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Semenov [28]
4 years ago
10

What formular for surface area of hemisphere

Mathematics
1 answer:
Romashka [77]4 years ago
3 0

Well the formula for the surface area of a sphere is 4 x pi x r^2. Which means that the surface area for a hemisphere is half of that. The surface area of a hemisphere is 2 x pi x r^2

Hope this helps!

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Reedy's Rocking Chairs employs 10 people. The CEO makes $500,000 each year, and the 9 other employees make $50,000 each. What me
Tresset [83]
What measure would give you the best idea of what a typical employee makes?
500,000/10 = 50,000         
                    +50,000
19x = 100,000
19x/19 = 100,000/19
x = $5,263.15
       
4 0
3 years ago
How do i solve this ? :')
Vesna [10]
I think you are supposed to make the fraction equivalent so you know that 27/9 is 3, so you would do the same thing whatever number is supossed to be under 17 needs to equal to 2 when divided by 9. So you should probably know that 3 * 9 is 18 so x needs to be a number that when subtracted by 5 gives you 18. So x=23. Hope this is right and it helps!
4 0
4 years ago
Model Exponential Growth Question :A sample of bacteria is growing at a continuously compounding rate. The sample triples in 10
Iteru [2.4K]

Answer:

The number of bacteria B after d days is given by

B = B_0 (3)^{\frac{1}{10} d}

where B_0 is the initial number of bacteria.  

Step-by-step explanation:

The number of bacteria B in the sample triples every 10 days, this means after the first 10th day, the number of bacteria is

B = B_0 *3,

where B_0 is the initial number of bacteria in the sample.

After the 2nd 10th days, the number of bacteria is

B = (B_0 *3)*3

after the 3rd day,

B =( B_0 *3*3)*3

and so on.

Thus, the formula we get for the number of bacteria after the <em>n</em>th 10-days is

B = B_0 (3)^n

where n is is the <em>n</em>th 10-days.

Since, n is 10 days, we have

d =10n

or

n =\dfrac{1}{10}

Substituting that into B = B_0 (3)^n, we get:

\boxed{ B = B_0 (3)^{\frac{1}{10} d}}

8 0
3 years ago
What expression is equivalent to -0.5x - 4?
Assoli18 [71]

Answer:

2x-32

Step-by-step explanation:

You would distribute the 4.

3 0
2 years ago
Which number line shows the solution to the inequality? y minus 2 less-than negative 5 A number line going from negative 8 to po
sveta [45]

Answer:

see explanation

Step-by-step explanation:

Solve the inequality

y - 2 < - 5 ( add 2 to both sides )

y < - 3

The number line going from - 8 to + 2

Since y is not equal to - 3 then an open circle at y = - 3

Since y is less than - 3 the shaded to the left of y = - 3

8 0
3 years ago
Read 2 more answers
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