Answer:
a)How many different ways can you allocate the 22 students to the projects? =2300
b) how many different ways can you allocate the 22 students to the projects= 286
Step-by-step explanation:
check attachment for detail explanations
Answer:
∠ DBE = 25.5°
Step-by-step explanation:
Given ∠ DBC = 90° and ∠ DBE + ∠ EBC = ∠ DBC, then
∠ DBE = ∠ DBC - ∠ EBC = 90° - 64.5° = 25.5°
Answer:y=-4
Step-by-step explanation:
To find this
We get,
The difference between the square of the number
Let y be the unknown number
Square of y=y^2
Y^2-28=3y
Then let we are going to rearrange, then we get
y^2-3y-28
We are going to factorise
y^2-7y+4y-28
(y^2-7y+(4y-28)
y(y-7)+4(y-7)=0
(y+4)(y-7)=0
To find the negative number then we have
y=-4
Answer:
option 2
Step-by-step explanation:
the cosine rule is
cos A = b² + c² - a² / 2bc
so, A is x°
a is 41
b is 37
c is 63
solving the equation will give you the value of x°