Answer:
A = strong negative correlation
B = positive correlation
C = very weak or no correlation
Step-by-step explanation:
Scatter plot A:
A clear linear trend line could be observed having a negative slope ; the nature of the slope gives the nature of the correlation (positive or negative). Since the slope is negative then we have a negative correlation. The linear trend line is almost straight with only few points marginally missing the best fit line. Hence. We can conclude to have a strong negative correlation.
Scatter plot B :
Has a positive slope, and hence a positive correlation. The best fit line miss a few points but the linear trend of the plot is still observable. Hence, we can conclude to having a fairly strong positive correlation.
Scatter plot C :
From the graph, no linear trend can be observed and hence it is fit to say that no correlation exists between the points.
Answer:
40 magazines.
Step-by-step explanation:
- $200 pay from the bookstore.
- $2 every magazine sold.
- Needs $280 for her school trip.
She gets $200 from the book store the week she needs $280 for the school trip. Therefore, she only needs $80 in order to go.
$80 ÷ $2 = 40
40 magazines.
4x + 8(3x-7) = 22x -65 distributive property
4x +24x -56 = 22x -65distributive property
28x -56 = 22x -65 additive property
6x = -9 subtractive property
x = -3/2 division
Answer:
Step-by-step explanation:
<h3>Given</h3>
- Price = $79,
- Sales tax = 5%.
<h3>Solution</h3>
Find 5% of $79:
- 79 * 5/100 =
- 395/100 =
- 3.95
