a metallic sphere of radius 10 .5 cm is melted and then recast into small cones each of radius 3.5 cm and height 3 cm the number of such cone is

Answers

Answer 1

Answer:

1=1+2

Step-by-step explanation:

2+2+3+7\

Answer 2

Answer:

Step-by-step explanation:

Number of cones = Volume of Sphere/Volume of one cone

Volume of sphere = (4/3)πr³

[tex]=\frac{4}{3}\pi *10.5*10.5*10.5\\\\=4*\pi *3.5*10.5*10.5\\\\=1543.5\pi cubic cm[/tex]

Volume of cone= (1/3)πr²h

[tex]=\frac{1}{3}*\pi *3.5*3.5*3\\\\=\pi *3.5*3.5\\\\=12.25\pi cubic cm[/tex]

Number of cones = 1543.5π / 12.25π

       = 126 cones


Related Questions

Jen buys 4 tires for $272.

What is the cost of 1 tire?

Answers

Divide the total cost by 4:

272 / 4 = 68

It cost $68 for 1 tire

Answer:

68

Step-by-step explanation:

272/4=68

15 POINTS + BRAINLIEST
true or false box plot question

Answers

Answer:

I believe both are true

Step-by-step explanation:

Answer:

a) false

b) true

Step-by-step explanation:

25% people spent between 10 and 35

The box shows that 50% of the people spent 10 - 40

Polygon ABCD is defined by the points A(-4,2) B(-2, 4), C(1, 3) & D(2,2). Match the coordinates of the points of the transformed polygons to their correct values

Answers

Answer:

D'(-2, 2); C''(3, -1); A'''(4, -2); and B''(4, 2)

Step-by-step explanation:

See attachment for the figure.

For D', rotating the point (2, 2) 90° counterclockwise. This maps each point (x, y)→(-y, x); it takes (2, 2)→(-2, 2).  

For C'', rotating the point (1, 3) 90° clockwise.  This maps each point (x, y)→(y, -x); it takes (1, 3)→(3, -1).

For A''', rotating the point (-4, 2) 180° clockwise.  This maps every point (x, y)→(-x, -y); it takes (-4, 2)→(4, -2).

For B'', rotating the point (-2, 4) 270° counterclockwise.  This is the similar as rotating the point 90° clockwise.  This maps every point (x, y)→(y, -x); it takes (-2, 4)→(4, 2).

I have the following question on an assignment. I have no idea how to factor to variables that aren't there.

[tex]x^2 + 7x + 10[/tex]

Answers

Answer:

I have attached the work to your problem below.

I hope this helps!

a. How long is 50% of 60 minutes?

Answers

Answer:

30 mn

Step-by-step explanation:

You need to calculate :

60 × 50% = 60×(50÷100)

                =3000÷100

                = 30

Help ya girl out please

Answers

Answer: 2,592











Calculator

write a story pleasee marking brainiest!

Answers

Answer:

2. a^3+2^3=24

1. Jack has 24 pieces of candy and divided them into groups of 3. He put 2 pieces in each group. How many more are in each group?

Step-by-step explanation:

im not sure if this is correct but i tried sorry.

A rectangular swimming pool is 10 meters long and 4.5 meters wide. If the volume of the
water in the pool is 72 cubic meters, how deep is the water?
(4 Points)
Hin Volume
h Identh

Answers

Answer: 1.6 meters deep

Step-by-step explanation:

LxWxH

10x4.5 = 45

45x1.6 = 72

Answer:

[tex]1.6m[/tex]

hope this helps

brainliest appreciated

good luck! have a nice day!

Solve the inequality

-7x + 12 = 75

Answers

Answer:

12/75 = 4/25

Step-by-step explanation:

Answer: x = -9

Explanation:

PLEASE HELP ASAP, EXTRA POINTS, CORRECT ANSWER ONLY!

Mr. Green tells you that a right angle has a hypotenuse of 13 and a leg of 5. She asks you to find the other leg of the triangle. Whats is your answer??

Answers

Answer:

Length of leg ⇒ 12

Step-by-step explanation:

Knowing this is a right angle triangle, let us apply Pythagorean Theorem to solve for the length of this other leg, which we can assign as x;

x^2 + 5^2 = 13^2 ⇒ square 5 and 13,

x^2 + 25 = 169 ⇒ subtract 25 from either side of equation,

x^2 = 144 ⇒ Take square root on either side,

Solution; Length of leg ⇒ 12

compute: (3.5· 2/7 − 2/3 )÷16

Answers

Answer:

≅ 0.02083333

Step-by-step explanation:

(3.5 * 2/7 - 2/3)÷16 = 1

48

≅ 0.02083333

1: Conversion a decimal number to a fraction: 3.5

2: Multiple: 3.5 * 2

7

= 7 · 2

2 · 7

= 14

14

= 1 · 14

1 · 14

= 1

3: Subtract:

4: Divide

Hope this helps.

1/48 is the value of  (3.5· 2/7 − 2/3 )÷16.

What is Expression?

An expression is combination of variables, numbers and operators.

(3.5 × 2/7 − 2/3 )÷16

Three point five times of two by seven minus two by three divided by sixteen.

Three point five times of two is 2 is seven

(7/7-2/3)÷16

(1-2/3)÷16

(1/3)÷16

1/3×1/16

1/48

Hence, 1/48 is the value of  (3.5· 2/7 − 2/3 )÷16.

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Algebra sucks help me

Answers

Answer:

The answer would be D

Step-by-step explanation:

It is the only one that makes sense ;-;

(hope this is correct)

A student got 78 marks out of a possible 120. Express the students mark as a percentage

Answers

The answer is 65%


(78/120)*100

=65%

The student's mark can be expressed as 65%.

To express the student's mark as a percentage, you need to divide the number of marks obtained by the possible marks and multiply by 100.

In this case, the student got 78 marks out of a possible 120.

Percentage = (Marks Obtained / Possible Marks) * 100

Percentage = (78 / 120) x 100

Percentage = 0.65 x 100

Percentage = 65%

Therefore, the student's mark can be expressed as 65%.

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what is the answer ?

Answers

Answer:

-3x and -6x

Step-by-step explanation:

just multiply

John assignments in value of his car overtime the equation for the line of best fit is approximate as Y represents 2.9 X +17.7 where y represents the value in thousands of dollars what values complete the Residual table

Answers

Answer:

For the given equation of the line of best fit, the values that complete the table are as follows

An equation for a line of best fit follows the same guidelines as a linear function where 'y' represents the total (value), 'x' represents time (years), -2.9 is the rate, and 17.7 is the starting value.  The table indicates that for any year, there is a given value, but what we are solving for is the predicted value.  The residual is the different between the given and predicted values.  So, for 'a', we need to solve for the 'y' in our equation by replacing 'x' with '1', multiplying by -2.9 and adding 17.7.  This gives us 14.8.  For 'b', we simply need to subtract the given and predicted values to get a residual of 0.1.  For 'c', we again solve for 'y' by replacing 'x' with '3' in our given equation to get 9. And, for 'd' we subtract the given value of 5 and the predicted value of 6.1 to get 1.1.

answer-

a = 14.8

b = 0.1

c = 9

d = -1.1

The answer you seek is

answer-

a = 14.8

b = 0.1

c = 9

d = -1.1

Can someone answer this question please please help me I really need it if it’s correct I will mark you brainliest .

Answers

Step 1) Divide the figure into separate shapes

Long rectangle: 27 x 5

Triangle: 3 x 4

Middle rectangle: 15 x 7

Small rectangle: 6 x 3

Step 2) Find the area of each shape

Long rectangle: A = 27 x 5 = 135

Triangle: A = 1/2 x 3 x 4 = 6

Middle rectangle: A = 15 x 7 = 105

Small rectangle: 6 x 3 = 18

Step 3) Add all of the areas together

A = 135 + 6 + 105 + 18 = 264 square feet

Hope this helps! :)

Jada is visiting new york city to see the empire state building she is 100 feet away when sge spots it.To see the top she has to look up at an angle of 86.2 dehrees how tall is the empire state building

Answers

Answer:

Height of the empire building = 1505.57 ft

Step-by-step explanation:

Jada is visiting new York city to see the empire state building . She is 100 ft away when the she spots it. To see the top she has to look at an angle of 86.2° . The illustration forms a right angle triangle.

The height of the empire can be gotten below.

the adjacent side of the triangle formed  = 100 ft

The side we are looking for is the opposite side which is the height of the empire state building. The angle formed is the angle of elevation from the ground to the top which is 86.2°

Using SOHCAHTOA principle the height can be gotten with the tangential degree.

tan 86.2° = opposite/adjacent

tan 86.2° = a/100

a = 100 tan 86.2

a = 100 × 15.0557227245

a = 1505.57227245

a ≈ 1505.57 ft

Height of the empire building = 1505.57 ft

help me cos I give brainliest so good look image below

Answers

Answer:

fx

2.542809140.5

sum of (fx)= 214

mean = £fx/ N

N=100

mean= 214÷100

mean = 2.14

3,024 divided by 336

Answers

Answer:

your answer would be 9. hope this helps!

Answer:

-Dividing 3,024 by 336 would give you 9:

[tex]3,024 \div 336 = 9[/tex]

An online clothing store is offering free shipping on orders over $75 you want to purchase t shirt for $9.85 and a pair of pants for$56.00 the shipping on this order will be 20% of the total should you purchase a second t shirt? Explain your answer

Answers

Answer:

Buy Two tshirts and a pair of pants....

Step-by-step explanation:

Total purchase -

$9.85 + $56.00 = $65.85

Shipping charges is 20%  -

65.85 * 0.2 = 13.17

Total (including shipping) = $79.02

If you purchace two t shirts and a pair of pants then you dont have to pay for the shipping therefore,

Total purchase will be -

$9.85 + $56.00 + $9.85 = $75.70

Puchasing 2 tshirts will be $3.32 cheaper....

Answer:

You should buy a second t-shirt.

Step-by-step explanation:

The total without shipping comes out to $65.85. Add the 20% shipping by multiplying .20 by the total, $65.85, and you get $65.85 plus $13.17, the total being $79.02. Now, if you added another shirt for $9.85, your total comes out to $75.70, which barely qualifies for free shipping. In other words, yes, you should purchase a second shirt because you would actually save money, almost $4.

Write the equation of the hyperbola centered at the origin with focus (74, 0) and asymptote y=-7/5x
The equation of the hyperbola is =x^2/a^2-y^2/b^2=1

Answers

The equation of the given hyperbola is; x²/25 - y²/49 = 1

What is the equation of the hyperbola?

We are given;

Focus = (74, 0)

Asymptote; y = -⁷/₅x

Centered at origin

We are given that the general form of equation of a hyperbola is;

x²/a² - y²/b² = 1

Now, we know that the equations of the asymptotes are;

y = ±(b/a)x

Thus, comparing the above with our asymptote of y = -7/5x gives us;

a = 5 and b = 7

Thus, the equation of the given hyperbola is;

x²/5² - y²/7² = 1

⇒ The equation of the given hyperbola is;

x²/25 - y²/49 = 1

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Answer:

The answer is 5 and 7

Step-by-step explanation:


6.4 m
12m
12.5 m
rectangular prism

Answers

Answer:

Volume: 9500 m^3

Step-by-step explanation:

6.4 * 12 = 76.8

76.8 * 12.5 = 9500

Classify the triangle by its sides and then by its angle

Answers

Answer:

equilateral right triangle

Step-by-step explanation:

7^2+7^2=c^2

49+49=c^2

c^2=98

c=10

Therefore, equilateral right triangle

To the nearest hundredth, what is the circumference of a circle with a radius
of 5 units?

Answers

Answer:

31.42

Step-by-step explanation:

I think that's right. Hopefully it is.

write an equation of the line that passes through the point (4,7) that is parallel to the line y = 3x+1​

Answers

Answer:  y = 3x - 5

Explanation:

The given line y = 3x+1 has a slope of 3 as it is in the form y = mx+b

Any line parallel to this given line will also have a slope of 3. Parallel lines have equal slopes but different y intercepts.

Using m = 3 and (x,y) = (4,7), find the value of b

y = mx+b

7 = 3*4+b

7 = 12+b

12+b = 7

b = 7-12

b = -5

We have y = mx+b update to y = 3x+(-5) or y = 3x-5

Plug in x = 4 and you'll have y = 3x-5 turn into y = 7.

Simplify cos[arccsc((2√3)/3)].

Answers

Answer:

1/2

Step-by-step explanation:

Given the expression cos[arccsc((2√3)/3)]

let y = arccsc((2√3)/3)

Taking cosec of both sides we have;

cosecy = cosec[arccsc((2√3)/3)]

cosecy = (2√3)/3

1/siny =  (2√3)/3

sin y = 3/2√3

Rationalizing 3/2√3

= 3/2√3 *√3/√3

= 3√3/2*3

= 3√3/6

= √3/2

siny = √3/2

y = arcsin(√3/2)

y = 60°

Since y = arccsc((2√3)/3) = 60°

cos[ arccsc((2√3)/3)] = cos60°

cos60° = 1/2

Answer:

It is 1/2

Step-by-step explanation:

Evaluate this expression.
5^2 +3 (8-2)
A. 28
B. 32
C. 43
D. 47
E. 168

Answers

Answer:

C. 43

Step-by-step explanation:

If k ∈ A ∩ B, which is the most specific location of k on the Venn diagram? I II III IV

Answers

Answer:

B) ||

Step-by-step explanation:

saw this on another page and noticed the right answer was missing here

The location of k in Venn diagram is in II region.

What is Venn Diagram?

A Venn diagram is a visual representation that makes use of circles to highlight the connections between different objects or limited groups of objects. Circles that overlap share certain characteristics, whereas circles that do not overlap do not. Venn diagrams are useful for showing how two concepts are related and different visually.

We have,

k ∈ A ∩ B means k is an element of both A and B.

The region I is or A only and the region I|I is only B.

and, the region II is for those whose share A and B.

Also, zone II is in between zone I and zone III which is both.

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what is the relationship between the base of an exponential function and its rate of growth?

Answers

Answer:

growth rate is the number of times the base repeats

Step-by-step explanation:

We have that the general form of the exponential function is of the type:

f (x) = a ^ x

where "a" is the base and "x" is the exponent.

Therefore, the relation they keep to this exponent would be the growth rate since it is the number of times that the base is repeated, which means that the higher "x" is, the more times "a" is repeated.

The base of the function "a" is the point where the exponential curve cuts the y-axis while the value of "b" determines the rate of a growth rate pf decline rate.

Exponential function

The standard exponential function is expressed as y = ab^x

where:

a is the y-interceptb is the ratex is the time taken.

The base of the function "a" is the point where the exponential curve cuts the y-axis while the value of "b" determines the rate of a growth rate pf decline rate.

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Please help!

You pick a card at random, put it back, and then pick another card at random.

What is the probability of picking a number less than 3 and then picking a number greater than 1?

Write your answer as a percentage.

__%

Answers

Your answer would be 37.5%

For the first card you picked, the probability of picking a number less than 3 is 2/4 = 1/2, because there are 2 cards that are less than 3 and a total of 4 cards.

When picking the second card, it is still out of 4 because you replaced the first one, so the probability of picking a card greater than 1 is 3/4 because there are 3 cards that are greater than 1 out of a total of 4.

Therefore the total probability would be 1/2 × 3/4 = 3/8. To find this as a percentage we just multiply by 100, and this gives us 37.5%.

I hope this helps!

Answer:

You have three card : 1, 2, 3 and 4.

You first pick one card randomly, the probability of picking a number less than 3 is:

P = 2/4  

You then pick a second card after putting the first card back, the probability of picking a number greater than 1 is:

P = 3/4

=> The probability of picking a number less than 3 and then picking a number greater than 1:

P = (2/4) x (3/4) = 3/8

Hope this helps!

:)

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