40 times what equals 106?
Answers
Answer:
2.65 is your answer
Step-by-step explanation:
Related Questions
7,652x5 please regroup I don’t understand :(
Answers
Answer:
38260
Step-by-step explanation:
ur welcome
Answer:
38,260
Step by step instructions
A system of equations is shown below.
Equation 1: 2x−y=−8
Equation 2: x+2y=6
To begin solving the system of equations, Equation 1 is multiplied by a value of 2 to create Equation 3.
Equation 3: 4x−2y=−16
Equation 2: x+2y=6
Which procedure could best be used to eliminate one of the variables?
Possible Answers:
add Equation 2 to Equation 3
subtract Equation 2 from Equation 3
subtract Equation 3 from Equation 2
multiply Equation 2 by a value of 4
Answers
Answer:
add equation 2 to equation 3
Step-by-step explanation:
x + 2y = 6 → (2)
4x - 2y = - 16 → (3)
adding (2) and (3) term by term will eliminate y
5x + 0 = - 10
5x = - 10 ( divide both sides by 5 )
x = - 2
substitute x = - 2 into either equation (1) or equation(2) and solve for y
substituting into (2)
- 2 + 2y = 6 ( add 2 to both sides )
2y = 8 ( divide both sides by 2 )
y = 4
solution is x = - 2 and y = 4
PLEASE HELP I DONT UNDERSTAND!!! Mason works in a cell phone store where he earns a base salary of $105 per a day plus 15% of his sales. He earned $600 by working on a Saturday and Sunday and sold the same amount on both days. Select all of the statements that help explain how to find his sales for each day.
A. Mason's base salary is $105, so over the 2 days he earned $210.
B. Subtract $210 from $600 to find he made $390 on sales.
C. Mason's base salary is $600, so over the two days he earned $1,200.
D. Multiply $390 by 0.15 to find he sold $58.50 worth of cell phones. Divide $58.50 by 2 to find he sold $29.25 worth of cell phones each day.
E. Divide $390 by 0.15 to find he sold $2,600 worth of phones. Divide $2,600 by 2 to find he sold $1,300 worth of phones each day.
F. Add $1,200 to $105 to find Mason made $1,305 on phone sales.
Answers
Answer:
I think b, sorry im not as good
The least preferable and reliable method of selecting people to participate in a research study is:_____.
Answers
The least preferable and reliable method of selecting people to participate in a research study is convenience sampling.
Convenience sampling is a type of sampling in which you include people who are easy to reach. Convenience sampling is included in non-probability sampling because it doesn't include a random selection of the participants. Convenience sampling can be used when you need to conduct a study quickly or when you are on a shoestring budget as it is inexpensive compared to other methods of sampling.
It is the least preferable method because of the inability to generalize the result of the survey to the population as a whole. In addition to this, there is a possibility of under or over-representation of the population as a whole. The biggest problem with convenience sampling is dependence as the sample items are connected to each another in some way. This dependency interferes with statistical analysis.
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The first three terms of a sequence are given. Round to the nearest thousandth
75, 90, 108, ...
Find the 7th term.
Answers
The value of the 7th term of the geometric progression is 223.9488
Based on the information given,
First term = 75
Second term = 90
Common ratio = 90/75 = 1.2
The nth term of a geometric progression is calculated as:
\(a_n=ar^{r-1}\)
The 7th term will then be:
\(= 75 \times (1.2)^6\)
\(=75\times2.985984\)
\(=223.9488\)
Therefore, the value of the 7th term of the geometric progression is 223.9488.
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what type of relationship does the following regression line represent? group of answer choices a positive relationship a negative relationship a curvilinear relationship no relationship
Answers
If the regression line is not a straight line, but rather a curve, then it may represent a curvilinear relationship. A positive relationship is when two variables increase together, a negative relationship is when one variable increases while the other decreases, and no relationship is when there is no pattern or correlation between the variables.
The given regression line represents a curvilinear relationship. In a curvilinear relationship, the pattern between the variables is not linear but rather follows a curve. This type of relationship can include both positive and negative trends within the same data set, making it different from strictly positive or negative linear relationships.
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Please help I will mark branliest
The measure of an interior angle of a regular polygon is 172.5 degrees.
How many sides does this polygon have?
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find the lemgth of arc PQ
Answers
The arc length is D) 3.14 meters.
What is arc length?
In mathematics, an arc is a portion of a curve that can be thought of as a segment of the curve. An arc is a connected set of points on a curve, usually a portion of a circle.
It is defined by two endpoints and all the points along the curve between them. The length of an arc is the distance along the curve between its two endpoints.
The distance along the curved line that forms the arc (a section of a circle) is measured using the arc length formula.
\(A_L=\frac{\theta}{360\textdegree}2\pi r\)
Here the give circle Radius PR = 3m and θ=60°.
Now using arc length formula then,
=> Arc length \(A_L=\frac{\theta}{360\textdegree}2\pi r\)
=> \(A_L=\frac{60}{360} \times2\times3.14\times3\)
=> \(A_L=\frac{1}{6}\times2\times3.14\times3\)
=> \(A_L\) = 3.14 m.
Hence the arc length is D) 3.14 meters.
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Write the equation for each table
Answers
Answer:
Step-by-step explanation:
First table:(left)
(1, 15) (2, 30)
(30 - 15)/(2 - 1) = 15/1 = 15
y - 15 = 15(x - 1)
y - 15 = 15x - 15
y = 15x
Second table:(right)
(0, 10) (1, 25)
(25 - 10)/(1 - 0)= 15/1= 15
y - 10 = 15(x - 0)
y - 10 = 15x - 0
y = 15x + 10
i need help will give brainliest if correct.
Answers
Answer:
The answer I got was 2. hope that helps.
Step-by-step explanation:
What is the area of the trapezoid?
Answers
Answer:
26 this is because 4x5=20 then add the triangle which is 3x4 ÷ 2 equalling 26
Answer:
Step-by-step explanation:
(5+8)/2 = 13/2 = 6.5
6.5*4 = 26m²
The formula for the area of a trapezoid is the same as a trapezium :
(a+b)/2 *h = Area
Find an LU factorization of the matrix A (with L unit lower triangular). A=
⎣
⎡
4
−8
10
−8
8
−4
3
5
−7
7
6
−7
0
3
−3
⎦
⎤
Answers
The LU factorization of matrix A is A = LU, where L = [[1, 0, 0], [-2, 1, 0], [1.5, -3, 1]] and U = [[4, -8, 10], [0, 24, -27], [0, 0, -12.5]].
Let's go step by step to find the LU factorization of matrix A.
Matrix A:
A =
[4, -8, 10]
[-8, 8, -7]
[6, -7, 3]
Step 1:
Initialize the L matrix as an identity matrix of the same size as A.
L =
[1, 0, 0]
[0, 1, 0]
[0, 0, 1]
Step 2:
Perform Gaussian elimination to obtain U.
- Multiply the first row of A by (1/4) and replace the first row of A with the result.
A =
[1, -2, 2.5]
[-8, 8, -7]
[6, -7, 3]
- Subtract 8 times the first row of A from the second row of A and replace the second row of A with the result.
A =
[1, -2, 2.5]
[0, 24, -27]
[6, -7, 3]
- Subtract 6 times the first row of A from the third row of A and replace the third row of A with the result.
A =
[1, -2, 2.5]
[0, 24, -27]
[0, 5, -12.5]
Step 3:
Update the L matrix based on the operations performed during Gaussian elimination.
L =
[1, 0, 0]
[0, 1, 0]
[0, 0, 1]
Step 4:
The resulting matrix A is the upper triangular matrix U.
U =
[1, -2, 2.5]
[0, 24, -27]
[0, 5, -12.5]
Therefore, the LU factorization of matrix A is:
L =
[1, 0, 0]
[0, 1, 0]
[0, 0, 1]
U =
[1, -2, 2.5]
[0, 24, -27]
[0, 5, -12.5]
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Which Expression is equivalent to (2^3)^-5?
1/2^15
1/2^8
2^8
2^15
Answers
Answer:
Answer: 1/2^15
Step-by-step explanation:
Hope this helped
PRE ALGEBRA !! BRAINLEST!!!!!
Answers
Applying the knowledge of algebraic equations, we have:
21. x = -5
23. x = -2
24. 35, 37, 39
27. W = V/LH
28. B = (A - PH)/2
How to Solve Algebra?In algebra, to solve for any variable, we have to make the variable the subject of the formula by isolating the variable to one side of the algebraic equation.
21. Let the unknown number = x. The algebraic equation that would be used to find x is:
x - 6 = -11
Solve for x
x = -11 + 6
x = -5
23. Let the unknown number = x. Thus, the algebraic equation to be created to find x would be:
5x - 1 = -11
Solve for x
5x = -11 + 1
5x = -10
x = -10/5
x = -2
24. Odd numbers cannot be divided by 2 without a remainder, so, the consecutive odd numbers that have a sum of 111 are: 35, 37, 39
27. V = LWH
Solve for W
V/LH = W
W = V/LH
28. A = PH + 2B
Solve for B in the equation
A - PH = PH + 2B - PH
A - PH = 2B
Divide both sides by 2
(A - PH)/2 = B
B = (A - PH)/2
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Answer:
21:x=17
23:x=-2
24:35,37,39
27:V/LH
28:B=(A-PH)/2
Step-by-step explanation:
21: To find the difference between 6 and -11, you can do 6-(-11). Since the two negatives cancel out into positive, it will become 6+11 which is 17.
23: So we know that -11 is 1 added to 5 times a number. Let's just use x for the number. So we have 5x+(-1)=-11 or 5x -1=-11. So we move the negative 1 to the other side and make the sign in front of it a positive. It would look like this: 5x=-11+1, which is also 5x=-10, so x=10/5 or -2.
24: You first do 111/3 which is 37. Then on the left side, you take away to from 37 since it wants it to be odd, and on the right side, you add 2 to get 39. So, it will look like: 35,37,39.
27: V=LWH, W=V/LH.
28: A - PH = PH + 2B - PH, A - PH = 2B, (A - PH)/2 = 2B/2, B = (A - PH)/2.
please help, much appreciated!!!!(✿◠‿◠)
Answers
Step-by-step explanation:
5 people.
how many ways can they line up in general ?
5 choices for the 1st position, then no matter what we picked, 4 remaining for the second, then 3 for the 3rd, 2 for the 4th and 1 for the 5th :
5×4×3×2×1 = 5! = 120 ways.
but we have restrictions. we don't want the girls not just anywhere in the line, we want them to be at the end points of the line.
and none of the boys should ever be at one of the ends.
so, we actually have only
2×1 for the endpoints and 3×2×1 for the 3 boy positions in the middle.
in total
2×1×3×2×1 = 12
under these constrictions they have actually only 12 different ways to line up.
Evaluate the function for the following values:
f(1) =
f(2)=
f(3) =
Answers
Answer: \(f(1)=1, f(2)=0, f(3)=2\)
Step-by-step explanation:
\(0 \leq 0 \leq 1 \implies f(1)=1^2 =1\\\\1 < 1 \leq 2 \implies f(2)=-2+2=0\\\\2 < 3 \leq 3 \implies f(3)=3^2 -3(3)+2=2\)
the margin of error of a confidence interval is the error from biased sampling methods. True or False
Answers
A spinner is divided into five colored sections that are not of equal size: red, blue, green, yellow, and purple. The spinner is spun several times, and the results are recorded below:
Spinner Results
Color Frequency
Red 7
Blue 15
Green 6
Yellow 5
Purple 8
Based on these results, express the probability that the next spin will land on purple as a decimal to the nearest hundredth.
Answers
Answer:
The probability that the next spin will land on blue is 0.12.Step-by-step explanation:
The result of the several spins are as follows:
Color Frequency
Red 18
Blue 9
Green 18
Yellow 19
Purple 12
TOTAL 76
Compute the probability that the next spin will land on blue as follows:
Thus, the probability that the next spin will land on blue is 0.12.
I need help I will give brainliest I promise please helpppp
Answers
8% of 500 is 40.
FizzBuzz Game The FizzBuzz is an elementary school learning game used to practice counting. The players take turns counting, stating with one and going up. The rules are simple: when your turn arrives, you say the next number. However, if that number is a multiple of five, you should say the word fizz. If the number is a multiple of seven, you should say buzz. And if it is a multiple of both, you should say fizzbuzz. If you mess up, you're out! Write a program called FizzBuzz that plays a version of the game. Use a for loop to count from 1 to 100 and if/else statements to decide whether to output the number or one of the words fizz, buzz, or fizzbuzz. Example output: 1 2 3 fizz 6 buzz 34 fizzbuzz 36 99 Fizz
Answers
The end=" " argument is used to print the elements on the same line with a space in between.
Python program called "FizzBuzz" that plays the FizzBuzz game according to the given rules:
for num in range(1, 101):
if num % 5 == 0 and num % 7 == 0:
print("fizzbuzz", end=" ")
elif num % 5 == 0:
print("fizz", end=" ")
elif num % 7 == 0:
print("buzz", end=" ")
else:
print(num, end=" ")
When you run this program, it will count from 1 to 100 and output the numbers or the words "fizz", "buzz", or "fizzbuzz" based on the rules you described.
Example output:
1 2 3 4 fizz 6 buzz 8 9 fizz 11 12 13 buzz fizz 16 17 fizz 19 buzz 21 22 23 fizz buzz 26 fizz 28 29 fizzbuzz 31 32 fizz 34 buzz fizz 37 38 fizz 40 buzz 42 fizz 44 45 fizzbuzz 47 48 fizz buzz 51 fizz 53 54 fizzbuzz buzz 57 fizz 59 60 fizz 62 buzz fizz 65 66 fizz 68 69 fizzbuzz 71 72 fizz 74 buzz fizz 77 78 fizz buzz 81 fizz 83 84 fizzbuzz 86 buzz fizz 89 90 fizz 92 93 fizzbuzz buzz 96 fizz 98 99 fizzbuzz
The program uses a for loop to iterate from 1 to 100 and checks each number against the conditions using if/else statements. If the number is divisible by 5, it outputs "fizz". If the number is divisible by 7, it outputs "buzz". If the number is divisible by both 5 and 7, it outputs "fizzbuzz". If none of these conditions are met, it simply outputs the number itself. The end=" " argument is used to print the elements on the same line with a space in between.
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A teacher chooses two students in a class of 15 girls and 10 boys. The students are randomly chosen. What is the probability that the teacher chooses two girls?
I keep hearing 3/5 and 7/20 but I don’t know which is right, please help.
Answers
Answer: I would go with 3/5, the person who said 7/20 doesn't have any thank you's or ratings besides themselves while 3/5 has thank you's , and confirmation
Step-by-step explanation:
You have inherited land that was purchased for $30,000 in 1960. The value of the land increased by approximately 5% per year. What is the approximate value of the land in the year 2015?
Answers
Answer:
$112,500
Step-by-step explanation:
Discuss the following points in respect to different RAID levels ( 0 to 6,10,50 and 60) a) Performance (in respect to process speed of each level) b) Effective storage use (overhead role for each level) c) The role of disk failure (number of disk failure which each level can tolerate) d) Minimum number of hard drive required for each level.
Answers
Different RAID levels offer varying levels of performance, effective storage use, disk failure tolerance, and minimum drive requirements.
RAID (Redundant Array of Independent Disks) is a technology that combines multiple physical drives into a single logical unit to improve performance, data redundancy, and fault tolerance. Here's a breakdown of the different RAID levels in terms of performance, effective storage use, disk failure tolerance, and minimum drive requirements:
RAID 0: This level provides excellent performance by striping data across multiple drives, but it lacks redundancy. It offers high read/write speeds but does not tolerate any disk failure. It requires a minimum of two drives. RAID 1: It offers data mirroring, which provides high fault tolerance but sacrifices storage efficiency and performance. All data is duplicated on each drive. It can tolerate the failure of one disk and requires a minimum of two drives.RAID 5: This level combines striping with parity for improved performance and fault tolerance. It distributes parity information across all drives, allowing the system to recover data if a single drive fails. It requires a minimum of three drives and can tolerate the failure of one disk. RAID 6: Similar to RAID 5, it uses striping with double parity for increased fault tolerance. It can tolerate the failure of up to two drives and requires a minimum of four drives. RAID 6 offers higher data redundancy but slower write performance compared to RAID 5. RAID 10: It combines mirroring (RAID 1) and striping (RAID 0) to provide both high performance and fault tolerance. RAID 10 requires a minimum of four drives and can tolerate the failure of one or more drives within each mirrored pair. RAID 50: This level combines the striping of RAID 0 with the fault tolerance of RAID 5. It requires a minimum of six drives, combining the minimum requirements of RAID 0 and RAID 5. RAID 50 can tolerate the failure of one drive in each RAID 5 array. RAID 60: It combines the striping of RAID 0 with the fault tolerance of RAID 6. RAID 60 requires a minimum of eight drives, combining the minimum requirements of RAID 0 and RAID 6. It can tolerate the failure of up to two drives in each RAID 6 array.In summary, different RAID levels offer a trade-off between performance, effective storage use, fault tolerance, and minimum drive requirements. It is important to carefully consider the specific needs of your system to choose the appropriate RAID level.
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make z the subject 9d= 6z - 5d
Answers
Answer:
\(z=2\frac{1}{3}d\)
Step-by-step explanation:
\(9d=6z-5d\)
\(6z=9d+5d\)
\(6z=14d\) (combine like terms)
\(z=2\frac{1}{3}d\)
Hope this helps :)
Answer the questions about the following polynomial. 1- x³/8
Answers
the expression represents a quadratic polynomial with 2 terms.The constant term is 1, the leading tern is x and the leading coefficient is 1
how do I solve this equation 5x+7=3x-5
Answers
Answer:
x = -6
Step-by-step explanation:
Simplifying
5x + 7 = 3x + -5
Reorder the terms:
7 + 5x = 3x + -5
Reorder the terms:
7 + 5x = -5 + 3x
Solving
7 + 5x = -5 + 3x
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-3x' to each side of the equation.
7 + 5x + -3x = -5 + 3x + -3x
Combine like terms: 5x + -3x = 2x
7 + 2x = -5 + 3x + -3x
Combine like terms: 3x + -3x = 0
7 + 2x = -5 + 0
7 + 2x = -5
Add '-7' to each side of the equation.
7 + -7 + 2x = -5 + -7
Combine like terms: 7 + -7 = 0
0 + 2x = -5 + -7
2x = -5 + -7
Combine like terms: -5 + -7 = -12
2x = -12
Divide each side by '2'.
x = -6
Simplifying
x = -6
The solution to the equation 5x + 7 = 3x - 5 is x = -6.
We have,
To solve the equation 5x + 7 = 3x - 5, we need to isolate the variable x on one side of the equation.
Here's how we can do that:
Start by subtracting 3x from both sides of the equation to move all the x terms to one side:
5x + 7 - 3x = 3x - 5 - 3x
Simplifying, we get:
2x + 7 = -5
Next, subtract 7 from both sides of the equation to isolate the term with x:
2x + 7 - 7 = -5 - 7
Simplifying, we get:
2x = -12
Now, to solve for x, we divide both sides of the equation by 2:
(2x)/2 = (-12)/2
Simplifying, we get:
x = -6
Thus,
The solution to the equation 5x + 7 = 3x - 5 is x = -6.
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Calculate the unknown angle of k
Answers
Answer:
60°
Step-by-step explanation:
since it is an equilateral triangle all sides are equal. let's make the other 2 angles k.
k+k+k=180°{sum of angles in a triangle}
3k=180°
k=60°(each of them is 60°)
Express the inequality a < -0.18 using interval notation
Answers
Answer:
( -∞, -0.18 )
Step-by-step explanation:
a < -0.18
Interval Notation: ( -∞, -0.18 )
What is 0.36x100 what’s the answer
Answers
Answer:
36
Step-by-step explanation:
0.36x100
You move the decimal over once to the left to get a whole number of 36
Find the limit. Use l'Hospital's Rule where appropriate. If there is a more elementary method, consider using it. lim [In(x9 - 1) - In(x5- 1)]
Answers
The limit of the given expression as x approaches 1 from the right is 1.8.
To evaluate the limit of the given expression:
\(lim_{x - > 1} + [ln(x ^ 9 - 1) - ln(x ^ 5 - 1)]\)
We can start by directly substituting x = 1 into the expression:
[ln(1⁹ - 1) - ln(1⁵ - 1)]
= [ln(0) - ln(0)]
However, ln(0) is undefined, so this approach doesn't provide a meaningful answer.
To apply L'Hôpital's Rule, we need to rewrite the expression as a fraction and differentiate the numerator and denominator separately. Let's proceed with this approach:
\(lim_{x - > 1}\)+ [ln(x⁹ - 1) - ln(x⁵ - 1)]
= \(lim_{x - > 1}\)+ [ln((x⁹ - 1)/(x⁵ - 1))]
Now, we can differentiate the numerator and denominator with respect to x:
Numerator:
d/dx[(x⁹ - 1)] = 9x⁸
Denominator:
d/dx[(x⁵ - 1)] = 5x⁴
Taking the limit again:
\(lim_{x - > 1}\)+ [9x⁸ / 5x⁴]
= \(lim_{x - > 1}\)+ (9/5) * (x⁸ / x⁴)
= (9/5) * \(lim_{x - > 1}\)+ (x⁸ / x⁴)
Now, we can substitute x = 1 into the expression:
(9/5) * \(lim_{x - > 1}\)+ (1⁸ / 1⁴)
= (9/5) * \(lim_{x - > 1}\)+ 1
= (9/5) * 1
= 9/5
= 1.8
The complete question is:
Find the limit. Use l'Hospital's Rule where appropriate. If there is a more elementary method, consider using it. \(lim_{x - > 1} + [ln(x ^ 9 - 1) - ln(x ^ 5 - 1)]\)
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