Simplify the following surd expressions.
a) 5 square root of 5 - 2 square root of 5
b) 8 square root of 7 + 3 square root of 7
Answer:
A=3√5
B=11√7
Step-by-step explanation:
5√5-2√5
5-2√5
3√5
B) 8√7+3√7
8+3√7
11√7
Simplify: `\left(4g^{3}h^{4}\right)^{3}`
The expression \left(\(4g^{3}h^{4}\right)^{3}\)) can be simplified to \(64g^{9}h^{12}.\)
To simplify this expression, we raise each term inside the parentheses to the power of 3. For 4\(g^{3}\), we have \(4^{3}\) = 64 and \((g^{3})^{3}\)= \(g^{9}\), so we get \(64g^{9}\). Similarly, for \(h^{4}\), we have \((h^{4})^{3} = h^{12}\).
Combining these simplified terms, we have \(64g^{9}h^{12}\) as the final simplified form of the expression \left\((4g^{3}h^{4}\)\right)^{3}.
In summary, raising the expression\(4g^{3}h^{4}\) to the power of 3 simplifies to \(64g^{9}h^{12}\).
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Point A has coordinates A(2,1). What is the image after a dilation centered at the origin with a scale factor of 2?
Answer:
wouldn't this be 4,2?
Step-by-step explanation:
i remember doing this in school last year and dilation means you would multiple the coordinates by what ever the dilation factor was, in this case its 2.
chris has been given a list of bands and asked to place a vote. his vote must have the names of his favorite and second favorite bands from the list. how many different votes are possible?
There are nC2 different votes possible, where n is the number of bands on the list and nC2 represents the number of ways to choose 2 bands out of n.
To calculate nC2, we can use the formula for combinations, which is given by n! / (2! * (n-2)!), where ! represents factorial.
Let's say there are m bands on the list. The number of ways to choose 2 bands out of m can be calculated as m! / (2! * (m-2)!). Simplifying this expression further, we get m * (m-1) / 2.
Therefore, the number of different votes possible is m * (m-1) / 2.
In the given scenario, we don't have the specific number of bands on the list, so we cannot provide an exact number of different votes. However, you can calculate it by substituting the appropriate value of m into the formula m * (m-1) / 2.
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Find a Cartesian equation for the following curve and identify it: r=8.a. parabolab. ellipsec. hyperbolad. circlee. line
The given equation r = 8 represents a curve in polar coordinates, where r represents the distance from the origin and θ represents the angle.
To convert this polar equation into a Cartesian equation, we can use the following relationships:
x = r * cos(θ)
y = r * sin(θ)
Substituting r = 8 into these equations, we get:
x = 8 * cos(θ)
y = 8 * sin(θ)
Thus, the Cartesian equation for the given curve is:
x = 8 * cos(θ)
y = 8 * sin(θ)
This equation represents a circle with a radius of 8 units centered at the origin (0, 0).
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Mika has $1,500.00, but she needs $3,200.00. She found a savings account that will pay her 3.625% simple interest. How long, in years, will she have to leave her money in the account to reach her goal? Assume no additional deposits or withdrawals. Round your answer up to the next whole number
Mika has to leave her money in the account for 6 years to reach her goal.
Given that Mika has $1,500.00 and she needs $3,200.00.
She found a savings account that will pay her 3.625% simple interest.
We have to find out how long in years will she have to leave her money in the account to reach her goal.
We assume that there will be no additional deposits or withdrawals.
Mika needs $3,200.00.She has $1,500.00.
She has to find an additional amount = 3200 - 1500 = $1700
Given that simple interest is 3.625%.Let time be 't' in years.
Now,Simple Interest = (P × R × T) / 100
We get the value of 't' as t = 12 * SI / (P * R)where
P = Principal amount = $1500
R = Rate of interest = 3.625% = 3.625/100 = 0.03625
SI = Simple interest = $1700
Substitute the values of P, R, and SI in the above equation
we get the value oft = (12*1700) / (1500*3.625)t = 5.633 or 6 (Approx)
So, Mika has to leave her money in the account for 6 years to reach her goal.
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In the figure, m_2 = 75. Find the measures of the
remaining angles.
PA
Х
1/2
4/3
-m
5/6
8/7
-N
Answer:
Step-by-step explanation:
If angle 2 is 75, the other angles that are also 75 are angles 4 (it's vertical to angle 2), angle 6 (it's corresponding to angle 2), angle 8 (it's alternate exterior to angle 2). All the other angles measure 180 - 75 which is 105.
Describe the differences between a histogram and a bar graph.
A histogram is used for a continuous variable, while a bar graph is used for a categorical variable.
We have,
A histogram and a bar graph are both types of visual representations of data, but they have some key differences.
- A histogram is a graph that shows the distribution of a continuous variable.
The horizontal axis of a histogram represents the range of values for the variable, which is divided into intervals or bins.
The vertical axis represents the frequency or count of observations that fall into each bin.
The bars in a histogram touch each other to indicate that the variable is continuous and there are no gaps between the bins.
- A bar graph, on the other hand, is a graph that shows the frequency or count of different categories of a categorical variable.
The horizontal axis of a bar graph represents the categories of the variable, while the vertical axis represents the frequency or count of observations in each category.
The bars in a bar graph are separated by gaps to indicate that the variable is categorical and the categories are distinct.
Thus,
A histogram is used for a continuous variable, while a bar graph is used for a categorical variable.
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probability of 6 weights, 101 to 106, 3 weights each on each side of the scale. probability of 106 being on the heavier side.
The probability of having the weight 106 on the heavier side is: P(106 on heavier side) = 10/20 = 0.5 or 50%
To calculate the probability of having the weight 106 on the heavier side of the scale, we need to consider the total number of possible outcomes.
Since there are 6 weights (101 to 106) and 3 weights on each side of the scale, there are a total of 6 choose 3 ways to arrange the weights. This can be calculated using the combination formula:
6C3 = 6! / (3! * (6-3)!) = 20
Out of these 20 possible arrangements, we need to determine how many of them have the weight 106 on the heavier side.
If 106 is on the heavier side, then it can be paired with any of the other 5 weights on the same side. This leaves us with 5 choose 2 ways to arrange the remaining 2 weights on the same side:
5C2 = 5! / (2! * (5-2)!) = 10
Therefore, the probability of having the weight 106 on the heavier side is:
P(106 on heavier side) = 10/20 = 0.5 or 50%
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Simplify
(20n−36)−54(35n−20)
Answer:
-1870n + 1044
Step-by-step explanation:
How many triangles can be created with angle measures of 135 degree, 45 degrees, and 10 degrees?
A.One unique triangle.
B.no traingles
c. more than 1 unique traingle
d.cannot be determined
Answer:
The correct answer is A. One unique triangle. This is because the sum of the angles in a triangle must equal 180 degrees, so with the given angles, only one unique triangle can be created.
Answer: A!
Step-by-step explanation:
I did it on a Module Test and it was correct!
Johnny has 7 apples he gives 2 away calculate the mass and taste of the sun
Ava ate 5 wheat crackers, or 5% of the entire box. How many crackers were in the box? crackers were in the box.
Answer:
answer is 100
Step-by-step explanation:
5x2 = 10
10%= 10 crackers
10x 10= 100 crackers
100 crackers in the box
Answer:
100 crackers were in the box.
Explanation:
The percentage is a rate, number, or amount in each hundred.
Given:
Percentage = 5
Given crackers value = 5
let Total value is \(x\)
Here is formula
\(Percentage = \frac{given cracker value}{total number of crackers value} *100\)
\(5 = \dfrac{5}{x} *100\)
\(x = \dfrac{5}{5} *100\)
\(x= 100\)
Hence, the 100 cracker were there in the box.
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Can someone pls help me with this?
Answer: A
Step-by-step explanation: 3(1)+k =8 8-3=5
Answer:
A. 5
Step-by-step explanation:
Plug each x value into the equation 3x + k
Substitute each answer choice for k
Whenever they match the values under the equation, you have the answer.
3 (1) + 5 = 8
3 (3) + 5 = 14
3 (5) + 5 = 20
how to know if a function has a vertical asymptote
To determine if a function has a vertical asymptote, you need to consider its behavior as the input approaches certain values.
A vertical asymptote occurs when the function approaches positive or negative infinity as the input approaches a specific value. Here's how you can determine if a function has a vertical asymptote:
Check for restrictions in the domain: Look for values of the input variable where the function is undefined or has a division by zero. These can indicate potential vertical asymptotes.
Evaluate the limit as the input approaches the suspected values: Calculate the limit of the function as the input approaches the suspected values from both sides (approaching from the left and right). If the limit approaches positive or negative infinity, a vertical asymptote exists at that value.
For example, if a rational function has a denominator that becomes zero at a certain value, such as x = 2, evaluate the limits of the function as x approaches 2 from the left and right. If the limits are positive or negative infinity, then there is a vertical asymptote at x = 2.
In summary, to determine if a function has a vertical asymptote, check for restrictions in the domain and evaluate the limits as the input approaches suspected values. If the limits approach positive or negative infinity, there is a vertical asymptote at that value.
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Which expression is equivalent to
1/4x + 3 - 1/3x + (-2) ?
A. x + 5
B. 1/12x - 1
C. x + 1
D. 1 - 1/12x
Answer:
Collect Like terms...Then Take the LCM
1/4x -1/3x +3 - 2
-1/12x + 1
Or
1 - 1/12x .
Option D.
pls answer more points
Answer:
Yes, 0.3 is the multiplicative inverse of 3 1/3 since 0.3 * 3/13 = 1.
Step-by-step explanation:
Multiplicative inverses, also called reciprocals, are two numbers whose product is 1.
What number multiplied by 3 1/3 equals 1?
3 1/3 * x = 1
10/3 x = 1
3/10 * 10/3 x = 1 * 3/10
x = 3/10 = 0.3
Answer: Yes, 0.3 is the multiplicative inverse of 3 1/3 since 0.3 * 3/13 = 1.
which action by the group leader demonstrates effective leadership?
Effective leadership can be demonstrated in many different ways, but here are a few examples of actions that may indicate effective leadership by a group leader:
1. Clear communication: A group leader who communicates clearly and effectively with their team is more likely to build trust and respect among the group.
2. Empathy and emotional intelligence: A leader who demonstrates empathy and emotional intelligence can help build a positive team culture by understanding and acknowledging the feelings and needs of their team members.
3. Delegation and empowerment: An effective leader knows how to delegate tasks and responsibilities to team members in a way that maximizes their strengths and abilities, while also providing support and guidance as needed.
4. Leading by example: A leader who sets a positive example for their team by modeling the behaviors and attitudes they want to see in their team is more likely to earn respect and trust from their team members.
5. Strategic thinking: A leader who is able to think strategically and make informed decisions based on data and evidence can help steer their team towards success.
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PLEASE HELP!!!! The Box-and-Whisker Plot represents the ages of 40 people who responded to a telephone survey.
Which statement is true about this data set?
A. About 50% of the respondents were at or between 40 and 67.5 years old.
B. The range of the data is 84 years.
C. The outlier is 28 years.
D. The mean is 51 years.
Answer:
the answer is A
Step-by-step explanation:
About 50% of the respondents were at or between 40 and 67.5 years old.
Two turtles, which are 750 meters apart, start moving toward each other. One turtle travels at an average speed of 1 km/h, and the other travels 1 km/h faster. When will the turtles meet if they started to move at 11:00 a.m.
The time at which the turtles meet if they started to move at 11:00 a.m is; 11:15 a.m
What is the relationship between distance, time and speed?
Distance between the two turtles = 750 m
First turtle travels at an average speed of 1 km/h. Thus; v₁ = 1 km/h
Second turtle travels at an average speed of 1 km/hr faster than the first. Thus; v₂ = 2 km/h
Since second turtle is moving 2 times faster than the first one, it means the second turtle will cover 2/3 of the total distance while the first will cover 1/3 of the total distance at the point they will meet.
Thus; Distance covered by turtle 2 = 2/3 * 0.750 = 0.5 km
Time = distance/speed
Time = 0.5/2 = 0.25 hours = 15 minutes
Since they both started at 11.00 a.m then they will meet at 11:15 a.m
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Answer:
15 min
Step-by-step explanation:
mind telekinisis B)
Prove that 53586077 is composite by finding a witness in the form of a positive integer a < 53586077 such that a^(53586077−1) is not equal to 1. Give any information necessary to show that your witness in fact witnesses. (Note: do not use a factor as a witness! Sure, 53586077 is small enough that you can exhaustively find a factor, but we want to test your knowledge of the primality-testing algorithm without using awkwardly-big numbers.)
(b) The number 294409 is a Carmichael number. Prove that it is composite by finding a witness in the form of a nontrivial square root of 1.
The 53586077 is composite, we can use Fermat's Little Theorem for primality testing. The theorem states that if p is a prime number and a is any positive integer less than p, then
\(a^(p-1) ≡ 1 (mod p).\)
Let's take a positive integer a = 2 as our witness. We need to calculate\( 2^(53586077-1) mod 53586077\) and check if it's equal to 1.
\(2^(53586076) mod 53586077 = 3639153\) (using a calculator or software)
Since 3639153 is not equal to 1, this shows that 53586077 is composite, and 2 is a valid witness.
For the Carmichael number 294409, we need to find a nontrivial square root of 1 modulo 294409. A nontrivial square root of 1 is an integer x such that x^2 ≡ 1 (mod 294409) and x ≠ 1 or x ≠ -1 (mod 294409).
Let's take a = 3 as our witness. We need to calculate 3^((294409-1)/2) mod 294409:
\(3^147204 mod 294409 = 1\) (using a calculator or software)
Now, we need to find 3^((294409+1)/2) mod 294409:
\(3^147205 mod 294409 = 294408 \)(using a calculator or software)
Since 1 and 294408 are the trivial square roots of 1 (mod 294409), 3 is not a valid witness for this Carmichael number. However, using trial and error with other witnesses, we can eventually find a nontrivial square root of 1, proving that 294409 is composite.
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In which quadrant does θ lie if the following statements are true: csc θ> 0 and sec θ> 0
ANSWER
First quadrant
EXPLANATION
Those two trigonometric functions are the reciprocal of the sine and cosine functions:
\(\begin{gathered} \sec \theta=\frac{1}{\cos \theta} \\ \csc \theta=\frac{1}{\sin \theta} \end{gathered}\)Therefore:
\(\csc \theta>0\Rightarrow\sin \theta>0\)sinθ is greater than zero for the first and second quadrants.
Also:
\(\sec \theta>0\Rightarrow\cos \theta>0\)cosθ is greater than zero for the first and fourth quadrants.
Hence, for cscθ>0 and secθ>0, angle θ lies in the first quadrant.
Is this a special product? If yes, what type81a2b4 − c6
Special Product are the result of binomials being multiplied, or simplified further, and can be solved with ease using the First Last Inner Outer method. this product is not a special product.
Special Product (a+b) (a+b) = aa + ab + ab + bb = \(a^{2} + 2ab + b^{2}\).
we can use this formula anytime we are multiplying a binomial of the form a + b.
Factor as a Difference of Squares
factoring: \(81a^{2} b^{4} - c^{6}\) = \((3^{4}a^{2} . b^{4}) - c^{6}\)
A difference of two perfect squares, \(A^{2} - B^{2}\) can be factored into
\((A+B)(A-B)\\A^{2} - AB + BA - B^{2}\\ A^{2} - AB + AB -B^{2}\\ A^{2} -B^{2}\)
AB = BA is he commutative property of multiplication from the expression.
-AB+BA equal zero and is therefore eliminated from the expression.
81 is the square of 9
\(a^{2}\) is the square of \(a^{1}\)
\(b^{4}\) is the square of \(b^{2}\)
\(c^{6}\) is the square of \(c^{3}\)
Factorization is \((9ab^{2}+c^{3}) . (9ab^{2}-c^{3} )\)
Factoring: \((9ab^{2}+c^{3})\)
A sum of perfect cubes, \(a^{3} + b^{3}\) can be factored into :\((a+b).(a^{2}-ab+b^{2})\\a^{3}-a^{2}b+ab^{2}-b^{2}a+b^{3}\\ a^{3}+(a^{2}b-ba^{2})+(ab^{2}-b^{2}a)+b^{3}\\ a^{3}+b^{3}\)
9 is not a cube(Binomial can not be factored as the difference of two perfect cubes)
Factoring: \((9ab^{2}-c^{3} )\)
A difference of two perfect cubes, \(a^{3} - b^{3}\) can be factored into
\((a-b).(a^{2}+ab+b^{2})\\a^{3}+a^{2}b+ab^{2}-ba^{2}-b^{2}a-b^{3}\\ a^{3}+(a^{2}b-ba^{2})+(ab^{2}-b^{2}a)-b^{3}\\ a^{3}-b^{3}\)
9 is not a cube(Binomial can not be factored as the difference of two perfect cubes)
Hence, 81a2b4 - c6 this solution deals with factoring binomials as the sum or difference of cubes.
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Does anyone know this ?
Answer:
A or b
Step-by-step explanation:
Hope this helps
Answer:
A
Step-by-step explanation:
I believe, it seems as if the shape was dragged across the x=y axis
neve commercial bank is the only bank in the town of york, pennsylvania. on a typical friday, an average of 10 customers per hour arrive at the bank to transact business. there is currently one teller at the bank, and the average time required to transact business is 4 minutes. it is assumed that service times may be described by the negative exponential distribution. if a single teller is used, find:
We can use the M/M/1 queuing model to solve this problem.
(a) The arrival rate of customers is λ = 10 per hour, and the service rate of the teller is μ = 15 per hour (since the average service time is 4 minutes or 0.067 hours). Using the formula for the utilization factor, we have:
ρ = λ/μ = 10/15 = 0.67
(b) Using the formula for the average number of customers in the system, we have:
L = λ/(μ-λ) = 10/(15-10) = 2
(c) Using the formula for the average time spent by a customer in the system, we have:
W = 1/(μ-λ) = 1/(15-10) = 0.2 hours or 12 minutes
In summary, the utilization factor of the teller is 0.67, the average number of customers in the system is 2, and the average time spent by a customer in the system is 12 minutes. These results indicate that the bank is operating at a relatively high level of congestion, with customers experiencing a significant amount of waiting time.
One possible solution to this problem is to add another teller to the bank to increase the service rate and reduce the average waiting time for customers. Alternatively, the bank could implement a system for scheduling appointments or prioritizing certain types of transactions to better manage the flow of customers.
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Open or closed circle?
What is the answer for the number line?
What is the solution?
To isolate m, we'll multiply both sides by 8.
We go from m/8 < 4 to m < 32
This describes any number smaller than 32. We aren't including 32 itself, so we have an open circle at 32 on the number line. The shading is to the left since everything to the left of 32 is smaller than 32.
HELP QUICKEST GETS BRAINLIEST PLZZ FOR NTH TERM
Answer:
The nth term of this sequence is T = n^2 + 2n + 1
the general term is Tn = n^2 + 2n + 1
Find the coordinates of the midpoint of AB.'
4. A(7,-4), B (5,2)
5. A(-3, -2), B (9,6)
Answer:
4. (6,-1) 5. (3,2)
Step-by-step explanation:
− 7 < x ≤ − 4 x is an integer. Write down the possible values of x
Answer:
-5 and -6
Step-by-step explanation:
-5 and -6 are the only numbers between -7 and -4
What two numbers multiplies to negative 480 and adds to negative 28?
Answer:
-40 ,12
Step-by-step explanation:
you will have to look for the factors of 480 that satisfy this condition and for this case , they're -40 and 12