Answer:
slope = y^2- y^1 / x^2 - x^ 1
= -3 -2 / 1-1
= -5
y intercept = 2 and -3
If 4 men can paint a house in 12 days,
how long would it take 6 men to complete
the same task?
Answer:
2
Step-by-step explanation:
Divide 12 by 6 to get the answer.
Please help this is math it's my last question
Answer:
T_f?
This question doesn't make sense.
How is the longer side 7 when the shorter side is 15?
Here's your answer anyway:
82.5
Step-by-step explanation:
Help?? Please please
Answer:
................................
Answer:
23
Solving steps
We know x= -10-15y, so we can subtract it to the equation above
x = -10-15y
2x+5y=35
2(-10-15y) + 5y = 35
(Refer to the 1st image to solve for y)
Y = -11/5
We now know y= -11/5, so we can subtract it to the equation for x.
Y = -11/5
x = -10-15y
x = -10-15(-11/5)
(Refer to the 2nd and 3rd image to solve for x) (Make sure to look at both images first before writing something down)
x = 33 - 10
x = 23
Hopefully, everything was clear and concise. Please comment if you have any questions.
Days of absence of 50 employees in a firm in
a month:
3,2,4,6,2,5,8,1, 9, 10, 2,3,4,7,3,4,2,5,9,1,
2,4,5,8,1, 9, 10, 2,3,7,6, 1,9,1,0,2,3,2,3,4,
3,5,6,7,4,7,8,9,1, 10.
Answer:
1
Step-by-step explanation:
Does the image reflect over the x or y axis ?
Answer:
actually both
Step-by-step explanation:
have a great day
The heights of young American women, in inches, are approximately Normally distributed with mean μ and standard deviation σ = 2.4. If I want to construct a 99% confidence interval with a margin of error of no more than ± 1 inch, what is the smallest sample I can select?
The smallest sample size needed to construct a 99% confidence interval with a margin of error of no more than ±1 inch is 39.
The margin of error (E) for a confidence interval is described as:
E = z × (σ / √n)
where:
E is the desired margin of error
z is the z-score corresponding to the desired confidence level (in this case, 99% confidence level)
σ is the population standard deviation
n is the sample size
In this case, the margin of error is no more than ±1 inch, so E = 1 inch.
Now, determine the z-score corresponding to a 99% confidence level using a standard normal distribution table or statistical software.
For a 99% confidence level, the z-score is approximately 2.576.
Plugging in the known values into the margin of error formula,
1 = 2.576 × (2.4 / √n)
To solve for n, rearrange the formula as follows:
√n = (2.576 × 2.4) / 1
√n = 6.1824
n = (6.1824)²
n ≈ 38.16
Therefore, the smallest sample size needed to construct a 99% confidence interval with a margin of error of no more than ±1 inch is 39.
To learn more about the confidence interval;
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EFGH is translated 6 units to the left and 3 units up.
What are the coordinates of F’ ?
A. F’(6,-6)
B. F’(3,-9)
C. F’(-6,-6)
D. F’(-6,0)
Answer:
-6,0
Step-by-step explanation:
i just had this question
A translation is a transformation that moves every point in a figure in the same direction by the same amount. The coordinates of F' is (-6, 0).
What is translation?A translation is a transformation that moves every point in a figure in the same direction by the same amount. It is also a sort of transformation in which each point in a figure is moved the same distance in the same direction resulting in the same figure again.
Since the transformation can be defined as the introduction of a new set of mathematical coordinates that are declared to be different functions of the original coordinates.
Given a parallelogram EFGH that is been translated 6 units to the left and 3 units up.
Since the coordinates of F' is (0, -3). Therefore, the coordinates of F’ can be written as,
F = (0, -3)
F' = (0 - 6, -3 + 3)
F' = (-6, 0)
Hence, the coordinates of F' is (-6, 0).
Learn more about Translation:
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what's a good online graph maker?
Answer:
desmos
Step-by-step explanation:
Answer:
GeoGebra Classic its a little complacated but it works really well
Step-by-step explanation:
Fay has a lemonade stand.
She spends £50 on ingredients.
She sells each glass of lemonade for £1.40.
If she sells 40 glasses of lemonade, what is her total profit?
Answer:
6
Step-by-step explanation:
Answer:
6
6666666666666666666666666666666
HELP PLEASE!! WILL GIVE BRAINLIEST!!!
Answer:
Slope = 2 Y-Intercept = (0, 3)
Step-by-step explanation:
Slope : [tex]\frac{Rise}{Run}[/tex] which is [tex]\frac{y2 - y1}{x2 - x1}[/tex] from two points: point1 (x1 , y1) and point2 (x2, y2).
For the purpose of getting the slope I will be using point (0, 3) as point 1
and point (-3, -3) as point 2.
If you plug in 0 as x1, 3 as y2, -3 for x2, and -3 for y2:
[tex]\frac{-3 - 3}{-3 - 0}[/tex] = [tex]\frac{-6}{-3}[/tex] = 2
Y-Intercept: The y intercept is the point where the line is touching the y axis. Which in this graph, there is only point (0,3).
hi this is due in 10 minutes so im gonna dump some question you you :p
1. A cupcake recipe calls for 4 cups of flour and 2 cups of sugar. Angelica only has 3 cups of flour. How much sugar would she need to keep the ratio equivalent if she uses all the flour she has? Show your mathematical thinking below and then chose the amount of sugar she needs to use
2. Your parents are interested in the amount of sugar in two drinks. The apple juice has 216 grams of sugar for every 8 servings. The soda has 234 grams of sugar for every 9 servings.
3. The Workman's family car travels 165 miles in three hours. Their cousins' family car travels 150 miles in two hours. If the family reunion is 900 miles away for both families, and assuming both families travel at their same rate for the entire trip, who will arrive first? First you will need to find the speed at which each car travels. This is the unit rate - miles per hour
thats all, i dont have much points but here is what i have left :,)
Answer:
1. You need 1.5 cups of sugar because the ratio is that the flour is always double the sugar and 3/2 is 1.5
2. 27 grams of sugar per serving for apple juice and 26 grams of sugar per serving for soda
3. The workman's car goes 55 miles per hour and their cousins goes 75 miles per hour
Step-by-step explanation:
Find the perimeter of the polygon.
5 cm
6 cm
6 cm
8 cm
a.
25 cm
b. 20 cm
c.
30 cm
d. 28 cm
Answer:
The answer is A: 25 cm
Step-by-step explanation:
5+6+6+8=25
18 meters= how many centimeters
Answer:
1800
Step-by-step explanation:
can i have brainliets, please? hee hee
18m
to convert into cm;
=18x100
=1800cm
A container has 3 3/8
pounds of flour.
Mr. Wright gives each member of his cooking class 3/16
pound of flour, which empties the container.
How many people are in Mr. Wright’s class?
Answer:
18
Step-by-step explanation:
3=48/16
48/16 + 3/8 (6/16) = 54/16
54÷3=18
answer is 18 students
The volume of a cylinder with radius r and height his v = 7h
A barrel in the shape of a circular cylinder is 30 inches in diameter and 42 inches tall.
Approximately what is the volume of the barrel in gallons?
(Use 1 gal - 231 in)
Answer: 128.5 gallons
Step-by-step explanation:
V= πr²h
V=π15²42
V= 29688.05058in³ ÷ 231 ≈ 128.5 gallons
Note- It would mean the world to me if you could mark me brainliest!
The points and line on a line
Find TWO more points that line on this line.
Answer:
picture please??????????
12 POINTS!! PLEASE HELP!
You ride through some wet paint on your bike, creating a red
spot on the tire. Write a cosine equation to model the height
of the red spot over the distance you ride.
• Your bike tire has a radius (r) of 13 inches
• The period is the circumference of the tire (2 πr)
• Start the cycle when the spot is at the top of the tire
Answer:B
y=13cos(1/13x)+13
Step-by-step explanation:
The cosine equation to model the height of the red spot over a distance you ride is y = 13 cos (x/13) + 13. Then the correct option is B.
What is a cosine Function?It is a function that repeats itself in a particular time interval.
You ride through some wet paint on your bike, creating a red spot on the tire.
Write a cosine equation to model the height of the red spot over the distance you ride.
Your bike tire has a radius (r) of 13 inches.
The period is the circumference of the tire (2πr).
The cosine equation is given as
y = A cos (Bx + C) + D
Where
A = the amplitude
B = time period
C = phase difference
D = shifting of central line
Then we have the diagram
A = 13
B = 1/13
C = 0
D = 13
Then the equation will be
[tex]\rm y = 13 \cos (\dfrac{1}{13}x - 0 ) + 13\\\\y = 13 \cos (\dfrac{x}{13} ) + 13[/tex]
More about the cosine function link is given below.
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10 tacos and 6 drinks cost $19.50. 7 tacos and 5 drinks cost $14.25. If t is the cost of one taco and d is the cost of one drink, which of the following systems of equations represents this situation?
Answer:
Step-by-step explanation:
You haven't listed any choices.
10t + 6d = 19.50
7t + 5d = 14.25
A rectangular yard measuring 37' x 43' is bordered and surrounded by fence. Inside, a walk that is 2 foot wide goes all the way along the fence. Find the area of this walk.
Answer:
[tex]A=160ft^2[/tex]
Step-by-step explanation:
Length of yard [tex]l=37ft[/tex]
Width of yard [tex]w=43ft[/tex]
Walk [tex]l_w=2ft[/tex]
Generally the perameter of the fence P is mathematically given by
[tex]P=l+w[/tex]
[tex]P=37+43[/tex]
[tex]P=80[/tex]
Generally the equation for area of walk is mathematically given by
[tex]A=P*l_w[/tex]
[tex]A=80*2[/tex]
[tex]A=160 ft^2[/tex]
Therefore area of walk is
[tex]A=160ft^2[/tex]
Solve the equation for all real solutions in simplest form.
-4m^2+2m-11=-5m^2
Answer:
m is equal to -1 ± 2√3, which is approximately equal to 2.46 and -4.46
Step-by-step explanation:
-4m² + 2m - 11 = -5m²
m² + 2m - 11 = 0
m² + 2m + 1 = 12
(m + 1)² = 12
m + 1 = ± √12
m = -1 ± 2√3
At a restaurant last week, 4 times as many hot dogs were sold as hamburgers. The
restaurant sold a total of 588 hot dogs last week. Which equation can be used to find
how many hamburgers were sold at the restaurant last week?
4*n-588; n = 147 hamburgers
4xn-588; n = 122 hambungers
4x588 = n;n= 2,352 hamburgers
04x588 - nn- 2,022 hamburgers
Answer:
4×588= n;n=2,352 hamburgers
Abduls bill at a restaurant is $28.65. He wants to leave and 18% tip for the waiter.what is the total amount abdul should leave? round to the nearest cent.
Answer:
I believe it will be 5.16.
Step-by-step explanation:
18% of 28.65 is 5.157, but rounded to the nearest cent will be 5.16. So 5.16 will be your answer. If this is wrong forgive me :3
A circle has an area of 706.5 square inches. What is the diameter, in inches, of the circle?
Answer:
d≈ 30
Step-by-step explanation:
706.5/3.14=224.713376
√224.71=14.99
r= 14.99
d= 29.98
round up to 30
8 - 8x = 3(.2 - x) what does x represent
Answer:
I love algebra anyways
The ans is in the picture with the steps how i got it
(hope this helps can i plz have brainlist :D hehe)
Step-by-step explanation:
answer this
for me pls
Hope has driven 19 miles. She averaged 47 miles per hour. How many more hours must she drive to travel a total of 739 miles?
Pls help I only have until 11:59
What transformations are applied to the graph of the function f(x) = 10^x to produce the graph of the function g(x) = 3(10)^x - 2 ?
A.
a vertical dilation by a factor of and a horizontal shift to the right 2 units
B.
a vertical dilation by a factor of and a vertical shift down 2 units
C.
a vertical dilation by a factor of 3 and a vertical shift down 2 units
D.
a vertical dilation by a factor of 3 and a horizontal shift to the right 2 units
Answer:
C
Step-by-step explanation:
lol didn't i just answer one of your questions, also give me brainliest pls :)
First, the function was multiplied by 3, which is a vertical dialation by a factor of 3. Then, we subtracted 2 from the function, which is a vertical shift down two units. Therefore, the answer is C
The transformations are applied to the graph of the function should be option c. a vertical dilation by a factor of 3 and a vertical shift down 2 units
What transformation should be applied:Since
First, the function should be multiplied by 3, that represent vertical dilation by a factor of 3. After this, we subtracted 2 from the function, i.e. is a vertical shift down two units.
Therefore, the answer is C a vertical dilation by a factor of 3 and a vertical shift down 2 units.
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Please help!!!!!
!!!!
Answer:
C.
Step-by-step explanation:
need some help with this!
Answer:
The answers is C
Step-by-step explanation:
I hope my answer hel you
-9 = X / -6 what does the variable
Answer:
x= 54
Step-by-step explanation:
-9=x/-6
x-6 on both sides
54= x