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3 years ago

WILL MARK BRAINLIST IF YOU'RE RIGHT AND SHOW YOUR WORK -easy question

Mathematics

1 answer:

Vaselesa [24]3 years ago

6 0

Answer:ok let try this one more time the volume is 1526.04 cm3

and the total surface area is 763.02 cm2

Step-by-step explanation:

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Find a point on the y-axis that is equidistant from the points (7, −7) and (1, 1).

jeka57 [31]

Hello :
<span>a point on the y-axis is : P( 0, y)
</span>PA = PB or PA² = PB².... A(7, -7) B(1,1)
(7-0)²+(-7-y)² = (1-0)² + (1-y)²
49+49+14y+y² = 1+1-2y+y²
16y = - 96
y= - 6

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3 years ago

Population Growth The population P (in thousands) of Oriando,Florida from 1980 through 2009 can be modeled by p = 130e0.0205t,wh

svetoff [14.1K]

Answer: a) 236,000.

b) 2021

Step-by-step explanation:

Given : Population Growth The population P (in thousands) of Oriando,Florida from 1980 through 2009 can be modeled by $p = 130e^{0.0205t}$ (1)

where t = 0 corresponds to 1980.

Then , for 2009

t= 2009-1980=29

a. ⇒The population of Phoenix in 2009 = $p = 130e^{0.0205(29)}$

$p = 130e^{0.5945}$

$p =130(1.81212465608)=235.57620529\approx236$

Hence, the population of Orlando in 2009 was about 236,000.

b) Substitute p= 300 in (1) , we get

$300 = 130e^{0.0205t}$

$2.3077= e^{0.0205t}$ (Divide both sides by 130)

Taking Natural log on both sides,

$\ln(2.3077) = 0.0205t\\\\\Rightarrow\ t=\dfrac{\ln(2.3077)}{0.0205}$

$t=\dfrac{0.836251357528}{0.0205}=40.7927491477\approx41$

Hence, The year Orlando will have a population of 300,000 =1980+41 =2021

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3 years ago

A store is having a big sale. Everything is 30% off. but for one day only, an extra 40% will be taken off of the discounted pric

agasfer [191]

Answer:

Step-by-step explanation:

It is really easy just subtract the money with the percentage

3 0

3 years ago

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Help please !!!!thank yo

goldfiish [28.3K]

Answer:

250

Step-by-step explanation:

There is a 200 start up cost plus 50 per month

Cost = 200 + 50m where m is the number of months

We have 1 month

Cost = 200 +50(1)

Cost = 250

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3 years ago

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What are the next three terms in the sequence -27, -19, -11, -3, 5, ...?

ddd [48]

Answer:

13, 21, 29

Step-by-step explanation:

the difference is 8

so add 8 to last numbers

3 0

3 years ago

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