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lapo4ka [179]
1 year ago
14

using the substitution y = 3^x, show that the equation 9^x - 3^(x+1) + 2 can be written as (Y-1)(Y-2) = 0

Mathematics
1 answer:
hjlf1 year ago
8 0

Answer:

x=3, y=1

x=3, y=2

Hope this helps!

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Find the value of x.
vredina [299]

Answer:

50

Step-by-step explanation:

8 0
3 years ago
A manager is comparing the cost of buying ball caps with the team emblem from two different companies. Company X charges a $50 f
Nady [450]

Answer:

10 ball caps

Step-by-step explanation:

In this question, we are trying to know the number of caps the manger would buy that would equate the cost at both companies.

How do we get this?

Since we do not know the number of caps, let’s assign a variable. Let the number of caps that is required be x. Let’s now make some costings in terms of x. We proceed;

Company X charges $50 fee plus $7 per cap. Total amount company X will charge on x caps will be; $50 + $7(x) = $50 + $7x

Company Y will charge $30 plus $9 per cap. Total amount company Y will charge on x caps will be $30 + $9(x) = $30 + $9x

We are trying to look at the value of x that will make both costs equal. What we do is to equate both costs.

30 + 9x = 50 + 7x

We simply by taking like terms to the same sides

9x-7x = 50-30

2x = 20

x = 20/2 = 10

X = 10

So what this means is that manger has to buy 10 caps to have the same cost in both companies

3 0
3 years ago
( 2/3 x+2− 1/6 x+4)∙ 1/5 ÷ 1/5
UNO [17]
(2/3x + 2 - 1/6x + 4) • 1/5 ÷ 1/5
(1/2x + 6) • 1
1/2x + 6
5 0
3 years ago
Read 2 more answers
Graph y = -2x + 5. ​
antoniya [11.8K]

Answer:

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
I need help asap!!!
gizmo_the_mogwai [7]

Answer:

x = 9

Step-by-step explanation:

-5(1 + 1x) = -50

-5 + -5x = -50

-5 + -5x + 5 = -5x

-50 + 5 = -45

-5x = -45

-5x / -5 = x

-45 / -5 = 9

x = 9

5 0
2 years ago
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