Answer:
r = √3V/√πh
Step-by-step explanation:
V = 1/3πr²h
where,
V = volume of the cone
r = radius of the cone and
h = height of the cone.
Rewrite the formula to solve for the positive value of r in terms of h and V.
V = 1/3πr²h
V = 1/3 * π * r² * h
r² = V ÷ 1/3 * π * h
r² = V ÷ πh/3
r² = V × 3/πh
r² = 3V / πh
find the square root of both sides
√r² = √3V / πh
r = √3V/πh
Also written as
r = √3V/√πh
What is the slope of a line that goes through the points (1, -5) and (-3, 2)?
- 7/4
- 4/7
- 3/4
- 4/3
Answer:
-7/4
Step-by-step explanation:
change in y over (/) change in x
or
f(b) - f(a) over (/) b - a
= 2-(-5) / -3-1
= 2+5 / -3-1
= 7 / -4
Is Q the midpoint of line segment PR? Justify your answer with numbers and words.
Answer:
[tex]5x+8x+10-3=72\\13x=65\\x=5\\reapplying\\5(x+2)=5*7=35\neq (\frac{72}{2}=36 )[/tex]
No it's not the Midpoint
Eddie bought 3 train tickets 17.00 each. If he paid with three $20 bills, how much change did Eddie receive?
Answer:
Step-by-step explanation:
Think of it as if he paid for each ticket with one $20 bill.
He gets $3 change from each one so his total change is $(
Can’t figure this one out
subtract 8x-8y+9 from 5x-8y-z
Solve the system of equations. Write you answer as an ordered pair.
X - 3y = -13
3x + 7y = 25
Answer:
Step-by-step explanation:
x - 3y = -13
x = -13 + 3y
3 * (-13 + 3y) + 7y = 25
-39 + 9y + 7y = 25
16y = 64
y = 4
3x + 7 * 4 = 25
3x = -3
x = -1
Answer: (-1, 4)
Can someone help me? It's urgent and thank you!
Answer:
35 or A
Step-by-step explanation:
This is a combinations problem because the order doesn't matter (it's a council, not like president and v.p.). C(7, 3) is 7!/(4!*3!) = 7*6*5/3*2 = 35. Hope this helps! :)
15 point question!
Hi can you help? Thanks! *if you are gonna answer, actually answer please!*
Brainly if you get it right!
Answer:
The answer is 129
Step-by-step explanation:
5(exponent 4)/5 = 125 +4 equals 129
I think
Answer:
129
Step-by-step explanation:
5^4 / 5 + 4
We know that a^b / a^c = a^(b-c)
5^(4-1) +5
5^3 +4
125 +4
129
which table shows a proportional relationship between x and y?
Angle Measurements 84 degree
Answer:
yes angle measures 84°as they are alternate angles
in a math final please help asap
find the angle r show ur work
Answer:
The measure of angle R is 112 degrees
Step-by-step explanation:
Using the given markings, we can see that we have an isosceles triangle
so RT is also 3x-2
Mathematically, the sum of the interior angles of a triangle is 180:
Thus;
9x + 4 + (3x-2) + (3x-2) = 180
9x + 3x +3x + 4-2-2 = 180
15x = 180
x = 180/15
x = 12
Recall; Angle R is 9x + 4
= 9(12) + 4 = 108 + 4 = 112
Please help, it's timed!
Step-by-step explanation:
Its C
Angle measurements 110 degree help find out the balance at the top
Answer: 70 degrees because 180-110= 70. Hope this helps
Step-by-step explanation:
how do you find x in this? I need help asap!!
Answer:
Step-by-step explanation:
According to the theorem, the angle measuring 110 is one-half the measure of the arc it intercepts. That means that the major arc (this arc of which I'm speaking) measures 110 * 2 = 220.
Since the outside of a circle, regardless of how big or small the circle is, has a degree measure of 360, then x = 360 - 220 so
x = 140°
what is the probability of rolling a number that is greater than 4 on a number cube?
a.) 1/6
b.) 1/3
c.) 1/2
d.) 2/3
=========================================================
Explanation:
E = event space = {5,6}
The event space represents the set of all things we want to happen: namely rolling a 5 or a 6, since they are larger than 4.
S = sample space = {1,2,3,4,5,6}
The sample space is the set of all possible outcomes, whether we want them to happen or not. We have 6 possible outcomes.
Divide the number of items in each set
n(E) = 2
n(S) = 6
probability = n(E)/n(S) = 2/6 = 1/3
There's a 1 in 3 chance of rolling a number greater than 4.
How many marble do you need to balance to scale
A. 4
B. 3
C. 2
D. 1
Answer: its B.
Step-by-step explanation:
have a good day hope this help
Answer:
B.3
Step-by-step explanation:
just divide 6 by 2
need help pls. will mark brainliest
Solve using square roots no links plz.
helpppp meee pleaseeeeewee
We can't see what you are talking about. send another one.
The total surface area of a cube is 433.5 cm2.
Find its volume.
Answer:
Step-by-step explanation:
The area of 1 face is s^2
The area of 6 faces is 6s^2
6s^2 = 433.5 Divide by 6
s^2 = 433.5 / 6
s^2 = 72.25 Take the square root of both sides
sqrt(s^2) = sqrt(72.25)
s = 8.5
Normally you would find the volume of parallelepiped by using L * W * H
Since L W and H are all equal in a cube, the volume = s^3
S^3 = 8.5^3 = 614.125
Which value cannot represent the probability of an event occurring
Answer:
zero
Step-by-step explanation:
everything is theoretically possible
A-container holds 6 cups of yogurt the nutrion label reads that a serving size is 1/3 cups how many servings are in the cointaner
Answer:
1/3 = 1 serving
2/3 =2 servings
1 cup= 3 servings
so if one cup is 3 servings we can multiply 3 x 6 for an answer of 18 servings
If d(x) = x2 - 7x - 7, find d(x - 1).
Answer: x^2-9x+1
Step-by-step explanation:
x^2-7x-7 d(x-1)
(you would just replace x to (x-1)
(x-1)^2-7(x-1)-7
(solve by square rooting (x-1)(x-1) then foil)
x^2-9x+1
$2000 at 9% for 1 year
Answer:
$180
Step-by-step explanation:
9% = 0.09
2000 * 0.09 = 180
draw and label a line a line segment a ray and an angle
Answer and Step-by-step explanation:
Everything is in the picture.
Lines are forever, so they have an arrow at each end.
Line segments have a dot at each end, so they don't go on forever.
A ray has a dot on one end and an arrow on the other, so one side goes on forever.
An angle can be acute, right, or obtuse.
#teamtrees #PAW (Plant And Water)
Mrs. Newcomer went to Giant for groceries. She paid $6 for 2 pounds of grapes.
How much would 7 pounds of grapes cost?
Please help me out I really need theese answers
Answer:
b
Step-by-step explanation:
Gillian swears her computations for the
following equations prove they do not
intersect. Her brother who just finished
learning about intersecting lines told her they
definitely intersect because the slopes are
different. Gillian remembered that logic from
class and then decided she needed to be able
to prove intersection by using algebra.
Although there are multiple strategies, how
might she prove intersection without graphing
of the following equations?
4x +3y = 6 and 6x + 2y = 10
Step-by-step explanation:
Given
Two lines are [tex]4x+3y=6[/tex] and [tex]6x+2y=10[/tex]
Two lines [tex]a_1x+b_1y=c_1[/tex] and [tex]a_2x+b_2y=c_2[/tex] will intersect when
[tex]\dfrac{a_1}{a_2}\neq \dfrac{b_1}{b_2}[/tex]
for the given lines
[tex]a_1=4,a_2=6,b_1=3,b_2=2[/tex]
[tex]\therefore \dfrac{4}{6}\neq \dfrac{3}{2}\\\\\dfrac{2}{3}\neq\dfrac{3}{2}[/tex]
Hence, lines are intersecting
what is the range of the data below
Answer:
u need to provide data where is data
Solve for x in the equation
Answer:
[tex] {x}^{2} + 2x + 1 = 17 \\ {x}^{2} + 2x - 16 = 0 \\ x = \frac{ - b± \sqrt{ {b}^{2} - 4ac} }{2a} \\ x = \frac{ - 2± \sqrt{68} }{2} \\ x = \frac{ - 2±2 \sqrt{17} }{2 } \\ x = - 1± \sqrt{17} [/tex]
