Chase bought a pair of athletic shoes on sale for $38.85. The original price was $57.79. How much money did he save buying them on sale?
A.
$18.94
B.
$19.94
C.
$29.94
D.
$96.94
Answer:
A. 18.94
Step-by-step explanation:
57.79 (Original Price) - 38.85 (Sale Price) = 18.94 (Difference)
There are 85 students in a college mathematics class. Five students are
chosen to work on a project together. How many different groups of five
students are there in this class?
Answer:
17
Step-by-step explanation:
85/5=17
If the mean absolute deviation is a really
large number, then what does that mean about
the data set?
Answer:
The data is more spread out so their is a greater variability in the data.
Step-by-step explanation:
The Mean absolute deviation is large, then the data is more spread out and there is greater variability in the data.
What is mean absolute deviation?Mean absolute deviation is "collected data set is the average of absolute deviations from the center point of the data set".
According to the question,
Formula for Mean absolute deviation = summation of ( absolute value of xₙ - x⁻ divided by number of data values), where ' xₙ' is the input data values and 'x⁻ ' is mean of the given data values .
When the mean absolute deviation is large number then the data spread out more and the variability is greater in data.
Hence, the Mean absolute deviation is large then there is greater variability in the data.
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Which statement about the ordered pairs (2, -9) and (3,6) is true for the equation 5x - y/3 = 13?
A) (3, -6) is a solution to the equation.
B) Neither ordered pair is a solution.
C) (2, -9) is a solution to the equation.
D) Both ordered pairs are solutions.
Answer:
C) (2, -9) is a solution to the equation.
Step-by-step explanation:
To find if both or one point is the solution to the equation, substitute the x and y-values of both points into the equation to find which one makes a true and correct statement (the answer).
For (2, -9):
[tex]\sf5x - \frac{y}{3} = 13\\\\5(2) - \frac{-9}{3} = 13\\\\10-(-3)=13\\\\10+3=13\\\\ \boxed{13=13}\\\\\ \textsf{This is a true statement}\\\textsf{This means that (2, -9) is a solution to 5x - y/3 = 13}[/tex]
For (3, -6);
[tex]\sf5x - \frac{y}{3} = 13\\\\5(3) - \frac{-6}{3} = 13\\\\15-(-2)=13\\\\15+2=13\\\\ \boxed{17=13}\\\\\ \textsf{This is not a true statement}\\\textsf{This means that (3, -6) is not a solutions to 5x - y/3 = 13}[/tex]
Therefore, the correct answer is C
Hope this helps!
2,5,8,...
Find the 41st term.
Answer:
Step-by-step explanation:
hello :
this is the arithmetic -sequence because : 8-5=5-5=3 (comon dif)
An =A1+(n-1)r calculate......... (A1=2 and r=3 and n=41) continu...
Answer:
122
Step-by-step explanation:
Can I help someone for brainiest?
(MATH ONLY)
answer this question with link to question
Suppose the confidence interval (0. 6358, 0. 7532) represents the proportion of Skyline College students who say math is their favorite subject. A. Based on the confidence interval, is it likely 60% of Skyline College students say math is their favorite subject? No, 0. 60 is not contained in the interval Yes, 0. 60 is not contained in the interval Yes, all the interval values are greater than 0. 60 b. Based on the confidence interval, does it appear that more than 60% of Skyline College students say math is their favorite subject? Yes, all the interval values are greater than 0. 60 Yes, 0. 60 is not contained in the interval No, 0. 60 is not contained in the interval c. Based on the confidence interval, does it appear that fewer than 60% of Skyline College students say math is their favorite subject? Yes, all the interval values are greater than 0. 60 No, 0. 60 is not contained in the interval No, all the interval values are greater than 0. 60
Considering the confidence interval, the interpretation regarding wheter 60% of Skyline College students say math is their favorite subject is:
A. No, 0. 60 is not contained in the interval.
B. Yes, all the interval values are greater than 0.60.
C. No, all the interval values are greater than 0.60.
What is the interpretation of a x% confidence interval?It means that we are x% confident that the population parameter(mean/proportion/standard deviation) is between a and b.
In this problem, the confidence interval for the proportion of students who say math is their favorite subject is (0.6358, 0.7532).
Since the entire interval is above 0.6, and it does not contain 0.6, the correct answer for each question is given as follows:
A. No, 0. 60 is not contained in the interval.
B. Yes, all the interval values are greater than 0.60.
C. No, all the interval values are greater than 0.60.
More can be learned about confidence intervals at https://brainly.com/question/25890103
Evaluate (2 minus 5 i) (p + q) (i) when p = 2 and q = 5 i.
29 i
29 i - 20
- 21 i
29
DARIO is a regular pentagon, RIP is an equilateral triangle, and EIOU is a square.
The area of the shaded region will be equal to the (area of the hexagon - area of pentagon) + (area of a square - area of equilateral triangle).
How to explain the shape?From the complete question, the area of the shaded region 1 will be:
= Area of regular hexagon - Area of regular pentagon
The shaded region 2 will be:
= Area of a square - Area of equilateral triangle
Therefore, the area of the shaded region will be equal to the (area of the hexagon - area of pentagon) + (area of a square - area of equilateral triangle).
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Is FGH ~ JKL? If so, identify the similarity postulate or theorem that applies.
Answer: D
Step-by-step explanation:
There are two pairs of congruent angles.
The two triangles FGH and JKL are similar to each other by Angle-Angle property. Hence, option D is correct.
What is the similarity?If two objects are having the same shape then they will be termed as similar. So in mathematics, if two figures have the same shapes, lines or angles then they are called similar.
In the given figure we can see that the two triangles FGH and JKL have two angles equal that is ∠f =∠J = 30° and ∠L = ∠H =55°. Two angles are similar then the triangles are similar.
Hence, option D is correct.
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Benjamin’s garden is shaped like a rhombus the area of the garden is 336 ft. The height of the rhombus that represents his garden is 16 feet what is the base of the rhombus
Answer: 21 ft
Step-by-step explanation:
i do not know this answer
Answer:
15 miles
Use the Pythagoras theorem
Answer: 15
Step-by-step explanation:
Let's start by stating what we are given
The perimeter is 36
One side length is 12
And the other given side is 9
Finally we have an unknown side x
The value of all the sides added together is the perimeter.
So add all the sides
12+9+x=36
21+x=36
Subtract both sides by 21
21-21+x=36-21
x=15
The lengths of two sides of a triangle are shown.
Side 1: 3x^2 − 2x − 1
Side 2: 9x + 2x^2 − 3
The perimeter of the triangle is 5x^3 + 4x^2 − x − 3.
Part A: What is the total length of the two sides, 1 and 2, of the triangle? Show your work.(4 points)
Part B: What is the length of the third side of the triangle? Show your work. (4 points)
Part C: Do the answers for Part A and Part B show that the polynomials are closed under addition and subtraction? Justify your answer. (2 points)
Answer:
See below ↓↓↓
Step-by-step explanation:
Part A
Total length = Side 1 + Side 2
3x² - 2x - 1 + 9x + 2x² - 33x² + 2x² + 9x - 2x - 1 - 35x² + 7x - 4Part B
Length of 3rd side = Perimeter - [Side 1 + Side 2]
L = 5x³ + 4x² - x - 3 - [5x² + 7x - 4]L = 5x³ + 4x² - x - 3 - 5x² - 7x + 4L = 5x³ - x² - 8x + 1Part C
Yes, as the resulting polynomial has a finite value we can conclude that polynomials are closed under addition and subtraction.
Part A: The total length of the two sides of the triangle is [tex]5x^2+7x-4[/tex]. This is obtained by adding the given two sides.
Part B: The length of the third side is [tex]5x^3-x^2-8x+1[/tex]. This is obtained by subtracting the sum of two sides from the perimeter of the triangle.
Part C: Yes, the Part A and Part B answers show that the polynomials are closed under addition and subtraction. This is because the expressions have like terms.
Polynomials:These are the expressions that are formed with constants, coefficients, and variables. based on the highest degree of the variable in the expressions, the polynomials are classified into many types.Calculation:Given that, a triangle has two sides of length [tex]3x^2-2x-1[/tex] and [tex]9x+2x^2-3[/tex]
The perimeter of the triangle is [tex]5x^3+4x^2-x-3[/tex]
Part A:
To find the total length of two sides, adding the two side
⇒ [tex](3x^2-2x-1)+9x+2x^2-3\\[/tex]
⇒ [tex]5x^2+7x-4[/tex]
(adding the like terms w.r.t their sign)
Part B:
To find the length of the third side, subtract the sum of two sides from the perimeter.
⇒ [tex](5x^3+4x^2-x-3)-(5x^2+7x-4)[/tex]
⇒ [tex]5x^3-x^2-8x+1[/tex]
Part C:
From Part A and Part B, it is proved that the polynomials undergo addition and subtraction. Hence, it is justified.
Therefore, Part A, Part B, and Part C were obtained.
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What is an equation of the line that passes through the points (4, 7) and (-3, 7)?
Step-by-step explanation:
Slope= 7-7/-3-4
0/-7
0
y-7 = 0(x-4)
y-7= 0
y=7MARK ME AS BRAINLISTA gas tank holds exactly 14 gallons of gas. if the tank is 2/3 empty, how many gallons remain in the tank? (help!)
Answer:
4 and 2/3 is the answer
Step-by-step explanation:
14/3= 4 and 2/3
Compare by finding the LCM of denominator 3/8 and 3/4
LCM = 8
[tex]\frac{3}{8}[/tex] < [tex]\frac{6}{8}[/tex]
Step-by-step explanation:Finding the LCM is useful to compare the size of 2 different fractions.
LCM
First, let's define LCM. LCM stands for least common multiple. A multiple is a product of 2 numbers. For example, the multiples of 4 include 4, 8, 12, etc. The LCM of 4 and 8 is 8.
Comparing
Using the LCM we can find new fractions with the same denominator. These fractions are [tex]\frac{3}{8}[/tex] and [tex]\frac{6}{8}[/tex]. From this, we can tell that 6/8 is larger than 3/8.
if you answer this. i will forever love you. foreverrrrrrr
Answer:
Step-by-step explanation:
The Mean Value Theorem says that for continuous and differentiable function f(x) on the interval ( a, b ) there is number c ∈ ( a, b ) that
f'(c) = [tex]\frac{f(b)-f(a)}{b-a}[/tex] ....... (1)
~~~~~~~~~~~~~~~~
f(5) = 44
f(0) = - 1
5 - 0 = 5
f'(x) = 2x + 4 ⇒ f'(c) = 2c + 4
2c + 4 = [tex]\frac{44+1}{5}[/tex]
2c + 4 = 9 ⇒ c = [tex]\frac{5}{2}[/tex] (D).
What is the area of this rectangle?
16 sq m
18 m
14 sq m
9 m
Need help with this math question
Answer:
SAS
Step-by-step explanation:
The sides are equal on the same side
the angles are also equal
and the other sides too
A supervisor finds the mean number of miles that the employees in a department live from work. he finds x overbar = 29 and s = 3.6. which mileage is within a z-score of 1.5? 21 miles 24 miles 36 miles 41 miles
A supervisor finds the mean number of miles that the employees in a department live from work is 24. Then the correct option is B.
What is a z-score?The z-score is a numerical measurement used in statistics of the value's relationship to the mean of a group of values, measured in terms of standards from the mean.
The z-score is given as
[tex]z = \dfrac{x-\mu }{s}\\[/tex]
x = 29
s = 3.6
z = 1.5
Then the mean will be
[tex]1.5 = \dfrac{29 - \mu }{3.6}\\\\\mu = 29 - 5.4\\\\\mu = 23.6 \approx 24[/tex]
More about the z-score link is given below.
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please help me with this Pythagorean Theorem
Answer:
[tex]\sqrt{22.25}[/tex]
Step-by-step explanation:
4 ^ 2 is 16
2.5 ^ 2 is 6.25
16 + 6.25 is 22.25
The square root of 22.25 is undefined so...
[tex]\sqrt{22.25}[/tex]
PLS HELP THIS IS DUE TOMMROW
Write the prime factorization of the
numerator and denominator of this
fraction. Then reduce the fraction.
420
630
(Question 18 on the pic)
I WILL MARK AS BRAINLYEST AND GIVE POINTS
Answer:
Reducing 420/630
420/630 = (?)
420/630 = (2 x 2 x 3 x 5 x 7)/(2 x 3 x 3 x 5 x 7) How i got this is explained at the bottom*
= 2/3
420/630 = 2/3
The simplest form of 420/630 is 2/3
2/3 is the lowest term of 420/630.
Prime FACTORING:
This should help for visuals for 420:
420
| \
210 2
| \
105 2
| \
35 3
| \
7 5
This should help for visuals for 630:
630
| \
315 2
| \
105 3
| \
35 3
| \
7 5
the price of 5 boxes of crackers at the store can be represented by the equation $17.75 divide 5 = k what would be the cost of 7 boxes of crackers
Answer:
24.85
Step-by-step explanation:
17.75/5 = 3.55
3.55 x 7 = 24.85 :)
Have an awesome day!
Please rate and mark brainliest!
PLEASE HELP WITH MATH!!
If m/n = 5, then what is the value of m^2 - 25n^2?
=============================================
Work Shown:
m/n = 5
m = 5n
m^2 - 25n^2 = (m)^2 - (5n)^2
m^2 - 25n^2 = (m-5n)(m+5n)
m^2 - 25n^2 = (5n-5n)(5n+5n)
m^2 - 25n^2 = (0n)(10n)
m^2 - 25n^2 = (0)(10n)
m^2 - 25n^2 = 0
-----------------
Another approach:
m/n = 5
m = 5n
m^2 = (5n)^2
m^2 = 25n^2
m^2 - 25n^2 = 0
-----------------
Consider the example that m = 10 and n = 2.
We can see that m/n = 10/2 = 5
Furthermore,
m^2 - 25n^2 = 10^2 - 25*2^2 = 100 - 100 = 0
I'll let you try out other examples.
What is the area of the polygon? 30cm 21cm 14cm 46cm
Answer:
1,044
Step-by-step explanation:
14 x 46 = 644
16 x 25 = 400
644 + 400 = 1,044
look at attachment hurry
Answer:
the top one on the right
Step-by-step explanation:
i used desmos graphing calculator
What’s the area of the circle?
Answer:
153.86
Step-by-step explanation:
The area of a circle is π[tex]r^2[/tex].
Since the radius of that circle, and we are using 3.14 for π, we get:
[tex]3.14 * 7^2 = 153.86[/tex]
Answer:
Technically you should get :153.94
But for your answer choice its the 2nd one.
Step-by-step explanation:
area=πr^2
Which means that you would plug in 7 for r.
Which means it would look like this: area=π7^2
Next you would square 7 which comes out to 49
Lastly multiply 49 time π (3.14)
A town population was 6000 people last year. The population this year is expected to increase by 4%. By how many people is the population expected to increase this year?
What is the measure of angle 8?
Answer:
32
Step-by-step explanation:
First, let's find angle 6 as we will need that to find angle 8.
angle 6 = 180 - 122 = 58(straight line angles equal to 180)
now sum of angles in a triangle = 180
so angle 8 = 180 - 90 - 58
= 32
Hope it helps:)
Answer:
32°
Step-by-step explanation:
We know that the exterior angle of the triangle is equal to the sum of the interior opposite angles.
Therefore,
< 1 + < 8 = 122°
Also, given that,
<1 = 90°
So,
< 1 + < 8 = 122°
90° + < 8 = 122
< 8 = 32°
