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jekas [21]
3 years ago
14

If 5^3b-1 = 5^b-3 what is the value of b?

Mathematics
1 answer:
Tanzania [10]3 years ago
7 0

Answer:

  b = -1

Step-by-step explanation:

Your equation is ...

  (5^3)b -1 = 5^b -3

This is a mix of exponential and linear terms, and cannot be solved algebraically.

___

We suspect you might mean ...

  5^(3b -1) = 5^(b -3)

We can equate the exponents to find a value for b:

  3b -1 = b -3

  2b = -2 . . . . add 1-b to both sides

  b = -1 . . . . . . divide by 2

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2 years ago
Suppose a vine maple grows in height linearly. Four weeks after it is planted it stands 10.67 inches, and after seven weeks it i
dsp73

Answer:

Height (z)= 4+(5/3)(z)

Where z is the number of weeks

1). Slope = 4

2). Height= 5.67 inches

3).Height (z)= 4+(5/3)(z)

4).Height= 30.67 inches

Step-by-step explanation:

At week four

10.67= x+4y

Week 7

15.67= x+7y

Solving both equation simultaneously

3y= 5

Y= 5/3

15.67= x+7y

15.67= x+7(5/3)

15.67-35/3= x

15.67-11.67= x

4= x

The modeled equation is

Height (z)= 4+5/3(z)

Where z is the number of weeks

Slope of the function as compared to y= mx+c is 4

The first week of it's plantation

Height (z)= 4+5/3(z)

Height (1)= 4+5/3(1)

Height= 5.67 inches

After 16 weeks

Height (z)= 4+(5/3)(z)

Height (16)= 4+(5/3)(16)

Height= 30.67 inches

5 0
3 years ago
Given the function f(x) = 3|x - 2| + 6, for waht values of x is f(x) = 18?​
bixtya [17]

Answer:

x = 6, x =2

Step-by-step explanation:

To solve this problem, you need to plug in 18 where it says f(x)

For example: f(x) = 3 |x - 2| + 6

18 = 3|x - 2| + 6

Next, you need to get rid of the 6 in order to balance the equation which means to subtract 6 from both sides. For example : 18-6 = 3|x - 2| + 6 - 6

That leaves us with 12 = 3|x - 2|. You need to divide both sides by 3.

For example:  12÷3 = 3|x - 2| ÷ 3

Then, you get 4 = |x - 2|. In order to get rid of the absolute value signs, you need to make 2 equations out of it. On the first equation, the signs of the integers stay the same while the second equation, flip the signs. Keep the answer next to the equal sign, the same sign. For example:

4 = |x - 2|

1. 4 = x - 2 or x - 2 = 4

2. 4 = -x + 2 or -x + 2 = 4

number 1 answer: add 2 from both sides of the equation. For example:

x-2 + 2 = 4 + 2. Then get rid of the -2 + 2 of the equation. You are left with x = 6

Number 2 answer: To solve this equation for x, you need to subtract 2 from both sides of the equation. For example:  -x + 2-2 = 4-2. Then get rid of the 2-2 of the equation. You are left with -x = 2. The x variable can't be negative so you have to divide by -1 on both sides. The variable x equals to 1. For example: -x÷ -1 = 2÷-1. You are left with x = -2 as your answer. That's how you find your answer.

7 0
3 years ago
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