2 years ago

If a >b, then A must be positive number.

Mathematics

1 answer:

olga nikolaevna [1]2 years ago

7 0

Step-by-step explanation:

NO,IT DEPENDS UPON SITUATIONS

IF B IS -5 THEN A CAN BE -2,-4,-3 OR 1 ,2,3,4,......

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The question is:

saul85 [17]

$f(x) = \sqrt{x+1} \\ y = \sqrt{x+1} \ or \ y^2 = x+1 \ or \ x = y^2 - 1 \\ Therefore, \ f^{-1}(x)=x^2 - 1$

$(fof^{-1})(a) = f(f^{-1}(a))=f(a^2-1) \\ =\sqrt{a^2-1+1}=\sqrt{a^2}=a \\ \\ (f^{-1}of)(a)=f^{-1}(f(a))=f^{-1}(\sqrt{a+1})= \\ (\sqrt{a+1})^2-1 = a+1-1 = a$

Therefore, $(fof^{-1})(a) = (f^{-1}of)(a) = a$

8 0

2 years ago

How many leaves on a tree diagram are needed to represent all possible combinations tossing a coin 3 times?

Anika [276]

N = 3 is the number of times the coin is tossed. Since there are 2 outcomes per toss, this means that there are 2^n = 2^3 = 2*2*2 = 8 outcomes total. Therefore, there are 8 leaves total.

If we make
H = heads
T = tails

Then here are the 8 outcomes in the sample space
HHH
HHT
HTH
THH
HTT
THT
TTH
TTT

8 0

3 years ago

Read 2 more answers

Stephen Curry makes 43.5% of his 3 point shots. In a typical season, Curry takes around 700 3 point shots. Assume Curry takes 70

Paladinen [302]

Answer:

a. Find the probability that Curry makes less than 300 3 point shots.

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2 years ago

Given: 2x + 30 = -4(5x -2);<br> Prove: x = -1

Lady_Fox [76]

2x + 30 = -20x + 8
2x + 20x = 8 - 30
22x = -22
x = 1