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3 years ago

I NEED THIS FASTTT

Mathematics

1 answer:

34kurt3 years ago

8 0

a two dimensional figure

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The surface area of this cube is 96 square meters. what is the value of y?

ELEN [110]

The formula for finding the surface area of a cube is A=6y^2 where y is the side length. we know a=96. so we just isolate y.
96/6= 6y^2 / 6
16=y^2
sqrt (16) = sqrt(y^2)
4=y

So y is 4

5 0

4 years ago

Read 2 more answers

Help meeeeeee pleasee

k0ka [10]

Answer:

12x6=42 sorry if im wrong

Step-by-step explanation:

8 0

2 years ago

Will give brainliest for 5marks

anastassius [24]

Answer:

$230

Step-by-step explanation:

Work hours Monday till Friday:

3.5 + 5 + 2.5 + 4 + 2 = 18 hours

Payment for 5 days:

15*$8 + (18 - 15)*$10 = $150

Payment for Saturday:

5*2*$8 = $80

Total payment:

$150 + $80 = $230

5 0

2 years ago

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There are approximately 7.7 billion humans on Earth. If the virus spreads beyond the 200-person town, how long will it be until

eimsori [14]

Answer:

25.2 weeks until everyone on the planet is infected

Step-by-step explanation:

The number of infected people after t weeks has the following format:

$P(t) = P(0)(1+r)^{t}$

In which P(0) is the initial number of infected people and r is the growth rate, as a decimal.

The number of infected people doubles every week

This means that $P(1) = 2P(0)$

$P(t) = P(0)(1+r)^{t}$

$2P(0) = P(0)(1+r)$

$1 + r = 2$

$r = 1$

$P(t) = P(0)*(2)^{t}$

200-person town

This means that $P(0) = 200$

$P(t) = P(0)*(2)^{t}$

$P(t) = 200*(2)^{t}$

How long will it be until everyone on the planet is infected?

This is t for which P(t) = 7700000000[/tex]

$P(t) = 200*(2)^{t}$

$7700000000 = 200*(2)^{t}$

$2^{t} = \frac{7700000000}{200}$

$\log{2^{t}} = \log{\frac{7700000000}{200}}$

$t\log{2} = \log{\frac{7700000000}{200}}$

$t = \frac{\log{\frac{7700000000}{200}}}{\log{2}}$

$t = 25.2$

25.2 weeks until everyone on the planet is infected

4 0

3 years ago

If you have $20 on your debit card can you buy a volleyball

Angelina_Jolie [31]

Yes. depending on where you buy it and how much the ball costs

5 0

3 years ago