Can someone help me plz ​
can someone help me plz ​ - 1

Answers

Answer 1
Answer:

Answer:

9442 lb

Step-by-step explanation:

First find the volume of the tank.  This being a sphere, the volume is V =(4/3)π·r³.  Here the diameter is 17 ft, so the radius, r, is half that:  8.5 ft.

Then the volume of the sphere is V = (4/3)π·(8.5 ft)³, and half that (the volume of the hemisphere) is (2/3)π·72.25 ft³.

Water weighs 62.4 lb/ft³.  To find the weight of the water in the full tank, multiply the tank volume by this weight density 62.4 lb/ft³:

×

(2/3)π·72.25 ft³ · 62.4 lb/ft³ ≈ 9442 lb


Related Questions

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Y=5cos(20x) find amplitude, period & graph
when the whole is the same,how many eights does it take to make 1 fourth? draw a model to support your answer
Vito is reading a historical fiction novel about Nelson Mandela for his literature class. He needs to identify a theme from the novel. Which statement is an example of a theme?Politicians can become very famous.Mandela served as president of South Africa for five years.Challenges can be overcome through hard work and persistence.Mandela encouraged peace in his country while he was president.
How do i solve 3x² - 8x + 2 = 0 using quadratic formula?

Find the balance in the account.$2,400 principal earning 2%, compounded annually, after 7 years

$307,200.00
$2,736.00
$2,756.85
$17,136.00

Answers

This can be solved using the formula for interest, which is the following:

Let:
F = Future value
P = Principal value
i = interest rate
n = interest period (n = 7)

F = P(1 + i)^n

Using the given values:

F = 2400(1 + 0.02)^7
F = 2756.8456

Therefore, the balance in the account would be $2756.85

Can someone help me with these problems? I know the formulas but don't know how to apply it? I'm not that good with word problems. I wrote the answers in a separate sheet just want to compare with someone please!( not to be mean but can S27111855 stop replying your not a big help!)

Answers

ok so you know that
V=LWH
basically
volume=height times base area


so
2. V=3 times 8 times 12=288 cm^3

3. triangular prism is 1/2 of the volume of a similar rectangular prism with same measure so
V=1/2 times 4 times 10 times 15=300 cm^3
 
4. trapezoid base area=area of a trapezoid=(base1+base2)/2 times height so
baseaea=(4+10)/2 times 6=7 times 6=42, then basearea times height=42 times 10=420cm^3

5. cylinder area=base area times height
base=circle=pir^2
r=1/2diameter
6/2=3
base=pi3^2=9pi
area=9pi times 12=108pi cm^3

6. 24pi=4 times pir^2
divide by 4
6pi=pir^2
divd e pi
6=r^2
√6 cm=r

7. square pyramid volume=1/3 volume of similar rectangular prism so
square means base=4 times 4=16
height=9
rectangular volume=16 times 9
pyramid voluume=1/3 times 16 times 9=48 cm^3

8. solve for base side
use pythagorean theorem
slant height=hyposonuse=13
base edge=2 times of 1 of the legs so 10/2=5
so
5^2+x^2=13^2
25+x^2=169
x^2=144
x=12
height of pyramid=12
volume=1/3 times 10 times 10 times 12 times=400 cm^3




2. C
3. B
4. A
5. C
6. B
7. C
8. A

Which of the following expressions is larger? 3.67 x 10^2 or 1.9 x 10^2

Answers

Answer:

3.67 x 10^2 is larger

Step-by-step explanation:

Answer:

3.67 x 10^2 is larger than 1.9 x 10^2

Step-by-step explanation: Multiply

What is the LCD of 1/2 and 3/5

Answers

Answer:

10

Step-by-step explanation:

How you find LCD (lowest common denominator) is that you have to look at the denominator (the bottom number) and try to find the lowest multiple between both of the numbers that is on the bottom (in this case it is 2 and 5). Sometimes you have to multiply both denominators together to get a LCD.

Example of multiplying two denominators together to get an LCD:

1/3 and 1/13 LCD is 39 because you multiply 3 and 13.

1/5 and 1/4 LCD is 20 because you multiply 5 and 4.

Mauritius island is 2 km due south of its closest point along a straight coastline. Gibril is staying at a private room on the shore that is 6 km east of that point. Gibril is planning to go from the room to the island. Suppose Gibril runs at a rate of 8 kmph and swims at a rate of 3 kmph. How far should Gibril run before swimming to minimize the time it takes to reach the island?

Answers

Answer:

5.19 Km

Step-by-step explanation:

According To the Question,

Suppose he Runs Xkm before swimming to minimize the time it takes to reach the island .

So, he should swim \sqrt{2^(2)+(6-X)^(2)  } Km .

Now The Total Time is t = (X)/(8) + \frac{\sqrt{2^(2)+(6-X)^(2)  } }{3} .

t = (X)/(8) + \frac{\sqrt{X^(2)-12X+40  } }{3}

(dt)/(dX)=1/8 + 1/3 * 1/2 * \frac{2X-12}{\sqrt{X^(2)-12X+40 } }

(dt)/(dX)=1/8 + (1)/(3)  * \frac{X-6}{\sqrt{X^(2)-12X+40 } }

Now Put (dt)/(dX) = 0 , we get

1/8 + (1)/(3)  * \frac{X-6}{\sqrt{X^(2)-12X+40 } } = 0

(1)/(3)  * \frac{X-6}{\sqrt{X^(2)-12X+40 } } = - (1)/(8)

8(X-6)= -3 × {\sqrt{X^(2)-12X+40 }

square on both side,We get

64(X²-12X+36) = 9X² - 108X +360

55X² -660X + 1944 = 0

Apply Shri Dharacharya formula, To Find The Value of 'X'

X =[ - (-660) ±\sqrt{(-660)^(2)-4*55*1944 }  ] ÷ 2×55

X = (660±√7920) / 110

X= (660 - 89 ) / 110  ⇒ (Neglect '+' because it give 749/110 = 6.8 km Which is not possible )

X=571/110 ⇔ 5.19km he Should Run before swimming to minimize the time .

(For Diagram,Please Find In Attachment)

What ratio is equivilant to 4:13 which makes 85?

Answers

Let us assume the common ratio to be = x
then
4x + 13x = 85
17x = 85
x = 85/17
   = 5
Then
The ratio will be = 4 * 5:13 * 5
                          = 20:65
So the ration in which the number 85 can be separated is 20:65. i hope the procedure is clear enough for you to understand. You can always use this method for solving similar problems without taking any help from outside. Only be careful while calculating.