number of defectives is either larger than 10.15 or lesser than 9.85:
P( X < 9.85 or X > 10.15 ) = 1 - P [tex](\frac{9.85-10}{0.15} < \frac{X-10}{0.15} < \frac{10.15-10}{0.15} )[/tex]
P( X < 9.85 or X > 10.15 ) = 1 - φ(3) - φ(-3)
Now we calculate the value of z for z = 3 and z = -3; we have: 0.99865 and 0.00135 respectively
P( X < 9.85 or X > 10.15 ) = 1 - (0.99865 - 0.00135)
P( X < 9.85 or X > 10.15 ) = 0.00271
P( X < 9.85 or X > 10.15 ) ≈ 0.0027 up to four decimal places.
(c) What is the benefit of increasing the number of standard deviations from the mean for process control limits by minimizing process variation?
As we can see from the reduction from a to b above, the key benefit of minimizing process variance is that it will decrease the likelihood of receiving a defective item.
To know more about probability on brainly : brainly.com/question/30034780
#SPJ4
16. if you change your lights to high beam when the driver of an approaching vehicle fails to dim his lights, the probability of an accident increases because:
If blinded by an approaching motor vehicle at night, it is best to slow down and avoid looking directly into the lights of the approaching vehicle which is denoted as option C.
What is a Vehicle?This refers to something which is used to transport people and goods from one place to another and examples include car, lorry etc. The lights are used at night for proper vision of the road so as to reduce the risk of accidents on the road.
here,
In a situation whereby an individual is blinded by an approaching motor vehicle at night, it is best to slow down and avoid looking directly into the lights of the approaching vehicle so as to prevent temporary vision impairment.
This helps to prevent accidents on the road and for the safety of the driver thereby making it the correct choice.
Read more about Vehicles here:
brainly.com/question/6962532
#SPJ1
What is the difference between the best and worst credit score interest rates?
For a car loan of $25,000, what is the difference in the amount of interest paid the first month between the average and worst score? (I=Prt)
If you (or your parents) want to pay the loan off quicker, which interest rate would allow you to do so while paying the least amount of money, and why?
The difference in the amount of interest paid the first month between the average and worst score is given as follows:
$94.58.
The average interest rate would allow you to do so while paying the least amount of money, due to the lower rate compared to the poor.
How to model the interest?The equation to model the interest accrued after t years is given as follows:
I(t) = Prt
.
In which the parameters of the equation are explained as follows:
P is the value of the initial deposit.r is the interest rate, as a decimal.t is the time, in years.For the average score, the parameters are given as follows:
P = 25000, r = 0.0535, t = 1/12. (as one month = 1/12 of a year).
Hence the interest accrued is of:
I = 25000 x 0.0535 x 1/12
I = 111.46.
For the poor score, the parameters are given as follows:
P = 25000, r = 0,0989, t = 1/12. (as one month = 1/12 of a year).
Hence the interest accrued is of:
I = 25000 x 0.0989 x 1/12
I = 206.04.
Hence the difference is of:
206.04 - 111.46 = $94.58.
More can be learned about simple interest at https://brainly.com/question/20690803
#SPJ1
Answer:$
94.58
Step-by-step explanation:
Find the slope of the line that passes through these two points
Answer: slope is 1 or m=1
Step-by-step explanation:
Put the following values of 0 (in degree) in order from least to greatest
Answer:
4) is the least with 14.111°
1) is next with 17.9°
2) is next with 30.22°
5) is next with 65.84°
3) is the greatest with 86.82°
Step-by-step explanation:
1) csc θ = 3.2547
1/sinθ = 3.2547
sinθ = 1/3.2547
θ = [tex]sin^{-1}[/tex] 1/3.2547 or 17.9 ° ( I checked using a calculator here)
[tex]sin^{-1}[/tex]x is also known as arcsin.
Now, i will do the rest the same way.
2) θ = arccos(0.8641) = 30.22°
3) θ = arctan(17.9926) = 86.82°
4) θ = arcsin(0.2438) = 14.111°
5) θ = arctan(1/0.4485) = 65.844°
So, now u can tell the orders.
Pls mark as brainliest. This took a while. Cheers.
how many gallons of water should be packed for two people for three days in the case of an emergency?
According to the Federal Emergency Management Agency (F.E.M.A.) , In case of emergency for two people , three days , number of gallons that should be packed is 6 gallons .
During Emergency Situations as we stock food, we need to take into account the family’s unique needs and tastes.
We try to include foods that require no refrigeration, water, special preparation, or cooking are best in case of emergency .
So , by FEMA , it states that we need to store at least one gallon per person per day .
Since there are two people , so , we need 2 gallons per day ;
and for three days , it would requires [tex]2 \times 3 = 6[/tex] gallons per day .
Therefore , 6 gallons of water should be packed .
Learn more about Emergency Situation here
https://brainly.com/question/28145452
#SPJ4
insert a monomial so that the resulting expression can be represented as the square of a binomial. __-42pq+49q^2
The monomial that completes the expression hence it is the square of a binomial is given as follows:
9p².
How to model the square of a binomial?The square of a binomial is modeled as follows, considering that the binomial can be either a sum or a subtraction.
(a + b)² = a² + 2ab + b².(a - b)² = a² - 2ab + b².The expression for this problem is given as follows:
x - 42pq + 49q².
In which x is the monomial.
Hence the system of equations to obtain the values of the parameters a and b are given as follows:
2ab = 42pq.b² = 49q².Hence the parameter b is obtained as follows:
[tex]b = \sqrt{49q^2}[/tex]
b = 7q.
The parameter a is obtained as follows:
2ab = 42pq
14aq = 42pq
14a = 42p
a = 42p/14
a = 3p.
Hence monomial that makes the expression that square of a binomial is given as follows:
a² = (3p)² = 9p².
More can be learned about the square of a binomial at https://brainly.com/question/12336181
#SPJ1
Translate the sentence into an equation using n to represent the unknown number. Then solve the equation for n.the quotient of a number divided by 11 is 0.5
After translating the sentence into an equation using n to represent the unknown number and solving the equation the unknown number is 5.5.
In the given question, we have to translate the sentence into an equation using n to represent the unknown number. Then solve the equation for n. the quotient of a number divided by 11 is 0.5.
Let the number is n. So
n/11 = 0.5
Now solving the expression to find the value of n.
Multiply the 11 on both side, we get
n = 0.5×11
n = 5.5
Hence, the unknown number is 5.5.
To learn more about translate the sentence link is here
brainly.com/question/29149807
#SPJ4
1. why do financiers need hypothesis testing? data sets do not cover every instance of an event or measurement. so they can predict within a degree of certainty where stock prices will go in the future. stock and bond pricing data is difficult to obtain and impossible to predict. the normal distribution does not give them enough information to make sound decisions. 2. what method would you use to gather a data set on voter preferences? hypothesizing sampling distributing engineering 3. the null hypothesis represents . no idea at all, a placeholder the new idea that you wish to prove the old idea that you wish to disprove a third idea that is completely neutral 4. the alternative hypothesis represents . no idea at all, a placeholder the new idea that you wish to prove the old idea that you wish to disprove a third idea that is completely neutral 5. the result of any hypothesis test is . we reject or fail to reject the null hypothesis we accept or fail to accept the alternative hypothesis we accept or fail to accept the null hypothesis
Hypothesis testing is an act in statistics whereby an analyst tests an assumption regarding a population parameter.
The methodology employed by the analyst depends on the nature of the data used and the reason for the analysis.
Hypothesis testing is used to assess the plausibility of a hypothesis by using sample data.
Such data may come from a larger population, or from a data-generating process.
1 The correct option is B.
As the hypothesis testing helps to predict when certain certainty within which range the stock value will fluctuate.
The sampling is used to gather data from the population.
The sampling can be either random or systematic. The correct option is B.
2 The correct option is C
as the null hypothesis represents the current and present claim or knowledge.
The Alternate hypothesis is the assumption about the parameter need to be checked against the null hypothesis that is it is a new assumption to be proven. So the correct option is B.
3 The correct option is A.
As either there can be sufficient evidence to reject the null hypothesis or insufficient evidence to reject the null hypothesis.
To know more about Hypothesis testing visit brainly.com/question/17099835
#SPJ4
John has four more than twice as many baseball cards as Caleb. If together the boys own 286 baseball cards, how many does Caleb have?
Based on the solution to a system of equations, with John having four more than twice as many baseball cards as Caleb, and altogether the boys owning 286 baseball cards, Caleb alone has 94.
What is a system of equations?A system of equations or simultaneous equations is two or more equations solved simultaneously or concurrently.
Let the number of baseballs Caleb owns = c
Let the number of baseball John has = 2c + 4
The total number of baseball = 286
c + 2c + 4 = 286
3c = 282
c = 94
Thus, Caleb has 94 baseballs while John has 192 baseballs.
Learn more about simultaneous equations at https://brainly.com/question/15165519
#SPJ1
Which is the graph of the cube root function f(x) = ³√√/x?
O
32
-10-8-64-2₁)
2
&&&&
s 4
324
3
6 8 10 x
The required graph has been attached below which represents the cube root function f(x) = ³√x.
The cube root function is given in the question, as follows:
f(x) = ³√x
We have to determine the graph of the given function.
The domain of the square root parent function is x ≥ 0 as the square root of only non-negative values exists and that of negative values does not exist, while the domain of the cube root parent function is the set of all real numbers as the cube root of all numbers exists.
Thus, the required graph has been attached below which illustrates the cube root function f(x) = ³√x.
Hence, the correct answer would be an option (B).
Learn more about the domain and the range here:
brainly.com/question/21027387
#SPJ1
17) Find the two consecutive integers such that √214
lies between them.
18) Find the two consecutive integers such that power of 3√441
lies between them.
The consecutive integers for the two roots are:
17) 14 < √214 < 15
18) 7 < ∛441 < 8
How to find the two integers?17) First, we want to find two consecutive integers such that √214 lies between them.
To do so, we just need to find two consecutive integers such that when we square them, one is smaller than 214, and the other is larger than 214.
For example:
13*13 = 169
14*14 = 196
15*15 = 225
Now we can see that:
14² < 214 < 15²
If we apply the square root we get:
14 < √214 < 15
Thes are the two integers.
18) Now we want to do the same thing, but this time with:
∛441
This time we need to cube our numbers.
7*7*7 = 343
8*8*8 = 512
These are the two integers such that:
343 < 441 < 512
Now we can apply the cube root to get:
∛343 <∛ 441 < ∛512
7 < ∛441 < 8
Learn more about square roots by reading:
https://brainly.com/question/98314
#SPJ1
Each base in this oblique prism is a right
triangle.
What is the volume of the figure?
The volume of the figure is V = (1/2)xy*h.
The volume of an oblique prism can be found by multiplying the area of its base by its height.
Since the bases of the prism are right triangles, we can use the formula for the area of a right triangle, which is (1/2)base*height.
If we assume that the base is the right triangle with legs x and y, and the height of the prism is h. The volume of the prism can be calculated as:
V = (1/2)xy*h
Note that this formula is valid only if the prism is a right triangular prism and the bases are right triangles, otherwise we would need more information to calculate the volume.
Thus, The volume of the figure is V = (1/2)xy*h.
To learn more about the volume of the prism,
Visit; brainly.com/question/1578538
#SPJ4
what is 1 2/5 + 1 1/3=??
Answer:
Step-by-step explanation:
2.73 (rounded)
The are and perimeter of a rectangle field arev60m² and 32m respectively .find the length and breadth of the field
The length and breadth of the rectangle are 10m and 6m respectively
What is length and breadth of a rectangle?The shorter side of a rectangle is called its breadth (width) and the longer side is the length.
The area of a rectangle = L×B
and the perimeter = 2(L+B)
where L is the length and B is the breadth
therefore 60 = LB, and B = 60/L
and 32 = 2(L+B)
substitute 60/L for B
32 = 2(L+60/L)
divide both sides by 2
16 = L+60/L
16 =( L²+60)/L
therefore L² +60 = 16L
L² -16L +60= 0
L²-10L-6L +60 = 0
L(L-10)-6(L-10) = 0
L-10 = 0 or L-6 = 0
therefore L = 10 or 6
when L is 10m then B = 60/10 = 6m
when L is 6m then B = 60/6 = 10m
Since the longer side is length then L = 10m and B = 6m
therefore the length and breadth of the rectangle are 10m and 6m respectively.
learn more about length and breadth of rectangle from
https://brainly.com/question/25292087
#SPJ1
1. Write the explicit formula for the sequence below
The explicit formula for the arithmetic sequence 40, 37, 34, 31 is given as follows:
[tex]a_n = 40 - 3(n - 1)[/tex]
What is an arithmetic sequence?An arithmetic sequence is a sequence of values in which the difference between consecutive terms is constant and is called common difference d.
The nth term of an arithmetic sequence is given by the explicit formula presented as follows:
[tex]a_n = a_1 + (n - 1)d[/tex]
In the sequence, each term is the previous term subtracted by three, hence the common difference is given as follows:
d = -3.
The first term is of:
[tex]a_1 = 40[/tex]
Hence the explicit formula is given as follows:
[tex]a_n = 40 - 3(n - 1)[/tex]
More can be learned about arithmetic sequences at https://brainly.com/question/6561461
#SPJ1
The sum of two numbers is 19, and their difference is 55. What are the two numbers?
Answer:
37 and -18
Step-by-step explanation:
Answer:
let x and y be two numbers
What is the shape of an absolute value function?
There are many types of functions and each type of function has its own characteristics. This implies that their graph has also its own characteristics.
Based on the graph, the absolute value function has a "V-Shaped" graph.
Every absolute value graph makes a “V”-shaped figure. It consists of two parts: one with a negative slope and one with a positive slope. The point of their intersection is called the vertex. An absolute value graph is symmetrical, meaning that it can be folded in half on its line of symmetry.
An absolute value graph has a distinct V-shape. It is symmetric about the vertical line which passes through its vertex. The vertex of an absolute value function is the point at which the graph changes direction. Since the graph of y=|x-1|+1 changes direction at (1,1), this point is the vertex.
Read more about function:
https://brainly.com/question/25638609
#SPJ4
1) Form a polynomial whose real zeros and degree are given.
Zeros: -1, 0, 6 Degree: 3
2) Information is given about a polynomial f(x) whose coefficients are real numbers. Find the remaining zeros of f.
Degree 4; zeros: 7i, 2, -2
The polynomial whose real zeros and degree are given will be x(x + 1)(x - 6). And the remaining zeroes of f(x) will be - 7i.
How to get polynomials with zeroes?Let a, b, c, and d are the zeroes of the polynomial.
Then the polynomial is given as,
⇒ (x - a)(x - b)(x - c)(x - d)
The degree of the polynomial will be greater than or equal to the number of zeroes.
Form a polynomial whose real zeros and degree are given.
Zeros: -1, 0, 6 and Degree: 3
Then the polynomial is given as,
⇒ (x + 1)(x + 0)(x - 6)
⇒ x(x + 1)(x - 6)
Information is given about a polynomial f(x) whose coefficients are real numbers.
Degree 4; zeros: 7i, 2, -2
The last root will be opposite to the 7i and will be - 7i.
The polynomial whose real zeros and degree are given will be x(x + 1)(x - 6). And the remaining zeroes of f(x) will be - 7i.
More about the polynomial link is given below.
https://brainly.com/question/11536910
#SPJ1
our fair six-sided dice are rolled. what is the probability that at least two dice show a 3? express your answer as a common fraction.
The probability that at least two dice show 3 in the fraction form will be 1/9.
What is probability?Its fundamental concept is that someone will nearly surely occur. The proportion of positive events in comparison to the total of occurrences.
Then the probability is given as,
P = (Favorable event) / (Total event)
The total number of events is given as,
Total event = 6 x 6
Total event = 36
The favorable events are given as,
Favorable events = 4 {(1, 1), (1, 2), (2, 1), (2, 2)}
Then the probability that at least two dice show a 3 will be given as,
P = 4 / 36
P = 1/9
The probability that at least two dice show 3 in the fraction form will be 1/9.
More about the probability link is given below.
https://brainly.com/question/795909
#SPJ1
is this mapping a diagram function, why or why not?
Answer:
Yes it’s functions, because for each input there is an output.
So far this week, Sara has run 3.5 miles. Her goal is to run a total of 8.75 miles. If Sara runs
1.75 miles per day, how many more days must she run to reach her goal? Write and solve
an equation. Check your solution.
Answer: 3 more days
Step-by-step explanation:
8.75mi(has to run)-3.5mi(already ran)=5.25mi(left to run)
5.25mi(left to run)/1.75mi(how many she runs in a day)=3 more days (until she runs 8.75 mi)
if the volume of a cube is increased by a factor of 10, by what factor does the surface area per unit volume change? give your answer to two significant figures.
The surface area per unit volume is increased by a factor of 1000.
1000
The surface area of a cube is 6 times the square of its side length, (A = 6s^2). Since the volume of a cube is the cube of its side length, (V = s^3), the surface area per unit volume is 6/s.
If the volume is increased by a factor of 10, the side length is increased by a factor of 10^(1/3), which is about 3.162. The surface area per unit volume is therefore increased by a factor of 6/3.162, which is about 1,000.
The surface area per unit volume is increased by a factor of 1000.
Learn more about area here
https://brainly.com/question/13194650
#SPJ4
. On a sunny summer day, you are taking the scenic boat ride from Stein am Rhein, Switzerland, to Schaffhausen, down the Rhein River. This nonstop trip takes 40 minutes, but the return trip to Stein, upstream, will take a full hour. Back in Stein, you decide to stay on the boat and continue on to Constance, Germany, now traveling on the still waters of Lake Constance. How long will this nonstop trip from Stein to Constance take
The nonstop trip from Stein to Constance will take 48 minutes.
What is distance?Distance is the sum of an object's movements, regardless of direction. Distance can be defined as the amount of space an object has covered, regardless of its starting or ending position.
Let us suppose the distance between Stein to Constance as d:
Then according to the distance formula, we have:
Distance = Speed * Time
Now, let the velocity of boat be v, and the velocity of water be x.
To go from Stein to Schaffhausen it takes 40 minutes. This is represented as:
d = (v + x) (40) equation 1
To go from Schaffhausen to Stein it takes 60 minutes, this is represeted as:
d = (v - x)(60) equation 2.
Divide the equation 1 and equation 2 wegwt thw following:
3v - 3x = 2v + 2x
v = 5x
Substitute this value in the distance formula:
d = (5x + x) (40)
d = 240x
d/ x = 240
X can be written as v/5, substitute this value in the above equation we have:
d/ v = 48 minutes.
Hence, nonstop trip from Stein to Constance will take 48 minutes.
Learn more about distance here:
https://brainly.com/question/4199102
#SPJ4
shane made a scale drawing of a house and its lot. the scale of the drawing was 11 millimeters : 7 meters. if the lawn in the backyard is 66 millimeters long in the drawing, how long is the actual lawn?
Each piece of room or house length and width should be inverted to be scaled. For instance, a rectangle measuring 66" by 7" might be used to depict a dresser that is 5' by 2' at a scale of 14" = 1'.
A table that is 4' by 4' would also be 1" by 1" in size. [7] When measuring furniture that isn't square or rectangular, make the smallest square or rectangle the item might possibly fit and then use those dimensions. For instance, to represent a wingback chair that is 2' 6" wide and 2' deep, use a 5/8" by 1" rectangle.
Next, draw a rough outline of the chair inside the rectangle. On a piece of graph paper that is blank, draw the furnishings. Use graph paper without the room's floor plan drawn on it.
Learn more about scale drawing Visit : brainly.com/question/12626179
#SPJ4
What are the rules of absolute value?
Isolate the absolute value on one side of the equation, Then set its contents equal to both the positive and negative value of the number on the other side of the equation and solve both equations.
Piecewise Definition: with respect to a number of discrete intervals, sets, or pieces.
[tex]|a|=\left \{ {{a if a > =0} \atop {-aifa < =0}} \right.[/tex]
Square root definition:
|a|=√a²
There are a few Rules to define absolute value:
1. |–a| = |a|
2. |a| ≥ 0
3. Products: |ab| = |a|*|b|
4. Quotients: |a / b| = |a| / |b|
5. Powers: |an| = |a|n
6. Triangle Inequality: |a + b| ≤ |a| + |b|
7. Alternate Triangle Inequality: |a – b| ≥ |a| – |b|
To know more about the rules of absolute value:
https://brainly.com/question/14125341
#SPJ4
Amira left her house and drove to the store. She stopped and went
inside. From there, she drove in the same direction until she got to the
bank. She stopped and went inside the bank. Then she drove home.
The graph below shows the number of blocks away from home Amira
is a minutes after she left her house, until she got back home.
Distance (Blocks from Home)
INNANG
25
24
23
22
21
20
19
18
17
16
15
755544
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
Time Elapsed (Minutes)
Which of the following statements is true of
Amira at time x = 22?
When x=22 minutes, Amira was 9 blocks away from the house.
What is the graph?Graph is a mathematical representation of a network and it describes the relationship between lines and points. A graph consists of some points and lines between them. The length of the lines and position of the points do not matter.
From the given distance time graph,
At time x=22,
Corresponding y value is 9
Therefore, when x=22 minutes, Amira was 9 blocks away from the house.
To learn more about the graph visit:
brainly.com/question/14375099.
#SPJ1
In a Petri dish, there were initially 4 bacteria. Five hours later, there were 972 of them.
Find the exponential function that satisfies the given conditions.
f(t) = 4e^?*t
Answer:
An exponential function has the form y = ab^x, where a and b are constants and x is the independent variable (in this case, time).
Given the initial condition that there were 4 bacteria in the dish, we know that when x = 0, y = 4.
So we can set up the equation: 4 = a(b^0)
Given the condition that 5 hours later there were 972 bacteria in the dish, we know that when x = 5, y = 972.
So we can set up the equation: 972 = ab^5
We can now solve for b by dividing the two equations:
972/4 = ab^5/a(b^0) = b^5
b = (972/4)^(1/5)
With b calculated, we can substitute it into one of the equations to find a:
4 = a(b^0) = ab^0 = a
So the exponential function that satisfies the given conditions is:
y = ab^x = 4(b^x) = 4( (972/4)^(1/5)^x)
This function models the growth of bacteria in the Petri dish
I don't know exactly what the question was, but I'm guessing it's the bacteria growth rate.
You can use the formula
final amount of bacteria = (initial amount of bacteria)(bacteria growth rate)^number of hours
So,
972 = (4)(x)^5
then simplify this equation to solve for x
x=3
the amount of bacteria increased 3 times more every hour for 5 hours
#copied