2hr 30 min difference
120 page difference
24 = 30 mins
24×4= 96
160-96=64
i think he started on page 64?
Answer:
The final answers are x = 5 OR x = -1.
Step-by-step explanation:
Given the equation is x^2 -5 = 4x
Rewriting it in quadratic form as:- x^2 -4x -5 = 0.
a = 1, b = -4, c = -5.
Using Quadratic formula as follows:- x = ( -b ± √(b² -4ac) ) / (2a)
x = ( 4 ± √(16 -4*1*-5) ) / (2*1)
x = ( 4 ± √(16 +20) ) / (2)
x = ( 4 ± √(36) ) / (2)
x = ( 4 ± 6 ) / (2)
x = (4+6) / (2) OR x = (4-6) / (2)
x = 10/2 OR x = -2/2
x = 5 OR x = -1
Hence, final answers are x = 5 OR x = -1.
Answer:
196cm²
Step-by-step explanation:
because the area of something is the length times the width, and since this is a square it is 14 x 14, or 14², which is 196cm²
To find a perimeter of any shape you just need to add together all the sides of the shape.
For example: /_\ (pretend this is a triangle)
If each side of the triangle is 5 cm, then 5+5+5=15 cm (or you can do 5*3=15 cm)
The perimeter of the triangle is 15 cm.
Hope I helped!(:
Using Pythagoras:-
x^2 = 6^2 + (sqrt18)^2
= 36 + 18 = 54
x = sqrt54 = 3 sqrt6
