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andrezito [222]
3 years ago
13

Solve the equation for the indicated variable ab+9=3b-5c for b

Mathematics
1 answer:
mote1985 [20]3 years ago
7 0
ab+9=3b-5c \ \ |-3b\\ \\ -3b+ab  +9=3b-3b-5c \\ \\ -3b +ab+9=-5c \ \ | -9 \\ \\-3b+ab+9 -9=-5c-9 \\ \\-3b +ab =-5c-9 \ \ / \cdot (-1) \\ \\ 3b-ab =5c+9 \\ \\b(3-a)=5c+9 \ \ /:(3-a)\\ \\b=\frac{5c+9}{3-a}

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Which of the following estimates at a 95% confidence level most likely comes form a small sample?
KonstantinChe [14]

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6 0
2 years ago
Find the distance between the points (2, 4) and (8,-8) on a coordinate plane, to the nearest whole number.
Alisiya [41]

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8 0
3 years ago
Question 9 (3 points)
Lilit [14]

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3 years ago
A line passes through (-1,5) and (1,3) what is the equation of the line
chubhunter [2.5K]

Answer:

y = -x + 4

Step-by-step explanation:

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(1,3)....x2 = 1 and y2 = 3

slope(m) = (y2 - y1) / (x2 - x1) = (3 - 5) / (1 - (-1) = -2 / (1 + 1) = -2/2 = -1

y = mx + b

slope(m) = -1

u can use either of ur points...I will use (1,3)...x = 1 and y = 3

now we sub and find b, the y int

3 = -1(1) + b

3 = -1 + b

3 + 1 = b

4 = b

ur equation is : y = -x + 4 <===

4 0
3 years ago
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Yes, a cubic equation can have three real roots if it cuts the x-axis three times.
7 0
4 years ago
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