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3 years ago

9

Find the value of x. 17 14

1 answer:

iren2701 [21]3 years ago

7 0

X= 3 is the answer to this question

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The sun burns 6 million tonnes of hydrogen a second. Calculate how many tonnes of hydrogen it burns a year (that's 365.25 days)

Illusion [34]

Your answer is 189,345,600,000,000 tons per year

There are 86,400 seconds in a day, and 365.25 days in a year. So 86,400*365.25= 31,557,600 seconds per year. Now if each second the sun burns 6 million tons we have to multiply that by the number of total seconds per year. So 31,557,600 * 6,000,000= 189,345,600,000,000 hydrogen tons per year.
Hope this helped :)

4 0

4 years ago

How to convert 2/3 to a decimal?

V125BC [204]

Divide the numerator (2) by the denominator (3) to convert it to a decimal

6 0

3 years ago

The speed of a car going 50 miles per hour is equivalent to a speed of 80 kilometers per hour. At this rate, what is the speed,

Ann [662]

Answer:

48 km/h

Step-by-step explanation:

80/50*30=48 km/h

3 0

3 years ago

Um....help?????????????????

fomenos

Answer:

y/9x

Step-by-step explanation:

$\frac{3*x*y^{5} }{27*x^{2} *y^{4} } =\frac{3*x*y*y^{4} }{3*9*x*x *y^{4} }$ symplify

$\frac{y }{9*x }$

5 0

3 years ago

Find the surface area (in terms of π) of a sphere if its volume is 972 π.

Sholpan [36]

Surface area of sphere is $Surface\,\,Area=324\pi$

Step-by-step explanation:

We need to find the surface area of the sphere while we are given volume of sphere = 972π

The formula used to find surface area is:

$Surface\,\,Area=4\pi r^2$

We need to find radius of sphere

We are given Volume = 972π, using this volume we can find radius of sphere

The formula used to find volume is:

$Volume=\frac{4}{3}\pi r^3$

Putting values and finding r

$972\pi =\frac{4}{3}\pi r^3$

$r^3=\frac{972\pi *3}{4\pi } \\r^3=729$

Taking cube root on both sides

$\sqrt[3]{r^3}=\sqrt[3]{729}\\ r=9$

So, Radius of sphere r=9

Now finding surface area:

$Surface\,\,Area=4\pi r^2$

$Surface\,\,Area=4\pi (9)^2$

$Surface\,\,Area=4\pi 81$

$Surface\,\,Area=324\pi$

So, surface area of sphere is $Surface\,\,Area=324\pi$

Keywords: Surface area of sphere

Learn more about Surface area of sphere at:

#leanwithBrainly

8 0

3 years ago