Answer:
m = Q/L
Step-by-step explanation:
Step 1: Write equation
Q = mL
Step 2: Solve for m
Divide both sides by L: Q/L = mRewrite: m = Q/LDorothy made a dot plot showing the heights of her plants in her garden. write a proportion to find the percentage of plants that are exactly 13cm tall.
2/9 = x/100
13/100 = x/100
2/12 = x/100
2/13 = x/20
right answer please.
To find the percentage of plants that are exactly 13cm tall using a proportion, you need to first identify the number of plants that are 13cm tall and the total number of plants. Based on your question, let's assume that 2 out of 9 plants are exactly 13cm tall.
Now, set up a proportion with the given information:
(number of plants 13cm tall) / (total number of plants) = (x) / (100)
In this case, the proportion is:
2/9 = x/100
To solve for x, cross-multiply:
2 * 100 = 9 * x
200 = 9x
Now, divide both sides by 9:
x = 200 / 9
x ≈ 22.22
So, approximately 22.22% of the plants in Dorothy's garden are exactly 13cm tall.
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Given that sinθ=3/5
, find cosθ
and tanθ
. Write your answers as fractions in simplest form.
Answer:
cos θ = 4/5.
tan θ = 3/4.
Step-by-step explanation:
Given sin θ = 3/5, we can find the value for the other side of the right triangle.
Using the Pythagorean formula, we can derive the value of this other leg.
5² = 3² + x²
x = 4.
Since sin θ is O/H, the Hypoteneus is 5 and the Opposite side is 3. The Adjacent side is 4, which will be used when finding cos θ and tan θ.
cos θ= A/H --> cos θ = 4/5.
tan θ= O/A --> tan θ = 3/4.
help me
Answer:
Step-by-step explanation:
a is (5,1)
b is (-5,-1)
c is (5,-1)
3÷14 I ain't got enough money for tutoring so i have to struggle to find answers can someone help me please.
Answer:
0.21428571428
Step-by-step explanation:
hope it helps
The mean mass of five men is 76 kg. The masses of four of the men are 72 kg, 74 kg, 75 kg and 81 kg. What is the mass of the fifth man
Answer:
78kg
Step-by-step explanation:
76×5= 380kg
380-72-74-75-81= 78kg
write the expression as a single logarithm log{3} 40 -log{3} 10 show all steps very clearly please
Answer:
Use the quotient property of logarithms, logb(x)−logb(y)=logb(xy) log b ( x ) - log b ( y ) = log b ( x y ) . log3(4010) log 3 ( 40 10 ). Step 2.
Find the equation of the line.
Use exact numbers.
Y=“blank”x+ “blank”
Answer:
y=mx+b
b= y intercept
mx=slope
First lets find the y intercept = the y intercept is 3
Now lets find the slope = the slope is 3x because each time it goes 3 up it goes one right
So the answer is y=3x+3
Find the area of the polygon with the given vertices.
W(-1, 1)
-4
Z(-3,-2)
4
Ay
2
-4
2
X(4,1)
4 x
Y(2,-2)
The area of a polygon with the given vertices is calculated by adding the areas of the individual triangles that make up the polygon.
What is polygon?A polygon is a closed figure in a plane consisting of a set of straight line segments connected end-to-end. The sides of a polygon are all of equal length, and the angles between them are all of equal measure. Polygons are one of the most fundamental shapes in geometry. They include triangles, squares, rectangles, hexagons, and many more.
The area of triangle WXZ is calculated as (1/2) × |XW × ZY|,
where XW is the vector from W to X and ZY is the vector from Z to Y.
In this example,
XW = (3, -2) and ZY = (-2, -4).
Therefore, the area of triangle
WXZ is (1/2) ×|(3, -2) × (-2, -4)| = (1/2) × 14 = 7.
The area of triangle XYA is calculated similarly,
where XY = (2, 3) and YA = (-2, -4).
Therefore, the area of triangle
XYA is (1/2) ×|(2, 3) ×(-2, -4)| = (1/2)× (-14) = -7.
The area of the polygon is calculated by adding the areas of the individual triangles, which in this example is 7 + (-7) = 0. Therefore, the area of the polygon with the given vertices is 0.
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Mrs. Thomas car averages 23 miles per gallon. How many gallons of gasoline will she need in order to make the round trip ? If the price of gasoline is $2.13 per gallon, what is the cost of the gasoline for the entire trip?
In addition to paying for the gasoline, Mrs. Thomas must also pay $13.92 fo her lunch and $32.98 for her dinner. What is the total amount of her meal expenses?
a. What is the total amount of her gasoline and meal expenses?
b. What operation did you use to figure it out ?
Answer:
a. $70.43
b. 23.43 + 13.92 + 32.98 = t (UNSURE)
Step-by-step explanation:
Since Mrs. Thomas is driving 231 miles using 23 miles per gallon, let's start by dividing 231 by 23
\(\frac{231}{23} = 10.043....\)
We need to round 10.043... to 11 because you can't get part of a gallon.
Now, we need to multiply 2.13 by 11 to get the total amount of money for gasoline.
\(11 * 2.13 = 23.43\)$
We also have the aditional meal expenses, which are $13.92 and $32.98.
We can use an equation to solve. Our total amount will be represented by t.
\(23.43 + 13.92 + 32.98 = t\)
\(t = 70.43\)
Hope this helps! Part b seems a bit confusing. I'll fix my answer if you could clarify, like if I do "communative property" or write equation. :))
weinstein, mcdermott, and roediger (2010) conducted an experiment to evaluate the effectiveness of different study strategies. one part of the study asked students to prepare for a test by reading a passage. in one condition, students generated and answered questions after reading the passage. in a second condition, students simply read the passage a second time. all students were then given a test on the passage material and the researchers recorded the number of correct answers. a. identify the dependent variable for this study. b. is the dependent variable discrete or continuous?
a. The dependent variable for this study is the number of correct answers on the test given.
b. The dependent variable in this study is a discrete variable.
a. The dependent variable for this study is the number of correct answers on the test given to the students after they prepared for the test by either generating and answering questions or reading the passage a second time.
b. The dependent variable in this study is a discrete variable because the number of correct answers can only take on whole numbers (e.g., 0, 1, 2, 3, etc.). It is not possible to have fractional or continuous values of correct answers on the test.
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How to convert improper fraction to proper fraction
Multiply the whole number by the denominator. Add the product to the numerator of the proper fraction. The sum is the numerator of the improper fraction. The denominator will stay the same.
Please Explain!!!!!!!!
Answer:
Formula of reflection the y axis is
P(x,y)→P'(-x,y)
Now
By using formula
E(1,3)=E'(-1,3)
F(1,0)=F'(-1,0)
P(4,2)=P'(-4,2)
R(2,0)=R'(-2,0)
Step-by-step explanation:
Evaluate a -13 when a=33
Wally must complete 40 hours of community service. He does 3 hours each day. Write a linear equation to represent the hours Wally has left after x days.
Answer: y = 40 - 3x
Step-by-step explanation:
x = # of days
y= number of hours remaining
40 minus 3 times the number of days Wally volunteers would be the formula to find the number of hours he has remaining after a certain number, x, days.
Students were asked how they travel to school. The graph shows the results of the survey. Based on the graph, how many students out of 300 students can be expected to walk or bike to school?
Answer:
we need the graph in order to find the answer.
Step-by-step explanation:
Select the correct answer.
A restaurant owner wants to determine the effectiveness of his servers. The owner places a survey regarding the servers' effectiveness with
randomly selected customer bills.
What is the sample?
CA
The sample is all customers of the restaurant.
The sample is the randomly selected customers.
B.
C. The sample is the owner of the restaurant.
D
The sample is the servers.
Please help i'll mark you the brainlyest
Using the concept of sample, the correct option is:
B. The sample is the randomly selected customers.
---------------------------
Sampling:
Suppose I want to estimate the proportion of New York state residents who are Buffalo Bills fans. So i ask, lets say, 1000 randomly selected New York state residents whether they are Buffalo Bills fans, and expand this to the entire population of New York State residents.
In this case:
The sample is 1000 residents.The population is all New York State Residents.---------------------------
In this question, a survey is passed to the customers, which are the sample. Thus, the correct option is:
B. The sample is the randomly selected customers.
A similar problem is given at https://brainly.com/question/24331410
Answer:
b
Step-by-step explanation:
so I'm finding the volume of a cylinder, and for the first question the radius is six and the length is 11 ( both of them are inches ) and I got 1243.44, but when I search the answer up it shows 1244.07. am I wrong or right...?
This is how I solved it, I did 6x6, then 36x11 which is 396, and multiplied that by 3.14 and that's how I got 1243.44. please help, thanks!
Answer:
you dont do 6x6 instead you do 6 pie r then multiply by 11.
Step-by-step explanation:
3x - 2x + 8 = 12; x = 4
Answer:
correct
Step-by-step explanation:
3(4)-2(4)+8=12
12-8+8=12
12=12
1,2,3,4,5,10,20,40,80, The series starts as an arithmetic series and becomes a geometric series starting with 10. Prove by induction that any positive integer can be written as a sum of distinct members of this series
By mathematical induction, we have proven that any positive integer can be written as a sum of distinct members of the given series.
To prove that any positive integer can be written as a sum of distinct members of this series, we can use mathematical induction.
Firstly, let's observe that the given series starts as an arithmetic series with a common difference of 1, and then becomes a geometric series with a common ratio of 2.
Now, we will prove the statement for n = 1, that is, any positive integer can be written as a sum of distinct members of the series for n = 1.
For n = 1, we have only one term in the series, which is 1. Clearly, any positive integer can be written as a sum of distinct 1's.
Next, we assume that the statement is true for some positive integer k, that is, any positive integer can be written as a sum of distinct members of the series for n = k.
Now, we will prove that the statement is also true for k + 1, that is, any positive integer can be written as a sum of distinct members of the series for n = k + 1.
Since any positive integer can be written as a sum of distinct members of the series for n = k, we can express (k + 1) as the sum of distinct members of the series for n = k and add the next term in the series, which is 2 times the last term.
Let the sum of distinct members of the series for n = k that add up to k + 1 be denoted as S. Then, we have:
(k + 1) + 2 x last term in S = S + last term in S + 2 x last term in S
= S + 3 x last term in S
= sum of first (k+1) terms of the series
Therefore, we can express (k + 1) as the sum of distinct members of the series for n = k + 1, which completes our induction step.
Hence, by mathematical induction, we have proven that any positive integer can be written as a sum of distinct members of the given series.
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help me quickyly pleaseee
Answer:
It is 32:200 for the 2nd row last one
Answer:
It is 32:200 for the 2nd row last one
When a
-5and b
3, the value of the expression is __
the correct answer is 8
Which scenario shows a value of 0. 4? select all that apply
Options B and C, Utilizing basic fractions, the qualities scenario displays a result of 0. 4 Jesse completed 40 out of 100 arithmetic problems and rode his bike for 4 of the 10 kilometers.
We are seeking a scenario that corresponds to a value of 0.4 or 40% among the possibilities mentioned, which represent various sections or fractions of a total.
Jesse rode his bike 4 out of the 10 miles in option B, which is equal to 0.4 or 40%.
Similarly, Jesse completed 40 of the 100 arithmetic problems in option C, which is likewise 0.4 or 40%. The other choices don't correspond to a 0.4 value.
A fraction of 2/3, or 0.666, is represented by choice A, a fraction of 4/100, or 0.04, by option D, and a fraction of 1/2, or 0.5, by option E.
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The question is -
Which of the following scenarios shows a value of 0.4? Select all that apply.
A. Jesse sold 40 out of 60 items at a garage sale.
B. Jesse rode 4 out of 10 miles on his bike.
C. Jesse finished 40 out of 100 math problems.
D. Jesse ate 4 out of 100 jellybeans.
E. Jesse returned 4 out of 8 library books.
What are the roots of the equation x²
14x + 53 = 0 in simplest a + bi form?
Answer:
The answer is 7±2i
Step-by-step explanation:
THIS IS ONE HUNDRED PERCENT CORRECT. My teacher told me. So the symbol between them is like an underscore an a plus in one. I cant type is that easy so I tried my best.
. Becky won $108,000 by coming in first place at a chess tournament, and she has the option of receiving 4 quarterly payments of $27,000, with the first payment in 3 months, or 1 lump-sum payment of $108,000 occurring in 12 months. Once she receives her money, she plans on putting it in a savings account paying simple interest at an annual interest rate of 8.8% calculated quarterly. Becky's financial adviser told her that she'll "lose" money if she takes the lump-sum payment, and Becky wants to calculate how much she'll "lose."
Part I: What is the periodic interest rate offered by Becky's savings account?
Part II: For her first payment of $27,000 occurring in 3 months, how many quarters will Becky be able to have the money in the bank before the lump-sum payment would have occurred? How much will Becky earn in interest on her first payment during this time?
Part III: For her second payment of $27,000 occurring in 6 months, how many quarters will Becky be able to have the money in the bank before the lump-sum payment would have occurred? How much will Becky earn in interest on her second payment during this time?
Part IV: For her third payment of $27,000 occurring in 9 months, how many quarters will Becky be able to have the money in the bank before the lump-sum payment would have occurred? How much will Becky earn in interest on her third payment during this time?
Part V: How much will Becky earn in interest on all the payments combined? This is how much money she'll "lose" by taking the lump-sum payment.
(i) 2.2% is the periodic interest rate offered by Becky's savings account
(ii) Becky earn $27,000 in interest on her first payment during this time
(iii) Becky earn $1,782 in interest on her second payment during this time
Part I:
Given that the savings account is paying simple interest at an annual interest rate of 8.8% calculated quarterly.
Then the periodic interest rate offered by Becky's savings account is given by 8.8% / 4 = 2.2%
Part II:
Given that the first payment of $27,000 is occurring in 3 months, then Becky will be able to have the money in the bank for 3 quarters before the lump-sum payment would occur
Part III:
Given that Becky's first payment of $27,000 will be in her account for 3 periods at a simple interest of 2.2% per quarter.
The amount Becky will earn in interest on her first payment during this period is given by:
I = (P*R*T) / 100
I = (27,000 * 2.2 * 3) / 100
I = $1,782
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Which of these graphs represents a function?
Answer:
C
Step-by-step explanation:
Each x value only corresponds with 1 y value
Khan academy is just ♂️ I WANNA CRYY
Answer:
h = 14 units
Step-by-step explanation:
Given:
Area of parallelogram = 84 units²
base length = 6
height = h
Required:
The missing height
SOLUTION:
Area of parallelogram = base × height
Plug in the values into the equation
Thus:
84 = 6 × h
84 = 6h
Divide both sides by 6
84/6 = 6h/6
14 = h
h = 14 units
The distance between Boats 2 and 3 is 50 miles. Given the image at below, determine the distance between Boat 1 and Boat 3. Вoat 1 16 miles Boat 3 20 miles Boat 2
The distance between the boat 1 and boat 3 is 34 miles if the distance between Boats 2 and 3 is 50 miles.
What is a right-angle triangle?It is a triangle in which one of the angles is 90 degrees and the other two are sharp angles. The sides of a right-angled triangle are known as the hypotenuse, perpendicular, and base.
The distance between boat 2 and boat 3 = 50 miles
Let's suppose the point is A between the boat 2 and boat 3
Distance between boat 3 and point A = 50 - 20 = 30 miles
As we can see in the figure, it is a right angle triangle.
From the Pythagoras theorem
Distance between the boat 1 and boat 3 = √(30² + 16²) = 34 miles
Thus, the distance between the boat 1 and boat 3 is 34 miles if the distance between Boats 2 and 3 is 50 miles.
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y = x3 + 5 what function family is it in?
Based on the information marked in the diagram, AMNP and AQRS must be
congruent.
N
R
ма
P
A. True
B. False
Answer:
Yes, it is true by AAS theorem.
The triangles ΔMNP and ΔQRS are congruent triangles
What are Congruent Triangles?Transformations change the size or position of shapes. Congruent shapes are identical, but may be reflected, rotated or translated. Scale factors can increase or decrease the size of a shape. Congruent Triangles simply mean the triangles that possess the same size and shape
The three sides are equal (SSS: side, side, side)
Two angles are the same and a corresponding side is the same (ASA: angle, side, angle)
Two sides are equal and the angle between the two sides is equal (SAS: side, angle, side)
A right angle, the hypotenuse and a corresponding side are equal (RHS, right angle, hypotenuse, side)
Given data ,
Let the first triangle be ΔMNP
Now , let the second triangle be ΔQRS
where the measure of angle ∠MNP = measure of angle ∠QRS = 90°
And , the measure of side NP = measure of side RS
And , the measure of ∠NPM = measure of angle ∠RSQ
So , two angles are the same and a corresponding side is the same (ASA: angle, side, angle)
Hence , the triangles are congruent by ASA theorem
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find the sum of the series. [infinity] (−1)n2n 42n(2n)! n = 0
Using the power series expansion of cos(x) to find the sum of this series. Recall that:
cos(x) = ∑[n=0, ∞] (-1)^n (x^(2n)) / (2n)!
Comparing the given series to the power series expansion of cos(x), we have:
(-1)^n 2^(2n) / (2n)! = (-1)^n 42^n (2n)! / (2n)!
Therefore, cos(x) = ∑[n=0, ∞] (-1)^n (x^(2n)) / (2n)! = ∑[n=0, ∞] (-1)^n 2^(2n) / (2n)! = ∑[n=0, ∞] (-1)^n 42^n (2n)! / (2n)!
Setting x = 4 in the power series expansion of cos(x), we get:
cos(4) = ∑[n=0, ∞] (-1)^n (4^(2n)) / (2n)! = ∑[n=0, ∞] (-1)^n 2^(2n) / (2n)!
Therefore, the sum of the given series is cos(4) / 42 = cos(4) / 1764.
Hence, the sum of the series is cos(4) / 1764.
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