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satela [25.4K]
2 years ago
10

Please help ASAP Extra 500 points and brainliest

Mathematics
1 answer:
siniylev [52]2 years ago
4 0

Answer:

3

Step-by-step explanation:

Only answer that remotely gets close to the chart.

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Hi, the answer is K but can anyone show why
dlinn [17]

Let's do 51 and 52.

51. The contrapositive has the same truth value as the original statement. That's opposed to the converse, which may or may not be true independent of the original statement.

The contrapositive of IF P THEN Q is IF not Q THEN not P.  They're equivalent.  Here that's If the cat is not female then it is not tricolor.

Answer: C

52.  

(x^3)^{(4-b^2)}=1

x^{3(4-b^2)} = 1

For the statement to be true, the exponent must be zero:

3(4-b^2) = 0

b^2 = 4

b = \pm 2

Both positive 2 and negative 2 have a square of 4.

Answer: K

By the way, usually we assume 0^0=1 so the restriction that x \ne 0 isn't really necessary.  Think of the definition of a polynomial or the binomial expansion:

\displaystyle f(x)=\sum_{k=0}^n a_k x^k

\displaystyle(x+y)^n=\sum_{k=0}^n {n \choose k} x^{k}y^{n-k}

For these common equalities to work when x=0 we need to define 0^0=1


3 0
3 years ago
I need help with question number 2.. I have a test coming up and i’m really lost
Korvikt [17]

(9a+5b-7)+(4b-2)

Add the like terms

9a+9b-9

6 0
3 years ago
Which equation represents the pattern in the table below?
gizmo_the_mogwai [7]
The answer is C=S+4 Because both S and C have the same rate of change you only need to find the difference of the two values.
7 0
3 years ago
Read 2 more answers
What is the speed per hour?
kirza4 [7]

Answer:

I think the answer is 3

Step-by-step explanation:

sorry if im wrong

5 0
3 years ago
The number of students in a chess club decreased from 18 to 12. What is the percent decrease ? Round to the nearest percent
Elena L [17]

Answer:

33.3% decrease or 33%

Step-by-step explanation: 1/3 of 18 is 6. 1/3=33.3% it moved down by six people so 33% is your answer

8 0
3 years ago
Read 2 more answers
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