All categories

3 years ago

27 to the power of 3x=81

Mathematics

1 answer:

hoa [83]3 years ago

8 0

Answer:

x=4/9

Step-by-step explanation:

27 ^(3x) = 81

Replace 27 with 3^3 and 81 with 3^4

3^3^(3x) = 3^4

We know that a^b^c = a^(b*c)

3^(9x) = 3^4

Since the bases are the same, the exponents are the same

9x =4

Divide each side by 9

9x/9 = 4/9

x = 4/9

You might be interested in

Sketch the curve of y=x² with conclusion.

AveGali [126]

Step-by-step explanation:

I have attached pictures. Hopefully they are visible.

8 0

2 years ago

Use the net to find the surface area of the square pyramid. A) 210 in2 B) 320 in2 C) 420 in2 D) 450 in2

Aleksandr [31]

Answer:

D. 420

The area of a triangle is

$\frac{1}{2} bh$

half of(base× height)

10×16= 160

160÷2=80

That is the surface area of ONE triangle.

multiply 80 by 4 to get 320

then find the surface area of the square by doing length×width to get 100

Finally add them together

320+100=420

4 0

2 years ago

PLEASE HELP I WILL MARK BRAINLIEST

Gnom [1K]

Answer:

is C 4,816

Step-by-step explanation:

four thousand is 4,000 eight hundred is 800 sixteen 16

4000+800+16=4,816

3 0

2 years ago

You are creating identical coupon booklets to sell for a fundraiser. You have 32 dry cleaning coupons 80 coupons for a local res

marishachu [46]

No. It means that you should find a integer to divide 32 47 80 , and the equals must be integer also. But the 3 numbers have no common factor

3 0

3 years ago

How much would you need to deposit in an account now in order to have $5000 in the account in 10 years? Assume the account earns

Blababa [14]

Answer:

$12500

Step-by-step explanation:

use si formula

SI=ptr/100

si=5000

t=10

r=4

6 0

3 years ago