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3 years ago

A garden has a diameter of 8 yards. What is the area of the garden. use 3.14 for pi.

1 answer:

6 0

The volume of a gas in a container varies inversely with the pressure on the gas. If a gas has a volume of 250 cubic inches under a pressure of
4 pounds per square inch, what will be its volume if the pressure is increased to 20 pounds per square inch? (Round off your answer to the nearest cubic inch.)

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Help :(

Galina-37 [17]

Answer:

59.7

Step-by-step explanation:

you divide 39.80 by 10

then times it with 15 and get your answer

7 0

3 years ago

Yet another question.

inna [77]

Answer:

t= 3 years

Step-by-step explanation:

So far we have 2 useful relationships $P_{t}= P_{o} e^{r*t}$ and $P_{t}=2P_{0}$

Now, clearing t

$P_{t}= P_{o} e^{r*t} \\\frac{ P_{t}}{P_{o}} = e^{r*t}\\\frac{2 P_{0}}{P_{o}} = e^{r*t}\\2 = e^{r*t}$

I apply logarithm

$log(2)=r*t\\ t=\frac{log(2)}{r}\\t=\frac{0.3}{0.1} \\ t=3$ years

Done

4 0

4 years ago

sukhopar [10]

Answer:

(a) 1km

(b)80 fence panels

Step-by-step explanation:

(a) perimeter = 300+300= 600

200+200= + 400

=1000m

1km = 1000m

(b).

1panel = 2.5 m 1× 200÷2.5 = 80

=200m

7 0

3 years ago

Projected time:30 seconds, actual time 27 seconds

slega [8]

3 seconds and what are you saying need more information

3 0

3 years ago

1/sin30 - √3/cos10 =4 prove it?

Crank

Step-by-step explanation:

1/sin10-√3/cos10

= (cos10 - √3sin10)/cos10sin10

multiplying 1/2 in denominator and numerator

= {(cos10/2) - (√3sin10/2)}/(cos10sin10/2)

= (cos60cos10 - sin60sin10)/(cos10sin10/2)

= cos(60 + 10)/(cos10sin10/2)

= cos70/(cos10sin10/2)

= 2cos70/cos10sin10

multiplying 2 on numerator and denominator

= 4cos70/2sin10cos10

=4cos70/sin20

=4cos70/cos70

= 4 proved

8 0

3 years ago