<u>Given </u><u>:</u><u>-</u>
- Milo bought 12 nails for $6 .
<u>To </u><u>Find</u><u> </u><u>:</u><u>-</u>
- To find the cost for 2 , 4 and 8 nails.
<u>Answer:</u><u>-</u>
According to the question ,
- Cost of 12 nails = $6
- Cost of 1 nail = $6/12
- Cost of 1 nail = $0.5
<u>Cost</u><u> </u><u>for </u><u>2</u><u> </u><u>nails </u><u>:</u><u>-</u>
- Cost of 2 nails = $0.5 *2 = $1
<u>Cost for 4 nails :-</u>
- Cost of 4 nails = $0.5 *4 = $2
<u>Cost for </u><u>8</u><u> </u><u>nails :-</u>
- Cost of 8 nails = $0.5 *8 = $4
Answer:
x ≈ 2.55
Step-by-step explanation:
Since the triangles are congruent then DE ≡ AB , that is
DE = AB
76x - 7 = x + 184 ( subtract x from both sides )
75x - 7 = 184 ( add 7 to both sides )
75x = 191 ( divide both sides by 75 )
x ≈ 2.55 ( to the nearest hundredth )
Answer:
The 95% confidence interval for the mean is between 0.985g/cm² and 1.047 g/cm².
Step-by-step explanation:
We have that to find our 
level, that is the subtraction of 1 by the confidence interval divided by 2. So:
Now, we have to find z in the Ztable as such z has a pvalue of 
.
So it is z with a pvalue of 
, so 
Now, find M as such
In which 
is the standard deviation of the population and n is the size of the sample.
The lower end of the interval is the mean subtracted by M. So it is 1.016 - 0.0310 = 0.985 g/cm²
The upper end of the interval is the mean added to M. So it is 1.016 + 0.0310 = 1.047 g/cm²
The 95% confidence interval for the mean is between 0.985g/cm² and 1.047 g/cm².
It's simple,
f(x)=x^2+2
is the formula that you start with
you are then given f(x). f(4x)
you then plug in 4x
4x=(4x)^2+2
you then solve for x
4x=16x+2
-16x. -16x
-12x=2
÷-12. ÷-12
x=0.16 is your answer
