Answer:
-26/8+7=15/4 or 3 3/4
Step-by-step explanation:
i need help with this ^
Answer:
p=21
Step-by-step explanation:
42+5p-7+2p-2=180
33+7p=180
7p=147
p=21
Water is flowing into and out of a small reservoir. The total amount of water can be modeled by R, where R(t)=20-15sint^2/25 cubic feet, t is measured in hours and 0
9514 1404 393
Answer:
a) about -1.03 cubic feet per hour
b) R'(t) = -6/5t·cos(t^2/25); the rate of flow into the reservoir
c) 0.859 and 5.972 hours
d) 9.838 hours
Step-by-step explanation:
The rest of the problem statement is in the first attachment. See the second attachment for the graphing calculator input/output.
a) The average rate of change on the interval [0, 8] is ...
(R(8) -R(0))/(8 -0) ≈ -1.03004 . . . cubic feet per hour
__
b) The derivative can be found using the chain rule.
R'(t) = -15(2t/25)cos(t^2/25)
R'(t) = -6/5t·cos(t^2/25)
The derivative of the volume is the rate of change of volume, that is, the flow rate into the reservoir.
__
c) To find the time values when R' = 'average rate of change', we defined the constant a1 to be that average rate of change. The graphing calculator shows the curve R'(t)-a1, which has zeros at the times of interest. The times for which the instantaneous rate of change equals the average rate of change are t = 0.859 and t = 5.972 hours.
__
d) The time of interest is beyond the domain of the function. We cannot use the given function to determine the time of interest.
However, if we extend the domain to include the time of interest, we find it is t = 9.838 hours.
Answer:
yes, what he said
Step-by-step explanation:
The mean monthly water bill for 52 residents of the local apartment complex is $73. What is the best point estimate for the mean monthly water bill for all residents of the local apartment complex?
Answer:
$3796
Step-by-step explanation:
Cost of water bill = $73
Number of residents of the local apartment complex = 52
Water bill for all 52 residents = $73×52
= $3796
$3796 is the best point estimate for the mean monthly water bill for all residents of the local apartment complex
What is Statistics?Statistics is the discipline that concerns the collection, organization, analysis, interpretation, and presentation of data.
Given,
The mean monthly water bill for 52 residents of the local apartment complex is $73
We need to find the best point estimate for the mean monthly water bill for all residents of the local apartment complex
Cost of water bill = $73
Number of residents of the local apartment complex = 52
Water bill for all 52 residents = $73×52
= $3796
Hence $3796 is the best point estimate for the mean monthly water bill for all residents of the local apartment complex
To learn more on Statistics click:
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The table below shows the number of shirts of different colors in a closet:
Color of Shirt Number
Red 1
Blue 6
Green 1
Pink 4
A coin
Dennis selects a shirt from the closet randomly without looking. What is the probability that Dennis will select a pink shirt and the coin will land tails up?
5 over 6
3 over 6
4 over 24
2 over 24
Answer:
i believe its 4 over 24 but not sure
Step-by-step explanation:
Answer:
4 over 24 is the correct answer!
how do I figure this out
Answer:
7.8 inches
Step-by-step explanation: you divide the 60 minutes in an hour by the 45 minutes. You should get 1.3. After that you multiply the 1.3 time the 6 inches of rain and receive 7.8 inches.
450 inches of rain per hour
if you want an explanation i can give you one
What is the measure of the angle BAC
62°
A
0 x
С
132°
When using a number line to model addition, what does the first integer in a subtraction problem tell you?
It tells you where to begin on the number line.
It tells you what you how much money you have!
which is the solution to the equation 0.5x+4.2=5.9
Answer:
x=3.4
Step-by-step explanation:
you want to subtract 4.2 from 5.9 so it will be 1.7. Then 1.7/0.5 and it will be 3.4
hope this helped
Karly is choosing between two health clubs. Yoga Studio A charges a membership fee of $22.00 and $24.50 per month. Yoga Studio B charges a membership fee of $47.00 and $18.25 per month. At how many months will they cost the same? *
In four months they will both cost the same
24.5x+22=18.25x+47
X=4
where is the point (7,-10 on the coordinate plane
2x3x5b work this out please
Find the measure of each acute angle.
xo
(3x + 2)°
(3x + 2) =
and
PLEASE HURRY THIS IS A TEST !!!
Answer:
x = 22
3x + 2 = 68°
Step-by-step explanation:
x + 3x + 2 = 90° because this is a right triangle
3x + 2 = 90
4x = 88 divide by 4
x = 22
3x + 2 replace x with the value we found
3×22 + 2 = 68°
A. 92
B. 112
C. 136
D. 38
Answer:
A?
Step-by-step explanation:
Answer:
B) 112
Step-by-step explanation:
(180-46)/2=67
67+45=112
Use the Addition Property for integrals to find values for r and s.
Answer:
Lower limit: -5
Upper limit: -15
Step-by-step explanation:
Notice that the property of addition of integrals shown below, gives the answer to the problem:
[tex]\int\limits^b_a {f(x)} \, dx +\int\limits^c_b {f(x)} \, dx =\int\limits^c_a {f(x)} \, dx[/tex]
therefore, the values you need to type inside the two limits of the integral are:
Lower limit: -5
Upper limit: -15
Alyssa is helping to set up drinks and snacks for a luncheon.
Alyssa has 4.5 liters of lemonade to pour into pitchers. Each pitcher holds 0.9 liter of lemonade. If Alyssa pours an equal amount of lemonade into each pitcher, how many pitchers does she fill?
Alyssa drew the model below to show how many pitchers she fills.
The grids represent the amount of lemonade that Alyssa has. The lines represent Alyssa's division.
Answer in at least 2 complete sentences.
Is Alyssa's model correct?
Explain how do you know?
Answer:
Haha this isn't college Alyssa fills 5 pitchers. 4.5 divided by the liters of lemonade(0.9) equals 5 pitchers because 9x5=45 so, 4.5 liters of lemonade divided by 0.9 liters equals 5 pitchers.
Step-by-step explanation:
Need help with slope and y-intercept 7th grade
Answer: The second one y= 1.6x-5
Step-by-step explanation: I am in the 8th grade and learn this last week. You probably live in a different country. btw can i have brainliest?
30 POINTS TO ANSWER!!!!!
For the equation below, x is the input and y is the output.
y = -4x + 3
If the input is -8, then the output is * blank *
Answer:
35
y = -4(-8) +3
y= 35
yea
that is the out put so 35
A scale drawing has a ratio of 1:75 what does this ratio mean
Answer:
it means it could be this 1/75 or 1 to 75
Step-by-step explanation:
.
simplify 2.3w - 7 + 8.1 - 3w ?
Answer:
1.1 - 0.7w
Step-by-step explanation:
hope this helps (～o￣3￣)～
what is the purpose of points? what do we do with them?
Answer:
The purpose of the points is to help other people to gain points so they can ask there questions
A mouse eats 30 pieces of cheese in 10 minutes. How many pieces of cheese does she eat in 12 minutes?
Answer:
36 pieces of cheese in 12 minutes
Step-by-step explanation:
So we will divide the amount of cheese over the amount of time to get the amount of cheese eaten in one minute.
30/10 = 3
So the mouse eats 3 pieces of cheese each minute. So if the mouse ate 30 pieces of cheese in 10 minutes it will eat 36 pieces of cheese in 12 minutes
She will eat 36 pieces of cheese in 12 minutes
What is Algebra?Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.
The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This approach is used to answer the problem correctly and completely.
We are given that mouse eats 30 pieces of cheese in 10 minutes.
Therefore, we will divide the amount of cheese over the amount of time to get the amount of cheese eaten in one minute.
30/10 = 3
So, the mouse eats 3 pieces of cheese each minute.
Hence, if the mouse ate 30 pieces of cheese in 10 minutes then it will eat 36 pieces of cheese in 12 minutes.
More about the Algebra link is given below.
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3x - 7(x + 3) < -13
Answer:
simplified
x>-2
Step-by-step explanation:
Mark cycles from home to school at a speed of 16 kilometers per hour. He cycles back on the
same route at a speed of 15 kilometers per hour. The total time taken for the journey is 7 3/4
hours. Given that the distance for his home to school is d kilometers, and that distance -
speed - time, write and solve an equation to find the total distance traveled by him.
Answer:
Write a time equation, time = dist/speed
:
go time + return time = total time
d%2F16 + d%2F15 = 7.75 hrs
multiply equation by the least common multiple 240, cncel the denominators:
15d + 16d = 240(7.75)
31d = 1860
d = 1860/31
d = 60 km one way
total dist = 120 km
:
Check this, find the actual time each way
60/16 = 3.75 hrs
60/15 = 4 hrs
-----------------
total time 7.75 hrs
Step-by-step explanation:
Jennifer is hanging a curtain her bedroom she wants the width of the curtain to be the same as the width of the window if the window is 200 cm wide how many meters wide should the curtain be?
I NEED MAJOR HELP ASAP PLEASE PLEASE PLS
Answer:
[tex]Width =2m[/tex]
Step-by-step explanation:
Given
[tex]Width = 200cm[/tex] ---Window
Required
Determine the width of the curtain in meters
From the question, we understand that the window and the curtain has the same width.
Hence:
[tex]Width = 200cm[/tex] ---- Curtain
Divide by 100 to convert to meters
[tex]Width = \frac{200m}{100}[/tex]
[tex]Width =2m[/tex]
Hence, the width of the curtain is 2m
(Here's a free one )
In the example shown, would you get the same sum if you used 12 as the common denominator? Explain. Alex rode his scooter from his house to the park. Later, he rode from the park to baseball practice. How far did Alex ride? ( 1/2 mile to the park from the house and 1/3 mild from the park to baseball practice)
Answer:
5/6
Step-by-step explanation:
At a neighborhood cookout,
the ratio of children to adults
is 7:2. If there are 10 adults,
how many Total people are at
the cookout?
Answer 45
Step-by-step explanation:
Because 2 times 5 is 10 so 7 times 5 is 35 then add them together.
An individual is printing new IT manuals for a staff of 30. The IT manuals are 120 pages each. If each ream of paper is 300 pages, how many reams of paper does the individual need to put in the printer to get the job do
Answer:12 reams if there are no printing issues and no pages have to be reprinted
Step-by-step explanation:
The number of reams of paper that the individual need to put in the printer to get the job done will be 75.
What are ratio and proportion?A ratio is a group of sequentially ordered numbers a and b expressed as a/b, where b is never equal to zero. When two objects are equal, a statement is said to be proportional.
An individual is printing new IT manuals for a staff of 30. The IT manuals are 120 pages each. If each ream of paper is 300 pages.
Let 'x' be the number of reams of paper. Then the equation is given as,
x / 300 = 30 / 120
Simplify the equation, then we have
x / 300 = 30 / 120
x / 300 = 1 / 4
x = 300 / 4
x = 75
The number of reams of paper that the individual need to put in the printer to get the job done will be 75.
More about the ratio and the proportion link is given below.
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Help plssss ASAP brainliest
Answer:
Step-by-step explanation:
x and 6
6^2 is 36
x^2 is still x^2
now we need to find the square root of their sum
square root of ( 36 + x^2 )
I'm not that sure about this one i think it might be more simplified
HELP THIS IS MY LAST QUESTION ! <3
The weight of an object on the moon varies directly as its weight on earth. A person who weights 27.4 lb on the moon weights 164.4 lbs on earth. How many pounds would be a 270 lb person weigh on the moon?
Answer:
45 lb
Step-by-step explanation:
You can simple use unitary methods.
It is a simple visualization:
27.4 on moon = 164.4 on earth
(27.4/164.4) on moon = 1 on earth
270(27.4/164.4) on moon = 270 on earth
45 on moon = 270 on earth
Or, use, unitary method,
=> 164.4/27.4 = 270/x
=> x = (270 × 27.4)/164.4
=> x = 45
Or, use the concept "weight becomes 1/6 of the real one(of that on earth)".
270 lb on moon = 270/6 = 45 lb
4 1/3 divided by 4/7
