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7nadin3 [17]
2 years ago
5

Help plz:)))I’ll mark u Brainliest

Mathematics
1 answer:
kobusy [5.1K]2 years ago
7 0

Answer:

Step-by-step explanation:

since we were handily told the formula for the volume of a hemisphere in your last problem , just use that,    2/3\pir^{3}

2/3\pi15^{3} =   got it?

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Match the equations with their solutions over the interval [0, 2π].
nignag [31]

I solved this using a scientific calculator and in radians mode since the given x's is between 0 to 2π. After substitution, the correct pairs are:

cos(x)tan(x) – ½ = 0 → π/6 and 5π/6

cos(π/6)tan(π/6) – ½ = 0

cos(5π/6)tan(5π/6) – ½ = 0

 

sec(x)cot(x) + 2 = 0 → 7π/6 and 11π/6

sec(7π/6)cot(7π/6) + 2 = 0

sec(11π/6)cot(11π/6) + 2 = 0

 

sin(x)cot(x) + 1/sqrt2 = 0 → 3π/4 and 5π/4

sin(3π/4)cot(3π/4) + 1/sqrt2 = 0

sin(5π/4)cot(5π/4) + 1/sqrt2 = 0

 

csc(x)tan(x) – 2 = 0 → π/3 and 5π/3

csc(π/3)tan(π/3) – 2 = 0

csc(5π/3)tan(5π/3) – 2 = 0

5 0
3 years ago
Read 2 more answers
Luke live 0.4 kilometer from a skating rink. Marie lives 0.25 kilometer from the skating rink. Who lives closer to the skating r
inessss [21]
Marie because if you put a 0 behind .4 that equals .40 and then you compare .25 and .40 therefore .25 is closer 
3 0
2 years ago
A gardener has 27 pansies and 36 daisies. He plants an equal number of flowers in each row. What is the greatest possible number
Serggg [28]
There would be a a row of seven and would be 9 in each row
7 0
3 years ago
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A metric unit that is equal to one thousandth of a liter is...
Mkey [24]

Answer:

mililiter

Step-by-step explanation:

5 0
2 years ago
If a car is traveling at 120 km/s within 120 min, what is its distance? (Remember: 60 seconds = 1 min. 120 km = 120,000 m) *
Nitella [24]

Answer:

d=864\times 10^6\ m

Step-by-step explanation:

Given that,

Speed of a car, v = 120 km/s

It takes 120 minutes

v = 120000 m/s

t = 7200 s

We need to find the distance covered. Speed is given by :

v = distance/time

d=v\times t\\\\d=120000\ m/s\times 7200\ s\\\\d=864\times 10^6\ m

So, the distance covered is 864\times 10^6\ m.

3 0
3 years ago
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