The easiest way is to show him the formula for the area of a sphere:
Area = 4 π (radius)²
That's a good thing to discuss, because it's a good thing to remember,
and discussing it will help him remember it.
The important part to look at is the part where it says " (radius)² " .
That tells you that if you multiply the radius by (Anything), then
the area is multiplied by (Anything)² .
Since he multiplied the radius by 2, the area was multiplied by (2)² = 4 .
Answer:
c
Step-by-step explanation:
only one with negative 1
Grandma Gertrude gave 13 pieces of jewelry and Grandma Fien gave y pieces of jewellery
total jewellery given =y+13
there are five sisters
so each sister will receive (y+13)/5 pieces of jewellery
The perimeter of a shape is the sum of its side lengths.
<em>Joshua miscalculated the third length of the triangle</em>
First, we calculate the third length (x) of the triangle.
Because the triangle is right-angled, we can make use of Pythagoras.
So we have:
Take square roots of both sides
The other shape in the figure is a square.
So, the perimeter (P) is
---- i.e. the sum of the visible lengths
So, we have:
Evaluate like terms:
Hence, Joshua's error is that:
<em>He miscalculated the third length of the triangle</em>
Read more about perimeters at:
brainly.com/question/6465134
Answer:
about 54% of the people surveyed were females
Step-by-step explanation:
to calculate the % of females out of everyone, you need to add everyone up, and then add up only the females.
119+150+447+735+1174+103+171+512+710+756=4877
4877 is the Total number of people surveyed
119+150+447+735+1174=2625
2625 is the total number of females surveyed
so
to convert 2625/4877 to a %, first turn it into a decimal
2625/4877=0.538
now multiply 0.538 by 100
0.538*100=53.8%
so about 54% of the people surveyed were females