In a certain grocery store, strawberries cost $6.40 per pound ( 6.40 dollars/lb ). What is the cost per ounce?
1 answer:
Solution:
we are given that
In a certain grocery store, strawberries cost $6.40 per pound ( 6.40 dollars/lb ).
we have been asked to find the cost per ounce?
As we know that
16 oz=1 lb
so we will divide by 16 to get the cost per ounce.
strawberries cost $6.40 per pound so for 1 oz it will cost $
Hence cost per ounce is 0.40 $
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The simplified expression is (r) (4
x s³) is 4r³.
The amount of times a number has been multiplied by itself is shown by its exponent. The result of multiplying 8 by itself n times is represented as follows:
8 x 8 x 8 x 8 x …..n times = 8n
Given:
(r) (4
x s³)
Now, using the law of exponents we have
So,
(r) (4
x s³)
= 4 x
= 4r³ x s°
= 4r³
Hence, the simplified expression is (r) (4
x s³) is 4r³.
Learn more about exponents here:
#SPJ1
Answer:
Step-by-step explanation:
- F(x)= (x-2)(x-3)
This form is already factored so it can help us to find the intercepts with the x-axis
how ?
- The intercepts with the x-axis are simply the points where f(x)=0
from the factored form we can deduce that x=2 and x=3 are the points that represent the intercepts with the x-axis since f(2)=0 and f(3)=0
- The intercept with the y-axis is the image of 0 so f(0)=(0-2)(0-3)=6
so :
- The intercepts with the x-axis are (2,0) and (3,0)
- The intercept with they-axis is (0,6)
To get the standard form we should develop :
- f(x)=x²-3x-2x+6
= x²-5x+6
now the vertex form with the axis of symmetry :
- There are many ways to do it but here is the simplest one :
the standard form is x²-5x+6 :
- b= -5
- a= 1
- c= 6
The coordinates of the vertex are : (,f(
) )
- let A be the vertex : a(
,
)
- the axis of simmetry is x= 5/2
- The vertex form is : 1*(x-