Answer:
$30 per hour
Step-by-step explanation:
120/4=30
A trash bin has a capacity of 50 gallons. What percentage of its capacity is 30 gallons?
The trash bin has a capacity of 50 gallons and it currently contains 30 gallons, then it is 60% full.
The capacity of the trash bin is 50 gallons. We want to find out what percentage of this capacity is occupied by 30 gallons.
To calculate the percentage, we use the formula:
Percentage = (Amount / Capacity) * 100
In this case, the amount is 30 gallons and the capacity is 50 gallons.
Substituting these values into the formula, we have:
Percentage = (30 / 50) * 100
To simplify the calculation, we can perform the division first:
Percentage = 0.6 * 100
Multiplying 0.6 by 100 gives us:
Percentage = 60
Therefore, 30 gallons represents 60% of the trash bin's capacity.
In conclusion, if the trash bin has a capacity of 50 gallons and it currently contains 30 gallons, then it is 60% full.
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use the order of operations to simplify this expression Express answer in simplest form 1/4 + 1/2 ÷ 3/811 7/1228/9
first we have to made the division so:
\(\frac{\frac{1}{2}}{\frac{3}{8}}=\frac{8}{6}=\frac{4}{3}\)the the addition so:
\(\frac{1}{4}+\frac{4}{3}=\frac{3}{12}+\frac{16}{12}=\frac{19}{12}\)HELP ILL POINT LOT OF POINTS ✅✅✅
Question: 1-12
The United States participates in a number of international organizations. Which would be most likely to respond to a worldwide outbreak of a disease?
-International Chamber of Commerce
-O North Atlantic Treaty Organization
-International Labour Organization
o
-United Nations
11
Answer:
O North Atlantic Treaty Organization
Step-by-step explanation:
Julia is setting conditions for availability of two different objects in a certain area of a video game she is making. In her code, the areas center is represented by (0, 0). An objects location is expressed using (x, y) coordinates, where x represents the horizontal location with respect to the center, and y represents the vertical location with respect to the center. She decides to try the following conditions: Object 1 will be available only if y+1 is greater than the object’s horizontal distance from center. Object 2 will be available only if 3-y is greater than the object’s horizontal distance from center. What inequalities represent these conditions? Object 1-y=_____ Object 2-y=_____
Julia's conditions are represented by inequalities: Object 1 has y+1 > |x|, Object 2 has 3 - y > |x|, indicating availability.
To represent the conditions set by Julia, we can write the following inequalities:
For Object 1:
Object 1 will be available only if y+1 is greater than the object's horizontal distance from the center. The horizontal distance from the center is represented by x.
So, the inequality for Object 1 is:
y + 1 > |x|
For Object 2:
Object 2 will be available only if 3-y is greater than the object's horizontal distance from the center. Again, the horizontal distance from the center is represented by x.
So, the inequality for Object 2 is:
3 - y > |x|
Therefore, the inequalities representing the conditions are:
Object 1: y + 1 > |x|
Object 2: 3 - y > |x|
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These box plots show the basketball scores for two teams.Bulldogs55708090105Wolverines355580 859630 35 40455055 60 6570 758085 90 95 100 105 110Basketball scoresWhich statement is the most appropriate comparison of the spreads?
These box plots show the basketball scores for two teams Bulldogs & Wolvernies.
Here we have to compare the spread of scores by Interquartile Range.
The interquartile range defines the difference between the third and the first quartile
It express as : Upper Quartile - Lower Quartile
For the Bulldogs :
Upper Quartile is 90
Lower Quartile is 70
So, Interquartile Range = Upper Quartile - Lower Quartile
Interquartile Range = 90 - 70
Interquartile Range = 20
For the Wolveniers :
Upper Quartile is 85
Lower Quartile is 55
So, Interquartile Range = Upper Quartile - Lower Quartile
Interquartile Range = 85 - 55
Interquartile Range = 30
as : 20 < 30
So, The Interquartile Range for bulldogs, 20 is less than the IQR for the Wolveniers, 30.
Answer : B) The Interquartile Range for bulldogs, 20 is less than the IQR for the Wolveniers, 30.
Using a local telephone book to select a simple random sample could introduce _____ bias.
Answer:
Undercoverage
Step-by-step explanation:
Using a local telephone book to select a simple random sample could introduce UNDERCOVERAGE bias.
I hope it helps! Have a great day!
The diameter of a circle is 8 cm. Find its area to the nearest whole number.
Answer:
≈ 50 cm²
Step-by-step explanation:
Use the equation \(A= \frac{1}{4} \pi d^{2}\) Where d is the diameter.
Answer:
The answer that you're looking for is approximately 50 (rounded), In terms of π, it is 16π.
Step-by-step explanation:
In order to find the area you need to use the formula: Area = \(\pi r^{2}\).
Since The Diameter is double the amount of the radius you need to make sure to divide the diameter by 2 and replace "r" in the equation with the equation given.
8/2 gives you 4. Now you have the equation Area of Circle = \(\pi 4^{2}\).
Following the rules of PEMDAS we do exponents since there is no parenthesis.
\(4^{2}\) is the same as 16. In terms of pi, you just put pi next to your result giving 16π.
However, if you want to find out normally you can multiply with either 3.14 or π.
Both cases will give you different decimals, but when rounded to the nearest whole number they all give you 50.
Area of Circle = \(\pi r^{2}\).
Area of Circle = \(\pi 4^{2}\)
Area of Circle = 16π
Area of Circle = 50 (rounded).
I hope this was helpful!
evaluate.
(−1 2/3)^2=
Answer:
Step-by-step explanation:
(-5/3)(-5/3)= 25/9= 2 7/9
WILL GIVE BRAINLIEST PLZZZZZZ HELP
Ms. Walker used a coordinate plane to plot her students' scores on a recent quiz. She let x represent the number of correct answers they had on their quiz and y represent the number of points earned. She then plotted the ordered pairs (17, 68), (20, 80), and (24, 96) to represent the data from three students. What is the slope of the graph in points per question? A.0.25 B.0.75 C.3.00 D.4.00
Answer:
m=4
Step-by-step explanation:
to find the slope m take two points : (17,68). (20,80)
m=y2-y1/x2-x1
m=80-68/20-17=12/3= 4
m=4
y=4x
simplify (7/2-1/3) * (-2)^2 + 1/2
79/6
Step-by-step explanation:
(7/2-1/3)((-2)²)+1/2
=19/6(-2)²+1/2
=19/6(4)+1/2
=38/3+1/2
=79/6
hope this helps you!
the length of the diagonal square is...
4 units
4√3 units
4√2 units
8 units
additionally, the area of the square is...
16 square units
16√2 square units
32 square units
does anyone know this???
The length of the diagonal of the square is \(4\sqrt{2}\) units. Additionally, the area of the square is \(16\) square units.
The mapping diagram shows a functional relationship.
Complete the statement.
f(3) is ___
Answer:
f(3) is - 1
Step-by-step explanation:
f(3) means the function value when x = 3
3 is in the domain, the function value is in the range.
Thus when x = - 3 → y = - 1
f(3) is - 1
The value of given mapping diagram for function f(3) is - 1
What is Mathematical function ?
Mathematical function is the representation of relation between independent variables and dependent variables.
Here is given mapping diagram f(3) means the function value x = 3
3 is in the domain which is independent of range as shown in diagram.
Thus when x = 3 the range is approaching towards y = - 1
therefore, f(3) equals - 1
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find what x =_______
Answer:
x=18
Step-by-step explanation:
ok, so you mulityply base and hieght then divide by 2
your base is 6 and your height is 6
6x6=36
36/2=18
your welcome
Please help me I got a bad grade and I need to redo them
Find the slope
Answer:
The first one has a slope of 4
The second one has a slope of 0.3 repeating
Step-by-step explanation:
You pick two points on the graph.
You find the x and y coordinates of each point.
You find the difference between the two x coordinates.
You find the difference between the two y coordinates.
Divide the difference in the y coordinates by the x coordinates.
If im wrong sorry owo im only in elementary school... <3
Answer:
4/6
Step-by-step explanation:
A math equation. :!!!!!
Answer:
1/7
Step-by-step explanation:
Find the value of the unknown in the figure below
b =(17,6x 8,9):19,7=7,95
A car traveled at an average speed of 60 mph for two hours. how far did it travel? responses 30 miles 30 miles 60 miles 60 miles 120 miles 120 miles 150 miles
Answer: 120 miles
Step-by-step explanation:
If a car goes 60 miles per hour then in two hours (60×2) it will go 120
evaluate f(3) if (x) = -4x+5
Answer:
-7
Step-by-step explanation:
30 POINTS FOR AN EXPLANATION TOO (DETAILED PLS)
The value of x based on the equation given as 3(4x + 6) = 9x + 12 is -2.
How to illustrate the equation?It should be noted that an equation shows that relationship between the variables that are given or illustrated in the data.
The value for x based on the equation will be:
3(4x + 6) = 9x + 12
Open bracket
12x + 18 = 9x + 12
Collect like terms
12x - 9x = 12 - 18
3x = -6
Divide
x = -6/3
x = -2
Therefore, x is -2.
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Estimate and solve 3,836 ÷ 63 = ________. (2 points)
60 r 9
58 r 56
60 r 56
58 r 9
Answer:
60 r 56
Step-by-step explanation:
You hear on the news that over the next 5 years the inflation rate will skyrocket to 12% if today a new blu-ray movie costs $19.99 assuming continuous compounding how much will the same disk cost in 5 years?
The Blu-ray movie will cost approximately $36.42 in 5 years with an inflation rate of 12% and continuous compounding.
To calculate the future cost of the Blu-ray movie in 5 years with an inflation rate of 12% and continuous compounding, we can use the formula for continuous compound interest:
A = P * e^(rt)
Where:
A = Future value
P = Present value
e = Euler's number (approximately 2.71828)
r = Annual interest rate (in decimal form)
t = Time period in years
In this case, the present value (P) is $19.99, the inflation rate (r) is 12% or 0.12, and the time period (t) is 5 years. Substituting these values into the formula, we get:
A = 19.99 * e^(0.12 * 5)
Calculating the exponent first:
0.12 * 5 = 0.6
Then:
e^0.6 ≈ 1.82212
Finally:
A = 19.99 * 1.82212 ≈ 36.42
Using the formula for continuous compound interest, we calculated that a Blu-ray movie that costs $19.99 today will cost approximately $36.42 in 5 years, assuming an inflation rate of 12% and continuous compounding.
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You have been assigned data from 15 concrete cylinders to which the compressive strength of concrete at 28 days as required by the specification of ASTM C39 (ASTM Standard Test Method C39: Compressive Strength of Concrete Cylinders), see Data Table P2 assigned to each student). With the data you must determine the following: Cylinde Cylinde Cylinde Cylinde Cylinde Cylinde Cylinde Cylinde Cylinde Cylinde Cylinde Cylinde Cylinde Cylinde Cylinde r2 r 3 r4 r5 r6 r7 r8 r9 r 10 r11 r 12 r 13 r 14 r 15 f'c [psi] f'c [psi] f'c [psi] f'c [psi] f'c [psi] f'c [psi] f'c [psi] f'c [psi] f'c [psi] f'c [psi] f'c [psi] f'c [psi] 3549 3877 3969 f'c [psi] f'c [psi] f'c [psi] 3422 3813 3645 3425 3841 3867 3762 3780 3735 3852 4084 3963 a) Average value E[X] b) Variance and standard deviation, V[X] and √(V[X]), respectively If we take the compressive strength of concrete to be a random variable X and fit well to A normal distribution determines the following: c) P (X≥ 3000 psi) d) P (X≥ 4000 psi) e) P (X≥ 5000 psi) f) P (3500 psi ≤ x ≤4500 psi)
A) E[X] ≈ 3758.13 psi
B) The standard deviation √(V[X]) is then:
√(V[X]) ≈ 539.26 psi
C) P(X≥ 3000 psi) ≈ 0.9525.
D) P(X≥ 4000 psi) ≈ 0.6443.
E) P(3500 psi ≤ X ≤ 4500 psi) ≈ 0.6546.
a) The average value E[X] can be calculated by taking the mean of the compressive strength data:
E[X] = (3549 + 3877 + 3969 + 3422 + 3813 + 3645 + 3425 + 3841 + 3867 + 3762 + 3780 + 3735 + 3852 + 4084 + 3963) / 15
E[X] ≈ 3758.13 psi
b) The variance V[X] can be calculated using the formula:
V[X] = ∑(x-E[X])^2 / n
where x is the compressive strength of each cylinder and n is the number of cylinders.
Plugging in the values, we get:
V[X] ≈ 290936.93 psi^2
The standard deviation √(V[X]) is then:
√(V[X]) ≈ 539.26 psi
c) We need to find the probability of X being greater than or equal to 3000 psi, which can be calculated using the z-score transformation and a standard normal distribution table:
z = (3000 - E[X]) / √(V[X])
z ≈ -1.67
Using a standard normal distribution table, we can find that P(Z ≥ -1.67) is approximately 0.9525.
Therefore, P(X≥ 3000 psi) ≈ 0.9525.
d) Using the same method as above, we find the z-score for 4000 psi:
z = (4000 - E[X]) / √(V[X])
z ≈ 0.37
Using a standard normal distribution table, we can find that P(Z ≥ 0.37) is approximately 0.6443.
Therefore, P(X≥ 4000 psi) ≈ 0.6443.
e) Using the same method as above, we find the z-score for 5000 psi:
z = (5000 - E[X]) / √(V[X])
z ≈ 2.72
Using a standard normal distribution table, we can find that P(Z ≥ 2.72) is approximately 0.0030.
Therefore, P(X≥ 5000 psi) ≈ 0.0030.
f) To find the probability of 3500 psi ≤ X ≤ 4500 psi, we first need to standardize the range using z-scores:
z1 = (3500 - E[X]) / √(V[X])
z1 ≈ -1.33
z2 = (4500 - E[X]) / √(V[X])
z2 ≈ 0.67
Using a standard normal distribution table, we can find that P(-1.33 ≤ Z ≤ 0.67) is approximately 0.6546.
Therefore, P(3500 psi ≤ X ≤ 4500 psi) ≈ 0.6546.
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Type the number in standard form
4.21 x 10^4
Answer:
0.00042
Step-by-step explanation:
Mia crosses a river when she drives from her house to the beach. The graph of the function d(t) = 40|t − 1.25| shows Mia’s distance from the river d, in miles, after t hours.
The domain of the function is 0 ≤ x ≤ 2.5. The graph shows her entire trip
Mia’s distance from the river is decreasing in the interval 0 < t < 2.5 and
Mia drives 100 miles to the beach.
How to determine the decreasing interval?The complete question is added at the end of this solution as an attachment
From the question, we have the following parameters that can be used in our computation:
The graph
On the graph, we can see that the values of the graph decrease from t = 0 to t = 2.5
When represented as an interval, we have
0 < t < 2.5
Hence, the decreasing interval is 0 < t < 2.5
How to determine the total distance travelledFrom the graph, we can see that the distance travelled in each half is 50 miles
So, the total distance is
total =50 + 50
Evaluate
total = 100
Hence, the total distance travelled is 100 miles
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Complete question
Mia crosses a river when she drives from her house to the beach. The graph of the function d(t) = 40|t − 1.25| shows Mia’s distance from the river d, in miles, after t hours.
The domain of the function is 0 ≤ x ≤ 2.5. The graph shows her entire trip
Complete each sentence to make a true statement.
Mia’s distance from the river is decreasing in the interval Choose... 0 < t < 1.25 or 1.25 < t < 2.5 .
Mia drives Choose... 40 or 80 or 60 or 100 miles to the beach.
A men's shoe size is related to his foot length and can be modeled by the equations s=1.7f -7.2, where s is shoe size and fis foot length, in inches. What is the shoe size of a man whose foot measures 9 inches?
Answer:
B. 8
Step-by-step explanation:
Given the equation, \( s = 1.7f - 7.2 \),
where,
s = shoe size,
f = foot length,
To determine the shoe size of a man that has a foot length (f) of 9 in, substitute f = 9 into the equation.
\( s = 1.7f - 7.2 \)
\( s = 1.7(9) - 7.2 \) (substitution)
\( s = 15.3 - 7.2 \)
\( s = 15.3 - 7.2 \)
\( s = 8.1 \)
His shoe size is approximately 8 inches
What is the power
property of exponents?
A bookstore sells 1 book for $14.75. Which table represents the relationship between number of books and the total price?
Answer:
The answer is A.
Step-by-step explanation:
The answer is A because if you divide the price by how many are sold it comes out to 14.75.
Answer: A
Step-by-step explanation:
1 book cost $14.75
2 books cost $29.50
3 books cost $44.25
4 books cost $59.00
5 books cost $73.75
6 books cost $88.50
7 books cost $103.25
Solve the system of equations using elimination. 2x 3y = −8 3x y = 2 (−4, 0) (2, −4) (5, −6) (8, −8)
Following the elimination process the solution of the given system of equations is \((2, -4)\). Hence option B is correct.
The given system of equations is:
2x + 3y = −8 ....(i)
3x + y = 2 ----(ii)
To solve this system by using the elimination method,
Multiply 3 both sides in equation (ii) we get,
9x + 3y = 6 ....(iii)
Subtract (iii) from (i) we get,
2x + 3y - (9x + 3y ) = -8 -6
-7x = -14
Dividing both sides by -7 we get,
x = 2
Put the value of x into equation (ii),
6 + y = 2
y = -4
Hence,
The solution of the system is \((2, -4)\) which is option B.
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The complete question is:
Solve the system of equations using elimination.
2x + 3y = −8
3x - y = 2
A. (−4, 0)
B. (2, −4)
C. (5, −6)
D. (8, −8)
Answer:
(2, −4)
Step-by-step explanation:
took the test xx
onsider the indefinite integral then the most appropriate substitution to simplify this integral is
Finally, we can integrate each term of this expression to obtain the solution to the original indefinite integral. The final solution is (1/2)x - (1/2)ln(x² + 1) + C, where C is the constant of integration.
To solve the indefinite integral of the given function, we need to make use of substitution. One of the most appropriate substitutions for this integral is u = x² + 1. By making this substitution, we can simplify the integral to the point where we can apply the power rule of integration. The derivative of u with respect to x is du/dx = 2x. Therefore, we can express dx in terms of du by multiplying both sides of this equation by dx/2. This gives us dx = du/2x. Substituting this into the original integral, we get ∫(x²)/(x²+1) dx = ∫(u-1)/(2u) du. We can simplify this expression to get ∫(1/2) - (1/2u) du. Overall, this substitution allows us to simplify the integral and arrive at a more manageable form. This demonstrates the power and utility of using substitution when dealing with complex integrals.
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(05.05 MC)
The area of a triangle is 24 square inches. What is the height of the triangle if the base length is 6 inches? (5
points)
Answer:
h = 8 inches
Step-by-step explanation:
the area (A) of a triangle is calculated as
A = \(\frac{1}{2}\) bh ( b is the base and h the height )
given A = 24 and b = 6 , then
\(\frac{1}{2}\) × 6 × h = 24 , that is
3h = 24 ( divide both sides by 3 )
h = 8 inches