Answer:
A. 8 square feet
Step-by-step explanation:
(5 + 3)/2 x 2 = 8
Answer:
81 mm^2
Step-by-step explanation:
Area= 3*6*9/2=81 mm^2
Answer:
There will be a minimum of 8,100 books with coloured illustrations.
Step-by-step explanation:
Change the percentages to fractions
90% = 9/10
Books with Illustrations: 9/10 of 10,000
Books in Colour: 9/10 of 10,000
Because both events are not mutually exclusive, they can happen at the same time. So multiply their fractions (probabilities).
9/10 * 9/10 =
9 * 9 = 81
10 * 10 = 100
The probability of having a book with coloured illustrations is 81/100.
Find this as a fraction of 10000.
10000 ÷ 100 × 81 = 8,100
Answer:
1.48 m
Step-by-step explanation:
In a class of 32 students
the mean height of the 14 boys is 1.56 meters.
the mean height of all 32 students is 1.515 meters.
Total number of students = 32
Mean height of all students = 1.515
We can obtain the sum of all student's height :
Number if students * mean height
= 32 * 1.515
= 48.48
Number of boys = 14
Mean height of boys = 1.56m
We can obtain the sum of all boys height :
Number if students * mean height
= 14 * 1.56
= 21.84
Number of girls :
All students - Number of boys
32 - 14 = 18
Sum of girls height :
48.48 - 21.84 = 26.64
Mean height of girls :
Sum of girls height / Number of girls
26.64 / 18
= 1.48 m
Answer:
C.) sin(11pi/6)
Step-by-step explanation:
construct triangle with a side perpendicular to x-axis
y=(-1)sin(pi/6)
y=sin(-pi/6)
y=sin((-pi/6)+2pi)
y=sin(11pi/6)
