Answer:
32%
Step-by-step explanation:
since percent = 100
68% is the number of part-time, making the rest full-time workers
100 - 68 = 32
thus 32%
За/2b ÷ 2b/За
i am confused pls help
Answer:
(9a²)/(4b²)
Step-by-step explanation:
to make it easier, just flip the second fraction and multiply.
so then we have (3a/2b) X (3a/2b)
= (9a²)/(4b²)
Prove by induction: prove that for n ∈ X^+ ,1 ·2 + 2 ·3 + ··· + n(n + 1) = n(n + 1) (n + 3)/3
Using the mathematical induction it can be proved that that for n ∈ X+ ,1 · 2 + 2 · 3 + ··· + n(n + 1) = n(n + 1) (n + 3)/3.
Mathematical induction is a method of proof. The base case is proven initially, then the inductive step is demonstrated.
Proof by mathematical induction,
The goal is to show that P(n) is correct for all integers n, where P(n) is a statement that depends on n.
The proof by mathematical induction has two stages:
Stage 1: Base Case: the basis for mathematical induction is the initial step. When the statement is accurate for the first value of n, this is proven.
Stage 2: Inductive step: the next step is to show that if the statement is valid for any given value of n, it must also be accurate for the next value of n.
Now, proof for the given series of questions,
1. Base case :
n=1, P(1) = 1·2 = 2
LHS = 1·2 = 2
RHS = 1(1+1)(1+3)/3 = 2
So, LHS = RHS
2. Inductive Hypothesis : Let's assume that the given equation is true for some natural number k.
1 · 2 + 2 · 3 + ··· + k(k + 1) = k(k + 1) (k + 3)/33.
Inductive Step, we need to show that the given equation is valid for k+1.
LHS = 1 · 2 + 2 · 3 + ··· + k(k + 1) + (k + 1)(k + 2)
RHS = k(k + 1) (k + 3)/3 + (k + 1)(k + 2)
LHS = RHS
1 · 2 + 2 · 3 + ··· + k(k + 1) + (k + 1)(k + 2)
= k(k + 1) (k + 3)/3 + (k + 1)(k + 2)1 · 2 + 2 · 3 + ··· + k(k + 1) + (k + 1)(k + 2)
= (k + 1)[k(k + 3)/3 + (k + 2)]1 · 2 + 2 · 3 + ··· + k(k + 1) + (k + 1)(k + 2)
= (k + 1)(k + 3)(k + 2)/3
Therefore, we can conclude that for n ∈ X+ ,1 · 2 + 2 · 3 + ··· + n(n + 1) = n(n + 1) (n + 3)/3.
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1. Find the slope of the line.
−3x−4y=6
2. Find the slope of the line that is (a) perpendicular to the line that goes through points (6, -1) and (-4, -10).
The slope of the line in 1. is -3/4 and the slope of 2. is 9/10.
What is slope?Understanding what slope is is among the most crucial things to know about lines. The line's slope, also referred to as rise over run, is how "steep" it is. By dividing the difference between the y-values at two points by the difference between the x-values, we can determine slope. Understanding how to interpret graphs and create equations is necessary in order to comprehend the significance of the definition of slope.
The slope of the line = m in y = mx + b
−3x−4y=6
4y = -3x -6
y = (-3x -6)/4
y = -3x/4 -6/4
y = -3/4(x) -3/2
2. Slope formula = y₂ - y₁ = m(x₂ -x₁)
points (6, -1) and (-4, -10)
Substitute
-10 -(-1)= m(-4 -6)
m = 9/10
Thus, the slope of the line in 1. is -3/4 and the slope of 2. is 9/10.
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at that temperature, give a linear approximation for the change in the predicted probability per degree increase in temperature
The linear approximation for the change in the predicted probability per degree increase in temperature is approximately 0.003.
Linear approximation is an estimation method that approximates a function by a linear function. Linear approximation is also known as the tangent line approximation method.
This method is useful for finding out the approximate value of the function at a point near the given point. The linear approximation of the change in predicted probability per degree increase in temperature can be found using the formula given below: Linear Approximation Formula: Linear approximation formula is given by the following equation: f(x) ≈ f(a) + f′(a)(x − a)Where f(x) is the function, f(a) is the value of the function at the point x=a, f′(a) is the first derivative of the function at x=a, and x is the point near the point a that we want to find the approximation.
Let us apply the linear approximation formula to find the linear approximation for the change in the predicted probability per degree increase in temperature.
Let f(t) be the function that gives the predicted probability of a particular event at a temperature t. Suppose that at a temperature of 100 °F, the predicted probability is 0.8. Let f′(t) be the first derivative of the function f(t).
We need to find the linear approximation of the change in predicted probability per degree increase in temperature when the temperature is 100 °F. We can use the following steps to find the linear approximation.
Step 1: Find the value of f(100)f(100) = 0.8This means that when the temperature is 100 °F, the predicted probability is 0.8.
Step 2: Find the value of f′(100)f′(100) = df/dt = 0.003 This means that the rate of change of predicted probability with respect to temperature at 100 °F is 0.003 per degree.
Step 3: Use the linear approximation formula to find the linear approximation of the change in predicted probability per degree increase in temperature. The linear approximation formula is given by: f(x) ≈ f(a) + f′(a)(x − a)Substitute a=100, f(100)=0.8, f′(100)=0.003, and x=101 into the formula. f(101) ≈ f(100) + f′(100)(101 − 100)f(101) ≈ 0.8 + 0.003(1)f(101) ≈ 0.803
This means that the predicted probability of the particular event when the temperature is 101 °F is approximately 0.803.
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In math class, Sam correctly multiplied 3. 625×10-8 by 500, then reported his product in scientific notation. What was the exponent in Sam’s product? A -16 B -10 C -7 D -5
The exponent in Sam’s product is -5.
What does a math exponent mean?
When a number is multiplied by itself, it is said to have an exponent. For instance, 2 to the third (written as 23) indicates that 2 x 2 x 2 = 8. 23 and 2 x 3 = 6 are not equivalent. A number raised to the power of one is itself, so keep that in mind.Let us first multiply 500 with 3. 625×10-8
3. 625×10-8 × 500 = 1812.5 × 10⁻⁸
Then Sam has reported this answer in scientific notation
The format for writing a number in scientific notation is
(first digit of the number) followed by (the decimal point) and then (all the rest of the digits of the number), times (10 to an appropriate power).
In 1812.5 × 10⁻⁸ we move the decimal 3 times to left side
Since the decimal is moved left side, we multiply by 10³
1812.5 × 10⁻⁸ = 1812.5 × 10⁻⁸ × 10³
1812.5 × 10⁻⁸ = 1812.5 × 10⁻⁵
Exponent is a quantity representing the power to which a given number or expression is to be raised
1812.5 × 10⁻⁵ exponent is -5
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what is the image of the point (-5,-4) after the rotation of 180 degrees counter clockwise?
Please help me ASAP!!!
Answer:
(5, 4 )
Step-by-step explanation:
under a counter- clockwise about the origin of 180°
a point (x, y ) → (- x, - y ) , then
(- 5, - 4 ) → (- (- 5), - (- 4) ) → (5, 4 )
The equation the quantity 2x minus 20 divided by 3 = 2x models temperature change, where x represents the difference in degrees in the last 24 hours. Solve for x. x = −5 x = −2 x = 2 x = 13
WILL MARK BRAINLIEST
The solution to the equation is x = -5
How to determine the value of x?The equation is given as:
the quantity 2x minus 20 divided by 3 = 2x
Rewrite properly as
(2x - 20)/3 = 2x
Multiply through by 3
2x - 20 = 6x
Collect like terms
6x - 2x = -20
This gives
4x = -20
Divide by 4
x = -5
Hence, the solution to the equation is x = -5
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Answer:
other dude is correct cuh
Step-by-step explanation:
A custotuer requires during the next four months respectively 50,65,100, and 70 units of a commodity (no backlogs wllowed). Productions costs are $5,$8,$4, and $7 per unit during these months. The storage cost from one month to the next are $2 per unit (assessed on the end of the month inventory). Each unit at the end of the month 4 could be sold for $15 /unit. The production capacities for each month are 90, 75, 80 , and 50 units respectively. Currently, there are 15 units in inventory. Formulate a Linear Program that will minimize the objective function (sum of the production and inventory costs - revenue from selling end of period inventory at month 4). Note, inventory cost is assessed only for the first 3 periods. Model and solve the problem in AMPL and answer the quiz.
The formulated Linear Program aims to minimize the objective function, which is the sum of production and inventory costs minus the revenue from selling the end-of-period inventory at month 4.
In this problem, we need to determine the optimal production and inventory levels over the four-month period to minimize costs and maximize revenue. We can formulate this as a linear programming problem with the following decision variables:
Let x1, x2, x3, x4 represent the production quantities for months 1, 2, 3, and 4, respectively.
Let y1, y2, y3, y4 represent the end-of-month inventory levels for months 1, 2, 3, and 4, respectively.
The objective function we want to minimize is:
Minimize: (5x1 + 8x2 + 4x3 + 7x4) + (2y1 + 2y2 + 2y3) - (15y4)
Subject to the following constraints:
1. Initial inventory: y1 = 15 (given)
2. Production capacity constraints:
x1 <= 90 (month 1 capacity)
x2 <= 75 (month 2 capacity)
x3 <= 80 (month 3 capacity)
x4 <= 50 (month 4 capacity)
3. Inventory balance equations:
y1 + x1 - 50 = y2 (month 1)
y2 + x2 - 65 = y3 (month 2)
y3 + x3 - 100 = y4 (month 3)
y4 + x4 - 70 = 0 (month 4, no carryover inventory)
4. Non-negativity constraints:
x1, x2, x3, x4, y1, y2, y3, y4 ≥ 0
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A ramp was constructed to load a truck. If the ramp is 8 feet long and the horizontal distance from the bottom of the ramp to the truck is 3 feet, what is the vertical height of the ramp?
Answer:
x=\(\sqrt{55}\) or about 7.4
Step-by-step explanation:
Use the Pythagorean Theorem:
8^2=3^2+x^2
64=9+x^2
55=x^2
x=\(\sqrt{55}\) or about 7.4
Answer:
7.42 feet
Step-by-step explanation:
.
a box in the shape of a rectangular prism has a length of 3 5/8 inches, a width of 2 1/2 inches, and a height of 4 inches what is the volume of the box
Answer:
24 in^3
Step-by-step explanation:
This should be the correct answer, if it's not I'm sorry!
when the angle of an incline with a block resting on it increases the normal support force? A) decreases B) increases C) stays the same
Answer:
normal force decreases
Step-by-step explanation:
N=mgcosθ, and cosine decreases as theta increases
consider joining our disc*rd server for unlimited hw help! we also have an active giveaway rn. code: RPEdT3erFm <3
Answer:
A) decreases
Step-by-step explanation:
As the angle of the incline increases, the normal force decreases, which decreases the frictional force. The incline can be raised until the object just begins to slide.
What was the median number of posts made?
Answer: The median number of posts made is 8.5
At a bookstore the total cost of 6 books is 45.00 each book costs the same amount
Answer:
7.5
Step-by-step explanation:
45 / 6 = 7.5
Answer:
7.5
Step-by-step explanation:
45 / 6 = 7.5
On a slow weekend, you spend at least two hours on homework. on a busy weekend, you spend as much as five hours on homework. write an absolute value inequality that represents the number of hours you spend doing homework on a typical weekday.
Absolute value inequality that represents the number of hours you spend doing homework on a typical weekday is 2 ≤ x ≤ 5.
Let us assume that one spends x hours doing homework on a typical weekday. Then we can write
The inequality expression for a slow weekend is given as;
X ≥ 2
In the same vein, the inequality expression for a busy weekend is given as;
X ≤ 5
Putting the two inequalities we have together in the same expression;
2 ≤ x ≤ 5
Two inequality expression could be written simultaneously if they can be expressed individually. They are commonly referred to as a “double” inequality. Writing an absolute value for this expression is represented as:
|x - h|≤ k
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What is the range of the function graphed below?
(-infinity,4]
[-4.0) v [2.infinity)
(-4,infinity)
(-4,0] v (2,infinity)
Answer:
It's B
Step-by-step explanation:
B
Answer:
B-----
Step-by-step explanation:
Solve x2 + 12x = –11 by completing the square. Which is the solution set of the equation?
Answer:
you add the 11 back to the other side making it x^2+12x+11=0
then you factor it
(x+11)(x+1)
you should know what to do from here
Answer:
Step-by-step explanation:
x2 + 12x = –11
x2 + 12x +36 = –11 + 36
(x+6)^2 = -11 + 36 = 25 = (+/- 5)^2
x+6 = +/- 5
x+6 = +5 => x=-1
x+6 = -5 => x = -11
So the solution set is S = {-1, -11}
Please answer all of these questions for me, it would mean the world to me!
Answer:
2+2=4
Step-by-step explanation: btw what questions?
Answer:
Wait, wheres the questions?
Step-by-step explanation:
Please help me will give Brain
Answer:
x = 90°
Step-by-step explanation:
Since AB is the diameter of the circle then
x = 90° ( angle in a semicircle )
please help!! Order the following numbers from least to greatest:
The numbers are ordered from least to greatest as follows
√3 - 1
√14
3√2
√19 + 1.6
2√10 + 5
What is ordering from least to greatest?This is arranging values form the one that has the smallest values being the number one while the number that has the biggest value is the last
How to other the given numbers form least to greatestIn ordering the given numbers we convert them to decimal using calculator
3√2 =4.242640687
√3 - 1=0.7320508076
√19 + 1.6 = 5.958898944
2√10 + 5 = 11.32455532
√14 =3.741657387
The number can be arranged as thus
√3 - 1
√14
3√2
√19 + 1.6
2√10 + 5
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(d)
x + 12=36-24
)
4X=12 (6)
4x-12-180
la)
2x+ 17=180 (c)
****how do I solve this??****
Answer: The 4 answers are x=18, x=3, x=48, x=81 1/2.
Step-by-step explanation: Isolate the variable by dividing by each side by factors that don't contain the variable.
6 is what precent of 8
Answer:
75%
Step-by-step explanation:
We would have to divide 6 by 8 and then multiply the quotient by 100 to get the percentage.
\(\frac{6}{8}=0.75 * 100 = 75\%\)
6 is 75% of 8.
Hope this helps!
HELP ASAP
Complete the proofs for theorem 7.
Theorem 7: Supplements of congruent angles are congruent.
Answer:
bcd= congruent property abstracted by -cdb
Step-by-step explanation:
fffffffffffffffffffffffffffffffffffffffffff
8^9•8^7
rewrite the following expression using each base only once
Answer:
\( 8^{16} \)
Step-by-step explanation:
\( 8^9 \cdot 8^7 \)
Use the rule
\( a^m \times a^n = a^{m + n} \)
\( 8^9 \times 8^7 = 8^{9 + 7} = 8^{16} \)
let ⊂ , ⊂ be any two disjoint events such that: P() = 0.4, P( ∪ ) = 0.7. Find: ) P( c). ii) P( c ), iii)probability that exactly one of the events A,B occurs
The proababilities are: i) P(Aᶜ) = 0.6, ii) P(Bᶜ) = 0.4
iii) Probability that exactly one of the events A, B occurs = 0.7
Let A and B be any two disjoint events such that P(A) = 0.4 and P(A ∪ B) = 0.7. We need to find the following probabilities:
i) P(Aᶜ): This is the probability of the complement of event A, which represents the probability of not A occurring. Since A and B are disjoint, Aᶜ and B are mutually exclusive and their union covers the entire sample space.
Therefore, P(Aᶜ) = P(B) = 1 - P(A) = 1 - 0.4 = 0.6.
ii) P(Bᶜ): This is the probability of the complement of event B, which represents the probability of not B occurring. Since A and B are disjoint, Bᶜ and A are mutually exclusive and their union covers the entire sample space.
Therefore, P(Bᶜ) = P(A) = 0.4.
iii) Probability that exactly one of the events A, B occurs: This can be calculated by subtracting the probability of both events occurring (P(A ∩ B)) from the probability of their union (P(A ∪ B)).
Since A and B are disjoint, P(A ∩ B) = 0.
Therefore, the probability that exactly one of the events A, B occurs is P(A ∪ B) - P(A ∩ B) = P(A ∪ B) = 0.7.
To summarize:
i) P(Aᶜ) = 0.6
ii) P(Bᶜ) = 0.4
iii) Probability that exactly one of the events A, B occurs = 0.7
Note: The provided values of P(A), P(A ∪ B), and the disjoint nature of A and B are used to derive the above probabilities.
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assign biggest decrease to the biggest decrease in waiting time between two consecutive eruptions. for example, the third eruption occurred after 74 minutes and the fourth after 62 minutes, so the decrease in waiting time was 74 - 62
The biggest decrease in waiting time between two consecutive eruptions is stored in the variable "biggest_decrease."
To find the biggest decrease in waiting time between two consecutive eruptions, we can create an array of waiting times for each eruption and calculate the differences between consecutive elements. Then, we can find the maximum value from those differences. Here's the code to accomplish this:
eruptions = [74, 62, ...]
differences = [eruptions[i] - eruptions[i-1] for i in range(1, len(eruptions))]
biggest_decrease = abs(max(differences))
Make sure to replace the ellipsis (...) with the remaining waiting times for each eruption in the "eruptions" array. The variable "biggest_decrease" will store the absolute value of the biggest decrease in waiting time between two consecutive eruptions.
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Complete Question:
Assign biggest_decrease to the biggest decrease in waiting time between two consecutive eruptions. For example, the third eruption occurred after 74 minutes and the fourth after 62 minutes, so the decrease in waiting time was 74 - 62 = 12 minutes.
Hint 1: You'll need an array arithmetic function mentioned in the textbook. You have also seen this function earlier in the homework!
Hint 2: We want to return the absolute value of the biggest decrease.
biggest_decrease =
Multiply. √3 ⋅ √5 ⋅ √7 Enter your answer, in radical form, in the box.
Answer: square 105
Step-by-step explanation: Confirming answer
A radical expression is an expression containing a square root, mostly a square root.
The value of √3.√5.√7 in radical form is √105.
What is a radical expression?A radical expression is an expression containing a square root, mostly a square root.
We have,
√3.√5.√7
We can multiply the numbers together.
= √(3 x 5 x 7 )
= √(15 x 7)
= √105
Thus the value of √3.√5.√7 in radical form is √105.
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Match each pair of points A and B to point C such that ∠ABC = 90°. A(3, 3) and B(12, 6) C(6, 52) A(-10, 5) and B(12, 16) C(16, -6) A(-8, 3) and B(12, 8) C(18, 4) A(12, -14) and B(-16, 21) C(-11, 25) A(-12, -19) and B(20, 45) A(30, 20) and B(-20, -15) arrowBoth
Answer:
The pair of points A and B to point C such that ∠ABC = 90° are;
1) A(-10, 5) and B(12, 16), C(18, 4)
2) A(12, -14) and B(-16, 21), C(-11, 25)
Step-by-step explanation:
The angle formed between the points A and B to point C, ∠ABC is 90° when the the line passing through points A and B is perpendicular to the line passing through points B and C
Therefore, for ∠ABC = 90°
\(\overline{AB}\) is perpendicular to \(\overline{BC}\) (
\(Slope, \, m =\dfrac{y_{2}-y_{1}}{x_{2}-x_{1}}\)
The slope of \(\overline{BC}\) = -1/m, where, the slope of \(\overline{AB}\) = m
Each option is analyzed as follows;
1) A(3, 3) and B(12, 6) C(6, 52)
The slope of \(\overline{AB}\) = (6 - 3)/(12 - 3) = 0.\(\overline 3\)
The slope of \(\overline{BC}\) = (52 - 6)/(6 - 12) = -7.\(\overline 6\) ≠ 1/(0.\(\overline 3\)) = 3
∴ \(\overline{AB}\) is not perpendicular to \(\overline{BC}\) and ∠ABC ≠ 90°
2) A(-10, 5) and B(12, 16) C(16, -6)
The slope of \(\overline{AB}\) = (16 - 5)/(12 - (-10)) = 0.5
The slope of \(\overline{BC}\) = (-6 - 16)/(16 - 12) = -5.5 ≠ 1/(0.5) = 2
For point C(18, 4), we have;
The slope of \(\overline{BC}\) = (4 - 16)/(18 - 12) = -2
∴ A(-10, 5) and B(12, 16) is perpendicular to C(18, 4)
∴ ∠ABC = 90°
3) A(-8, 3) and B(12, 8) C(18, 4)
The slope of \(\overline{AB}\) = (8 - 3)/(12 - (-8)) = 0.25
The slope of \(\overline{BC}\) = (4 - 8)/(18 - 12) = -0.\(\overline 6\) ≠ 1/(0.25) = 4
∴ \(\overline{AB}\) is not perpendicular to \(\overline{BC}\) and ∠ABC ≠ 90°
4) A(12, -14) and B(-16, 21) C(-11, 25)
The slope of \(\overline{AB}\) = (21 - (-14))/((-16) - 12) = -1.25
The slope of \(\overline{BC}\) = (25 - (21))/((-11) - (-16)) = 0.8 = 1/(-1.25)
∴ \(\overline{AB}\) is perpendicular to \(\overline{BC}\) and ∠ABC = 90°
5) A(-12, -19) and B(20, 45)
C(16, -6)
The slope of \(\overline{AB}\) = (45 - (-19))/(20 - (-12)) = 2
A(30, 20) and B(-20, -15)
The slope of \(\overline{AB}\) = (-15 - 30)/(-20 - 20) = 1.125
The slope of \(\overline{BC}\) = (6 - 52)/(12 - 6) = -5.5 ≠ 1/(0.5) = 2
6) The slope of \(\overline{BC}\) = (-6 - 16)/(16 - 12) = -5.5 ≠ 1/(0.5) = 2
∴ \(\overline{AB}\) is not perpendicular to \(\overline{BC}\) and ∠ABC ≠ 90°
How do you find the ratio of area of two circles?
The ratio of the area of two circles can be found by dividing the area of one circle by the area of the other.
The formula for the area of a circle is A = πr^2, where r is the radius of the circle. To calculate the ratio of the areas of two circles, take the area of one circle and divide it by the area of the other:
Ratio of area of two circles = A1/A2 = (πr1^2)/(πr2^2)
For example, if the radius of one circle is 3 and the radius of the other is 5, then the area of the first circle is 28.27 and the area of the second circle is 78.54. The ratio of the areas of these two circles is then 28.27/78.54, which is 0.36.
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I really need this done today please help PLEAASSSEEE
Answer:
A and C
Step-by-step explanation:
Answer:
If I am correct, the answer is A, C
Step-by-step explanation:
Peyton wanted to buy a new game. The game costs $65.00 before sales tax. If the sales tax is 8%, how much will she pay for the game?
Answer:
73
Step-by-step explanation: