Which of the following are types of variations?
A .Direct
B. Inverse
C. Variable
D. Combined
E. Joint
It can be more than one answer choice
Answer: Hence, option 'A', 'B', 'D' , 'E' are correct.
Step-by-step explanation:
There are many different types of variations as follows:
1) Direct variations in which the relationship between two different variables is direct.
2) Inverse variations in which the relationship between two different variables is opposite.
3) Joint variations in which the relationship between one variable varies directly with the product of two or more variables.
4) Combined variations in which one variable is directly proportion to second variable but inversely proportion with third variables.
Hence, option 'A', 'B', 'D' , 'E' are correct.
Suppose that a new fuel-efficient European car travels an average of 26 kilometers on 1 liter of gas. If gas costs 1.50 euros per liter, how much will it cost to drive 300 kilometers in dollars?
19.04 dollars.
The student is asking how to calculate the cost of driving 300 kilometers in a fuel-efficient car, with the cost given in dollars instead of euros. To calculate this, we need to perform several steps:
First, calculate the total liters of gasoline needed to drive 300 kilometers in a car that consumes 1 liter per 26 kilometers.Next, calculate the total cost in euros.Finally, convert euros to dollars.Step-by-step, this calculation is:
Fuel Required: 300 km \/ 26 km/l = 11.54 liters (approximately).Total Cost in Euros: 11.54 liters * 1.50 euros/liter = 17.31 euros.Exchange Rate: Assuming an exchange rate of 1 euro = 1.10 dollars (this rate would need to be checked for the current value as it fluctuates).Total Cost in Dollars: 17.31 euros * 1.10 dollars/euro = 19.04 dollars.Therefore, it will cost approximately 19.04 dollars to drive 300 kilometers.
What is the difference of the polynomials?
(8r6s3 – 9r5s4 + 3r4s5) – (2r4s5 – 5r3s6 – 4r5s4)
A.6r6s3 – 4r5s4 + 7r4s5
B.6r6s3 – 13r5s4 – r4s5
C.8r6s3 – 5r5s4 + r4s5 + 5r3s6
D.8r6s3 – 13r5s4 + r4s5 – 5r3s6
Answer:
[tex]8r^6s^3-5r^5s^4+r^4s^5+5r^3s^6[/tex]
Step-by-step explanation:
We want to simplify;
[tex](8r^6s^3-9r^5s^4+3r^4s^5)-(2r^4s^5-5r^3s^6-4r^5s^4)[/tex]
We expand the bracket to obtain;
[tex]8r^6s^3-9r^5s^4+3r^4s^5-2r^4s^5+5r^3s^6+4r^5s^4[/tex]
We now group the like terms to obtain;
[tex]8r^6s^3-9r^5s^4+4r^5s^4+3r^4s^5-2r^4s^5+5r^3s^6[/tex]
We now simplify to get;
[tex]8r^6s^3-5r^5s^4+r^4s^5+5r^3s^6[/tex]
The correct answer is C
Answer:
c
Step-by-step explanation:
The rays or segments that form angles are called________.
A. Points
B. Vertices
C. Sides
D. Endpoints
What is the value of y?
Enter your answer in the box.
Which graph represents the solution set of the system of inequalities?
{y<2/3x
y≥−x+2
Answer:
Last graph is the answer.
Step-by-step explanation:
The inequalities are y < [tex]\frac{2}{3}x[/tex] and y ≥ -x + 2
Now first inequality y < [tex]\frac{2}{3}x[/tex] will represent a dotted line passing through origin and a point (3, 2)
This inequality will be in the form a dotted line and shaded area will be below the line.
Second inequality is y ≥ -x + 2
Line representing the inequality will be solid in shape and shaded area will be above this line.
Common shaded area of both the inequalities matches with the last option.
Therefore, Last option (second row last figure) will be the answer.
Write an algebraic expression, 1 less than the quotient of a number n and 6
The expression for the 1 less than the quotient of a number n and 6 is n/6 - 1.
What is an expression?It is defined as the combination of constants and variables with mathematical operators.
It is given that:
The word expression:
1 less than the quotient of a number n and 6:
Here n is the number:
A number is a mathematical entity that can be used to count, measure, or name things. For example, 1, 2, 56 etc. are the numbers.
The quotient of a number n and 6 = n/6
1 less than the quotient of a number n and 6:
n/6 - 1
If in the linear expression, one variable is present, then the expression is known as the linear expression in one variable.
Thus, the expression for the 1 less than the quotient of a number n and 6 is n/6 - 1.
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What is the perimeter of △LMN?
A. 8 units
B. 9 units
C. 6 + √10 units
D. 8 + √10 units
we know that
The distance 's formula between two points is equal to
[tex]d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}[/tex]
Step [tex]1[/tex]
Find the distance MN
[tex]M(-2,1)\\N(-1,4)[/tex]
Substitute in the distance's formula
[tex]d=\sqrt{(4-1)^{2}+(-1+2)^{2}}[/tex]
[tex]d=\sqrt{(3)^{2}+(1)^{2}}[/tex]
[tex]dMN=\sqrt{10}\ units[/tex]
Step [tex]2[/tex]
Find the distance NL
[tex]N(-1,4)\\L(2,4)[/tex]
Substitute in the distance's formula
[tex]d=\sqrt{(4-4)^{2}+(2+1)^{2}}[/tex]
[tex]d=\sqrt{(0)^{2}+(3)^{2}}[/tex]
[tex]dNL=3\ units[/tex]
Step [tex]3[/tex]
Find the distance LM
[tex]L(2,4)\\M(-2,1)[/tex]
Substitute in the distance's formula
[tex]d=\sqrt{(1-4)^{2}+(-2-2)^{2}}[/tex]
[tex]d=\sqrt{(-3)^{2}+(-4)^{2}}[/tex]
[tex]dLM=5\ units[/tex]
Step [tex]4[/tex]
Find the perimeter of the triangle LMN
we know that
The perimeter of a triangle is equal to the sum of the three length sides
In this problem
[tex]Perimeter=MN+NL+LM[/tex]
substitute the values in the formula
[tex]Perimeter=(\sqrt{10}+3+5)\ units[/tex]
[tex]Perimeter=(8+\sqrt{10})\ units[/tex]
therefore
the answer is the option D
the perimeter of the triangle LMN is equal to [tex](8+\sqrt{10})\ units[/tex]
Convert 30 feet per second to miles per minute.
5280 ft = 1 mi
Round to the nearest hundredth.
3.Use rigid motions to explain whether the triangles in the figure are congruent. Be sure to describe specific rigid motions in your explanation.
Triangle DPW was translated 1 unit to the left, then it was translated 5 units down and then it was rotated by 90 degrees counterclockwise.
If ray BD bisects angle CBE, ray BC is transparent to ray BA, angle CBD = (3x + 25) degrees, and angle DBE = (7x - 19) degrees, find angle ABD
Answer: The required measure of angle ABD is 148°.
Step-by-step explanation: Given that ray BD bisects angle CBE, ray BC is transparent to ray BA.
Also,
[tex]m\angle CBD=(3x+25)^\circ,~~m\angle DBE=(7x-19)^\circ,~~m\angle ABC=90^\circ.[/tex]
We are to find the measure of angle ABD.
Since ray BD bisects angle CBE, so we have
[tex]m\angle CBD=m\angle DBE\\\\\Rightarrow (3x+25)^\circ=(7x-19)^\circ\\\\\Rightarrow 3x+25=7x-19\\\\\Rightarrow 7x-3x=25+19\\\\\Rightarrow 4x=44\\\\\Rightarrow x=\dfrac{44}{4}\\\\\Rightarrow x=11.[/tex]
So, we get
[tex]m\angle CBD=(3\times11+25)^\circ=58^\circ.[/tex]
Therefore,
[tex]m\angle ABD=m\angle ABC+m\angle CBD=90^\circ+58^\circ=148^\circ.[/tex]
Thus, the required measure of angle ABD is 148°.
the columns in any data table represent __________ in a controlled experiment. a variables b controls
Answer:
A) Variables
A) Independent
A) X
Step-by-step explanation:
One-half the square of b
Answer:
[tex]\frac{b^2}{2}[/tex]
Step-by-step explanation:
We are supposed to write an algebraic expression for given word phrase.
The square of b would be 'b' raised to second power: [tex]b^2[/tex].
Half the square of b would be [tex]b^2[/tex] divide by 2: [tex]\frac{b^2}{2}[/tex].
Therefore, our required expression would be [tex]\frac{b^2}{2}[/tex].
HELP!!! WILL GIVE 20 POINTS AND BRAINLIEST!!!!
Help please thanks...............
In your own words, write the rules for multiplying integers. Then write the rules for dividing integers.
best answer gets brainliest
Mrs. Clever mixes 1.24 liters of red paint with 3 times as much blue paint to make purple paint. She pours the paint equally into 5 containers. How much blue paint is in each container? Give your sender in liters
A line passes through (2, −1) and (4, 5).
Which answer is the equation of the line?
A. −3x+5y=−13
B. −3x+y=−7
C. −3x+y=17
D. −3x+5y=13
Eight plus the quotient of a number and 3 is -2
You drive your car for 4.5 hours at an average speed of 70 miles per hour how far did you go
How do you solve x+2a=16+ax-6a ?
The area of a square poster is 59 in.² find the length of one side of the posterior to the nearest 10th of an inch
area of a square = S^2
to find length of side take square toot of area
sqrt(59) = 7.68114
to nearest tenth = 7.7 inches
You have 480 feet of fencing to enclose a rectangular garden. you want the length of the garden to be 30 feet greater than the width. find the length and width of the garden if you use all of the fencing.
Perform the indicated operation. 2 1/6 – 5 2/3
A. -7 1/2
B. -3 1/3
C. -3 1/2
D. 3 1/6
Answer:
Option C - [tex]2\frac{1}{6}-5\frac{2}{3}=-3\frac{1}{2}[/tex]
Step-by-step explanation:
Given : Expression [tex]2\frac{1}{6}-5\frac{2}{3}[/tex]
To find : Perform the indicated operation in the expression ?
Solution :
Expression [tex]2\frac{1}{6}-5\frac{2}{3}[/tex]
Write mixed fraction into fraction,
[tex]2\frac{1}{6}-5\frac{2}{3}=\frac{13}{6}-\frac{17}{3}[/tex]
Taking Least common denominator,
[tex]2\frac{1}{6}-5\frac{2}{3}=\frac{13-34}{6}[/tex]
[tex]2\frac{1}{6}-5\frac{2}{3}=-\frac{21}{6}[/tex]
[tex]2\frac{1}{6}-5\frac{2}{3}=-\frac{7}{2}[/tex]
Write improper fraction into mixed fraction,
[tex]2\frac{1}{6}-5\frac{2}{3}=-3\frac{1}{2}[/tex]
Therefore, Option C is correct.
The woods family traveled 25 miles in1/2 hour. If it is currently 3:00 P.M. and the family's destination is 225 miles away, at what time will they arrive?
The product of c and 9 is greater than or equal to 23
okay this is the last one i already know how to distribute and such i was just wondering what's my next step
Mandy used the input and output in this table to write ratios. She concluded that because they are not all equivalent, this is not a proportional relationship. Is she correct? Explain.
[ x ][ 1 ][ 2 ][ 5 ][ 10 ]
-------------------------------
[ y ][ 5 ][ 10 ][ 25 ][ 50 ]
5/1 = 10/2 = 25/5 = 10/50
Proportional relationships are relationships with equal ratio. Mandy's conclusion is incorrect because the relationship is proportional, and it has a uniform ratio of 5.
To determine if the input and output are proportional, we simply divide the output (y) by the corresponding input (x).
i.e.
[tex]Ratio = \frac yx[/tex]
So, we have:
[tex]Ratio = \frac 51 = 5[/tex]
[tex]Ratio = \frac{10}{2} = 5[/tex]
[tex]Ratio = \frac{25}{5} = 5[/tex]
[tex]Ratio = \frac{50}{10} = 5[/tex]
For the four input and output data, the ratios are equal (i.e. 5).
This means that the relationship is proportional.
Hence, Mandy's conclusion is incorrect
Read more about proportional relationships at:
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Mandy is correct about the proportional relationship as all the ratios of y to x in her table are equivalent to 5/1. However, there is an error with the last ratio listed as 10/50, which should be 50/10 to match the information in the table. After correcting this typo, it is clear that the relationship is proportional because all of the ratios simplify to the same value.
Explanation:Mandy is indeed correct. For a set of ratios to represent a proportional relationship, they all must have the same value when simplified. From Mandy's table, the ratios formed from the inputs (x) and outputs (y) are 5/1, 10/2, 25/5, and 50/10. When simplified, these should give us a constant ratio if the relationship is proportional. Simplifying the ratios, we get:
5/1 simplifies to 5/110/2 simplifies to 5/125/5 simplifies to 5/150/10 simplifies to 5/1Since all ratios simplify to the same number, 5/1, it indicates that the relationship between x and y is indeed proportional. However, the last ratio listed in the question, 10/50, is incorrect as it should be 50/10 to maintain consistency with the rest of the table. If we correct this ratio to 50/10, then all ratios confirm a proportional relationship.
To further validate this, a proportion can be created by setting two ratios equal to each other. For example, we can compare the first and the second ratio: 5/1 = 10/2. When you cross-multiply, the resulting equations, 5*2 = 10*1, are true, again confirming proportionality.
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If a polygon has 5 sides is it a regular pentagon
The equation of the graphed line is x + 2y = 5. What is the x-intercept