What is the value of 8 in the number 475.082
Answer:
the 8 is the in the tenth place
The function f(x) = −23x + 4 represents the average number of teacher absences due to illness, f(x), when the school uses x bottles of hand sanitizer per month. What is a reasonable domain for the function in this situation?
A. x ≤ 6
B. 0 ≤ x ≤ 6
C. 0 ≤ x ≤ 4
D. all real numbers
The reasonable domain for the function f(x) = -2/3x + 4 in this situation is B. 0 ≤ x ≤ 6
How to determine the domain of the function?In this question, we have:
Function, f(x) = -2/3x + 4
Where
x is the bottles of hand sanitizer per month
The function f(x) cannot be less than 0
So, we have
-2/3x + 4 = 0
This gives
-2/3x = -4
Solve for x
x = 6
This means that x cannot exceed 6
Hence, the domain is (b) . 0 ≤ x ≤ 6
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A jet travels 480 miles in 5 hours. At this rate, how far could the jet fly in
10 hours? What is the rate of speed of the jet?
Answer:1344
Step-by-step explanation:
Answer:
The jet could fly 960 miles in 10 hours. And the rate of speed is 96 mph.
Step-by-step explanation:
What is the value of S4 for
0 554
O
64
O
(J1
14
O 516
05/0
O
56
n-1
24 (1)
n=1
?
Answer: It's not entirely clear what is being asked for in the given question, as it is not clear what the numbers represent or what operation is being performed. If you could provide more information or context, I would be happy to try and help you.
Step-by-step explanation:
The probability that a patient recovers from a disease is 0.3.
If 6 people are known to have contacted the disease, what is the probability that at least 4 survive?
Answer:
0.07047
Step-by-step explanation:
at least 4 people survive is
4 people survive and 2 don't +
5 people survive and 1 doesn't +
all 6 people survive
the probability of 4 people to survive is the product of the individual probabilities :
0.3×0.3×0.3×0.3 = 0.3⁴ = 0.0081
times the probability 2 don't survive
0.7×0.7 = 0.49
0.0081×0.49 = 0.003969
now, the chance that 4 out of 6 survive is that probabilty times how many times we can select 4 out of 6.
to select 4 out of 6 is
\( \binom{6}{4} \)
= 6! / (4! × (6-4)!) = 6! / (4! × 2!) = 6×5/2 = 30/2 = 15
so, the probability of having 4 survivors is
15×0.003969 = 0.059535
the probability of 5 people surviving is 0.3⁵ times one not
0.3⁵×0.7 = 0.001701
we have 6 over 5 combinations to pick 5 out of 6 = 6.
so, in total for 5 survivors we get
6×0.001701 = 0.010206
and the probabilty of all 6 surviving is
0.3⁶ = 0.000729
so, the probability of at least 4 out of 6 surviving is
0.059535 +
0.010206 +
0.000729
---------------
0.070470
(lesson 3.6: simulating random variables.) if is a unif(0,1) random number, what is the distribution of ? group of answer choices
The distribution of -0.5ln(U) is, 2u= 2e⁻²\(^{y}\), y > 0 which is the pdf of exponential distribution with mean 1/2. This is simulating random variables
Given U~U(0,1)
We have to find the distribution of -\(\frac{1}{2}\) log U
let y = -\(\frac{1}{2}\) log U
the probability density function (pdf) of U,
f(u) = \(\left \{ {{1,0 < u < 1} \atop {0,ow}} \right.\)
when u = 1, y = -\(\frac{1}{2}\) log 0
= -\(\frac{1}{2}\) × -∞ -∞
log 0 = -∞
log 1 = 0
log ∞ = ∞
when u = 1, y = -\(\frac{1}{2}\) log 1
= 0
∴ 0<y<∞ is the range of y
now y = -\(\frac{1}{2}\) log U, -2y = log u, u = e⁻²\(^{y}\)
by the method of transformation we can find the distribution of y
y = -\(\frac{1}{2}\) log u, then \(\frac{dy}{du}\) = \(\frac{-1}{2u}\) < 0, u <0
that is, y is monotone decreasing for all u = (0,1)
then the pdf of y, h(y) = f(u)
=1 × 1/2u - 1
2u= 2e⁻²\(^{y}\), y > 0
which is the pdf of exponential distribution with mean 1/2.
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Write 0.000000624 in scientific notation
Answer:
6.24 x \(10^{-7}\)
Step-by-step explanation:
0.000000624 in scientific notation is 6.24 x \(10^{-7}\)
Answer:
Step-by-step explanation:
The resulting number is in scientific notation. In this case, the number is 6.24 * 10^-7.
Porcent. Word Problems
1) Potor want to his local zoo that featured 28 bird cachibits. If these bird ochibits make up
80% of the zoo's exhibits, then how many exhibits does the zoo have in total? Round your
answer to the nearest whole number if necessary.
Answer:
There are 35 total exibits.
Step-by-step explanation:
8x = 88
I can’t figure this out 10 points if you answer
Answer:
divide 88 by the number of x
88/8= 11
X = 11
Answer:
x=11
Step-by-step explanation:
8x=88
You use inverse operation which means you would divide 8 on both sides to isolate x on one side resulting in x=11
Picture included!!! Please help! Suppose a = 10 and b = 24. Give the value of each of the following. Give answers as integers or rounded to 2 decimal places as appropriate.
Answer:
A = 22.62°
B = 67.38°
c = 26
Step-by-step explanation:
\(a^2+b^2=c^2\\10^2+24^2=c^2\\100+576=c^2\\676=c^2\\26=c\)
\(\sin A=\frac{\text{Opposite}}{\text{Hypotenuse}}=\frac{10}{26}\\\\A=\sin^{-1}(\frac{10}{26})\\\\A\approx22.62^\circ\)<-- You can also use other trig ratios
\(B=180^\circ-(90^\circ+22.62^\circ)=180^\circ-112.62^\circ=67.38^\circ\)
There's no specific order in how to solve for A and B, so there may be more than one way to approach these solutions.
Enter <, >, or = to make the
statement true.
.320 [?] .051
Answer: .320 is greater than .051 (use the > sign)
Step-by-step explanation:
too lazy to explain, but yes
A rectangular picture has a length of 40 inches and a width of 9 inches.
What is the length of the diagonal of the picture in inches?
Enter your answer in the box.
inches
Step-by-step explanation:
the length and the width of a rectangle create a right-angled triangle, with the diagonal being the Hypotenuse of that triangle (the baseline, opposite of the 90° angle).
so, we can use Pythagoras
c² = a² + b²
with c being the Hypotenuse.
so, we have here
diagonal² = 40² + 9² = 1600 + 81 = 1681
diagonal = sqrt(1681) = 41 in
in which direction does the left side of the graph of this function point fx x4 x34x 2
In Southwest Direction, the left side of the graph of this function point.
What is a function?
A unique kind of relation called a function is one in which each input has precisely one output. In other words, the function produces exactly one value for each input value. The graphic above shows a relation rather than a function because one is mapped to two different values. The relation above would turn into a function, though, if one were instead mapped to a single value. Additionally, output values can be equal to input values.
The x-values are input into the function machine. The function machine then performs its operations and outputs the y-values. The function within can be any function.
f(x)= \(x^{4}\)-x³+4x-2
it will not pass through the origin, as, f(0)=-2
It is a polynomial of degree four.
The function in question contains two genuine roots and two fictitious roots.
In the third quadrant and a small portion of the fourth quadrant, the left side of the function is located after drawing a line of symmetry. A line of symmetry is at approximately x=0.14.
Hence, In Southwest Direction, the left side of the graph of this function point.
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2. Use the conversion table to convert the following metric units into the given English units.
Round your answers to two decimal places.
a. 12 mm to inches
b. 75 km to miles
C. 150 m to feet
d. 63 square meters to square feet
e 45 meters per second to feet per second
1.9 L (liters) to U.S.quarts
Answer:
I need only 5 brainlisted please give meStep-by-step explanation:
please anyone please I request you allThe conversion is a. 12 mm ≈ 0.47 inches
b. 75 km ≈ 46.60 miles
c. 150 m ≈ 492.13 feet
d. 63 square meters ≈ 678.13 square feet
e. 45 meters per second ≈ 147.64 feet per second
f. 1.9 L ≈ 2.01 U.S. quarts
To convert the metric units into the given English units, we'll use the following conversion factors:
1 inch = 25.4 mm
1 mile = 1.60934 km
1 meter = 3.28084 feet
1 square meter = 10.7639 square feet
1 meter per second = 3.28084 feet per second
1 liter = 1.05669 U.S. quarts
a. 12 mm to inches:
12 mm * (1 inch / 25.4 mm) ≈ 0.47 inches
b. 75 km to miles:
75 km * (1 mile / 1.60934 km) ≈ 46.60 miles
c. 150 m to feet:
150 m * (3.28084 feet / 1 meter) ≈ 492.13 feet
d. 63 square meters to square feet:
63 square meters * (10.7639 square feet / 1 square meter) ≈ 678.13 square feet
e. 45 meters per second to feet per second:
45 meters per second * (3.28084 feet per second / 1 meter per second) ≈ 147.64 feet per second
f. 1.9 L (liters) to U.S. quarts:
1.9 L * (1.05669 U.S. quarts / 1 liter) ≈ 2.01 U.S. quarts
So, after rounding to two decimal places:
a. 12 mm ≈ 0.47 inches
b. 75 km ≈ 46.60 miles
c. 150 m ≈ 492.13 feet
d. 63 square meters ≈ 678.13 square feet
e. 45 meters per second ≈ 147.64 feet per second
f. 1.9 L ≈ 2.01 U.S. quarts
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you order items from a menu that total $10.75. your bill comes to $11.66, including tax. what is the percent of increase (tax)
i would love if someone can help me please it is due on the 19th
Answer:
-o.91
Step-by-step explanation:
first u - 10.75 by 11.66 and then u get the answer
A circle has a radius of 4 ft.
What is the area of the sector formed by a central angle measuring 270°?
Use 3.14 for pi and round the decimal to the nearest tenth.
The area of the sector is 37.68ft²
What is the area of a sector?The region inside the portion of the circle formed by two radii and an arc is known as the area of a sector. It just covers a small portion of the circle's total area.
Area of a sector
The area of a sector can be gotten using the expression (θ/360º) × π r ² where
θ is the angle subtended at the center, given in degrees.r is the radius of the circle.∅ = 270°r = 4ftUsing the expression we will get,(270/360) x 3.14 x 4²
From the solution, we will find the area to be 37.68ft²
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Jack is running back on his football team. The first play he gained 12 yards, second play loss 15 yards, third play gained 25 yards, and fourth play loss 2 yards. What was his total gains or losses?
Answer:
20
Step-by-step explanation:
The total gains of Jack if, In the first play, he gained 12 yards, in the second play lost 15 yards, in the third play gained 25 yards, and in the fourth play lost 2 yards is 20 yards.
What is Subtraction?The action of subtracting a matrix, vector, or other quantity from another according to predetermined rules in order to find the difference.
In math, addition is the process of adding two or more integers together. Addends are the numbers that are added, while the total refers to the outcome of the operation.
Given:
In the first play, he gained 12 yards, in the second play lost 15 yards, in the third play gained 25 yards, and in the fourth play lost 2 yards.
Assume the gains can be denoted by positive and loss by negative,
Gains = 12 yards, 25 yards.
Total gain = 12 + 25 = 37 yards
Loss = -15 yards, -2 yards
Total loss = -15 + (-2) = -17 yards
Calculate the total gain as shown below,
Total gain = total gain + total loss
Total gain = 37 + (-17)
Total gain = 20 yards.
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A local congressman must decide whether or not to vote for a bill to reduce the speed limit.
Supporters of the bill claim that the gas mileage improves at lower speeds! The congressman was given the data about the Toyota Camry gas usage - presented in the table below. (Picture Attached.)
Note: MPG stands for miles per gallon of gas.
IDENTIFY THE INDEPENDENT VARIABLE FIR THIS DATA AND WHY.
The independent variable in this data is the speed of the car. This is because the congressman is trying to determine whether or not the gas mileage improves at lower speeds.
How to explain the variablesThe dependent variable is the gas mileage, because it is the variable that is being measured and that is affected by the independent variable.
The other variables in this data are the weight of the car, the type of engine, and the year of the car. However, these variables are not being changed in this experiment, so they are not considered to be independent variables.
The data shows that the gas mileage of the Toyota Camry improves as the speed of the car decreases. This supports the claim of the supporters of the bill to reduce the speed limit.
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if you take away 25 from a number you will be left with two and halftimes 30. what is the number?
For Mean = 73.19, Mode = 79.56 and Variance = 16, the Karl Pearson's Coefficient of Skewness will be -0.0256 -1.64 0.0256 0
Answer:
To calculate Karl Pearson's coefficient of skewness, we need to use the formula:
Skewness = 3 * (Mean - Mode) / Standard Deviation
Given the Mean = 73.19, Mode = 79.56, and Variance = 16, we need to find the Standard Deviation first.
Standard Deviation = √Variance = √16 = 4
Now we can substitute the values into the formula:
Skewness = 3 * (73.19 - 79.56) / 4
Skewness = -6.37 / 4
Skewness = -1.5925
Rounded to four decimal places, the Karl Pearson's coefficient of skewness for the given values is approximately -1.5925.
In order to predict future housing needs the population of two towns, Appletown and Callwood, have been monitored and plotted on a graph for the past four years. The results are shown on the graph above. If both towns continue to grow at their current rates, which town will have the largest population at year 10 of the study? A
If both towns, Appletown and Callwood, continue to grow at their current rates, Callwood will have the larger population at year 10 because it is increasing exponentially.
What is exponential growth?Exponential growth occurs when the pattern of increase is higher with the passage of time.
The formula for the exponential increase is as follows:
f(x)=a(1+r)^{x}
Where:
f(x) = exponential growth function
a = initial number or amount
r = growth rate
{x} = number of time intervals
Thus, if both towns, Appletown and Callwood, continue to grow at their current rates, Callwood will have the larger population at year 10 because it is increasing exponentially.
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9. The annual interest rate is 21%. The balance after the grace period was $700. No
payments were received. What is the interest for the month?
Answer:
Interest for the month = $12.25
Step-by-step explanation:
Given:
Amount in bank = $700
Rate of interest per month = 21% / 12 = 0.0175
Find:
Interest for the month
Computation:
Interest for the month = Amount in bank × Rate of interest per month
Interest for the month = $700 × 0.0175
Interest for the month = $12.25
Help help help help
Answer:
5.83095189
Step-by-step explanation:
Answer: =4
Step-by-step explanation:
we are going to but (5 squared -3squared ) =4
hope this helps
A box can be filled completely using 9 layers of 11 units cubes. What is the volume of the box?
The volume of the box is 99 unit cubes.
What is the volume of the box?A cube is a three-dimensional object that has six faces, twelve edges and eight vertices. The length, width and height of a cube usually has equal dimensions. The volume of the box is a function of the dimension of the cubes in it and the number of layers.
Volume of a box = number of layers x amount of units
9 x 11 - 99 unit cubes
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The graph shows the favorite activities of campers at a summer camp. Suppose there are 300 campers at the camp. How many campers favor fishing?
Answer:
42
Step-by-step explanation:
300 is a multiple of 100. On the graph we can see that 14% of the students favor fishing. 14% of 100 is just 14. Once we have that, we can just multiply by 3, since 3 × 100 = 300:
3 × 14 = 42.
The number of campers supporting fishing will be 42
What is the percentage?The Percentage is defined as representing any number with respect to 100. It is denoted by the sign %. The percentage stands for "out of 100." Imagine any measurement or object being divided into 100 equal bits.
Given that the graph shows the favorite activities of campers at a summer camp. Suppose there are 300 campers at the camp. 14% of campers are supporting fishing.
The number of campers supporting fishing will be:-
Number = 300 x 14%
Number = ( 300 x 14 ) / 100
Number = 3 x 14
Number = 42
Therefore, the number of campers supporting fishing will be 42.
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Translate the sentence into an inequality.
Four times the sum of a number and 20 is at least 16
Solve the system.
2x + y + 3z = 20
X + 2y - z = -11
3x - 2z = -3
Enter your answer as an ordered triple.
The solution to the system, as an ordered triple is: (3, -4, 6).
How to Solve a System of Equations?To solve the following given system of equations:
2x + y + 3z = 20 --> eqn. 1
x + 2y - z = -11 --> eqn. 2
3x - 2z = -3 --> eqn. 3
Multiply equation 1 by 2 to get eqn. 4:
4x + 2y + 6z = 40 --> eqn. 4
Subtract eqn. 4 from eqn. 2:
x + 2y - z = -11 --> eqn. 2
4x + 2y + 6z = 40 --> eqn. 4
-3x - 7z = -51 --> eqn. 5
Add equations 3 and 5 together:
3x - 2z = -3 --> eqn. 3
-3x - 7z = -51 --> eqn. 5
-9z = -54
z = -54/-9
z = 6
Substitute the value of z into equation 5:
-3x - 7(6) = -51 --> eqn. 5
-3x - 42 = -51
-3x = -51 + 42
-3x = -9
-3x/-3 = -9/-3
x = 3
Find the value of y by substituting the values of x and z into equation 1:
2(3) + y + 3(6) = 20 --> eqn. 1
6 + y + 18 = 20
24 + y = 20
y = 20 - 24
y = -4
The solution as an ordered triple is: (3, -4, 6).
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Urgent help!
QUESTION 1
A fruit basket has both mangoes and oranges and can accommodate only 80 mangoes and oranges when
full. If there are x mangoes in a full basket,
(i) Write an expression for the number of oranges in it.
(ii) If an orange costs 50 cents and a mango costs 40 cents, write an expression for the amount of
money collected (in dollars) for the sale of all the mangoes and oranges in the full basket, S ( x ) .
(iii) Find the total amount collected from selling all the fruits in the full basket if there are 35 mangoes
in it.
Answer:
(i) \(80-x\)
(ii) \(S(x) = 40 - 0.10x\)
(iii) $36.5
Step-by-step explanation:
Given that:
1. Total Number of fruits = 80
2. Number of mangoes = x
3. Both mangoes and oranges are there in the basket.
Solution (i):
Only mangoes and oranges are there in the basket and the basket is full.
so, Number of mangoes + Number of oranges = Total number of fruits
x + Number of oranges = 80
Number of oranges = \(80 -x\)
Solution (ii):
Given:
Cost of an orange = 50 cents = $0.50
Cost of a mango = 40 cents = $0.40
Cost for x mangoes = \(\$ 0.40x\)
Cost for (\(80-x\)) oranges = \(\$ 0.50 \times (80-x)\)
\(\Rightarrow S(x) = 0.50 (80-x) + 0.40x\\\Rightarrow S(x) = 40 -0.50x + 0.40x\\\Rightarrow S(x) = 40 - 0.10x\)
Solution (iii):
Put value of x = 35 in S(x)
\(S(35) = 40 - 0.10 (35)\\\Rightarrow S(35) = 40 - 0.35\\\Rightarrow S(35) =\$ 36.5\)
Hence, answers are:
(i) \(80-x\)
(ii) \(S(x) = 40 - 0.10x\)
(iii) $36.5
You and your family go camping.
Your campsite is square. The area
of your campsite is 900 square
feet. What is the perimeter of the
campsite?
Answer:
The campsite would be 65 m by 65 m. 65 x 65 = 4,225. Another way to put it (and the way to figure it out) is that the square root of 4,225 is 65.
Step-by-step explanation:
Expand and simplify x(3x + 5)-5(2x - 1)
PLEASE HELP ME AND ANSWER THIS QUESTION !! I need this for my assessment revision
The simplified expression of x(3x + 5)-5(2x - 1) is 3x² - 5x + 5
How to expand and simplify the expressionFrom the question, we have the following parameters that can be used in our computation:
x(3x + 5)-5(2x - 1)
Open the brackets
So, we have
3x² + 5x - 10x + 5
Evaluate the like terms
So, we have
3x² - 5x + 5
Hence, the simplified expression is 3x² - 5x + 5
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