Answer:
b and E and c
Step-by-step explanation:
- A is false because some elements have the same image like 2.3 and 2.2 , 2.5 ...
- B is true because the image of an integer remains the same using the greatest integer function. So C is true
- E is true
Hey there!
To find the average of numbers, add the numbers up and divide by the amount of numbers. 46+52+54+51+49+61+51=364. Then divide by 7 because there’s 7 days. 364/7=52. The average, or mean, temperature for the week was 52 degrees.
I hope this helps!
There are 39 left handed students at Toms school
Answer:
x = -6 and x = 7
Step-by-step explanation:
x² - x - 42 = 0
find two number which
a + b = -1
a*b = -42
a = -7
b = 6
x² - x - 42 = 0
(x-7)(x+6) = 0
x-7 = 0
x = 7
x +6 = 0
x = -6
