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Nataly [62]
3 years ago
11

2^x + 3^y = 92^x+1 - 3^y+1=8find x and y​

Mathematics
1 answer:
Taya2010 [7]3 years ago
8 0

Suppose :

2^x = t ..**&**.. 3^y = u

_____________________________

t + u = 9 × 3 3t + 3u = 27

=====》

2t - 3u = 8 2t - 3u = 8

+ __________

5t = 35

5 × t = 5 × 7

t = 7

&

u = 2

________________________________

Thus :

2^x = 7 ===》 x = Log _ 2 { 7 }

3^y = 2 ===》 y = Log _ 3 { 2 }

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Answer:

The zeros are -1, 0, and 2

Step-by-step explanation:

The zeroes of f are the points where the graph f crosses the x-axis, which occur at x = -2, x = 0, x = 2.

Have a great day :)

3 0
3 years ago
Read 2 more answers
You and your friend are playing a game. The two of you will continue to toss a coin until the sequence HH or TH shows up. If HH
miskamm [114]

Answer:

The probability of friend A winning with HH = 1/4.

Step-by-step explanation:

The probability of an event, A is P(A) given by the relationship;

P(A) = (The number of required outcome)/(The number of possible outcomes)

The parameters given are;

The condition of friend A winning = Coin toss sequence HH shows up

The condition of friend B winning = Coin toss sequence TH shows up

The number of possible outcomes = TT, TH, HH, HT = 4

(TH and HT are taken as different for the game to be fair)

The number of required outcome = HH = 1

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The probability of friend A winning with HH = 1/4.

5 0
3 years ago
I don't understand linear functions, thanks!
ANEK [815]

Answer:

I think the answer is Y=-1 and x=1

5 0
3 years ago
Work out the perimeter of a semicircle with radius 3 cm.<br>Give your answer in terms .
Klio2033 [76]
Answer:
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Explanation:
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perimeter = πr + 2r
where:
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r is the radius =  3 cm

Substitute with the givens in the above formula to get the perimeter as follows:
perimeter = π(3) + 2(3)
perimeter = 3π + 6
perimeter = 3(3.14) + 6
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Hope this helps :)
5 0
3 years ago
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the answer will be around  53.398

8 0
3 years ago
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