Answer:
x= -1 is the another zero of the given function.
Step-by-step explanation:
We have been given a function:
The zero of the function is that point where the function vanishes or the value of the function becomes zero.
From the given four values we will put the values in the function and wherever we get zero is the zero of the function.
put x= -1 we get:
Hence, x= -1 is the another zero of the given function.
Answer: 2.4 pounds of the type of nut that sells for $3.00/lb and 4.8 pounds of the type of nut that sells for $5.40/lb would be needed.
Step-by-step explanation:
Let x represent the number of pounds of the type of nut that sells for $3.00/lb that you would need.
Let y represent the number of pounds of the type of nut that sells for $5.40/lb that you would need.
You would like to have 7.2 lbs of a nut mixture. It means that
x + y = 7.2
The mixture would sell for $4.60/lb. It means that the cost of the mixture would be
4.6 × 7.2 = $33.12
This means that
3x + 5.4y = 33.12- - - - - - - - - 1
Substituting x = 7.2 - y Intl equation 1, it becomes
3(7.2 - y) + 5.4y = 33.12
21.6 - 3y + 5.4y = 33.12
- 3y + 5.4y = 33.12 - 21.6
2.4y = 11.52
y = 11.52/2.4
y = 4.8
x = 7.2 - y = 7.2 - 4.8
x = 2.4
Answer:
1 pint is 0.85 dollars or 85 cents
Step-by-step explanation:
1 pint= 0.125 gal, so 8 pints= 1 gal
27.20/4 is 6.8 (for 1 gal)
6.8/8 is 0.85 (for 1 pint)
85 cents per pint
Answer:
0.04
Step-by-step explanation:
X~N(μ=14.2; σ=0.9), a=7
P(X>7)=1-0.96=0.04
