Answer:
(1/3) Pi r^2 h
Step-by-step explanation:
The volume of a cone (or pyramid, for that matter) is 1/3 the area of the base times the height.
Cones have bases that are circles, so their areas are Pi r^2, usually written [tex]\pi r^2[/tex], Pi times the radius squared.
[tex]V=\frac{1}{3}\pi r^2h[/tex]
A number x added to a number y is equal to 100. The number y is also equal to 10 more than the number x doubled. Write and solve a linear system to find the value of x and y.
Answer: x + y=100---equation 1
y =10+ 2x-----equation 2
x=30, y=70
Step-by-step explanation:
Given that
x added to a number y is equal to 100 which means that
x + y=100
and also that
y is also equal to 10 more than the number x doubled which is
y =10+ 2x
we have the linear systems to solve the equations as
x + y=100---1
y =10+ 2x-----2
Solving
Putting the value of y =10+ 2x in equation 1
x +10+ 2x =100
10+3x=100
3x=100-10
x=90/3=30
x=30
y=10 +2x = 10+2x30 =70
Mr. Weaver has 36 history students. The ratio of girls to boys is 2:1. How many girls does he have in his class?
Answer:
24 girls
Step-by-step explanation:
24:12
2:1
A smaller triangle is four times smaller than a larger triangle. If the smaller triangle has a measurement of 27.1 mm for its longest side. What is the measurement of the longest side of the larger triangle?
A. 107.2 mm
B. 107.4 mm
C. 108.2 mm
D. 108.4 mm
Answer: If the smaller triangle has a measurement of 10.47 mm for its longest side. What is the measurement of the longest side of the larger triangle? A.
hope this helps
Step-by-step explanation:
The answer is D. 108.4mm got it right on edge.
please help me !!!!!!!!!!!!
Answer:
The answer is D
Step-by-step explanation:
A 180 rotation on 1,1 which is the center will rotate it onto itself.
A frog can hop at a maximum speed of about 60 feet every 4 seconds. How far can the frog go in 30 seconds?
Answer:
450 feet
Step-by-step explanation:
60ft = 4 seconds
x ft = 30 seconds
(cross multiply)
60 * 30 = 4x
1800= 4x
(divide both sides by 4)
x= 1800/4= 450
Answer:
ur answer would be 450 feet
Step-by-step explanation:
srry if wrong hope this helps<3
PLEASE ANSWER WILL GIVE BRAINLIEST
50 POINTS
approximate the solutions to this system.
y = 3x2 + x − 6
y = x − 4
Round your answers to the nearest hundredth.
Answer:
Its actually y=-4.82 but ok
Step-by-step explanation:
Find the area of the shaded region. The radius of the large circle is 10 m. Round answer to the nearest hundredth.
Answer:
hello the figure related to your question is missing attached below is the missing figure
answer : 157.08 m^2
Step-by-step explanation:
Calculate the area of the shaded area
= Area of the large circle - Areas of the small circles
= (( [tex]\frac{\pi }{4}[/tex] ) * D^2) - 2( ( [tex]\frac{\pi }{4}[/tex] ) * d^2 ) given that the small circles are congruent
= (( [tex]\frac{\pi }{4}[/tex] ) * 20^2 ) - 2 ( ( [tex]\frac{\pi }{4}[/tex] ) * 10^2 )
= 314.16 - 157.08
= 157.08 m^2
Taylor had a bag of 28 marbles. 5 red, 9 blue, 8 yellow, and 6 black. If Taylor pulled out a yellow one and DID NOT put it back in. What is the
probability of pulling out a blue marble (SIMPLIFY YOUR FRACTION).
Blank 1:
Blank 2:
Answer: 1/3
Step-by-step explanation:
Number of red marbles = 5
Number of blue marbles = 9
Number of yellow marbles = 8
Number of and black marbles = 6
Total number of marbles = 28
If Taylor pulled out a yellow one and didn't replce it, there'll be 27 marbles left since one has been removed, then the probability of picking blue marbles will be:
= Number of blue marbles / Total marbles
= 9 / 27
= 1/3
The probability of picking a blue marble is 1/3.
A recipe uses 3 eggs for every 8 cups of flour. What is the ratio of eggs to flour in the recipe
Answer:
3:8
Step-by-step explanation: :)
Answer:
3 eggs : 8 cups of flour
=3:8
The population of village increases by 2% every year. The current population is 1000. What will be the population after 2 years?
Answer:
1040 approx
Step-by-step explanation:
Given data
Rate = 2%
Population= 1000
Time = 2 years
We can apply the expression below to find the population after 2 years
A= P(1+r)^t
Substitute
A= 1000(1+0.02)^2
A=1000(1.02)^2
A=1000*1.0404
A=1040.4
Hence the population is 1040 approx
Which M.A.D. would show the most variability: 0.5, 1, 1.5, 2
Which data set has a variation, or mean absolute deviation, similar to the data set in the given dot plot
Answer:
The anwser is C
Step-by-step explanation:
i did the test
Help not much time left its due in 20 mins
Answer:
The slope is 2/3
Step-by-step explanation:
To get from one dot to the next...
You go up 2 units and to the right 3 units
1. x2 + 9x + 20
2. x2 + 7x + 12
3. x2 + 8x + 15
4. x2 + 7x + 12
5. x2 + 11x + 10
6. x2 + 7x + 6
7. x2 + 5x + 4
8. x2 + 10x + 21
9. x2 + 10x + 16
10. x2 + 10x + 9
11. x2 + 12x + 20
12. x2 + 15x + 14
13. x2 + 13x + 42
14. x2 + 9x + 18
15. x2 + 16x + 60
Answer:
1) (x+5)(x+4)
Step-by-step explanation:
What is 52% of 25? i got 13 is that correct??
Answer:
Yes that is correct
Step-by-step explanation:
52 x 25 = 1,300
1300/ 100= 13
explain how your know that 88is a solution to the equation 1/8 R = 11 complete the sentences
The word solution means to
88 is a solution to 1/8 R = 11 because
Answer:
In this equation R would equal 88 because it satisfies the equation.
Step-by-step explanation:
You must solve for R by isolating the variable(which is R). To move the 1/8, multiply both sides by 8. You would do this because 8 is the reciprocal of 1/8. With R on it's own, to keep both sides equal multiply 11*8. That equals 88, which satisfies the equation, which is why 88 is the solution.
Hope this helps :)
Please help me with this problem!! thank you!
Answer:
its number 3.
Step-by-step explanation:
If 3x – 2 (2 + 1) = 4, then 5x =?
Answer:
50/3
Step-by-step explanation:
For x
3x-2(2+1)=4
3x-2(3)=4
3x-6=4
3x=4+6
3x=10
x=10/3
as we have to find 5x=?
5(10/3)
50/3
Chad wants to plant daisies in his new planter. How much potting soil should he buy to fill the
planter?
Assume that t = 3.14.
Answer:the answer is 2.713inches3
Step-by-step explanation:
How I know I just did This problem and get it correct
Please help me ASAP
NO LINKS or files
Answer:
1 (-9, -4)
2 (-6, 2)
Step-by-step explanation:
1- when you reflect along the x axis keep the x the same and change the y.
2- when you reflect along the y axis keep the y the same and change the x.
Write an expression that matches; “8 less than z”
Answer:
ᗴ᙭ᑭᖇᗴՏՏIOᑎ:[tex]z - 8[/tex]
If (x - 2)2 + 5(x - 2) = -6, which of the following could be the value of x - 2?
A
-1
B
-3
C
-4
D
-5
Answer: A. -1
Step-by-step explanation:
(x - 2)2 + 5(x - 2) = -6
2x-4 + 5x -10= -6
Combine like terms
7x-14=-6
Add 14 to both sides
7x=8
Divide
X= 8/7 or 1.14 (rounded)
1.14 - 2= -0.86 which can be rounded to -1
Helppppp pleaseeeee
Answer:
-1
Step-by-step explanation:
PLEASE HELP ME ANSWER BESTIES !!!
I would say 12 and 14 because if you were to evaluate that square root, you would get −13.0384048104 and that would lie between 12 and 14.
If I'm wrong, sorry.
What is the mean for the data set below
Answer:
B) 8.5
Step-by-step explanation:
[tex]8+10+6+4+12+6+8+14=68\\\\\frac{68}{8} =\boxed{8.5}[/tex]
Option B should be the correct answer.
Hope this helps.
please answer correctly !!!!! Will mark Brianliest !!!!!!!!!!!!!!
Answer:
There are 4 boys for every 6 girls (4 : 6 ratio)
I need help with matching the variable to its correct length
Is there a photo to show us what the variables are?
Last season, Ken made 73% of his free throws. If he attempted 59 free throws all season, estimate how many free throws he made. F 15 H 45 G 38 J 60
Answer:
H 45
Step-by-step explanation:
Given data
Total number of free throws= 59
he made 79%
Hence the number of throws made
=79/100*59
=0.79*59
=46.61
Approximately he made 45 of the throws
please help me ahhh im doing 8th grade math with pythagorean theorem i really need help please 15 points!!
FREE PTS! What is something that annoys you? (pet peeves)
Answer:
people not rinsing out they dirty dishes
Step-by-step explanation:
Answer:
When people like pick me girls are like, oh my gosh im so ugly I wish I was pretty. To get everyone's validiation or to be cute its annoying.
Anyways have a great day :)
