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LekaFEV [45]
2 years ago
7

Formula of volume of hemisphere and sphere​

Mathematics
2 answers:
iris [78.8K]2 years ago
5 0

Answer:

Sphere volume = 4/3 πr³

Hemisphere volume = 2/3 πr³

Step-by-step explanation:

Above are the formulas for volume

Where r is radius  and π has value of 3.14

Len [333]2 years ago
4 0

Answer:

The volume of a hemisphere of some radius can be easily found out by calculating just half of the volume of a sphere of the same radius. Volume of hemisphere = 2πr3/3, where r is the radius of the hemisphere

Step-by-step explanation:

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Linear equation topic. (Lisa is 5 years younger than his elder brother,Daniel.The product of their ages is 2/3 of their grandmot
alisha [4.7K]
Let Daniel's age be 'x' years , hence, Lisa's age is (x - 5) years. Let Grandma's age be 'y' = 54 years.
Hence,
x(x - 5) = 2/3 × y
x² - 5x = 2 × 54 years / 3
x² - 5x = 36 years
x² - 5x - 36 = 0
∆ = (-5)² - 4(1)(-36) = 25 + 144 = 169
√∆ = √169 = 13
x\:  =  \:  \frac{ - b \:   \frac{ + }{ }   \:  \sqrt{ {b}^{2}  \:  -  \: 4ac} }{2a}
x1 = (5+13)/2, x2 = (5-13)/2
x1 = 9, x2 = -4
Since, age can't be negative,
Daniel's age = x = 9 years.
7 0
3 years ago
Atown uses positive numbers to track increases in population and negative numbers to track decreases in population.
amid [387]

Answer:

Step-by-step explanation:

-60

Step-by-step explanation:

Increase in population is given by positive sign

Change in population in 5 years = -300

Decrease in population is represented by negative sign

Change in population in 1 year = -300\5

                                                = -60

Town's population faces a decrease of 60 residents each year.

4 0
3 years ago
Could someone help answer number 1 please
Alekssandra [29.7K]
(4,0) hope this helps!!
7 0
2 years ago
Question 4 (1 point)
mrs_skeptik [129]

Answer:

(C)y=0

Step-by-step explanation:

An exponential function of the form f(x) = a (b^x) + c always has a horizontal asymptote at y = c.

Given our function y=4^x

Comparing with the form,  f(x) = a (b^x) + c, we observe that c=0.

Therefore, the exponential function has an <u>asymptote at y=0.</u>

The correct option is C.

7 0
3 years ago
In the triangle below, m ∠ 1 = 39 ° and m ∠ 4 = 85 ° . What is m ∠ 2 ?
skad [1K]

Answer:

one sec

Step-by-step explanation:

5 0
3 years ago
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