Answer:
The total weight of the water in a full tank, to the nearest pound is 3527 pounds per cubic foot
Step-by-step explanation:
Given:
Diameter of the hemispherical tank = 6 feet
Weight of water per cubic foot = 62. 4 pounds
To Find:
The total weight of the water in a full tank, to the nearest pound?
Solution:
We know that the volume of a sphere is:
[tex]V =\frac{4}{3}\pi r^3[/tex]
where
r = is the radius
In the question we are given with diameter,
So
[tex]radius = \frac{diameter}{2}[/tex]
radius = [tex]\frac{6}{2}[/tex]
Radius = 3
We need the volume of the hemisphere
So the volume of the hemisphere will be half of the volume of teh sphere
[tex]\frac{V}{2} = \frac{2}{3}\pi r^3[/tex]
Thus the volume of the hemisphere is
[tex]V =\frac{2}{3} \pi r^3[/tex]
Now substituting the values
[tex]V = \frac{2}{3} \pi(3)^3[/tex]
[tex]V = \frac{2}{3}\pi(27)[/tex]
[tex]V = \frac{54 \pi}{3}[/tex]
[tex]V = \frac{169.56}{2}[/tex]
V= 56.52 cubic foot
Now, the total weight of water of:
W = 56.52 x 62.4
W= 3526.848 pounds per cubic foot
To the nearest pounds
W= 3527 pounds per cubic foot
Answer:
3529
Step-by-step explanation:
If you are here from delta math this is the Answer
I need help please and thank you
We have two lines intersected by a transversal. There is a relationship between <6 and <2. They are corresponding angles and are congruent. So if the m<6 = 75° then the m<2 = 75°.
answer: m<2 = 75°
To illustrate the importance of outliers, suppose you do not count the owner in the last problem. The data for the other
workers is:
$ US
5 people earn $25,000, 3 earn $27,000, and 1 earns $34,000
What is the mean salary and standard deviation (to the nearest dollar) of the workers?
Answer:
The mean is 26666.67 and the standard deviation is 372919430.33.Step-by-step explanation:
The mean means the average of the numbers.
The mean will be [tex]\frac{25000\times5 + 27000\times3 + 34000}{5 + 3 + 1} = \frac{240000}{9} = 26666.666666666[/tex].
The differences of the earnings from the mean are 1666.67, 26997.33, 33997.33.
Squaring the numbers we get, 2777788.89, 728855827.13, 1155818447.12.
We need to find the mean of the above numbers to get the standard deviation.
Thus, the standard deviation is [tex]\frac{2777788.89\times5 + 728855827.13\times3 + 1155818447.12}{9} = 372919430.33[/tex].
Andrew and Elena knew that after 28 days they would have 2^28 coins, but they wanted to find out how many coins that actually is Andrew wrote: 2^28=2×28=56. Elena said, " No, exponents mean repeated multiplication. It should be 28×28, which works out to be 784." Do you agree with either of them? Explain your reasoning.
Both Andrew and Elena are wrong. The actual value of 2^28 equals 268,435,456.
Step-by-step explanation:
Elena was right when she said exponents mean repeated multiplication but she accidentally calculated the value of 28^2 instead of 2^28. 2^28 means that the number 2 should be multiplied with itself for 28 times.
2^2 means 2 multiplied by 2 equals 4. 2^3 means 2 multiplied by 2 and then multiplied by 2 again which equals 8. Similarly, if you multiply 2 with itself 28 times you will get a value of 268,435,456 (two hundred and sixty-eight million, four hundred and thirty-five thousand, four hundred and fifty-six). So Andrew and Elena will have 268,435,456 coins after 28 days.
144 is what percent of 260
To indicate that one's purpose for writing is to inform, an author would include clues such as
Answer:
Facts
Step-by-step explanation:
Which of the following is equivalent to the expression i^22?
Answer:
Step-by-step explanation:
[tex]i^{22}=i^{2*11}=(i^{2})^{11}=(-1)^{11}=-1[/tex]
Answer:
i^22 = -1.
Step-by-step explanation:
i^22 = (i^4)^5 * i^2
Now i^2 = -1 ( by definition)
and i^4 = i^2 * i^2 = -1 * -1 = 1
So i^22 = 1^5 * -1
= 1 * -1
= -1.
Solve the inequality -24 < x - 3 - 8x.
O A.x2-3 B.X2-9 C.x23 D.xs3
Answer:
Step-by-step explanation:
-24 < x - 3 - 8x
-24 < -7x - 3
-24 + 3 < - 7x
-21 < - 7x ......divide by -7 and change ur sign
-21/-7 > x
3 > x <==== ur answer
** in an inequality, if u multiply or divide by a negative, u have to change the sign
:
Step-by-step explanation:
-24 < x - 3 - 8x
-24 + 3 < x - 8x
-21 < -7x
7x > 21
x > 21/7
x > 3
Ibuki factored 12 xZ as (4x) (3x4)
Melodie factored 12x7 as (2x (6x)
Who factored correctly?
Neither Ibuki nor Melodie factored 12x² correctly based on the expressions given. However, if Melodie's (2x)(6x) was meant for 12x², then her factorization would be correct.
Explanation:The students are attempting to factor the expression 12x². Factoring is the process of finding two or more expressions that multiply together to get the original expression. Ibuki's factorization of 12x² as (4x)(3x⁴) contains an error since 3x⁴ would imply raising x to the fourth power, which is not present in the original expression. Melodie's factorization of 12x² as (2x)(6x) is also incorrect since when you multiply 2x and 6x, you get 12x², not 12x⁷ as her expression suggests. The correct factorization of 12x² is (2x)(6x) since 2x multiplied by 6x equals 12x².
In summary, neither student has factored the expression correctly. However, if we take Melodie's answer as a typo and she meant (2x)(6x) for 12x², then her factored form would be correct.
At a restaurant, bill and his four friends decided to divide the bill evenly. If each person paid $12, what was the total bill?
Answer:
total=$60
Step-by-step explanation:
Including bill there's a total of 5 people
take what each person paid, $12, and multiply by the number of people
$12(5)=$60
The total bill at the restaurant was $60, calculated by multiplying the amount each person paid ($12) by the number of people (5).
Explanation:In this Mathematics problem, Bill and his four friends, for a total of five people, decided to equally divide the restaurant bill. Each person paid $12. In order to find the total bill, we must multiply the amount each person paid by the number of people. This means, we multiply $12 by 5, which gives us a total bill of $60.
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What kind of number is the square root of 16
Answer:
4 is the square root of 16 :)
Step-by-step explanation:
Answer:
I think the answer you're looking for is four?
Use the Pythagorean theorem to find the unknown side of the right triangle.
15
36
A right triangle has a vertical side of length 15, a horizontal side of length 36, and an unlabeled hypotenuse.
Hypotenuse lengthequals=3 StartRoot 169 EndRoot3169
(Simplify your answer. Type exact answers, using radicals as needed.)
The length of hypotenuse is 39.
Step-by-step explanation:
Given,
Vertical side = a = 15
Horizontal side = b = 36
Hypotenuse = c
Using pythagorean theorem
[tex]a^2+b^2=c^2\\(15)^2+(36)^2=c^2\\225+1296=c^2\\1521=c^2\\c^2=1521[/tex]
Taking square root on both sides
[tex]\sqrt{c^2}=\sqrt{1521}\\c=39[/tex]
The length of hypotenuse is 39.
Keywords: square root, addition
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A store advertises a 35% discount on a $951 computer system.
Answer:
The computer system would be $332.85 less than the normal price, or $618.15 total.
What is the next number in the
pattern -3, 6, -9, 12,
Answer:
-15
Step-by-step explanation:
The pattern is adding 3 and adding a negative sign
explain why triangles LMN and NOP are similar
work out the length of MO
HURRY ANSWER 16 POINTS
What percent of the volleyball players on Monday afternoon were counselors?
Answer: 10%
Step-by-step explanation: If there is a total of 20 volleyball players, but only 2 were counselors so, you have to divide 2 into 20 which would be .10 .
explain how to find the area of the triangle when x = 3 inches. then find the area
To find the area of a triangle, multiply the base by the height, and then divide by 2. The division by 2 comes from the fact that a parallelogram can be divided into 2 triangles.
Step-by-step explanation: To find the area of a triangle, multiply the base by the height, and then divide by 2. The division by 2 comes from the fact that a parallelogram can be divided into 2 triangles.
The perimeter of the square can be represented by the expression 36x+44 robin wants to write an equivalent expression for the perimeter that shows the side length of the square
Answer:
4 (9 x + 11) is an equivalent expression for the perimeter that shows the side length of the square is (9 x + 11).
Step-by-step explanation:
Here, given The perimeter of the square = (36 x+44)
Now,as we know :
PERIMETER OF SQUARE = 4 x ( SIDES)
Simplifying the perimeter expression.
Take 4 common out of the expression (36 x+44), we get:
(36 x+44) = 4 (9 x + 11)
⇒ Perimeter of the square = 4 x (9 x + 11)
⇒4 x ( SIDES) = 4 x (9 x + 11)
⇒ Each Side = (9 x + 11)
Hence, 4 x (9 x + 11) is an equivalent expression for the perimeter that shows the side length of the square is (9 x + 11).
10x - 9y + 5x - 4y - 5x + 4x
Answer:
14x-13y
Step-by-step explanation:
x2-3xy-5xy-7y2+4x2+8y2
For this case we must simplify the following expression:
[tex]x ^ 2-3xy-5xy-7y ^ 2 + 4x ^ 2 + 8y ^ 2[/tex]
We must add similar terms taking into account that:
Equal signs are added and the same sign is placed.Different signs are subtracted and the major sign is placed.[tex](x ^ 2 + 4x ^ 2) + (- 3xy-5xy) + (- 7y ^ 2 + 8y ^ 2) =\\5x ^ 2-8xy + y ^ 2[/tex]
Thus, the simplified expression is:
[tex]5x ^ 2-8xy + y ^ 2[/tex]
Answer:
[tex]5x ^ 2-8xy + y ^ 2[/tex]
I need to know the answer
Write a system of two equations.
A system of linear equation consists of two or more linear equations with the two or more same variables. Such equations are called system of equations (or) simultaneous equations (or) a pair of equations.
Example:
x + y = 5 is one linear equation.
2x – y = 4 is another linear equation.
But x + y = 5, 2x – y = 4 together they form system of linear equation.
The solution to a system of linear equations in two variables is any ordered pair that satisfies each equation independently.
Answer:
A liner equation is an equation between two variables that gives a straight line when plotted on a graph.A system of linear equation consists of two or more linear equations with the two or more same variables.
Step-by-step explanation:
x + y = 5 and 2x – y = 4 together they form a linear equation.
Also please give me Brainliests.
2 and 1/3 plus 1 and 5/9
Answer:
35/9
Step-by-step explanation:
2 1/3=7/3
1 5/9=14/9
------------------
7/3+14/9=21/9+14/9=35/9
Answer: 2 1/3 + 1 5/9 = 3 8/9
Step-by-step explanation: You make the fractions the same so 3/9 is equal to 1/3 so you multiply both numbers in fraction #1 (1/3) by 3 & just add, not the denominators though
Add and simplify 7/8+1/6
Answer:
Step-by-step explanation:
Laura answered 27 questions correct on a test on her test and scored 90%. How many questions where on the test?
The number of questions in the test is 30
Step-by-step explanation:
Let's call the total number of questions in the test N.
We know that Laura answered 27 questions, and these 27 questions represent the 90% of the test.
Therefore, we can say that 27 is the 90% of N.
Re-writing the percentage as a fraction,
[tex]90\% = 0.90[/tex]
This means that:
[tex]0.90 N = 27[/tex]
And now we can solve for N to find the number of questions in the test:
[tex]N=\frac{27}{0.90}=30[/tex]
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AE = EC and BF = FC. EF = 8 and DF = 10. AB = [?]
Answer:
Therefore AB is 16 units.
Step-by-step explanation:
Given:
AE = EC
BF = FC
EF = 8 and DF = 10
To Find:
AB = ?
Solution:
Mid Point Theorem:
The Midpoint Theorem states that "the segment joining two sides of a triangle at the midpoints of those sides is parallel to the third side and is half the length of the third side".
AE = EC .....Given
Therefore E is the Mid Point of AC.
BF = FC .....Given
Therefore F is the Mid Point of BC.
Therefore,
EF || AB ........................Mid Point Theorem.
[tex]EF=\dfrac{1}{2}AB[/tex] ..............Mid Point Theorem.
Substituting the values we get
[tex]8=\dfrac{1}{2}AB\\\\AB=8\times 2=16\ units[/tex]
Therefore AB is 16 units.
Answer:
16
Step-by-step explanation:
please show the steps for the given picture
Answer:
8000
Step-by-step explanation:
So n equals 0.00 and then in the parentheses 1.1 you would multiply those two numbers X 1300. and then you would ×that answer by 8000 and you get 8000 .
whats the radical form of 192????
Answer:
The radical form of [tex]192[/tex] is [tex]8\sqrt{3}[/tex].
Step-by-step explanation:
Given the number is [tex]192[/tex], we need to find its radical form.
We will do the factorization of [tex]192[/tex].
[tex]192=2\times2\times2\times2\times2\times2\times3=2^6\times3\\192=(2^3)^2\times 3\\192=8^2\times3\\[/tex]
Taking square root both sides we get,
[tex]\sqrt{192}=\sqrt{8^2\times 3}\\\sqrt{ab}=\sqrt{a}\times \sqrt{b}\\\sqrt{192}=\sqrt{8^2}\times \sqrt{3}\\\sqrt{192}=8\times\sqrt{3}\\\sqrt{192}=8\sqrt{3}[/tex]
So, the radical form of [tex]192[/tex] is [tex]8\sqrt{3}[/tex].
the drama club at school sells $15.00
coupon books. Their profit is 35% of the
total sales. What is their profit on each
book?
The profit on each book is $ 5.25
Solution:
Given that, the drama club at school sells $ 15.00 coupon books
Their profit is 35% of the total sales
Therefore,
Cost of a coupon book = $ 15
Profit = 35% of the total sales
We have to find the profit on each book
If a book is sold for $ 15 and then profit will be 35 % of 15
Let us find 35 % of 15
[tex]Profit\ on\ each\ book = 35 \% \times 15\\\\Profit\ on\ each\ book = \frac{35}{100} \times 15\\\\Profit\ on\ each\ book = 0.35 \times 15\\\\Profit\ on\ each\ book = 5.25[/tex]
Thus profit on each book is $ 5.25
if you add five to twice a number the results is fifteen. What is the number?
The number is 5.
Step-by-step explanation:
Let,
x represent the unknown number.
According to given statement;
add five to twice a number the results is fifteen
2x + 5 = 15
Subtracting 5 from both sides
[tex]2x+5-5=15-5\\2x=10[/tex]
Dividing both sides by 2
[tex]\frac{2x}{2}=\frac{10}{2}\\x=5[/tex]
The number is 5.
Keywords: variable, addition
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what is 17/27 as a decimal
Answer:
0.63
Step-by-step explanation:
Do the long division.