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3 years ago

3/10=15/50=18/? Para ya pLis

Mathematics

1 answer:

anastassius [24]3 years ago

3 0

The answer is 18/10 .

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What is the common ratio between successive terms in the sequence?

ruslelena [56]

Answer:

1/3

Step-by-step explanation:

the formula of common ratio is given as

$r = \frac{a2}{a1}$

a1= 27 ,a2=9

r= 9/27

r= 1/3

3 0

3 years ago

Write the equation for a line perpendicular to a line passing through points (-1,2) and (1,-8)

soldi70 [24.7K]

Answer:

Step-by-step explanation:

Slope m = (-8-2)/(1+1)=-10/2 = -5

Perpendicular slope-1/m = -1/-5 = 1/5

Equation of a line with perpendicular slope is

y-y1=(-1/m)(x-x1)

y - 2 = (1/5)(x+1)

y =2 +(1/5)(x+1)

3 0

3 years ago

PLEASE HELP!!!!!!!! What is the 8th term of this sequence? 1,-1/2,1/4,-1/8

Tom [10]

This is a geometric sequence with first term 1 and common ratio -1/2. r=-1/2.

a(n) = a(1)*(r)^(n-1).

Check: If n=2 our formula must return -1/2. Does it?

a(2) = 1(-1/2)^(2-1) = (-1/2)^1 = - 1/2. Yes.
a(3) should be 1/4. Is it? a(3) = (-1/2)^(3-1) = 1/4 Yes.

Then a(8) = (-1/2)^(8-1) = (-1/2)^7 = -1 / 2^7 = -1/128 (answer)

7 0

3 years ago

Maritza remembers her PIN because it is between 1,000 and 1,500 and it is the product of two consecutive prime numbers. What is

valentina_108 [34]

Answer:

The PIN is 1147

Step-by-step explanation:

Prime numbers

These are integer numbers that only divide exactly by themselves and by 1. To find the first possible prime number between 1,000 and 1,500, calculate the square root of 1,000.

$\sqrt{1000}\approx 31.6$

Thus, the first prime to consider is 31. Write the consecutive primes from 31:

31 , 37 , 41 , 43

We can see the only two consecutive primes whose product lies in the given interval are 31 and 37. Thus, the PIN is 31*37=1147

4 0

3 years ago

Evaluate the expression when c=4 and y=-5. C-8y

cupoosta [38]

Refer to the attachment.

3 0

3 years ago

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