2x^2 + 3x + 8 = 0
Answer: B) -3 + I √55 over 4.
Answer:
x=3
Step-by-step explanation:
2^x=9-1
2^x=8
2^x=2^3
x=3
Answer:
300 mL
Step-by-step explanation:
2L is the same as a regular coke a cola bottle at the store, 300 mL is smaller
Answer:
1. figure 4 ; 2. figure 1; 3. figure 3 .
Step-by-step explanation:
1. The correlation coefficient is closest to 1 for the data-set relating to figure 4.
2. The least evidence of a linear relationship is shown by the data-set relating to figure 1.
3.The correlation coefficient r appear to be equal to -1 for the data-set relating to figure 3.
We know that as more the modulus of the correlation coefficient (r) approaches 1, more the figure related to the data-set starts to resemble a straight-line.
The line of linear regression takes a positive slope for a positive value of r and takes a negative slope for a negative value of r.
Moreover, more the modulus of r approaches 0, more there is absence of linearity in the scatter plot.
Length is 3 times the width
So L = 3W
If L is decreased by 4m and with increased by 1m and perimeter is 66 then
2(3W - 4) + 2(W + 1) = 66
6W - 8 + 2W + 2 = 66
8W - 6 = 66
8W = 72
W = 9
L = 3 x 9 = 27
Width of rectangle = 9 m and length = 27 m
New rectangle:
Width is increase by 1 m = 9 + 1 = 10 m
Length is decreased by 4 m = 27 - 4 = 23 m
Answer
Dimensions of new rectangle are 10 m and 23 m