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Snezhnost [94]
3 years ago
11

Solve the exponential equation: 2^3x+1 = 128

Mathematics
1 answer:
dsp733 years ago
3 0

Answer:

So x=2.32956156226

Step-by-step explanation:

First subtract 1 on both sides

2^3x=127

Now you can rewrite this as

(2^3)^x

As it still equals the same thing

Now 2^3 is 8

So the equation is now

8^x=127

So we use log formula

log8 127=x

So how many times do we have to multiply 8 by itself to get 127?

The answer is: 2.32956156226

Hope this helps!

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What do you mean? i don’t quite get this question
7 0
3 years ago
What is bigger 9/2 or 8/3?
Sliva [168]
9/2 would be bigger than other 8/3

'cause we can either calculate it or can predict by the difference between numerator & denominator.

Hope it helped!
7 0
4 years ago
Floyd is an aspiring music artist. He has a record contract that pays him a base rate of $200 a month and an additional $12 for
Serggg [28]
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Thank you hope this helps
4 0
3 years ago
Given: -1/2x &gt; 6.<br><br>Choose the solution set. 
elena55 [62]

Answer:

x <-12

Step-by-step explanation:

-1/2x > 6

Multiply each side by-2.  This will flip the inequality

-2 *-1/2x < 6*-2

x <-12

8 0
3 years ago
Two terms of an arithmetic sequence are a10=16 and a35=66 find the sum of the first 75 terms
andrew11 [14]

The sum of the first 75 terms of the arithmetic sequence that has 10th term as 16 and the 35th term as 66 is 5400.  

<h3>How to find the sum of terms using Arithmetic sequence formula</h3>

aₙ = a + (n - 1)d

where

  • a = first term
  • d = common difference
  • n = number of terms

Therefore, let's find a and d

a₁₀ = a + (10 - 1)d

a₃₅ = a + (35 - 1)d

Hence,

16 = a + 9d

66 = a + 34d

25d = 50

d = 50 / 25

d = 2

16 - 9(2) = a

a = 16 - 18

a  = -2

Therefore, let's find the sum of 75 terms of the arithmetic sequence

Sₙ = n / 2 (2a + (n - 1)d)

S₇₅ = 75 / 2 (2(-2) + (75 - 1)2)

S₇₅ = 37.5 (-4 + 148)

S₇₅ = 37.5(144)

S₇₅ = 5400

learn more on arithmetic sequence here: brainly.com/question/1687271

4 0
3 years ago
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