A scale of 1:40 can be read as "one cm on the model corresponds to 40 cm in the original object". or
"one inch on the model corresponds to 40 inches
this means that the 2 inches correspond to 2 times 40, that is 80 inches and 1.5 corresponds to 1.5*40=60 inches
which means that the original painting has dimensions of 80 by 60 inches.
b) Area = 80 cm * 60 cm = 4,800 cm²
c) 80 cm * 1 inch / 2.54 cm = 31.50 inches ;
60 cm * 1 inch/2.54 cm = 23.60 inches
d) Area = 31.50 in * 23.60 in = 743.40 inches²
$1.00 per 8 ounces, since it isn't in the simplest form (which isn't a unit rate)
Answer:
A. y = -1/3x -2
Step-by-step explanation:
The given line is in the slope-intercept form with slope -1/3 and intercept +6. The desired parallel line will have the same slope (-1/3) and the intercept will change to -2. Its equation is thus ...
y = -1/3x -2
Answer:
See below
Step-by-step explanation:
B) The correlation coefficient is , which can be determined by plugging the data into a TI-84 calculator.
C) A correlation coefficient of indicates that the correlation between the independent and dependent variable (x and y in this case) is moderately strong with a positive correlation. The closer is to 1, the stronger the positive correlation. The closer is to -1, the stronger the negative correlation. If is closer to 0, then there's no correlation.