Answer:
I cannot answer all of this, so I will only answer what I can:
Q1: 13
Q3: 22.5
IQR: 13.5
IQR(1.5): 20.25
Q3 + IQR(1.5) = 43
Q1 - IQR(1.5) = -7.25
I don't know if my calculations are all right but I hope this helps! :)
Answer:
-1
Step-by-step explanation:
2x² - 5x + 7 is subtracted <em>from </em>x² + 2x - 11, so
(x² + 2x - 11) - (2x² - 5x + 7)
x² + 2x - 11 - 2x² + 5x -7 (Distribute the negative)
-x² + 7x - 18 (Combine like terms)
The leading coefficient is the coefficient of the first term, so it is -1.
Answer:
y = 9x - 11
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Calculate m using the slope formula
m = (y₂ - y₁ ) / (x₂ - x₁ )
with (x₁, y₁ ) = (- 3, - 38) and (x₂, y₂ ) = (8, 61)
m = 
= 
= 9, thus
y = 9x + c ← is the partial equation
To find c substitute either of the 2 points into the partial equation
Using (8, 61), then
61 = 72 + c ⇒ c = 61 - 72 = - 11
y = 9x - 11 ← equation of lie
Answer:
x=−12
Step-by-step explanation:
Let's solve your equation step-by-step.
7(x+3)=5x−3
Step 1: Simplify both sides of the equation.
7(x+3)=5x−3
(7)(x)+(7)(3)=5x+−3(Distribute)
7x+21=5x+−3
7x+21=5x−3
Step 2: Subtract 5x from both sides.
7x+21−5x=5x−3−5x
2x+21=−3
Step 3: Subtract 21 from both sides.
2x+21−21=−3−21
2x=−24
Step 4: Divide both sides by 2.
2x
2
=
−24
2
x=−12
Answer:
x=−12
