Circumference = 2 pi r
Circumference = 2 x 3.15 x 8.5 m
Circumference = 53.4 metres
Answer:
See below
Step-by-step explanation:
I think it’s four less than the quotient of a number cubed and seven, increased by three
I hope you get this right!
Answer:
So we have a triangle and a semicircle.
If the triangle is equilateral, this is:
AB = BC = 6cm
Then the area of the triangle is equal to (base*height)/2
in this case:
A = (6*6)/2 = 36/2 = 18cm^2.
And the diameter of the semicircle is equal to 6cm, then the diameter is 3cm
And if the area of a circle is A = pi*r^2
then the area of half a circle is:
A = (pi/2*)3^2 = pi*4.5cm^2
Then, the area of the triangle plus the area of the semicircle is:
Total area = 18cm^2 + pi*4.5^2
Answer:
Minor earthquakes occurred in the country in the last year were<u> 2326</u>.
Step-by-step explanation:
Given:
In the last year, a total of 2727 earthquakes occurred in the country.
Of these, 85.3 % were minor tremors with magnitudes of 3.9 or less on the Richter scale.
Now, to find the minor earthquakes occured in the country last year.
<em>Total earthquakes occurred in the country = 2727.</em>
<em>The percent of minor earthquakes = 85.3%</em>.
Now, to get the number of minor earthquakes:
85.3% of 2727.



<em>The number of minor earthquakes nearest whole number = 2326.</em>
Therefore, minor earthquakes occurred in the country in the last year were 2326.
Answer:
t = 5.25 seconds
Step-by-step explanation:
Given that,
A projectile with an initial velocity of 48 feet per second is launched from a building 190 feet tall. The path of the projectile is modeled using the equation:

It is assumed to find the time when the projectile will hit the ground. When the projectile hit the ground, its height is equal to 0 such that,

It forms a quadratic equation such that,

So, the projectile will hit the ground at t = 5.25 seconds.