Answer:
5/13
Step-by-step explanation:
There are 20 girls, and 32+20 = 52 learners.
Ratio give us 20/52
After simplifying: 5/13
. The depth of the Atlantic Ocean at a channel buoy off the coast of
Maine can be modeled by y = 5 - 3cos (pi/6t) where y is the water depth
in feet and t is the time in hours. Consider a day in which t=0
represents 12:00 midnight.
a. For that day (in 24 hours), when do the high and low tides occur?
b. What are the respective depths of the ocean at high tides and low
tides?
a)The high and low tides occur at when the value of cos function is an odd and even multiple of the π respectively.
b)The respective depths of the ocean at high tides and low tides will be 8 ft and 2 ft.
What exactly is a function?A function is a statement, rule, or law that specifies the connection between two variables. Functions are common in mathematics and are required for the formulation of physical connections.
Modeling the depth of the Atlantic Ocean at a channel buoy off the coast of Maine is;
[tex]\rm y = 5-3 cos (\frac{\pi}{6} t)[/tex]
a) High tide's value of 'y' when the value of y is maximum. value of cosine is minimum.
The minimum value of cosθ = 1.
The standard form to write the cos function is as;
θ=(2n+1)π
Whenever. high tides occur when it equals odd multiples of π. Similarly, at a Value of even multiples of even function, low tides are at their peak.
Hence,the high and low tides occur at when the value of cos function is an odd and even multiple of the π respectively.
At high tide;
соsӨ = - 1 (min value)
y= 5-3(-1)
y = 5+3
y=8 ft
At low tide,соsӨ = + 1 (max value)
y =5-3(1)
y= 5-3
y= 2
Hence,the respective depths of the ocean at high tides and low tides will be 8 ft and 2 ft.
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help pleaseeeeeeeee
Pls help!!
A new truck that sells for $34,000 depreciates 14% each year. Find the value of the car after 7 years
A) $ 11,829.55
B) $16,950.55
C) $11,689.55
D) $4760.00
Which missing X-value would make the table a function?
Tom pays $1506 in rent every month. This amount is $50 more than twice what his brother Arturo pays for
rent. How much does Arturo pay for rent?
Answer:
$3062
Step by Step Explanation:
Arturo's rent can also be written as an expression
2t + 50
This is basically showing that two of Tom's rent plus $50 gives you his brother's rent.
So 2(1506) + 50
3012 + 50
3062
The composite figure shown is made
from a rectangle and part of a circle. Find the approximate area and
perimeter of the entire figure. Round to the nearest tenth
The area of a 2D form is the amount of space within its perimeter. The area of the composite figure is 74.137 ft².
What is an area?The area of a 2D form is the amount of space within its perimeter. It is measured in square units such as cm2, m2, and so on. To find the area of a square formula or another quadrilateral, multiply its length by its width.
The area of the composite figure will be the sum of the area of the rectangle and the area of the semi-circle, therefore, the area of the composite figure will be,
Area = Area of rectangle + Area of the hemisphere
= (10×6) + [(π/2)×3²]
= 60 + 14.137
= 74.137 ft²
Hence, the area of the composite figure is 74.137 ft².
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HELP ASAP Show what you know: work out the problems below and submit a photo of your work to receive full credit.
The Florida A&M Rattlers are decorating campus for homecoming weekend. Students use 3 rolls of orange streamers for every 2 rolls of green streamers for every dorm they decorate.
Draw a model that represents the ratio of different colored streamers.
Draw a model that shows the number of orange and green streamers needed to decorate 3 dorm rooms.
The model for representing the ratio of the number of orange and green rolls are [tex]\dfrac{3}{2}=\dfrac{O}{G}[/tex]
A model that shows the number of orange and green streamers needed to decorate 3 dorm rooms will be 3O=2G
What is ratio?
The ratio is defined as the representation of the one number with respect to the other number. or one number is how many times to the other number.
A model that represents the ratio of different coloured streamers.
[tex]\dfrac{3}{2}=\dfrac{O}{G}[/tex]
A model that shows the number of orange and green streamers needed to decorate 3 dorm rooms.
3O=2G
Hence the models are [tex]\dfrac{3}{2}=\dfrac{O}{G}[/tex] and 3O=2G
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Population is growing, which creates more demand for water, especially in the southwestern part of the United States. In general, states are using more water than the system can supply, diminishing this limited resource.
Utilize the Chapter 11 textbook reading, which covers concepts related to common resources such as water and the tragedy of the commons, as well as the podcast "Water in the West: Bankrupt?" provided in the topic Resources to address the following:
• How would water bankruptcy work? Include who benefits and who loses as a result.
• Provide an alternative way in which a water shortage problem can be resolved?
Water bankruptcy is associated with the problems among the beneficiaries whose demands are more than the total available water.
What is water?It should be noted that water simply means a colorless and odorless liquid that is the basis of living organisms. The limited water supply has led to water resources bankruptcy which is the failure of water to meet the imposed demand by users.
The people who will benefit in water bankruptcy are the people whose needs weren't met by the available water.
An alternative way in which a water shortage problem can be resolved is the recycling of waste water and rainwater harvesting.
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Water has a specific heat of 4.184 J/g°C and requires 23,000 J of heat to raise the
temperature 68° C. What is the mass of the water?
Answer:
[tex]m=80.840 kg[/tex]
Step-by-step explanation:
Given Data,
Q=23000 J
c=4.184 J/g °c
Δt= 68 °c
m=?
By using this equation,
Q=mcΔt
[tex]23000=m\times 4.184\times 68\\\\m=\frac{23000}{4.184\times68} \\\\\\m=80.840 kg[/tex]
Which statements are true based on the Pythagorean identities??
Answer:
2 .3 and 5
Step-by-step explanation:
Your watch gains 9.5 minutes in 6 h. How much will it gain in 3 days?
Answer:
114 minutes
Step-by-step explanation:
There are 72 hours in 3 days, 72 divided by 6 is 12. Multiply 9.5 by 12, and you get 114
Y=45(1.82)x does change represent decay or growth and %increase
Answer:
Exponential growth
The growth rate is 82%
=========================================
Explanation:
Anything of the form y = a*b^x will have the value of b directly determine the growth or decay rate. The value a = 45 is ignored.
Set b = 1.82 equal to 1+r and solve for the variable r.
1+r = 1.82
r = 1.82-1
r = 0.82
The growth rate is 82%
If r was negative, then we'd have exponential decay instead.
Anna and grace a twin baby girls. At birth, and I was 18 inches long and grace was 19 1/2 inches long. Each of them grew 3/4 inch per month for the first five months. Complete the table to show the length of each baby at the end of each of the first five months.
Answer:
(Anna)
month 1: 20 1/4
m2: 20
m3: 20 2/3
m4: 21 1/2
(Grace)
month 1:18 3/4
m2: 19 1/2
m3: 20 1/4
m4: 21
Step-by-step explanation:
you just take the first month plus 3/4 and then take the answer to that plus 3/4 and just do that repeatedly till you reach your needed
hope it's right and helps!!
3) What time will it be 13 hours and 17 minutes before 4:54 a.m.?
Answer:
9:41
Step-by-step explanation:
Let's solve this in the most simplified version.
⇒ 4: 54
⇒ 13 Minutes Before
( 54 - 13)
= 4:41
Subtract 13 from 4
= -9
Eliminate the negative sign.
⇒ 9:00 .
Add the "41" to the time:
⇒ Final result: 9:41
A swimming pool is 20m long, 8m wide and 2m deep. If the density of water is 1g/mL, what is the mass of water in the pool?
Answer:
im doing it just wait okay buddy??
Sam traveled 20 miles in 3 hours.
Sam walked part of the distance at a speed of 4 miles per hour.
Sam rode his bicycle for the remaining distance at a speed of 12 miles per hour.
note: this question has been asked before but i do not believe it was answered correctly, it was solved using 4 hours instead of 3
Answer:
see below
Step-by-step explanation:
distance / rate = time
x = walking distance 20 -x = biking distance
x / 4 m/hr + (20-x) / 12 m/hr = 3 hours
x/4 + ( 20-x) /12 = 3 multiply both sides of the equation by 12
3x + 20 -x = 36
2x = 16
x = 8 8 miles walking then 12 miles biking
What is the area of the trapezoid?
Answer:
20mm^2
Step-by-step explanation:
add the bases, divide by 2, then multiply the height
Answer:
20mm2 because I did this, and I got 100% I promise please mark me brainiest
Step-by-step explanation:
A three digit number is to be made using the digits 1,3,5,8 how many numbers can be made of all digits must be different
Answer:
24 Numbers can be made that are different!
Step-by-step explanation:
I got 24 numbers
1358 , 1385 , 1835 , 1853 , 1583, 1538
3581 , 3518 , 3851 , 3815 , 3185 , 3158
5381 , 5318 , 5138 , 5183 , 5813 , 5831
8531 , 8513 , 8153 , 8135 , 8351 , 8315
Hope this helps!
Solve f(8) for f(x) = 2x + 7
Jhy
ƒ(8) = [?]
Answer:
f(8) = 23
Step-by-step explanation:
Plug in 8 for f(x) = 2x+7
2(8)+7
16+7
= 23
Explain how you can graph points on a coordinate plane to create geometric figures such as squares, triangles, rectangles, and parallelograms
A figure can be graphed on a coordinate plane as a set of points located on specific places, specified by their coordinates.
How can we perceive cartesian coordinate plane?The cartesian coordinate plane (2d) is an infinite 2 dimensional plane. Any 2 dimensional figure can be drawn on an infinite 2d plane. Each of the point of a cartesian plane is tracked by a location.
It is the perpendicular distance of that point from the horizontal axis and vertical axis, usually named x-axis and y-axis. The location is then written as: (a,b), where 'a' is that point's shortest distance from the y-axis and called x-coordinate of that point, and 'b' is that point's shortest distance from the x-axis, and called y-coordinate of that point.
On an infinite 2d plane, any 2-dimensional figure can be drawn. Any figure, when drawn, the points constituting that figure can be specified using coordinates. Thus, that figure can be graphed on a coordinate plane as a set of points located on specific places, specified by their coordinates.
Thus, a figure can be graphed on a coordinate plane as a set of points located on specific places, specified by their coordinates.
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A tank with some sand has a mass of 4050 g. Another similar tank with some water has a mass of 2550 g. The mass of the sand is 3 times the mass of the water. What is the mass of the empty tank? Pls help me!
Answer:
=1800g
Step-by-step explanation:
T + S=4050
T + W=2550
let s:w be 3t:t
4050-3t=2550-t
collect like terms
-2t= -1500
-2 -2
t=750g
therefore
T= 2550-750
=1800g
3) Ash decided to buy some new socks. They had two coupons, one said 10% off and the other was for $3 off. If the package of socks sells for $25, which coupon should they use? For each option, what would be the price after discount and tax that Ash would need to pay?
Answer:They should use the $3 off
Step-by-step explanation:
10% of 25 = 2.5
25-2.5 = 22.5 (price after using coupon)
$3 off of 25= 25-3
= 22
therefore, if they use the $3 off, they will spend less
The function f(x) is shown on the graph.
The graph shows an L-shaped curve, which follows along the x-axis from the left, but is not touching it. It crosses through 0 comma 1 to and then increases upward in quadrant one.
IMAGE BELOW
Which type of function describes f(x)?
Rational
Polynomial
Logarithmic
Exponential
Considering that the graph contains an asymptote and does not cross it, an exponential function is modeled.
What is an exponential function?It is modeled by:
[tex]y = ab^x + c[/tex]
In which:
a is the y-intercept.b is the rate of change.y = c is the asymptote, which is not crossed by the function.Hence, in this problem, an exponential function with asymptote at y = 0 is modeled by the graph.
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Answer: Logarithmic
Step-by-step explanation:
it correct
The volume of this cone is 19,292.16 cubic yards. What is the height of this cone?
Answer:
The formula for volume of a cone is area of a circle times height, divided by 3.
Therefore volume is pi times radius squared times height, divided by 3.
V = (3.14)(14)^2 (14)/3
V = (3.14) (196)(14)/3
V = (3.14) (2744)/3
V = 8616.16/3
V = 2872.05333
to the nearest hundredth is 2872.05 cubic yards.
Step-by-step explanation:
Answer:
2872.05
Step-by-step explanation:
It's real simple mainly it's all about dividing
Anwar is thinking of a number. He gives three clues about his number: It is an odd number; The number is less than -12; and The absolute value of the number is between 10 and 14. What is Anwar's number?
Answer:
-13
Step-by-step explanation:
it must be either -11 or -13. -13 is less than -12.
Given: - 1/2 x > 6.
Choose the solution set.
{x | x R, x > -12}
{x | x R, x > -3}
{x | x R, x < -3}
{x | x R, x < -12}
Answer:
[tex]x > - 12[/tex]
Step-by-step explanation:
[tex] - \frac{1}{2} x > 6 \\ \frac{ - \frac{1}{2} }{ - \frac{1}{2} } x > \frac{6} { - (\frac{ 1}{2} )} \\ x > 6 \times - \frac{2}{1}[/tex]
Therefore:
[tex]x > - 12[/tex]
Find the circumference of a circle with diameter,
d
= 2.69m.
Give your answer rounded to 2 DP.
Answer:
C = 8.45 m
Step-by-step explanation:
The equation to find the circumference of a circle is:
[tex]C=2\pi r[/tex]
r = radius
To find the radius, divide the diameter by 2:
r = 2.69 m/2 = 1.345 m
Now, plug the radius into the equation:
[tex]C = 2\pi (1.345)[/tex]
Use a calculator to get the final answer:
C = 8.45 m
Hope this helps!!
Find the mean 28,18,19,18,17
Answer:
The mean is 20.Step-by-step explanation:
To find:
The mean.Given:
The mean is calculated by dividing all the values in a set by their left-to-right numbers.
To begin, add up all the means numbers.
Solve.
Solutions:
[tex]\Longrightarrow: \sf{28+18+19+18+17=100}[/tex]
Five mean numbers are given.
All you have to do is divide them.
[tex]\Longrightarrow: \sf{100\div5=\boxed{\sf{20}}[/tex]
[tex]\Longrightarrow: \boxed{\sf{20}}[/tex]
Therefore, the mean 28, 18, 19, 18, 17 is 20, which is our answer.I hope this helps, let me know if you have any questions.
Good luck with your assignment!
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PLEASE HELP ASAP!!! I WILL GIVE BRAINLIEST TO THE RIGHT ANSWER
It is a Part A and Part B Question
Note: please add the answer next to what part it's from so I can know which part was answered
Answer:
c
Step-by-step explanation:
-3≤7c+4<18
-3-4≤7c+4-4<18-4
-7≤7c<14
divide by 7
-1≤c<2
12
In a neighborhood an of the lots have three or more trees. Which percentage is equivalent to the portion of lots
the neighborhood with three or more trees?
Answer:
30%. Based on the given conditions, formulate: 12/40 Cross out the common factor: 3/10 Multiply a number.
Step-by-step explanation:
