Answer:
-1/4
Step-by-step explanation:
You just need to see what number is being divided from each term
Answer:
No. It's 15,609
Step-by-step explanation:
The fifteen thousand represents the 15,000
The six hundred is 600
The nine is 9.
So it is 15,609
Answer:
4187 ft³
Step-by-step explanation:
πr³
π = 3.14
r = radius
the diameter is the straight line that passes through the centre of a circle and touches the two edges of the circle.
A radius is half of the diameter
diameter = 2r
Radius = 20 / 2 = 10 feet
(4/3) x 3.14 x 10³ = 4187 ft³
Answer:
the angles are 35⁰, 70⁰ 75⁰
Step-by-step explanation:
the three angles are = x⁰ +2x⁰+(2x+5)⁰= 180⁰
5x+5= 180
5x= 175
x= 175/5= 35⁰
2x= 70⁰
2x+5= 75⁰
Answer:
14.54
Step-by-step explanation:
In a <em>weighted average</em> a “weight” is associated to each value.
The weighted mean is computed the following way:
Suppose you want to calculate the weighted mean of the values
a1, a1, …, an
with weights
w1, w2,..., wn
Then
<em>Weighted mean</em> =(w1*a1+w2*a2+... +wn*an)/(w1+w2+...+wn)
In this case we have
a1= 12, w1 = 8
a2 = 13, w2 = 6
a3 = 17, w3 = 12
<u>Weighted mean </u>
(12*8+13*6+17*12)/(8+6+12) = 14.54 rounded to 2 decimal places.
