Answer:
x=40
Step-by-step explanation:
subtract first then multiply
7*38=7x-14
move terms 266=7x-14
calculate-7x=-14-266
divide both sides by -7 (-7x=-280)
solution x=40
Sur it's a function because for each x value corresponds one and only one y value.
Another easy way to determine if y is a function is to apply the vertical test:
If you draw a vertical line and this lines intersects the graph in one point, then y is a function
Answer:
x=14.5
Step-by-step explanation:
since we know the sum of a triangles interior angles equal 180, we can subtract 66 from 180
180-66=114
6x-8+2x+6=114 - combine like terms
8x-2=114 - add 2 to both sides
8x=116 - divide by 8
x=14.5
angle a= 79
angle n=35
Answer: 0.1
Step-by-step explanation:
Given : A Houston department store sampled 80 items sold in January and found that 8 of the items were returned.
In other words, sample size : <em>n</em>=1040
Number of items returned : <em>x</em>= 8
Let <em>p</em> be the proportion of items returned for the population of sales transactions at the Houston store.
As per sample , the sample proportion of items returned for the population of sales transactions at the Houston store is :

As we know that , <em>the sample proportion is the best estimate of the population proportion.</em>
Therefore,a point estimate of the proportion of items returned for the population of sales transactions at the Houston store is 0.1.
Step-by-step explanation:
1.8×10 to the power of 8
8.0×10 to the power of 6
1.2 ×10 to the power of 6
2.4×10 to the power of 2