Answer:
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Step-by-step explanation:
25/3=8.33
29/4=7.25
36/5=7.2
Answer:
x = - 
Step-by-step explanation:
Given
(x - 9) = - 11
Multiply both sides by 3 to clear the fraction
2(x - 9) = - 33 ← distribute left side
2x - 18 = - 33 ( add 18 to both sides )
2x = - 15 ( divide both sides by 2 )
x = -
First we note symmetry in the expression's coefficients.
We also note that 7*3=21, and 7+3=10.
From the rational roots theorem, we are tempted to try with 3 and 7 as coefficients of the factors.
Try
(7b+3)(3b+7)=21b^2+(49+9)b+21
By switching the sign of 3b+7 to 3b-7, we get the signs right, to check:
(7b+3)(3b-7)=21b^2+(9-49)b-21=21b^2-40b-21 ....right!
So
(7b+3)(3b-7)=21b^2-40b-21
Answer:
Step-by-step explanation:
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Answer:
y = (-5/3)x + 4
Step-by-step explanation:
Line contains (-3, 9) and (3, -1)
slope A = Δy/Δx = (-1 - 9) / (3 - (-3)) = -10 / 6 = -5/3
y = (-5/3)x + B
find the intercept B by plugging in either known point set.
9 = (-5/3)(-3) + B
9 = 5 + B
B = 4
