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3 years ago

What is the volume of a hemisphere with a radius of 1.6 and height of 6.2?

1 answer:

6 0

You can find the area of a hemisphere by using the following equation

V = (2/3) (pi)*r^3

so V = (2/3) (pi)*1.6^3

Which comes out as 8.5786423394 or 8.6

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Simplify 9x - 4 + 3x

rewona [7]

Answer:

$4(3x - 1)$

Step-by-step explanation:

$9x - 4 + 3x$

Adding 9x & 3x gives 12x.

$= > 12x - 4$

Now taking 4 common from both the terms , we get :-

$4(3x - 1)$

3 0

3 years ago

Select all the expressions equvilants to 1.5 x 4 + 3 x 2 - 7

Step2247 [10]

The answer is C. 6+3 x (-5)

7 0

2 years ago

If a dozen eggs cost $1.35, what is the unit cost?

Ulleksa [173]

Total eggs=12
dozen eggs cost =1.35 dollars
one egg =12/1.35
=0.11 dollars

4 0

3 years ago

WILL GIVE BRAINLIEST! Find k so that (5, k) is equidistant from (–1, 2) and (3, 0).

pochemuha

Answer:

Step-by-step explanation:

So first I created 2 distance forumlas and set them equal to each other

$\sqrt{(5+1)^2+(k-2)^2} =\sqrt{(5-3)^2+(k)^2}$

then I simplified them

$(5+1)^2+(k-2)^2 =(5-3)^2+(k)^2\\$

$36 + k^2 - 4k +4 = k^2 + 4$

$-4k + 36 = 0\\$

$4k = 36$

$k = 9$

when k = 9, the two distances are equal

7 0

3 years ago

MATH HELP PLEASE WILL GIVE BRAINLIEST

Anni [7]

1. 10
2. 5√2 in
1. The ratio for a 30-60-90 triangle is x:x√3:2x
x is the shortest leg so 2*x =2*5 = 10
2. the ratio of a 45-45-90 triangle is x:x:x√2
x is one leg so x * √2 = 5*√2 = 5√2

8 0

3 years ago