Answer: 7 crayons
Step-by-step explanation:
To solve we first must find the total number of crayons available by adding up how many crayons are in each container.
56+12+96 = 160 crayons total
Next we take this number and divide it by 22 (the number of students in the class) to determine how many crayon each student gets
160 crayons/22 students = 7.272727 crayons per student
However, it's important to note that this number is not a whole number. We must then round down to the nearest whole number because students aren't given fractions of crayons.
7.272727 ==> 7 crayons per student
Step-by-step explanation:
The dimensions of the cuboid are 5 cm, 7 cm and 9 cm.
The formula for the surface area of the cuboid is as follows :

We have,
b = 9 cm, l = 7 cm and h = 5 cm
So,

Jamie forgets to multiply 143 by 2 as the formula for surface area contains 2 as well.
Answer: 0.0516
Step-by-step explanation:
Given : The number of defective components produced by a certain process in one day has a Poisson distribution with a mean of
.
The probability mass function for Poisson distribution:-
For x= 15 and
, we have

Hence, the probability that exactly 15 defective components are produced in a particular day = 0.0516
Answer: x^2 + 6x + 8
Step-by-step explanation: (x+2)(x+4) = x^2 + 4x + 2x + 8
= x^2 + 6x + 8