A line segment can have both line symmetry and rotational symmetry.
Answer: C )
Answer:
<u>Width = 7 inches</u>
<u>Length = 23 inches</u>
Step-by-step explanation:
Let :
Equating to area :
- (2x + 9)(x) = 161
- 2x² + 9x = 161
- 2x² + 9x - 161 = 0
- 2x² - 14x + 23x - 161 = 0
- 2x(x - 7) + 23(x - 7) = 0
- x - 7 = 0
- x = 7
Dimensions are :
- <u>Width = 7 inches</u>
- Length = 2(7) + 9
- <u>Length = 23 inches</u>
I believe he made 169 cups of fruit salad, or is it a trick question?
(a)
We can see that
this is a straight line
and this is the graph of velocity
we know that
acceleration is the derivative of velocity
so, slope of curve of velocity is acceleration
so, we will find slope of this line
We can select any two points
(0,4) and (5,7)
we can use slope formula

now, we can plug points


we know that slope of line is always constant irrespective of any value of t
so, acceleration will always be same irrespective of any value of t
so, we will get acceleration
............Answer
(b)
we can see that acceleration is constant
and we know that
derivative of constant is always 0
so, instantaneous rate of acceleration at t=10s is 0........Answer
Hmmmm
the 1 in 435.15 is worth 0.1 or 1/10
1/10 of 1/10 is 1/10 times 1/10 or 1/100 or 0.1/10 or 0.01/1 or 0.01
so we want one with the 1 that is 2 spaces to the right of the decimal
that is choice H
remember, when you divide by 10, move the decimal to the left 1 space
H is the answer