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disa [49]
4 years ago
13

Which is the prime factorization of 81

Mathematics
1 answer:
Ksenya-84 [330]4 years ago
7 0
Its not  one so 52 would be right

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Point R divides in the ratio 1 : 3. If the x-coordinate of R is -1 and the x-coordinate of P is -3, what is the x-coordinate of
grandymaker [24]
D -9 because it has a -3 and its going to be the same - sign 
7 0
3 years ago
Read 2 more answers
How many 4 digit multiples can not be divided by 5
Advocard [28]

Answer:

1800

Step-by-step explanation:

Let us solve this question by Modular Airthmatic.

Let the lowest 4 digit number be X.

X= 1 (mod 5)

X =2 (mod 5)

X=3 (mod 5)

X =4 (mod 5)

X=1+5 t where t is any integer.

1+5 t=2 (mod 5)

5 t=1 (mod 5 )

5 is the Modular Inverse of modulo 5

t=1 (mod 5)

t =1+5 u : u= any integer.

X becomes 1+ 5 (1+5u )=6+25 u

6+25u =3 (mod 5)

25 u= -3 (mod 5)=2 (mod 5)

25 is Modular Inverse of Modulo 5

u=2 (mod 5)

u =2+5 v : v= any integer.

X becomes 6 +25 (2+5 v)=56+125 v .

56 +125 v=4 (mod 5)

125 v=-52 (mod 5)=3 (mod 5)

125 is Modular Inverse of modulo 5

v = 3 (mod 5)

v =3 +5 w where w is any integer.

For lowest 4 digit number, take

w=200

X=1003 : Lowest 4 digit number.

Take w=201

X=208 : Next number.

For 4 digit largest number, take

w=1995

X= 9978 : Largest number.

No. of Numbers =(1995 - 200 )+1=1800 □Ans.

8 0
3 years ago
Read 2 more answers
What is the inverse of f(x) = (5x+2)^2 for x > -2/5
Levart [38]

Answer:

it should be -2/5 or \frac{\sqrt{x} }{5}

Step-by-step explanation:

4 0
3 years ago
47. What is the 12th term of the geometric sequence?
GrogVix [38]

Answer:

A

Step-by-step explanation:

The rule is 2x.

So 3,6,12,24,48,96,192,384,768,1536,3072,6144,12288,....

The question asked for the 12th term so 6144.

5 0
3 years ago
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For a one-tailed test with a = .05 and a sample of n = 9, the critical value for the t statistic is t = 1.860.
ahrayia [7]
I think its B. False if im wrong sorry hope this helped tho :p
6 0
3 years ago
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