Answer:
Step-by-step explanation:
1) x² + 6x + 11 = 0
a = coefficient of x² = 1
b = coefficient of x = 6
c = Constant = 11
Roots = (-b ± √b² - 4ac)/2a
Roots = 
2) 2x² - 16x = 50
Divide the whole equation by 2
x² - 8x = 25
Divide the coefficient of x (i. e 8 ) by 2 = 8/2 = 4, Now add 4 to both sides of the equation
x² - 8x + 4 = 25 + 4
x² - 2*4*x + 2² = 29
(x - 2)² = 29
Take square root both side
Answer:
Student A: Testing plant growth in different types of soils
Student B: Comparing the water level in a lake during different times of the year
Step-by-step explanation:
Student A because it requires a hypothesis
Student B because it requires a hypothesis Student
A because it can be done in natural settings
Student B because it can be done in natural settings
Answer:
1
Step-by-step explanation:
1) Round the tenths place up to 1:
1.1
Because 1 is smaller than 5, the nearest whole number is 1!
Answer:
6,812,019 ft cubed
Step-by-step explanation:
1/3(b*h)
1/3(153^2*873)
1/3(23,409*873)
1/3(20,436,057) = 6,812,019
Answer:
...
Step-by-step explanation:
can you show us the options of the drop-down menus?
