Answers
for brainliest
Answer:
h=(3v)/(pi r^2)
Step-by-step explanation:
you simply have to move everything to one side.
Answer:
h = [tex]\frac{3V}{\pi r^2}[/tex]
Step-by-step explanation:
Given
V = [tex]\frac{1}{3}[/tex]πr²h ( multiply both sides by 3 to clear the fraction )
3V = πr²h ( isolate h by dividing both sides by πr² )
[tex]\frac{3V}{\pi r^2}[/tex] = h
Related Questions
Determine what shape is formed for the given coordinates for ABCD, and then find the perimeter and area as an exact value and rounded to the nearest tenth.
A (−9, 3), B (−6, −1), C (2, 5), D (−5, 6)
Answers
Answer:
Perimeter = 5 + 5 + 7.1 + 10 =27.1
area = (5 + 10)x5 / 2 = 37.5
Step-by-step explanation:
Slope formula: m = (x' - x)/(y' - y)
m-AD: (6-3)/(-5 - -9) = 3/4 (I'm not detail other Other slopes)
m- BC = 3/4
m-AB = - 4/3
m-AD = m-BC AD // BC (ABCD is a Trapezoid)
m-AB = - 1 / m-BC
AB ⊥ BC
segment length formula: d = √(x' - x)² + (y' - y)²
AD = √(-5 - -9)² + (6 - 3)² = √4² + 3² = √25 = 5
DC = √50 = 7.1
BC = √100 = 10
AB = √25 = 5
Perimeter = 5 + 5 + 7.1 + 10 =27.1
area = (5 + 10)x5 / 2 = 37.5
area ABCD = (5+10)x5 / 2 =
Which product will result in a sum or difference of cubes?
O (x + 7)(x2 – 7x + 14)
O (X + 8)(x2 + 8x + 64)
O (x – 9)(x? mox +81)
O (X – 10)(x2 – 10x + 100)
Answers
Answer:
(x – 9)(x² + 9x+81)
Step-by-step explanation:
The sum of cubes of a and b is given by:
a³ + b³ = (a + b)(a² - ab + b²)
While the difference of cubes is given as:
a³ - b³ = (a - b)(a² + ab + b²)
1) (x + 7)(x² – 7x + 14) = x³ -7x² + 14x + 7x² - 49x + 98
= x³ -35x + 98
2) (X + 8)(x² + 8x + 64) = x³ + 8x² + 64x + 8x² + 64x + 512
= x³ + 16x² + 128x + 8³
3) (x – 9)(x² + 9x+81) = x³ + 9x² + 81x - 9x² - 81x - 729
= x³ - 9³
4) (X – 10)(x² – 10x + 100) = x³ - 10x² + 100x - 10x² + 100x - 1000
= x³ - 20x² + 200x - 10³
1) What are the solutions of (x/3) > -1?
is this asking if I need multiple solutions?
Answers
Yes...
x/3 > -1
what values of x make x/3 > -1
hint... your answer will look like like x > (number)
The length of a rectangle is represented by 4a+3b and its width is represented by 3a-2b. Enter the polynomial for the perimeter of the rectangle. What is the minimum perimeter of the rectangle if a=12 and b is a non-zero whole number?
Answers
Answer:
a) The polynomial for the perimeter of the rectangle is = 14a - 2b
b) 150
Step-by-step explanation:
a) The formula for the area of a rectangle is given as:
P = 2L + 2W
From the question:
The length of a rectangle = 4a+3b
The width of a rectangle = 3a-2b.
The Perimeter of the rectangle is
Perimeter = 2(4a + 3b) + 2(3a - 2b)
Perimeter = 8a + 6b + 6a - 4b
Perimeter = 8a + 6a + 6b - 4b
Perimeter = 14a - 2b
Hence:
The polynomial for the perimeter of the rectangle is = 14a - 2b
b) What is the minimum perimeter of the rectangle if a=12 and b is a non-zero whole number?
Non-zero whole number are single digit number such as: 1, 2, 3, 4, 5, 6, 7, 8, 9
The perimeter of the rectangle is = 14a - 2b
We are asked to find the minimum perimeter of the rectangle if a=12 and b is a non-zero whole number.
In order to solve this, we would used the highest non zero whole number which is 9
Hence,
For a = 12 , b = 9
14 × 12 - 2(9)
= 168 - 18
= 150
Hence, the minimum perimeter of the rectangle if a=12 and b is a non-zero whole number is 150
Solve the given system by substitution.
Answers
Answer:
p = 2; q = 2
Step-by-step explanation:
State if each triangle is acute, obtuse, or right. 50, 48, 14
Answers
Answer:
Each triangle are acute.
Step-by-step explanation:
Obtuse-an angle that is bigger than 90 degrees
Acute-an angle that is smaller than 90 degrees
Right triangle-an angle that is 90 degrees
A model village is built to scale.
It has a scale of 1 : 19.
A road has a real-life length of 1.14 km.
What is the length of the road in the model village in m?
Answers
Answer:
The length of the road in the model is 60 m.
Step-by-step explanation:
Given: scale = 1:19
real-life length of the road = 1.14 km
= 1140 m
Let the length of the road in the model be represented by d. A scale is a representative fraction that can be used to either increase or decrease the length of an object.
Scale = [tex]\frac{length on drawing}{actual length}[/tex]
The actual length is the real-life length given as 1140 m.
So that,
[tex]\frac{1}{19}[/tex] = [tex]\frac{d}{1140}[/tex]
19d = 1140
⇒ d = [tex]\frac{1140}{19}[/tex]
= 60
Therefore, the length of the road in the model is 60 m.
If you earn about $1,623 per week, what would be your yearly salary?
Answers
Answer:
$592,395
Step-by-step explanation:
Because $1,623 x 365= $592,395 in a year
Simplify
4x + 2y + x2 - x + 3 - x2 - 5
A. 3x2 + 5y - 8
B. 2x2 - 3x + 2y - 2
C. -5x + 2y - 2
D. 4x2 - 2y + 5x + 8 help help help pls help
Answers
Answer:
b
Step-by-step explanation:
u just have to think about it
help for this question pls :)
Answers
Step-by-step explanation:
tan(A/2)
tan(A/2)=sinA/1+cos A
tan(A/2)= 5/13÷1+12/13
tanA/2=1/5
Answer:
tan([tex]\frac{A}{2}[/tex] ) = ± [tex]\frac{1}{5}[/tex]
Step-by-step explanation:
Using the trigonometric identity
tan ([tex]\frac{A}{2}[/tex] ) = ± [tex]\sqrt{\frac{1-cosA}{1+cosA} }[/tex]
Given
tanA = [tex]\frac{5}{12}[/tex] = [tex]\frac{opposite}{adjacent}[/tex]
This is a right triangle 5- 12- 13 ( with hypotenuse 13 ), then
cosA = [tex]\frac{adjacent}{hypotenuse}[/tex] = [tex]\frac{12}{13}[/tex] , then
tan ([tex]\frac{A}{2}[/tex] )
= ± [tex]\sqrt{\frac{1-\frac{12}{13} }{1+\frac{12}{13} } }[/tex]
= ± [tex]\sqrt{\frac{\frac{1}{13} }{\frac{25}{13} } }[/tex]
= ± [tex]\sqrt{\frac{1}{25} }[/tex]
= ± [tex]\frac{1}{5}[/tex]
A man paid $8,000 for a boat at an auction. The salesperson received a commission of 12% from the sale of the boat. What was the salesperson’s commission?
Answers
Answer:
$960
Step-by-step explanation:
to find the commission you muake the percent into a decimal
.12
and then multiply by the sale
8000 × .12
answer is $960
A skateboarder is shown below.
we
z
At which point is the skateboarder's potential energy the greatest?
Point X
Point Y
Point W
Point Z
Answers
Point Y
-I hope this helps! Enjoy the rest of your day
Answer:
answer is w
Step-by-step explanation:
What is the area of the shaded region in the figure below? Use 3.14 for pie
Answers
Answer:
200.96 = area of Shaded portions.
Step-by-step explanation:
Area of the 2 stars.
I don't know if you can see this or not, but the 4 quarter circles surrounding the star is found by subtracting a full small square surrounding the star
Area of 1 star = 4 * (1/4) pi * r^2
Area of 1 star = 3.14 * 4^2
Area of 1 star = 50.24
Area of both stars = 100.48
Area of the 4 semicircles at each end
The 2 semicircles at one end figure = 1 circle
The two circles gives the total area of the 4 semicircles.
Area 1 circle = pr * r^2
Area 1 circle = 3.14 * (8/2)^2
Area 1 circle = 50.24
There are 2 such circles = 100.48
Total area of both results
Total Area = 100.48 + 100.48
Total Area = 200.96
Simplify the expression below using the distributive property
Answers
Answer:
40+15i
Step-by-step explanation:
I don't know why you are doing this when you clearly know the answer. Have a good day.
A preschool Field trip required seven buses. 13 children rode in cars with their parents and the rest road on a bus. If there were 258 children on the trip to all together, how many were on each bus
Answers
258-13=245
Next:
245/7=35.
Answer: 35 kids on each bus.
Hope this helps. May I have brainliest please? :))))
Some liquid will be poured from a 16 ounce container until it is filled to the percent of the the larger container (87.5%).How many ounces of liquid must be poured from to reach the full 16 ounce container?
Answers
Answer:
16 ounces
Step-by-step explanation:
First we are told that a container has a capacity of 16 ounces of liquid and therefore 16 ounces of liquid can fill that one container
The 16 ounces liquid from the 16 ounce container is fully emptied in a larger container and fills 87.5% of the larger container therefore the larger container is:
100/87.5×16 ounces= 18.285 ounces in liquid capacity
Therefore to fill the smaller 16 ounce container, the larger container would have to pour 16 ounces of liquid into the smaller container, and would would still have 18.285-16=2.285 ounces if it(the larger container) were filled to the brim(100%)
Below, explain why we are allowed the
"substitute in" x - 3 for y in the top equation.
Why is this useful for finding our first solution?
x + y = 11
y = x - 3
Answers
Answer:
because in the bottom eqution it shows us x-3=y therefor we could re-write the top equation as x+x-3=11
What Percent of 18 is 24?
Answers
Answer:
133.3333..% of 133 1/3 %
Step-by-step explanation:
100% of 18 is 18.
24-18 = 6.
6 is 33.33333...% of 18.
Therefore 24 is 133.3333..% of 18
or
24/18 = 4/3 = 1.333... = 133.33333...%
The percent 133.3% of 18 is 24.
What is Percentage?To determine the quantity or percentage of something in terms of 100, use the percentage formula. Per cent simply means one in a hundred. Using the percentage formula, a number between 0 and 1 can be expressed. A number that is expressed as a fraction of 100 is what it is. It is mostly used to compare and determine ratios and is represented by the symbol %.
Given:
let x Percent of 18 is 24.
So, x% of 18 = 24
x/100 (18)= 24
18x = 2400
x= 2400/18
x= 133.33%
Hence, 133.33% of 24 is 18.
Learn more about Percentage here:
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Which graph shows a line with the slope of 3/2?
Answers
Answer:
B.
Step-by-step explanation:
slope = Rise (y difference) / Run (x difference)
B, Rise = 3 run = 2 slope = 3/2
The graph with a line of slope 3/2 is graph B.
What is Slope?Slope of a line is the ratio of the change in y coordinates to the change in the x coordinates of two points given.
Slope can also be defined as the tangent of the angle that the line is making with the positive X axis.
Slope of a line with two points (x, y) and (x', y') on the lines is,
Slope = (y' - y) / (x' - x)
Take any two points from all the three graphs given to find the slope.
A. Two points are (0, 4) and (6, 8)
Slope = (8 - 4) / (6 - 0) = 4 / 6 = 2/3
B. Two points are (0, 0) and (4, 6)
Slope = (6 - 0) / (4 - 0) = 6/4 = 3/2
C. Two points are (0, 2) and (2, 8)
Slope = (8 - 2) / (2 - 0) = 6/2 = 3
Hence the graph B has slope equals 3/2.
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Determine the value of each variable in the figure below. Keep answers in simplest radical form.
Answers
Step-by-step explanation:
cos60° = Adjacent/Hypotenuse = a/42.
=> a = 42cos60° = 21.
sin60° = Opposite/Hypotenuse d/42.
=> d = 42sin60° = 42(√3/2) = 21√3.
tan30° = Opposite/Adjacent = d/b.
=> b = d / tan30° = (21√3) / (1/√3) = 63.
sin30° = Opposite/Hypotenuse = d/c.
=> c = d / sin30° = (21√3) / (1/2) = 42√3.
apples cost $0.75 per pound and bananas cost $1.05 per pound
a baker bought a total of 12 pounds of apples and bananas for $10.20.
the systems of equation models the situation, where A is the number of pounds of apples and B is the number of pounds of bananas how many pounds of each did the baker buy?
Answers
Answer:
The baker bought 8 apples and 4 bananas
Step-by-step explanation:
System of Equations
Let's call:
a = pounds of apples
b = pounds of bananas
The baker bought a total of 12 pounds of apples and bananas, thus:
a + b = 12 [1]
Apple cost $0.75 per pound and each pound of bananas cost $1.05 per pound. Thus the total cost is 0.75a + 1.05b. We know he spent a total of $10.20, thus
0.75a + 1.05b = 10.20 [2]
Solving [1] for a:
a = 12 - b [3]
Substituting in [2]:
0.75(12 - b) + 1.05b = 10.20
Operating
9 - 0.75b + 1.05b = 10.20
Simplifying:
0.30b = 10.20 - 9 = 1.20
Dividing by 0.30:
b = 1.20/0.30
b = 4
From [3]:
a = 12 - 4 = 8
a = 8
The baker bought 8 apples and 4 bananas
Tim is reading a book. On Monday he reads 2 pages. On each day after that, he reads triple the number of pages as the previous day. How many pages did Tim read on Thursday?
Answers
Answer:
Tim read 54 pages on Thursday.
Step-by-step explanation:
Consider the provided information.
Tim read 2 pages on Monday. Each day after that, he reads triple the number of pages as the previous day.
Monday = [tex]2=2[/tex]
Tuesday = [tex]2\times 3=6[/tex]
Wednesday = [tex]2\times 3\times 3=18[/tex]
Thursday = [tex]2\times 3\times 3\times 3=54[/tex]
Hence, Tim read 54 pages on Thursday.
How many pages does Tim read on Monday? 2 pages.
If Tim tripled the amount that he read on Monday, how many pages did he read on Tuesday? 2 × 3 = 6 Pages
Repeat for Wednesday. 6 × 3 = 18 Pages
Repeat for Thursday. 18 × 3 = 54 Pages
9-7w=8w+8
what is w??
Answers
Answer:
w=1/15
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
9−7w=8w+8
9+−7w=8w+8
−7w+9=8w+8
Step 2: Subtract 8w from both sides.
−7w+9−8w=8w+8−8w
−15w+9=8
Step 3: Subtract 9 from both sides.
−15w+9−9=8−9
−15w=−1
Step 4: Divide both sides by -15.
−15w/−15 = −1/−15
w = 1/15
-15w=-1
w=-1/-15
w=0.6666.......
Factor the greatest common factor out of the expression.
5m + 15m² + 5m
SHIRE
Answers
Answer:
5m
Step-by-step explanation:
The expression is 5m(1 + 3m + 1) = 5m(3m + 2), which cannot be simpolified further.
Nicholas has 6 ounces of dish soap in an old, nearly empty bottle. He also has 22 ounces of dish soap in a new, unopened bottle. Which expression tells you how much dish soap Nicholas has in all? A. 6+22 B.6x22
Answers
What is the value of n?
07
O 11
O 14
15
Answers
07
Step-by-step explanation:
just want the answer right. thats the answer. not the answer btw just need points for my question cmon dude you know how it is. struggling really bad rn
The value of n in the given triangle is 11.
What is incenter of a triangle?The incenter is one of the triangle's points of concurrency formed by the intersection of the triangle's 3 angle bisectors.
Given that, triangle DEF, where A is the incenter of the triangle, we need to find the value of n,
Since we know that, incenter is a point in triangle where all the angle bisector meets, therefore,
3n-6 = 27
3n = 33
n = 11
Hence, the value of n in the given triangle is 11.
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Connor's family took a road trip to Niagara Falls. Connor slept through the last 15% of the trip. If Connor fell asleep after they had travel 663 miles what was the total length of the trip.
Answers
Answer:
The length of the trip is 780 miles
Step-by-step explanation:
Given
[tex]Sleep = 15\%[/tex]
[tex]Distance\ Travelled = 663[/tex]
Required
Determine the length of the trip
If Connor slept for 15% of the trip, then Connor was awake for 85%
This is calculated as:
[tex]Sleep + Awake = 100\%[/tex]
[tex]15\% + Awake = 100\%[/tex]
[tex]Awake = 100\% - 15\%[/tex]
[tex]Awake = 85\%[/tex]
Represent the required distance with D.
So the expression for when she was awake is:
[tex]85\% * D = 663[/tex]
Make D the subject
[tex]D = \frac{663}{85\%}[/tex]
Convert % to decimal
[tex]D = \frac{663}{0.85}[/tex]
[tex]D = 780[/tex]
Hence, the length of the trip is 780 miles
Is Noah's work correct? Explain. Yes, Noah's calculations are correct. No, Noah did not simplify correctly. No, Noah used the diameter instead of the radius in the calculations. No, Noah did not use the correct formula for volume of a sphere.
Answers
Answer:
No, Noah used the diameter instead of the radius in the calculations.
V = 91.13π
Step-by-step explanation:
Noah is working on a geometry problem that involves finding the volume of a sphere with a diameter of 9 units. His work is shown below.
V = πr3
V = π(9)3
V = π(729)
V = 972π cubic units
Is Noah’s work correct
Volume of a sphere, V = πr³
radius, r = diameter / 2
Diameter = 9 units
r = 9 / 2
= 4.5 units
Volume of a sphere, V = πr³
= π × 4.5³
= π × 91.125
= 91.125π
Approximately 91.13π
V = 91.13π
No, Noah used the diameter instead of the radius in the calculations.
Answer:
no, he used radius instead of diameter
Step-by-step explanation:
Four more than six times a number is 18.
Answers
Answer:
2.3 repeating
Step-by-step explanation:
thats what i got
3x-15=3
what is x in this equation?
Answers
Answer: The answer is 6
Step-by-step explanation: 3x-15=3 Add 15 to both side
3x=18 Divide 3 to both side
3= 3
x=6 The answer