If the total surface area of a solid hemisphere is 462 cm2, find its volume.

Answers

Answer 1

Answer:

Step-by-step explanation:

here

total surface area(TSA)= 462 cm²

TSA=3πr²

462 = 3*22/7*r²

462*7=66r²

3,234=66r²

3,234/66=r²

49=r²

√(49=r

r=7

therefore the radia of the hemisphere is 7

now,

volume of hemisphere(V) = (2/3)πr²

V=(2/3)*(22/7)*7²

V=44*7

V=308

Answer 2

Answer:

radius is 7cmStep-by-step explanation:

v=2/3piercube

=2/3×22/7×7×7×7

=2156/3

=718.67cmcube


Related Questions

Which word describes the relationship of the points (3, 1)
and (3, 6)?
O A) collinear
OB) parallel
OC) perpendicular
OD) coincident​

Answers

Answer:

where is the diagram dude

i think u wolud be having a digram of it

What is the slope of the line that passes through the points (2, 6) and (-1, -9).

Answers

5 is the slope ummmmm so yea

Write the ratio 12 to 18 as a fraction in simplest form.

Answers

x to y can be expressed as a fraction this way: x/y.

Let x = 12

Let y = 18

12/18

We can now reduce to lowest terms.

Dividing 12 and 18 by 6, we get 2/3 as the final answer.

The simplified fraction is 2/3. This means that the ratio of 12 to 18 can be expressed as 2/3. It indicates that for every 2 units of the first quantity (12), there are 3 units of the second quantity (18). Simplifying the fraction ensures that there are no common factors other than 1 between the numerator and the denominator, making it the simplest representation of the ratio.

To express the ratio 12 to 18 as a fraction in simplest form, we can divide both numbers by their greatest common divisor (GCD). The GCD of 12 and 18 is 6. By dividing both numbers by 6, we simplify the fraction to its simplest form:

12 ÷ 6 = 2

18 ÷ 6 = 3

Thus, the simplified fraction is 2/3. This means that the ratio of 12 to 18 can be expressed as 2/3. It indicates that for every 2 units of the first quantity (12), there are 3 units of the second quantity (18). Simplifying the fraction ensures that there are no common factors other than 1 between the numerator and the denominator, making it the simplest representation of the ratio.

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what is the slope of the line through [-1,2] and [2,-3]

Answers

Answer:

-3/5

Step-by-step explanation:

to figure that out you have to do y^2 - y^1/ x^2 - x^1

2-(-1)/ -3 - 2

= 3/-5

=-3/5

please help me asap brainliest if correct

Answers

Answer:

z ≥ − 8

Step-by-step explanation:

Yea I need help

I’ll give 20 points

Answers

Answer

Its the 3rd option

Step-by-step explanation:

Mr. Stack and Coach Pugh are racing down the highway. Coach Pugh is going five miles more an hour than twice Mr. Stack's speed. If Coach Pugh is going one hundred and five miles and hour, how fast is Mr. Stack going?

Answers

Answer:

50

Step-by-step explanation:

2(Mr stack's speed) = Coach Pugh's speed - 5mph

Mr stack's speed = (105mph - 5mph)/2

Mr stack's speed = 100mph/2

Mr stack's speed = 50mph


Please help meeeeeeeee

Answers

Answer:

m <4=   57 degrees

m<5=   123 degrees

m<6=   35 degrees

I hope this helps and good luck!

Answer:

m∠4 = 57°

m∠5 = 123°

m∠6 = 35°

Step-by-step explanation:

m∠4 ≅ ∠57°

Therefore m∠4 = 57°

Following this rule of thumb

m∠6 ≅ 35°

m∠6 = 35°

m∠5 = 180 - 57

m∠5 = 123

Its hard to explain given the fact that I cant quite point to each angle

Hope this helps

Is BAK ~ JOL? Explain your reasoning.

Answers

Answer:

Since the ratios are not equal the triangles are not similar

Step-by-step explanation:

Triangle Similarity

For both triangles to be similar, their corresponding side lengths should be proportional by the same scale factor.

Triangle BAK has side lengths: BA=60, AK=38, and KB=36

Triangle JOL has side lengths: JO=50, OL=28, and LJ=26.

Calculating the ratios of the corresponding side lengths:

BA/JO=60/50=1.2

AK/OL=38/28=1.36

KB/LJ=36/26=1.38

Since the ratios are not equal the triangles are not similar

100 POINTS GEOMETRY QUESTION PLEASE ANSWER !!!!!!

Answers

Answer:

Step-by-step explanation:

ABC have sides: 5, 7 and 10

5^2 + 7^2 = 25+47 = 72 < 10^2

so triangle ABC is obtuse

JKL has sides: 12, 35 and 37

12^2 + 35^2 = 144 + 1225 = 1369 = 37^2

so triangle JKL is right-angled

PQR has sides 12, 10 and 16

12^2 + 10^2 = 144 + 100 = 244 > 16^2

so triangle PQR is acute

Answer:

Step-by-step explanation:

missing the Q: it asks 2 classify the triangles.

so the ans:

ABC - obtuse

JKL - right-angled

PQR - acute

On Monday, 6 out of every 10 people who entered a store
purchased something. If 1,000 people entered the store on
Monday, how many people purchased something.
PLEASE HELP!! and if you know the awnser can you tell me how you got it pleasee thank youuu!

Answers

Answer:

600 people

Step-by-step explanation:

It’s under by 4 so it would be under by 40,400,4000 ect

Answer: 600 people

Step-by-step explanation: If 6 people out of 10 people bought something then just multiply both numbers by 100, as there are 2 more 0's in 1000 than 10, hope this helps :)

Nila bought a "buy-one-take-one" bag. She paid Php 1, 256. How much did each bag cost

Answers

Answer: Php 628

Step-by-step explanation:

Nina got two bags but paid for the price of one according to the sale.

The cost of each bag will therefore be the total price divided by 2 which is;

= 1,256/2

= Php 628


What is the quotient of (4x2 – 15x + 9) = (x – 3)?

4x - 3
4x + 3
3x - 4
3x + 4

Answers

Answer:

Step-by-step explanation:

(4x^2-15x+9) ÷ (x-3)

4x-3

HELP MEEEE
Which of the three following graphs display the same data?
County Voter Turnout
(thousands)
County Voter Turnout
(thousands)
110
107
110
103
99
100
97
98
105
1.
II.
90
100
80
70
95
1992 1996 2000 2004 2008
1992 1996 2000 2004 2008
County Voter Turnout
(thousands)
Cuvanog
County

Answers

Answer:

Step-by-step explanation:

I cant see the third but I know the first and second are the same

The bar graph and the line graph display the same data.

What is a bar graph?

A bar graph is a type of chart that displays data as a series of bars or columns, with each bar representing a category or group and the height or length of the bar corresponding to the value or frequency of the data.

We have,

We see that,

Bar graph:

Year    Voters turnout

1992       99

1996       107

2000      103

2004       97

2008       98

Line graph:

Year    Voters turnout

1992       99

1996       107

2000      103

2004       97

2008       98

Now,

This means that the bar graph and the line graph are the same.

Thus,

The bar graph and the line graph display the same data.

Learn more about bar graphs here:

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what is the answer to y=-5x+3

Answers

Answer:

x = 3/5

Step-by-step explanation:

y= -5x + 3

0 = -5x + 3

5x = 3

x = 3/5

Answer:

your mom

Step-by-step explanation:

because y for dishwasher

Isabella is buying clothes. There is a 5% sales tax added to all purchases. Before tax, the cost of the clothes is $60. How much tax will be added to the clothes?

Answers

Answer:12

Step-by-step explanation:

A field has a length of 6 2/3 yards and a width of 4 3/4 yards. What is the area of the field.

Answers

Answer:

Ste-by-step explanation:

That doesn’t answer it stupid

Can someone help me ASAP

Answers

Answer:

city y is the coldest

Step-by-step explanation:

city x = -35 c

city y = -49 f

city z = -40 f

how you do it,

to get celsius

Fahrenheit degrees minus(-) 32, multiplied by 5, and divided by 9  

to get Fahrenheit

Divide by 5, multiply by nine, add 32

Answer:

-31 F = -35 C

-45 C = -49 F

-40 C = -40 F

City Y is coldest

Fahrenheit to Celsius conversion (°F to °C)

Manny baked 48 cookies for a bake sale. 75% of the cookies were chocolate chip. How many cookies were NOT chocolate chip

Answers

48 (.75) = 36
48 -36 = 12 cookies or 25%

A hemispherical bowl is made of brass has an inner diameter 35 cm. What is the inner surface area? URGENT

Answers

Answer:

The inner surface area is: 1923.25 cm²

Step-by-step explanation:

A hemispherical bowl is made of brass has an inner diameter of 35 cm.

i.e. d = 35 cm

As the radius is basically half of the diameter.

r = d/2

  = 35/2

   = 17.5 cm

The inner surface area of a hemispherical bowl = 2πr²

= 2(3.14)(17.5)²

=1923.25 cm²

Therefore, the inner surface area is: 1923.25 cm²

Which two points should the line of best fit go through to best represent the data in the scatter plot?


A. (1,3) and (2,7)
B. (1,3) and (6,13)
C. (3,8) and (5,12)
D. (5,12) and (6,13)

Answers

Answer: the answer is c I think

Step-by-step explanation:

15 people working 5 hours per day can make 30 units of a product in 10 days. Assuming all other factors remain constant and people of the same efficiency are used to make the same products, in how many days can 10 people make 10 units of the product if each of them works 10 hours per day?

Answers

Answer:

I don't really understand it very well

It will take 10 people working 10 hours per day about 2.5 days to make 10 units of the product.

From the statement of the question; 15 people working 5 hours per day can make 30 units of a product in 10 days. Hence, the number of units that can be made in a day is;

Number of units per day = (15*5*10)/30

= 25 units/day

Now; if 10 people make 10 units, working 10 hours per day, it will take them x number of days.

x =  (25*10)/10*10

x = 2.5 days

Learn more: https://brainly.com/question/22873736

PLS HELPS ME!!!!!!!!!!!!

Answers

Answer:

Step-by-step explanation:

1).

(a). Yes, the graph is linear.

(b). Rate of change is a slope m, m = (60 - 80) / (10 - 0) = - 2

2). Graph is not proportional, because y-intercept is (0, 80) and not (0, 0)

Round 8250 to the nearest hundred.

Answers

Answer:

8300

Step-by-step explanation:

i believe it is 8300 but if im wrong let me know

Solve the system of equations by substitution.
x + y = 40
y = 9x
The solution of the system is?

Answers

x= 4 and y=36 is the answer

Write an equation: Gianna finds $20 on the floor, and she starts saves her allowance
of $5 every week.

Answers

Answer:

5x +20

Step-by-step explanation:

In triangle ABC, AB=5cm, AC = 10cm, and BC = 12 cm
Determine the size of the largest angle.​

Answers

Answer:

The largest angle is <B.

Because, AC is the longest and largest side of ∆ABC. Therefore, the angle opposite the largest side is also the largest.

This is a property in geometry.

Step-by-step explanation:

Please give me Brainlest!

distribute -4(5x ²-2x).

Answers

Answer:

-4(5x^2-2x)

-4 x 5x^2-4(-2x)

-20x^2+8x

Answer:

-20x^2+8x

Step-by-step explanation:

That is -20x squared by the way

You’re welcome :)

a balloon dress 140 miles towards the lessons 45 seconds then it suddenly changes and the win flies 90 miles towards the east and that's 25 seconds What's the total distance it traveled​

Answers

I think the total is 190 miles they have traveled but don’t trust me I think it is

Please help me out :)

Answers

1. D
2.B
3.A
4. D i think i can’t really see that question
5.C
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