Answer:
A,c,d
Step-by-step explanation:
The solution is Option A.
If the volume is 47 cm³ , then the height of the cone is approximately 5 cm and volume of cone is given by ( 1/3 ) πr²h
What is a Cone?
A cone is a three-dimensional shape in geometry that narrows smoothly from a flat base (usually circular base) to a point(which forms an axis to the center of base) called the apex or vertex.
The volume of a cone is given by the equation
Volume of Cone = ( 1/3 ) πr²h
where r is the radius of the cone
h is the height of the cone
Given data ,
Let the radius of the cone be = r
Now , the value of r = 3 cm
So , the equation will be
The volume of the cone is given by the formula ,
Volume of Cone = ( 1/3 ) πr²h
where r is the radius of the cone
h is the height of the cone
a)
If the volume is 47 cm³, then the height of the cone is approximately 5 cm
So , substitute the values in the equation , we get
Volume of Cone = 47 cm³
So ,
( 1/3 ) πr²h = 47 cm³
Radius of cone r = 3 cm
Height of cone h = 5 cm
( 1/3 ) πr²h = 47 cm³
( 1/3 ) x 3.14 x 3 x 3 x 5 = 47
3.14 x 15 = 47
47 = 47
Therefore , the solution is true
Hence , If the volume is 47 cm³, then the height of the cone is approximately 5 cm and the volume of cone is given by ( 1/3 ) πr²h
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please help me again
Answer:
still dk
Step-by-step explanation:
solve the system: -2x+2y=4 and x+y=6
Answer:
(2,4)
Step-by-step explanation:
Answer:
(2,4)
Step-by-step explanation:
The answer is where the two lines cross
x=2
y=4
An item with an original price p dollars is on sale at 30% discount. Which expression is not equivalent to the price of the item with the discount?
Answer:
p+_(n) + 70%
Step-by-step explanation:
finished
Factor: 2x^2-3x-20=0
Answer:
x=-5/2,4
Step-by-step explanation:
Find the slope of the line graphed below
Answer:
10
Step-by-step explanation:
The slope of the line is 10
Scott makes and sells bracelets. He spends $28 on supplies, and he sells
each bracelet for $6. Write an expression that represents his profit for
selling b bracelets.
Hi there,
Recall how each bracelet sells for 6 dollars.
Hence, the expression for selling b bracelets is 6b, where b is the number of bracelets sold for the price of 6 dollars.
Profit is the actual amount of money that is earned after you subtract expenses from the total sales.
For instance, if you make $100 from selling items, and you spent $25 on your supplies, then your profit is [tex]100-25=75[/tex].
In this case, you need to subtract the $28 spent on supplies from the amount of money that you have made, which is the expression 6b.
Hence, the expression for the profit is: [tex]6b-28[/tex]
Hope that helps.
gonzalo nacio el 18 de sptiembre de 1945 si bertha nacio cuatro decadas y un lustro cual es la fecha de nacimiento de bertha
Answer: Bertha nació el 18 de septiembre de 1990.
Step-by-step explanation:
Gonzalo nació el 18 de septiembre de 1945.
Bertha nació cuatro décadas y un lustro después.
Una década son 10 años
Un lustro son 5 años
Entonces 4 décadas y un lustro son:
4*10 años + 5 años = 45 años
Esto significa que Bertha nació 45 años después que Gonzalo.
Entonces si Gonzalo nació en 1945, Bertha nació en el año:
1945 + 45 = 1990
Bertha nació el 18 de septiembre de 1990.
La fecha de nacimiento de Bertha es el 18 de septiembre de 1990.
How many years does a decade have?A decade is composed of 10 years. So, if there are 'x' decades, then that means there are going to be [tex]10 \times x[/tex] years in it.
For this case, we are given that:
Date of birth of Gonzelo is 18th of Sept. 1945
Bertha born after 4 decades and 5 years of Gonzelo's birth.
4 decades = 4 times 10 = 40 years
Thus, 4 decades + 5 years = 40 + 5 = 45 years.
45 years after 1945 uis 1945 + 45 = 1990
Thus, date of birth of Bertha is 18th Sept. 1990
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The library is 5 miles from the post office. How many yards is the library from the post office?
A) 5 yards
B) 352 yards
C) 8,800 yards
D) 17,600 yards
What is the mass of 2.5 moles of carbon dioxide?
Answer:
110 grams
Step-by-step explanation:
CO2 molecule is made up of Carbon (atomic mass =12) and oxygen (atomic mass=16).
So first finding the mass of 1 molecule of CO2 which is equals to
= mass of 1 carbon atom + masses of 2 oxygen atom, we get
= 12+(16*2)= 12+32= 44 a.m.u.
Now 1 molecule of CO2 has mass 44 amu so mass of 1 mole CO2 will be 44 grams.( 1 a.m.u.=1.6729*10^-33 grams. 1 mole = 6.022*10^23, so 44 a.m.u.=73.6076*10^-33 grams approx. For one mole CO2, 73.6076*10^-33*6.022*10^23 which is approximately equals to 44 grams. )
1 mole CO2= 44grams, so 2.5 moles = 44*2.5= 110 grams
So our answer is 110 grams.
lowkey hope this helped you, good luck whatever you need it for Imaooo
dose anyone one know the equation to this??
Which is the equation for a line that passes through the points (3 , 1) and (4 , -1) ?
y = -2x - 7
y = 2x - 7
y = 2x + 7
y = -2x + 7
Answer:
Y= -2x+7
Step-by-step explanation:
I need 3-5 ASAP PLEASE
Can someone Please answer some of these questions Please ASAP Thank you:)) (20 points)
Answer:
for #1 it's 1, 4, 5, 6
for #2 it's both lines have the same slope
for #3 it's both lines have a different y-intercept
Step-by-step explanation:
#1 explanation: all of them have the y-intercept of -8
ex. y = 3x (- 8) y = 5x (-8) y = 2x (-8) y = (1/3)x (-8)
#2 explanation: both have a slope of (1/4)
#3 explanation: y = (1/4)x there is not y-intercept that we know of and y = (1/4)x - 5 the y-intercept is at -5 therefore the y-intercepts are different
Solve the Equation n/10 + 6 = 11
Step-by-step explanation:
n/10+6=11
n/10=11-6
n/10=5
n=5x10
n=50
Answer: n=50
5x + 4 = -6
please step by step explanation
Answer:
x=-2
Step-by-step explanation:
5x+4=-6 so basically what you want to do is try to get x by itself
step 1 subtract 4 from each side
5x=-10
step 2 divide each side by 5
x=-2
How much solutions does this equation have?
2x+y=3
2y=-4x+6
pls answer,, show ur work, have a great day :)) !!
Answer:
All solutions or infinite.
Step-by-step explanation:
Turn 2y = -4x + 6 into standard form - divide by 2
Y = -2x + 3
2x + y = 3
Substitute the y equation in for y.
2x - 2x + 3 = 3
The x variables cancel out.
3 = 3
Which is true so it means all solutions.
Hope this helps.
I'm stuck on my math homework. Need help! Please solve!
Answers:
Sam's current age = 24The mother's current age = 48=========================================================
Explanation:
s = Sam's age right now
2s = the mother's age right now, since she is twice as old as Sam currently.
In 12 years time, Sam will be s+12 years old.
12 years ago from this current year, the mother was 2s-12 years old.
Since we're told these future and past ages line up, this means s+12 and 2s-12 are the same value
Set the expressions equal to one another and solve for s.
s+12 = 2s-12
s-2s = -12-12
-s = -24
s = 24
Sam is currently 24 years old.
His mother is currently 2s = 2*24 = 48 years old.
12 years ago, his mother was 2s-12 = 48-12 = 36 years old.
12 years from now, Sam will be s+12 = 24+12 = 36 years old.
Since we get 36 each time, this confirms we have the correct answers.
Which of the following expressions simplifies to a negative number? Select all that apply.
(-1)(-1)(-1)(-1)
(-1)(-1)
(-1)(-1)(-1)
(-1)(-1)(-1)(-1)(-1)
Answer:
Wait like all of them or some? I think it's 3 and 4.
Step-by-step explanation:
You add the two negative (negative + negative =positive). 3 and 4 have an extra left over which makes one negative, unless I did that wrong
Answer: 3 and 4
Step-by-step explanation:
If it is an odd number of (-1)s then it is negative. if it is an even number of them then it is positive.
What value of n will make this equation correct. 3/10 n = 4/5
Answer:
n =[tex]\frac{5}{10}[/tex]
Step-by-step explanation:
Answer:
n= 2 and two thirds
Step-by-step:
this is the equation
3/10n=4/5
so to get n by itself, you multiply both sides by 10/3. I did 4/5 times 10/3 and I got 2/2/3, or two and two thirds
what is the y-intercept in the equation y=2x+5
Answer:
y intercept=5
Step-by-step explanation:
to find Y intercept substitute the value of x as 0
Answer:
the y intercept is 5
Step-by-step explanation:
slope = mx + b
in your case:
y = slope
2x = mx
5 = y intercept
SOMEONE PLEASE HELP ME OUT. Find the measure of the numbered angles in each rhombus
Answer:
The answer are
[tex]m < 1 = 41 \\ m < 2 = 90 \\ m < 3 = 41 \\ m < 4 = 49[/tex]
Step-by-step explanation:
I am a math teacher. If you need any explanation on math you can communicate with me on Whats on this number 01557831028
HURRY: use Pythagorean theorem to solve for the missing variable
Mai spent $2 and has less than $20.
Answer:
Mai has $18
Step-by-step explanation:
Answer:
x−2 < 20
Step-by-step explanation:
80% of C is 11 what is C
Answer:
c = 13.75
Step-by-step explanation:
Converting the words in the problem into a math equarion, we get:
80% * c = 11
0.8c = 11.
Simplifying, we get:
8c = 110
c = 13.75
Answer:
55
Step-by-step explanation:
Devon draws one marble from a bag containing 5 red, 3 green, and 4 yellow marbles. What is the probability that Devon draws a green marble?
Answer:
3/12 or 1/4 after simplifying
Step-by-step explanation:
3 chances of getting green because there are 3 green and there is a total of 12 marbles so 3 out of 12, which is equal to one fourth.
Please help thank you
Answer:
x=35
Step-by-step explanation:
3x+15=2x+50 (opposite angles are equal)
3x=2x+35
x=35
can anyone please help me with question need help please
Step-by-step explanation:
there is no reason in maths only the method
True or False: A function must have a different output for each input. A True B False
Answer:
true
Step-by-step explanation:
4(x+2)-12=3(x-2) solve for x
Answer:
x= -2
Step-by-step explanation:
is this right!? HELP ASAP!!! WILL GIVE BRAINLIEST make sure ypur answer is correct!!