Answer:
Volume of a cone [tex]=942.86cm^3[/tex]
Step-by-step explanation:
Given that the radius of a cone is 15cm and its height is 4cm
That is r=15cm and h=4cm
To find the volume of a cone :
volume of a cone[tex]=\frac{\pi r^2h}{3}[/tex] cubic units
Now substitute the values in the formula we get
volume of a cone[tex]=\frac{(\frac{22}{7}) (15)^2(4)}{3}[/tex]
[tex]=\frac{(\frac{22}{7}) (225)(4)}{3}[/tex]
[tex]=\frac{19800}{21}[/tex]
[tex]=942.857[/tex]
Now round to nearest hundredth
[tex]=942.86[/tex]
Therefore Volume of a cone[tex]=942.86cm^3[/tex]
how do you solve the equation -3 1/3 = -1/2g
[tex]g=\frac{20}{3}[/tex]
Solution:
Given expression is [tex]-3\frac{1}{3}=\frac{-1}{2}g[/tex].
To solve the given expression:
Let us first convert the mixed fraction into improper fraction.
⇒ [tex]-3\frac{1}{3}=\frac{-1}{2}g[/tex]
⇒ [tex]-\frac{(3\times 3 )+1}{3}=\frac{-1}{2}g[/tex]
⇒ [tex]-\frac{10}{3}=\frac{-1}{2}g[/tex]
Do cross multiply on both sides of the equation.
⇒ [tex]-10\times2=(-1\times3)g[/tex]
⇒ [tex]-20 = -3g[/tex]
⇒ [tex]\frac{-20}{-3}=g[/tex]
Both minus in the numerator and denominator are cancelled.
⇒ [tex]\frac{20}{3}=g[/tex]
Hence, [tex]g=\frac{20}{3}[/tex].
last week daniel ran 6 miles more than Jasmine . Daniel ran 24 miles. How many miles did Jasmine run ?
Answer:
18 miles
Step-by-step explanation:
If Daniel ran 24 miles take away the 6 more miles he ran to get 19 miles.
Distance covered by Jasmine is 18 miles when Daniel had ran 6 miles
What is an expression?
Expression in mathematic is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.
It is given that Daniel ran 6 miles more than Jasmine last week which means that if Daniel ran 24 miles than jasmine had ran 6 miles less then Danial that is 24 miles subtract 6 miles which comes out be 18 miles :
Distance covered by Jasmine = 24 miles - 6 miles = 18 miles in total
Therefore, Distance covered by Jasmine is 18 miles when Daniel had ran 6 miles.
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x minus 2 equals 5 (x-2=5)
This table shows how the amount of money Sadie makes from selling lemonade is related to the number of cups sold. How much does one cup of lemonade cost?
Answer:
One cup of lemonade will cost $2.
Step-by-step explanation:
From simple observation and visual inspection we can conclude that one cup of lemonade costs $2.
If 9 cups of lemonade cost $18 then one cup of lemonade will cost $18÷9 = $2
If 2 cups of lemonade cost $4 then one cup of lemonade will cost $4÷2 = $2.
Therefore we can conclude that one cup of lemonade will cost $2.
-9x-5=-95
Please help!
-9x - 5 = -95
-9x = -95 + 5
-9x = -90
x = -90/-9
x = 10
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consider the function f(x)=-2x+5 what is f(5) enter your answer in the box
The value of f(5) is [tex]f(5)=-5[/tex]
Step-by-step explanation:
The function is [tex]f(x)=-2x+5[/tex]
To find [tex]f(5)[/tex] substitute [tex]x=5[/tex] in [tex]f(x)=-2x+5[/tex]
[tex]f(5)=-2(5)+5[/tex]
Multiplying the terms, we get,
[tex]f(5)=-10+5[/tex]
Adding the terms, we get,
[tex]f(5)=-5[/tex]
Thus, the value of [tex]f(5)[/tex] is [tex]f(5)=-5[/tex]
passes through (3,-6) and (-1, 2)
Answer:
Therefore, Equation of line and the slope is
[tex]y=-2x[/tex]
[tex]Slope = -2[/tex]
Step-by-step explanation:
Given:
Let,
point A( x₁ , y₁) ≡ ( 3 ,-6)
point B( x₂ , y₂ )≡ (-1 , 2)
To Find:
Equation of Line AB =? ( Assumption)
Solution:
Equation of a line passing through a points A( x₁ , y₁) and point B( x₂ , y₂ ) is given by the formula Two -Point Form,
[tex](y-y_{1})=\dfrac{y_{2}-y_{1} }{x_{2}-x_{1} }\times (x-x_{1})[/tex]
Now on substituting the slope and point A( x₁ , y₁) ≡ ( 3 , 6) and B( x₂ , y₂ )≡ (-1 , 2) we get
[tex](y-(-6))=\dfrac{2--6}{-1-3}\times (x-3)\\\\y+6=\dfrac{8}{-4}(x-3)\\\\y+6=-2(x-3)\\y+6=-2x+6\\y=-2x[/tex] .....Required Equation of line
Which is also in the form of
[tex]y=mx[/tex] ....Also called as Equation of line Passing through Origin.
where , m =slope
Therefore, Equation of line and the slope is
[tex]y=-2x[/tex]
[tex]Slope = -2[/tex]
To find the equation of a line passing through two given points, calculate the slope using the slope formula, and then substitute the slope and one of the points into the point-slope form of a line equation. The line passing through the points (3,-6) and (-1,2) is given by the equation y = -2x + 6.
Explanation:To find the equation of the line that passes through the points (3, -6) and (-1, 2), we use the formula for the slope, denoted as 'm': m = (y2 - y1) / (x2 - x1).
Then, we substitute the given pair of points into this formula to find the slope: m = (2 - -6) / (-1 - 3) = 8 / -4 = -2.
After obtaining the slope, we use the point-slope form of an equation of a line, which is y - y1 = m(x - x1). Substitute one of the given points (3, -6) and the slope -2 in: y - -6 = -2(x - 3).
Simplify this to get the final equation: y = -2x + 6.
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1. Calculate the sum of the infinite series S. = 16+4+1+....
Answer:
Step-by-step explanation:
Using the initial value a = 16 and the common ratio r = 1/4, we can use the equation for the sum of an infinite geometric series as |r| < 1:
S = a / (1-r)
= 16 / (1-(1/4))
= 16 / (3/4)
= 64/3
The sum of the series is 64/3.
What is a geometric sequence?A geometric sequence is one where each phrase is discovered by multiplying the term before it by the same number.
The given series is 16 + 4 + 1 +...
Note that each term of the series is 1/4 of the preceding term, therefore, the series is a geometric series with a common ratio of r = 1/4.
The sum of an infinite geometric series is:
s= a/(1-r)
s= 16/(1-1/4)
s = 64/3
Hence, the sum of the series is 64/3.
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What is the area of a rectangle with length 6 units and width 3 units?
Answer:
18
Step-by-step explanation:
Answer: 18
Step-by-step explanation: 6 x 3 = 18
WILL GIVE BRAINLIEST!! Give an example of a system of two linear equations in two variables with 0, 1, or infinitely many solutions. Explain how you can determine whether this system has 0, 1, or infinitely many solutions without graphing. What does this reveal about the relationship between the lines on the graph?
Write at least 150–300 words please
Answer:
Step-by-step explanation:
0 solution example
3x+2y=2
3x+2y=4
This is a zero solution example, because you can see that both equations are the same on the left, yet different on the right.
Infinite solution example
3x+2y=2
4y=4-6x
This is an infinite solution example because if you look at both equations, you can see that they are exactly the same.
One solution example
2x+3y=15
x-3y=3
This is an one solution example because if you add the equations you get 3x=18 x=6
plug it in, and you get that x=6, y=1
If a system a infinite solutions, that means that the lines overlap
If a system has no solutions, that means that the lines never touch, or that they are parallel
If a system has one solution, it means that the lines intersect at one point.
A system of two linear equations in two variables can have 0, 1, or infinitely many solutions. The number of solutions can be determined without graphing by comparing the slopes and y-intercepts of the equations. If the slopes are equal and y-intercepts are different, the system has no solution. If the slopes are equal and y-intercepts are equal, the system has infinitely many solutions. If the slopes are not equal, the system has exactly one solution.
Explanation:One example of a system of two linear equations in two variables with 0, 1, or infinitely many solutions is:
Equation 1: 2x + 3y = 8
Equation 2: 4x + 6y = 16
To determine the number of solutions in this system without graphing, we can use the concept of slopes. If the slopes of the two lines are equal and the y-intercepts are also equal, then the system has infinitely many solutions. If the slopes are equal but the y-intercepts are different, then the system has no solution. If the slopes are not equal, then the system has exactly one solution.
In this example, both equations have the same slope of ½; however, the y-intercepts are different. Therefore, this system has no solution.
This reveals that the two lines in the graph of this system are parallel and will never intersect.
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7-81. Aja and Emilie were riding their skateboards. They knew that they could ride 3 miles in 20 minutes.
b. If y represents the distance in miles and x represents the time in minutes, write an equation to
represent the distance traveled for any time.
Answer:
[tex]y=\frac{3}{20}x[/tex]
Step-by-step explanation:
We want to write an equation of the form '
[tex]y=mx+b[/tex]
Now [tex]m[/tex] is the slope of the line or 'rise/run', and it is
[tex]m=\frac{ \Delta y }{ \Delta x } =\frac{3miles}{20minutes} =\frac{3}{20}[/tex]
Now for [tex]b.[/tex]
Since at x=0 y= 0 (Aja and Emile haven't traveled any distance)
[tex]0=0+b\\b=0[/tex]
Thus we have the equation
[tex]y=\frac{3}{20}x[/tex]
Find the actual sum of 1 3/4+1 5/8 do the Turman how much David grew into years explain how you know your answer is reasonable
Answer:
3 3/8
Step-by-step explanation:
We assume your intended question is ...
"Find the actual sum of 1 3/4 + 1 5/8 to determine how much David grew in two years. Explain ..." (Proper word choice and punctuation help communication.)
The sum of the two given mixed numbers can be found several ways. One way is to write the fractions using a common denominator:
1 3/4 + 1 5/8 = 1 6/8 + 1 5/8 = (1 +1) +(6/8 +5/8) = 2 + 11/8 = 3 3/8
David grew 3 3/8 in two years.
__
Both numbers are near and slightly more than 1.5, so their sum will be near and slightly more than 3.
64=[(96 divided by 8) times 5]-42
Answer:
that statement is not true
Step-by-step explanation:
64=[(96÷8)5}-42
64={(12)5} - 42
64= (60)-42
64=18
but that with subtraction. if you multiply 60 by negative 42 you get -2520 which is still not true
What value of n makes the equation true? -2n + 1.8 =3.2
Answer:
-0.7
Step-by-step explanation:
-2n+1.8=3.2
-2n=3.2-1.8
-2n=1.4
n=1.4/-2
n=-0.7
a candy company packs lemon drops in the container size shown in the diagram. They need a larger container. Which choice will change the dimensions so that the volume is tripled.
Answer:
Option B) triple the height
Step-by-step explanation:
The rest of the question is the container has a shape of the cylinder and the options to select the answer.
The options are:
A) triple the radius
B) triple the height
C) triple the diameter
D) triple the circumference
=========================================
the container has a shape of the cylinder
The volume of the cylinder is = π r² h
It is required to choose which option is suitable so change the dimensions so that the volume is tripled.
So, the volume will be V' = ( 3 π r² h )
Check the options:
A) triple the radius
The new radius = 3r
∴ V = π (3r)² h = 9 π r² h
B) triple the height
The new height = 3h
∴ V = π r² (3h) = 3 π r² h
So, it is no need to check the other options.
The answer is option B
Note: both of option C and D will lead to the same result of option A
Can someone help me understand what I did wrong? I'm having trouble learning Eliminations.
Answer:
Step-by-step explanation:
2x + y = 5.....multiply by -3
3x - 2y = 4...multiply by 2
--------------------------
-6x - 3y = -15 (result of multiplying by -3)
6x - 4y = 8 (result of multiplying by 2)
-------------------------add
-7y = - 7 <===== here is one mistake.....its -7, not 7
y = -7/-7
y = 1
now sub 1 in for y in either of ur original equations to find x
not sure why u r multiplying again on ur paper when all u have to do is sub
2x + y = 5
2x + 1 = 5
2x = 5 - 1
2x = 4
x = 4/2
x = 2
solution is : (2,1)
the bad part about elimination is if there is a mistake made in the first part, it carries through to the end. So it is always best to check ur answers.
Count twenty of fifty equal parts
Answer:
I think 20/50 is the answer you're looking.
Answer:
20/50
Hope this helps :)
Step-by-step explanation:
Vega set up a coordinate
system with units of feet to locate the
position of the vegetables she planted
in her garden. She has a tomato plant
at (1, 3) and a pepper plant at (5, 6).
How far apart are the two plants?
Round to the nearest tenth if
necessary.
The two plants are 5 feet apart.
Step-by-step explanation:
Given,
Point of tomato plant = (1, 3)
Point of pepper plant = (5, 6)
Here,
[tex]x_1=1,\ \ \ \ \ y_1=3\\x_2=5,\ \ \ \ \ y_2=6[/tex]
Distance between two plants = [tex]\sqrt{(x_2-x_1)^2+(y_2-y_1)^2[/tex]
[tex]Distance=\sqrt{(5-1)^2+(6-3)^2}\\Distance=\sqrt{(4)^2+(3)^2}\\Distance=\sqrt{16+9}\\Distance=\sqrt{25}\\Distance=5[/tex]
As the unit is feet, therefore,
The two plants are 5 feet apart.
Keywords: addition, points
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In parallel lines cut by a transversal if m angle RNP =(8x+63) degree and m angle NRS = 5x degree
1. find angle measure of m angle RNP
2. Find angle measure of m angle NRS
Answer:
Part 1) [tex]m\angle RNP=135^o[/tex]
Part 2) [tex]m\angle NRS=45^o[/tex]
Step-by-step explanation:
The complete question in the attached figure
step 1
Find the value of x
we know that
[tex]m\angle RNP+m\angle NRS=180^o[/tex] ----> by supplementary angles (consecutive interior angles)
substitute the given values
[tex](8x+63)^o+5x^o=180^o[/tex]
Solve for x
[tex]8x+5x=180-63\\13x=117\\x=9[/tex]
step 2
Find the measure of angle RNP
substitute the value of x
[tex]m\angle RNP=(8(9)+63)=135^o[/tex]
step 5
Find the measure of angle NRS
substitute the value of x
[tex]m\angle NRS=5(9)=45^o[/tex]
Help ASAP
Simplify each expression.
1) 3(2p - 4) - (p + 8)=
2) -3(n + 3) - (n - 6)=
3) -4(7 + 5b) - 5(7b + 6)=
4) 8(2 - 5p) - (p - 6)
5) 8(n + 2) + 8(2n - 7)
6) -(6x + 4) - 2(-x + 1)
Answer:
In photomath
Step-by-step explanation:
1.) 6p-12 or 6(p-2)
2.) -4n-3
3.)-58-55b
4.) 22-41p
5.)8(3n-5) or 24n-40
6.)-2(2x+3) or -4x-6
Answer:
1) 5p - 4 2) -4n - 3 3) -55b -58 4) -41p + 22 5) 24n - 40 6) -4x - 6
Step-by-step explanation:
1) 3(2p - 4) - (p + 8)= 6p - 12 - p + 8 = 5p - 4
2) -3(n + 3) - (n - 6)= -3n - 9 - n + 6 = -4n - 3
3) -4(7 + 5b) - 5(7b + 6)= -28 - 20b - 35b - 30 = -55b -58
4) 8(2 - 5p) - (p - 6)= 16 - 40p - p + 6 = -41p + 22
5) 8(n + 2) + 8(2n - 7)= 8n + 16 + 16n - 56 = 24n - 40
6) -(6x + 4) - 2(-x + 1)= -6x - 4 + 2x - 2 = -4x - 6
The perfect squares between 61 and 102
Answer: 3 perfect squares
Step-by-step explanation: Between the numbers, 61 and 102, there are 3 perfect squares and they are 8 x 8, 9 x 9, and 10 x 10
I have also attached a list of perfect squares and put a yellow rectangle around the perfect squares between 61 and 102.
A Carpenter has a wooden stick that is 84 centimeters long. She cuts off 25% from the end of the stick. Then she cuts off the remaining stick into 6 equal pieces. What is the length of each piece
Answer:
10.5
Step-by-step explanation:
84×0.75=63
63÷6=10.5
help me please 10 points
Answer:
17z + 9 = 4z + 5
13z + 9 = 5 (you have to take the 4x to the opposite of the equal sign to subtract it)
13z = 5 - 9
13z = -4
z = -4/13
Exactly one solution
Giving brainliest please help :c
Answer:
4 ft
Step-by-step explanation:
missing height = 12 - 8 = 4 ft
Answer:
The missing height = 12 - 8 = 4ft
Step-by-step explanation:
The number of visitors to a sporting goods website is 1,940 today. This is 400% of the number of visitors on the first day the site was online. How many visitors did the website have on the first day?
Answer:
The sporting goods website had 485 visitors on the first day
Step-by-step explanation:
Let's answer the question correctly, this way:
Number of visitors to a sporting goods website today = 1,940 and 400% of the visitors on the first online day
How many visitors did the website have on the first day?
Let's use the Rule of Three Simple, this way:
x = Number of visitors to a sporting goods website on the first online day
Number of visitors Percentage
1,940 400%
x 100%
400 * x = 1,940 * 100
x = 194,000/400
x = 1,940/4 = 485
The sporting goods website had 485 visitors on the first day
What is y=-7/5x-3 when y=-10
Answer:
[tex]x=\frac{1}{5}[/tex]
Step-by-step explanation:
Step 1 :-
given [tex]y= \frac{-7}{5 x} -3[/tex]
substitute given y=-10
[tex]-10+3 = \frac{7}{5 x}[/tex]
[tex]-7 = \frac{-7}{5 x}[/tex]
cancelled (-7) on both sides, we get
[tex]1= \frac{1}{5 x}[/tex]
cross multiplication, we get
[tex]5 x =1[/tex]
[tex]x=\frac{1}{5}[/tex]
Final answer:- [tex]x=\frac{1}{5}[/tex]
verification:-
given [tex]y= \frac{-7}{5 x} -3[/tex]
substitute [tex]x=\frac{1}{5}[/tex]
we get y= -10
Write y=1/6x+5 in standard form using integers Please
The standard form of the line is [tex]6y-x=30[/tex]
Step-by-step explanation:
The equation of the line in this problem, written in the point-slope form, is
[tex]y=\frac{1}{6}x+5[/tex] (1)
We want to rewrite it in the standard form with integers, that means in the form
[tex]ax+by=c[/tex]
where a, b and c are integer numbers.
We start by manipulating eq.(1), by multiplying both terms of the equation by 6:
[tex]6y = \frac{1}{6}x\cdot 6+5\cdot 6\\6y=x+30[/tex]
Now we subtract [tex]-x[/tex] on both sides:
[tex]6y-x = x-x+30[/tex]
So we find
[tex]6y-x=30[/tex]
Which is the standard form of the line.
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Referring to the figure, the circle shown is drawn on grids. Find
A ÷ r and A ÷ r2 (Worth 45 points! Please help!!)
Answers:
a) [tex]\frac{A}{r}=2.5 \pi=7.85[/tex]
b) [tex]\frac{A}{r^{2}}=\pi=3.14[/tex]
Step-by-step explanation:
Assuming each grid has dimensions of 1x1, the radius of this circle is:
[tex]r=2.5[/tex]
On the other hand, the area of a circle is:
[tex]A=\pi r^{2}[/tex]
With this information we will solve this exercise:
a) [tex]\frac{A}{r}[/tex]
[tex]\frac{\pi r^{2}}{r}=\pi r[/tex]
[tex]\pi r=(3.14)(2.5)=7.85[/tex]
b) [tex]\frac{A}{r^{2}}[/tex]
[tex]\frac{\pi r^{2}}{r^{2}}=\pi=3.14[/tex]
Ken drinks 2/7 of a carton of milk each day.How much milk dose he drink in 3 days?
Answer:
6/7 of a carton
Step-by-step explanation:
3 x 2= 6
6/7
What is the slope of the line represented by the equation ? 3x + 4y = 8
Answer:
-3/4
Step-by-step explanation:
3x + 4y = 8....find the slope
in y = mx + b form, the slope can be found in the m position...so lets put this equation in y = mx + b form
3x + 4y = 8.....subtract 3x from both sides
4y = 8 - 3x.....now divide both sides by 4
y = 2 - 3/4x....rearrange
y = -3/4x + 2
y = mx + b
y = -3/4x + 2
as u can see, the number in the m position (the slope) = -3/4
The slope of the line represented by the equation 3x + 4y = 8 is -3/4.
Explanation:The slope of a line can be determined from its equation in slope-intercept form, which is of the form y = mx + b. The coefficient of x, m, represents the slope of the line. In the given equation 3x + 4y = 8, we can rearrange it to the slope-intercept form by isolating y: 4y = -3x + 8, y = (-3/4)x + 2. Therefore, the slope of the line represented by this equation is -3/4.
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