Answer:
Thickness of each piece could be given by:
(Height of stack ÷ population of the stack)
(1.875 ÷ 500) = 0.00375
Step-by-step explanation:
Number of pieces of paper in a stack = 500
Height of the stack = 1.875
Diego's guess about the Thickness of each piece of paper = 0.015
Thickness of each piece could be given by:
(Height of stack ÷ population of the stack)
(1.875 ÷ 500) = 0.00375
Comparing Diego's guess with the calculated Thickness,
0.00375 is much lesser than 0.015
Hence, Diego is incorrect.
Answer:
Step-by-step explanation:
Hello!
The standard form of a quadratic is .
To convert the vertex form to standard form, we have to expand the parenthesis and add the constant.
Convert:
The standard form is
4.25 is the correct answer
Answer:
Option: a is correct
a) y= -cos x
Step-by-step explanation:
We could clearly see that the graph of the function passes through a point on the y-axis which is :
(0,-1)
i.e. when x=0 the value of the function y= -1
So we will check in each of the following options by putting x=0 and check whether y= -1 or not.
b)
y=sin x
on putting x=0 we get:
y=sin 0=0≠ -1.
Hence, option b is incorrect.
c)
y= cos x.
we put x=0
y= cos 0=1≠ -1.
Hence, option c) is incorrect.
d)
y= -sin x
we put x=0 to obtain:
y= -sin 0=0≠ -1.
Hence, option d is incorrect.
Hence we are left with option a i.e.
The graph represents the function:
y= -cos x. (Hence, option a is correct)
( Also it satisfies at x=0
since, y= -cos 0= -1 )
B and C are correct, hope this helps!