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Andreyy89
2 years ago
7

Can someone please help me? Thank you so much! ^^

Mathematics
1 answer:
Sholpan [36]2 years ago
7 0

\text{Volume of hemisphere} = \dfrac 23 \pi \times r^3\\\\\implies 56  = \dfrac{2 \pi}3}  \times r^3\\\\\implies 56 \times 3 = 2 \pi r^3\\\\\implies r^3 = \dfrac{168}{2 \pi} \\\\\implies r =\sqrt[3]{\dfrac{168}{2\pi}} = 2.99 \approx 3~ cm

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Solve 6^x+2 = 10 for x using the change of base formula
pashok25 [27]

Answer:

x\approx-0.7149

Step-by-step explanation:

\displaystyle 6^{x+2}=10\\\\\log_6(6^{x+2})=\log_6(10)\\\\x+2=\frac{\log(10)}{\log(6)}\\\\x+2\approx1.2851\\\\x\approx-0.7149

Recall that the change of base formula is \displaystyle \log_a(b)=\frac{\log(b)}{\log(a)}

3 0
1 year ago
Can someone answer this question for me pls n thanks
allsm [11]

Answer:

Mean: 29.5;    Median: 26;    Modes: 25, 26

Step-by-step explanation:

Add 10+12+25+25+26+26+30+31+33+34+47+55 = 354

Then divide it by 12      354/12 = 29.5

Mode are numbers that appear most often which in this case are 2 numbers, 25 and 26.

8 0
2 years ago
5 t-shirt cost R120.how much will 9t-shirt cost​
Whitepunk [10]

Step-by-step explanation:

given

5 t-shirts = R120

(5÷5) t - shirt = R(120÷5)

1 t-shirt = R24

(1x9) t-shirts = R(9x24)

= R216

3 0
2 years ago
Round 89.99 to 1 decimal place
yanalaym [24]

Answer:

90

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
An ancient Sicilian legend says that the barber in a remote town who can be reached only by traveling a dangerous mountain road
faust18 [17]

Answer:

No there cannot be.

Step-by-step explanation:

In explaining this question, I would like us to take into account who the barber is,

" the barber is the one who shaves all those, and those only, who do not shave themselves".

This barber cannot be in existence because who would shave him? If he should shave himself then there is a violation of the rule which says he shaves only those who do not shave themselves. If he shaves himself then he ceases to be a barber. And if he does not shave himself then he happens to be under those who must be shaved by the barber, because of what the rule says. But then he is the barber.

This lead us to a contradiction.

Neither is possible so there is no such barber.

4 0
3 years ago
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