4 years ago

What formular for surface area of hemisphere

1 answer:

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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7. You purchased crackers for $2.79, a steak for $5.27. ice cream for

bixtya [17]

Answer:

no who pays almost 9 bucks for ice cream

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4 years ago

Read 2 more answers

<img src="https://tex.z-dn.net/?f=%5Cfrac%7B4%7D%7B%5Csqrt%7B13%7D%7D" id="TexFormula1" title="\frac{4}{\sqrt{13}}" alt="\frac{4

mafiozo [28]

Answer:

$\frac{4}{ \sqrt{13} } \times \frac{ \sqrt{13} }{ \sqrt{13} } = \frac{4 \sqrt{13} }{13}$

I hope I helped you^_^

5 0

3 years ago

Let g(x)=2x and h(x)=x^2+4 find the value. (hog)(a)

lisov135 [29]

In short, (h o g)(a) is just h( g(a) ).

so what we can do is simply get g(a) first and then plug that in h(x).

$\bf \begin{cases}
g(x)&=2x\\
h(x)&=x^2+4\\
(h\circ g)(a)&=h(~~g(a)~~)
\end{cases}
\\\\\\
g(a)=2(a)\implies g(a)=2a
\\\\\\
h(~~g(a)~~)\implies h(~~2a~~)=(2a)^2+4
\\\\\\
h(~~2a~~)=(2^2a^2)+4\implies h(~~2a~~)=4a^2+4$

8 0

4 years ago

The ages of the members of a family are 65, 58, 27, 25, 5, and 2 years old. What is the total admission price for the family to

const2013 [10]

Answer:$62

Step-by-step explanation: 62 becuase I took your formula and plugged it in. There are 2 kids under 12 so thats $16, then there are 3 people who are 12-59 that equals $52, then 1 person who is over 60. So $62.

6 0

2 years ago

Given that tanθ almost equal to≈ 2.773 where 0<θ<π2, find the values of sinθ and cosθ. Show work.

postnew [5]

Step-by-step explanation:

the given data is

tanθ = 2.773 and 0<θ<π/2

this implies θ = tan inverse(2.773)

⇒ θ = 70.16°

Therefore, sinθ = sin70.16° = 0.9406

similarly,cosθ = cos70.16° = 0.3393

therefore, values of sinθ and cosθ are 0.9406 and 0.3393 respectively.

3 0

3 years ago