Answer:
C. -31
Step-by-step explanation:
To solve this problem, first you have to order of operations stands for PARENTHESIS, EXPONENTS, MULTIPLY, DIVIDE, ADD, and SUBTRACT the numbers from left to right. Please Excuse My Dear Aunt Sally!
First, parenthesis.
(4+2)=6
5-6²
Then, exponent.
6²=6*6=36
5-36
Subtract numbers from left to right.
5-36=-31
As a result, the correct answer is -31.
<h2>Hope this helps!</h2><h2 /><h2>Have a wonderful blessing day! :)</h2><h2 /><h2>Good luck! :)</h2>
Answer:
answer E
Step-by-step explanation:
Answer:
44 swimmers
Step-by-step explanation:
Given the data points :
66, 8) (71, 23) (72 16) (75 30) (78 35) (80 24) (82 37) (86 37) (87 42) (90 50)
Temperature X:
66
71
72
75
78
80
82
86
87
90
Number of swimmers Y:
8
23
16
30
35
24
37
37
42
50
Using the online regression calculator :
The regression model obtained is ;
ŷ = 1.5045X - 88.2056
Where
1.5045 = gradient or slope
-88.2056 = intercept
x = independent variable
y = dependent variable
Number of swimmers when temperature = 88
y = 1.5045(88) - 88.2056
y = 44.19
y = 44 (nearest whole number)