This is my fourth time reposting this question please answer the question I need help
Answer:
here they are.
Step-by-step explanation:
Ok so the mean is the average of all the data. So we add up all the numbers, then divide that by the quantity of numbers.
For week one, thats 48,52,52,53,60,63,65 which equals 393, then we divide that by 7, and get 56.142857142857, so we round that to 56.1
Week 2 is 54,55,56,59,60,62,63 which is 409 divided by 7, and thats 58.428571428571 rounded is 58.4
Next up is the MAD (mean absolute deviation) thats the average distance between each value and the mean.
Week 1 MAD: 5.5918367346939 5.5
Week 2 MAD: 2.9387755102041 2.9
YEAR 9 MATHS PLEASE HELP ME
The pictures are in order - first being dwayne's and second being ivor's Dwayne Pipes uses this formula to work out the cost of a plumbing job in pounds.
Ivor Wrench uses this formula to work out the cost of a plumbing job in pounds. A job of x hours costs the same with Dwayne and Ivor.
Set up and solve an equation to work out x .
X=.........
The solution is: x = 10/3 hours
What is the equations with one variable?
An equation with one variable is a mathematical statement that involves an unknown quantity represented by a letter, usually x, and an equal sign, where the expressions on both sides of the equal sign have the same value.
We need to set up an equation using the given information to solve for x.
Let's start with Dwayne's formula:
Cost = 30x + 50
And Ivor's formula:
Cost = 45x
Since a job of x hours costs the same for both Dwayne and Ivor, we can set their formulas equal to each other:
30x + 50 = 45x
Simplifying and solving for x:
50 = 15x
x = 50/15
x = 10/3 hours
Therefore, the solution is: x = 10/3 hours
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Only do question 17
50 points
Topic: Percentage
Answer:
see below
Step-by-step explanation:
Cedarville
Year 1
1200 * 8% = 96 people
At the end the population is 1296
Year 2
1296 * 7% =90.72
1296+90.72 =1386.72 people
Pinedale
1200*15%=180
1200+180 = 1380
Cedarville has more people at the end of 2 years by 6.72 people
Please help me! “What is the equation of the vertical line through (-5, -2)?”
Answer:
x= -5
Step-by-step explanation:
Vertical lines go up and down so they have the same x value
x= -5
Marlye posted a story on her blog. On the first day there were 80 responses and on the second day there were 180 responses. What percent is the increase 100 of the original number of responses
Answer:
125%
Step-by-step explanation:
Since we already know that there was an increase of 100 responses, we have to divide 100 by 80 and multiply by 100:
100/80 * 100
= 125%
There was a 125% increase in the number of responses.
Answer:
125%
Step-by-step explanation:
Edg. 2020
6+9 is same to. This question is tricky
Thanks
Answer:
9+6
Step-by-step explanation:
6 + 9 is similar to 9+6 because they both equal 15
Answer:
[tex]15[/tex]
Step-by-step explanation:
[tex]6 + 9 = 15[/tex]
For and example ,u have 6 apples with you and your friend gave more 9 apples to you. Now think how many apples are there with you. there are 15 apples.
hope this helps
brainliest appreciated
good luck! have a nice day!
Some students spend these amounts in a cafe. £2.50, £3, £1, £4, £0.50,
£3, £1, £1, £2.50, £1. What is the range of the data?
Step-by-step explanation:
For finding range we will arrange it from least to greatest
0.50 1 1 1 1 2.50 2.50 3 4
So range = 4 - 0.50 = 3.50
Please answer correctly !!!!!!!! Will mark brainliest !!!!!!!!!!
Answer:
Step-by-step explanation:
C
Simplify (12a5−6a−10a3)−(10a−2a5−14a4) . Write the answer in standard form
Answer:
[tex]=14a^5+14a^4-10a^3-16a[/tex]
Step-by-step explanation:
[tex]\left(12a^5-6a-10a^3\right)-\left(10a-2a^5-14a^4\right)\\\mathrm{Remove\:parentheses}:\quad \left(a\right)=a\\=12a^5-6a-10a^3-\left(10a-2a^5-14a^4\right)\\-\left(10a-2a^5-14a^4\right):\quad -10a+2a^5+14a^4\\-\left(10a-2a^5-14a^4\right)\\\mathrm{Distribute\:parentheses}\\=-\left(10a\right)-\left(-2a^5\right)-\left(-14a^4\right)\\Apply\:minus-plus\:rules\\-\left(-a\right)=a,\:\:\:-\left(a\right)=-a\\=-10a+2a^5+14a^4\\=12a^5-6a-10a^3-10a+2a^5+14a^4[/tex]
[tex]\mathrm{Simplify}\:12a^5-6a-10a^3-10a+2a^5+14a^4:\quad 14a^5+14a^4-10a^3-16a12a^5-6a-10a^3-10a+2a^5+14a^4\\Group\:like\:terms\\=12a^5+2a^5+14a^4-10a^3-6a-10a\\\mathrm{Add\:similar\:elements:}\:12a^5+2a^5=14a^5\\=14a^5+14a^4-10a^3-6a-10a\\\mathrm{Add\:similar\:elements:}\:-6a-10a=-16a\\=14a^5+14a^4-10a^3-16a[/tex]
Malik's arts and crafts shop has a bolt of crimson velvet 32 meters long. A customer came in during the morning and bought 120 centimeters of the velvet. Another customer bought an additional 14 meters during the afternoon. How much crimson velvet does Malik's shop have left? Write the answer in centimeters.
The length of crimson velvet bolt which Malik's shop has left is 1680 centimeters.
Recall :
1 meter = 100 centimeters
Original Length of Bolt = 32 meters = (32 × 100) = 3200 centimeters
Total length of bolt purchased :
Morning purchase = 120 centimeters
Additional purchase = 14 meters = (14 × 100) = 1400 centimeters
Total length purchased = (120 + 1400) = 1520 centimeters
The length of crimson velvet bolt left :
(Original length - total length purchased)
(3200 - 1520) centimeters = 1680 centimeters
Hence, Malik's shop has 1680 centimeters of Crimson velvet bolt left
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HELP PLEAES I NEED IT NOW
Square tiles (12 inches by 12 inches) are used to cover a rectangular countertop containing 40 square feet. How many tiles are needed to cover the countertop?
Answer:
40 square feet tiles.
Step-by-step explanation:
It may help to have a visual. Anyways, if the countertop contains 40 square feet, that means the area is 40 square feet. Keep in mind that 12 inches = 1 foot. So if we have 1 foot squared tiles and we need to find how many tiles it takes to cover the countertop, we use division. 40 square feet ÷ 1 square feet tiles = 40 square feet tiles.
Answer:
It would take 40
Step-by-step explanation:
12 inches = 1 foot
1 foot by 1 foot square tiles
And 40 square feet so
1 x 40 = 40
Have a good day. :)
Hope this helps!
(brainliest would be appreciated)
Will mark brainliest!!!
A 3-pound piece of salami costs $14.99. A 12-ounce package of the same sliced salami costs $4.39. What is the difference in price per 4-ounce serving?
Answer
10.60$
Step-by-step explanation:
Mixed Review for Finding Slope
Calculate the slope of the line that contains the following points. Leave answers as fractions - BUT reduce
your fractions as much as possible!!!!!!! SHOW ALL WORK!!!
1) (4,5) and (-4,3)
2) (-2,-4) and (6,7)
3) (2, -4) and (10,12) 4) (1/2,2) and (1,2/3) 5) (1/4,5) and (5/4,12)
Answer:
1) slope of the line [tex]m = \frac{1}{4}[/tex]
2) slope of the line [tex]m = \frac{11}{8}[/tex]
3) slope of the line m =2
4) slope of the line [tex]m = \frac{-8}{3}[/tex]
5) slope of the line m =7
Step-by-step explanation:
1)
Given points are (4,5) and (-4,3)
slope of the line Formula
[tex]m = \frac{y_{2} - y_{1} }{x_{2}-x_{1} }[/tex]
[tex]m = \frac{3 - 5 }{-4-4 } = \frac{-2}{-8} = \frac{1}{4}[/tex]
[tex]m = \frac{1}{4}[/tex]
2)
Given points are (-2,-4) and (6,7)
slope of the line Formula
[tex]m = \frac{y_{2} - y_{1} }{x_{2}-x_{1} }[/tex]
[tex]m = \frac{7 - (-4) }{6-(-2) } = \frac{11}{8}[/tex]
[tex]m = \frac{11}{8}[/tex]
3)
Given points are (2, -4) and (10,12)
slope of the line Formula
[tex]m = \frac{y_{2} - y_{1} }{x_{2}-x_{1} }[/tex]
[tex]m = \frac{12 - (-4) }{10-(2) } = \frac{16}{8} =2[/tex]
[tex]m = 2[/tex]
4) Given points are
(1/2,2) and (1, 2/3)
slope of the line Formula
[tex]m = \frac{y_{2} - y_{1} }{x_{2}-x_{1} }[/tex]
[tex]m = \frac{\frac{2}{3} - (2) }{1-(\frac{1}{2} ) } = \frac{\frac{-4}{3} }{\frac{1}{2} }[/tex]
[tex]m = \frac{-8}{3}[/tex]
5)
Given points are
(1/4,5) and (5/4 , 12)
slope of the line Formula
[tex]m = \frac{y_{2} - y_{1} }{x_{2}-x_{1} }[/tex]
[tex]m = \frac{12-5}{\frac{5}{4} -\frac{1}{4} } = \frac{7}{\frac{4}{4} } = 7[/tex]
[tex]m = 7[/tex]
After school, Marcus ran 3.2km and Cindy ran 1.95km. Who ran farther ? How much father?
Answer:
Marcus; 1.25 km
Step-by-step explanation:
Marcus ran farther than Cindy because 3.2 km is greater than 1.95 km.
How much farther is:
3.2 - 1.95 = 1.25 km
He ran 1.25 km farther than Cindy.
The person who ran further is the person who ran more kilometers.
The person who ran more kilometers is Marcus which means that Marcus ran farther.
The distance he ran farther by is:
= Distance Marcus ran - Distance Cindy ran
= 3.2 - 1.95
= 1.25 km
In conclusion, Marcus ran farther by 1.25 km.
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You come home from Brian’s Orchard with a big brown bag of apples: 23 Granny Smiths, 14 Honey Crisp and 31 Red Delicious. What is the probability you reach in and pull out: a. one of each? b. 4 Honey Crisps c. 2 G. Smiths & 1 R. Delicious Please help I am really confused and my teacher won’t respond to my email
Answer:
a. Probability of Pulling one of each = 0.03175
b. Probability of Pulling 4 Honey Crisp = 0.001797
Probability of 2 G.Smith = 0.1144
Probability of 1 Red Delicious = 0.4559
Step-by-step explanation:
Given
Granny Smiths = 23
Honey Crisp = 14
Red Delicious = 31
Required
- Probability of Pulling out one of each
- Probability of Pulling out 4 Honey Crisp; 2 Granny Smiths; 1 Red Delicious
First, the total number of apple needs to be calculated.
Total = Granny Smiths + Honey Crisp + Red Delicious
Total = 23 + 14 + 31
Total = 68
Probability of Pulling 1 of each
= P(Granny Smiths) and P(Henry Ford) and P(Red Delicious)
- Granny Smiths;
This is calculated by dividing number of Granny Smiths apples by total number of apples.
Probability = 23/68
Similarly,
Probability of Pulling Honey Crisp= Number of Honey Crisp divided by total
Probability = 14/68
Probability = 7/34
Probability of Pulling Red Delicious = Number of Red Delicious divided by total
Probability = 31/68
So, Probability of Pulling 1 of each = 23/68 * 7/34 * 31/68
Probability = 4991/157216
Probability = 0.03175
Probability of Pulling out 4 Honey Crisp;
= P(Honey) * P(Honey) * P(Honey) * P(Honey)
= (P(Honey))⁴
= (7/34)⁴
= 2401/1336336
= 0.001797
Probability of Pulling 2 Granny Smiths;
= P(Granny) * P(Granny)
= (P(Granny))²
= (23/68)²
= 529/4624
= 0.1144
Probability of 1 Red Delicious
= number of red delicious divided by total
= 31/68
= 0.4559
One card is drawn at random from a pack of 52 cards. What is the probability that the card drawn is a face card (Jack, Queen, and King only)?
A. 1/13
B. 1/4
C. 9/52
D. 3/13
Answer:
D, 3/13 simplified from 12/52
Step-by-step explanation:
the reason that it would be 3/13 is because its simplified from 12/52, which is 12 of the possibly of face cards over 52 the amount of cards in the deck, so the possibility was 12/52, but simplified would be 3/13 ! love you !
BE SAFE !!!! HOPE THIS HELPS!!!!
<3 <3 <3 <3 <3
The probability that the card drawn is a face card is 3/13.
Option D is the correct answer.
What is probability?It is the chance of an event to occur from a total number of outcomes.
The formula for probability is given as:
Probability = Number of required events / Total number of outcomes.
We have,
There are 3 face cards.
Number of jack = 4
Number of queen = 4
Number of king = 4
Total number of cards = 52
The probability that the card drawn is Jack.
= 4/52
The probability that the card drawn is Queen.
= 4/52
The probability that the card drawn is King.
= 4/52
The probability that the card drawn is a face card.
= 4/52 + 4/52 + 4/52
= 3 x 4/52
= 3 x 1/13
= 3/13
Thus,
The probability that the card drawn is a face card is 3/13.
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Triangle XYZ is shown, where n ≥ 5. Triangle X Y Z is shown. The length of side X Y is n + 4, the length of side Y Z is 2 n, and the length of side Z X is n minus 2.
Answer:
The longest side of the triangle is YZ, the shortest side is ZX, the largest angle is ∠X and the smallest angle is ∠Y.
Step-by-step explanation:
The lengths of the sides of the triangle XYZ are as follows:
XY = n + 4
YZ = 2n
ZX = n - 2
According to the triangle inequality theorem, the sum of two sides of a triangle is always greater than the third side.
Then,
XY < YZ + ZX ⇒ n + 4 < 2n + n - 2 ⇒ n + 4 < 3n - 2 ⇒ 2n > 6 ⇒ n > 3
YZ < XY + ZX ⇒ 2n < n + 4 + n - 2 ⇒ 2n < 2n + 2 ⇒ 0 < 2
ZX < XY + YZ ⇒ n - 2 < n + 4 + 2n ⇒ n - 2 < 3n + 4 ⇒ 2n > -6 ⇒ n > -3
It is provided that n ≥ 5.
Then the sides of the triangle are:
XY = n + 4 ≥ 5 + 4 = 9
YZ = 2n ≥ 2 × 5 = 10
ZX = n - 2 ≥ 5 - 2 = 3
So, the longest side of the triangle is YZ. And the shortest side is ZX.
The largest angle of a triangle is opposite to the longest side.
The angle opposite to YZ would be X. So, the largest angle is ∠X.
The smallest angle of a triangle is opposite to the shortest side.
The angle opposite to ZX would be Y. So, the smallest angle is ∠Y.
Thus, the longest side of the triangle is YZ, the shortest side is ZX, the largest angle is ∠X and the smallest angle is ∠Y.
PLEASE HELP
What type of line is the graph of 4x + y=-3?
1) Vertical
2) Horizontal
3) Rising
4) Falling
Answer: Falling
Step-by-step explanation:
Once you rearrange this equation into y-intercept form and you get y = -4x-3, you then graph the line and the line appears to be decreasing down.
10 points
Twenty Year 7 students recorded the number of times in a week that
they visited Wikipedia for information.
10 7 4 5 6 5 9 7 6 8
7 7 5 5 6 8 8 7 10
8
Find the modal number of visits.
4 visits
O 5 visits
6 visits
O 7 visits
Step-by-step explanation:
The mode is 7 because it is 5 times
Which graph best represents the linear function y = 3x -1
Answer:
c
Step-by-step explanation:
BRAINLIEST ASAP! PLEASE HELP :) A
break-even analysis includes operating expenses and total monthly debt payments, plus :
school costs
gross profit margin
net profit margin
zero term margin.
12. Determine the rule of the quadratic functionſ
given the following information:
• When f(x) = ax^2+ bx+c, b2 = 4ac
• f(x) bigger than or equal to 0 for XER
• f(x) has an axis of symmetry of x = -5
• f(-1)=4
Answer:
f(x) = ¼ x² + ⁵/₂ x + ²⁵/₄
Step-by-step explanation:
b² = 4ac, so the discriminant is 0. That means the quadratic has a repeated root, which is the vertex.
f(x) has an axis of symmetry of x = -5. That means the x-coordinate of the vertex is -5.
So f(x) = a (x + 5)².
f(-1) = 4, so the value of a is:
4 = a (-1 + 5)²
4 = 16a
a = ¼
The function is f(x) = ¼ (x + 5)². Converting to standard form:
f(x) = ¼ (x² + 10x + 25)
f(x) = ¼ x² + ⁵/₂ x + ²⁵/₄
Please someone help
Answer:
cos is used if there is adjacent and hypotenuse
Help needed.......................
Answer: 7x^2+3y^2-4x
Choose the first option
Step-by-step explanation:
Ok, so let me show you how to do this.
First, distrubute the negative sign
12x^2-11y^2-13x-(5x^2-14y^2-9x)=
12x^2-11y^2-13x-5x^2+14y^2+9x
Now combine like terms
(12x^2-5x^2)=7x^2
(-11y^2+14y^2)=3y^2
(-13x+9x)=-4x
7x^2+3y^2-4x is the answer.
Slope and point on line of the equation y - 6= 3(x-5)
Easy claps
Answer: slope=3 and point is (5,6)
Step-by-step explanation: It's just basic prealgebra!
A line and two points are guaranteed to be coplanar if:
A. they don't lie in the same plane.
B. they lie in the same plane.
C. one point and the line are coplanar.
D. they are near each other.
Answer:
b
Step-by-step explanation:
ape x
Answer:
B. They lie in the same plane.
Step-by-step explanation:
Got Correct On ASSIST.
HELP!
Consider the below equation:
0.5x-7= sqrt(-5x+29)
Give 2 different ways to show that the equation does not have any solutions. One way must be solving algebraically, and the other way must be by graphing.
Answer:
The answer to this question can be described as follows:
Step-by-step explanation:
Given equation:
[tex]\bold{0.5x-7= \sqrt{(-5x+29)}}[/tex]
As in the given question the two ways to solve the equation can be defined as follows:
First way:
Let square the above-given equation then we will get:
[tex]\to (0.5x-7)^2= (\sqrt{(-5x+29)})^2\\\\\to (0.5x)^2 +7^2-2\times 0.5x\times 7= -5x+29\\\\\to 0.25x^2 +49- 7x= -5x+29\\\\\to 0.25x^2 - 7x+5x +49-29=0\\\\\to 0.25x^2 - 2x+20=0\\\\[/tex]
The calculated equation doesn't have any like term that's why it can't be factorised.
Second way:
after calculating the equation that is [tex]0.25x^2-2x+20=0[/tex], it graph is given in attachment please find.
An airplane is 32,000 feet above the ground begins descending at a rate 2,500
feet
per minute. Write an equation to model the situation. *
Answer:
32000-2500x, let x equal number of minutes.
Step-by-step explanation:
Answer:
[tex]y=-2,500x+32,000[/tex]
Step-by-step explanation:
x is the rate of the elevation per minute, so -2,500 feet every minute. And 32,000 is the start elevation.
Sarkis wants to draw a triangle with sides measuring 4 ft, 10 ft, and 16 ft. Which is true about Sarkis’s plan? Sarkis cannot draw a triangle with these side lengths. Sarkis can only draw one unique triangle with these side lengths. Sarkis can draw exactly two triangles with these side lengths. Sarkis can draw more than one triangle with these side lengths.
Answer:
SHE CANNOT pls mark brainleist
Step-by-step explanation:
If you use the Triangle Inequality Theorem, you will find that 4+10 equals 14, which is less than 16. It has to be greater than 16 to be a triangle.
Sarkis cannot draw a triangle with these side lengths. Therefore, option A is correct.
Given that, a triangle with sides measuring 4 ft, 10 ft, and 16 ft.
What are the conditions to construct a triangle?In the triangle, the sum of any two sides is always greater than the third side. The difference between any two sides of the triangle is always less than the third side.
Sarkis cannot draw a triangle with these side lengths. Therefore, option A is correct.
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Please answer correctly !!!!!!!!!!! Will mark BRIANLIEST !!!!!!!!!!!!
Answer:
25 million mosquitoes
Step-by-step explanation:
maximum possible number = 25