Answer:
40
Step-by-step explanation:
it would be first bodmas so
(15) /3 * root 64
5 * root 64
5*8
40
Sorry, I'm no help because I have no idea how to do those!
Graph of Parallel lines shows a system of equations with no solutions
Step-by-step explanation:
Consider a set of equations
If we solve this both equations using any one of the solving method, (Substitution method) then we will get
substituting the following x in 2nd equation (21x + 6y = 24) We get
Put y= -2 in x equation
Comparing these (x,y) values we can understand that they never meet at a point
Answer:
If one cup is 8 then 3 cups is 24
Step-by-step explanation:
This can be solved by multiplying:
1*8=8
3*8=24
Answer:
A) -2 - i√3 , -2 + i√3
Step-by-step explanation:
Solve using quadratic formula
x² + 4x + 7 = 0
The Almighty Formula
= -b ± √b² - 4ac/2a
Where ax + bx² + c = 0
From the above question
a = 1, b = 4, c= 7
Hence,
-4 ± √4² - 4 × 1 × 7/2 × 1
-4 ± √16 - 28/2
=( -4 ± √-12)/2
Since
b² - 4ac < 0
We have two complex roots
Simplifying
( -4 ± √-12)/2
= -4/2 ± √-12/2
= -2 ± 2√3i/2
= -2 ± √3i
Therefore,
-2 - √3i , -2 + √3i
or
-2 - i√3 , -2 + i√3
Option A , is the correct answer
