Help ASAP i'll mark u brainliest pls

Mathematics

1 answer:

Lena [83]3 years ago

4 0

Answer:

About 4 hours.

Step-by-step explanation:

To find the answer we will add both percentages of Watching TV and Homework. 8% + 13% = 21%. Now we will divide 100 by 21 and we get 4 hours a day.

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(X*4^8)/4^5 Help I need help TONIGHT

mina [271]

x • 4^8 x
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4^5 4^(-3)

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4 years ago

The volume of a sphere is 28/3 times it surface area, find the surface area

pentagon [3]

Answer:

615.44 units squared

Step-by-step explanation:

Let the volume and surface area of the sphere be V and S respectively.

$\therefore V = \frac{28}{3} \times S\\\\\therefore \frac{4}{3} \pi {r}^{3} = \frac{28}{3} \pi {r}^{2} \\ \\ \frac{ {r}^{3} }{ {r}^{2} } = \frac{28\pi}{3} \times \frac{3}{4\pi} \\ \\ r = 7 \: units \\ \\ \because S = 4\pi {r}^{2} \\ \\ \therefore \: S = 4 \times 3.14 \times {7}^{2} \\ \\ \therefore \: S = 12.56 \times 49 \\ \\ \therefore \: S =615.44 \: {units}^{2}$

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3 years ago

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Rina8888 [55]

This question is based on logic.

As given, there are three friends, Jose, Michael, and Andrea. They are playing a game where each decides to be either a liar or a truth teller. A liar must always lie and a truth teller must always tell the truth.

As Michael stated, "Jose said that he is a liar." this means Michael is a truth teller because as per the game rule, he is telling the truth. So this gives Jose as a liar.

Andrea said, " If one of us is a liar, then we are all liars." This makes Andrea a liar as Michael's statement already proved that he is the truth teller.

Hence, Michael is a truth teller and Jose ans Andrea are liars.

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