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DerKrebs [107]
3 years ago
12

What is the value of b in the equation 3b + 2(b − 1) = 8?

Mathematics
2 answers:
Ray Of Light [21]3 years ago
7 0
<span>3b + 2(b − 1) = 8
3b + 2b - 2 = 8
5b = 10
b = 2

answer b = 2</span>
salantis [7]3 years ago
5 0
So to start out the equation, you would have to distribute the 2 to the numbers and letters in the parenthesis. This should get me to:3b+2b-2=8. Add 2 on both sides of the equation and add up like terms. Now the equation looks like this: 5b=10. Now divide 5 to both sides which should give you b. b=2 I hope this helps you!
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Trying to solve y + 4 = -5/3(x-5) Do I get y = -5/3x + 25/3 or do I multiply everything by 3 to get -15x + 21? Provide how.
grin007 [14]

Step-by-step explanation:

you could multiply 3 by everything to get rid of the fraction but you would still have to the equation after multiplying

7 0
3 years ago
Find p(2) and p(4) for the function p(x) = 6x4 + 4x3 – 3x2 + 8x + 15.
gulaghasi [49]

Answer:

p(2) =147 and p(4) = 1791

Step-by-step explanation:

We are given p(x)= 6x^4 + 4x^3 – 3x^2 + 8x + 15.

Now we need to find value of p(2) and p(4)

Put x =2,

p(2) = 6(2)^4 + 4(2)^3 – 3(2)^2 + 8(2) + 15

p(2) = 6(16)+4(8)-3(4)+8(2)+15

p(2) = 96+32-12+16+15

p(2) = 147

Now put x = 4

p(4) = 6(4)^4 + 4(4)^3 – 3(4)^2 + 8(4) + 15

p(4) = 6(256)+4(64)-3(16)+8(4)+15

p(4) = 1536+256-48+32+15

p(4) = 1791

3 0
3 years ago
Read 2 more answers
Tell whether the lines through the given points are parallel, perpendicular, or neither.
ira [324]

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y = (9/2)x + b

3 = (9/2)(2) + b

3 = 9 + b

b = -6

y = (9/2)x  - 6

 

Line 2: (5, 10) , (14,8)

m = (8 - 10)/(14 - 5) = -2/9

this slope is the opposite sign, and inverse of the first equation's slope.  Therefore, the line is perpendicular.

y = mx + b

8 = (-2/9)(14) + b

8 = -28/9 + b

11.11 = b

y = (-2/9)x + 11.11

Step-by-step explanation: Hope this helps :)

7 0
2 years ago
Find the geometric mean of 16 and 36. Write your answer in simplest form. The geometric mean is​
Ede4ka [16]

Answer:

Step-by-step explanation:

the geo. mean is the nth root of the product of n numbers

Here there are two numbers; geo. mean is the square root of their product

g = √(16 * 36)

g = 4 * 6

g = 24

8 0
2 years ago
What is the slope of this line​
Rashid [163]

Answer:

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Step-by-step explanation:

Slope = Change over y (rise) over change over x (run)

Pick two dot points on the line

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Remember: Y runs vertically, X runs horizontally

Put the unit number that ran vertically on the top, then put the unit number that runs horizontally on the bottom

If needed simplify

The slope is 2/3

5 0
3 years ago
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