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3 years ago

If n is the least of two consecutive odd integers, which of the following represents the sum of the two integers?

1 answer:

8 0

Let the first odd integer = n
∴ The second consecutive odd integer = n+2

∴ The sum of the two integers = (n) + (n+2)
= 2n + 2

 The correct choice is option (D)
 D) 2n + 2

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What is the value of the fourth term in a geometric sequence for which a1 = 30 and r = 1/2?

Pani-rosa [81]

Answer: The required fourth term of the geometric sequence is $\dfrac{10}{9}.$

Step-by-step explanation: We are given to find the value of the fourth term in a geometric sequence with first term and common ratio as follows :

$a(1)=30,~~~~~r=\dfrac{1}{2}.$

We know that

the n-th term of a geometric sequence with first term a1 and common ratio r given by

$a(n)=a(1)r^{n-1}.$

Therefore, the fourth term of the given geometric sequence will be

$a(4)=a(1)r^{4-1}=30\times r^3=30\times\left(\dfrac{1}{3}\right)^3=\dfrac{30}{27}=\dfrac{10}{9}.$

Thus, the required fourth term of the geometric sequence is $\dfrac{10}{9}.$

7 0

2 years ago

Read 2 more answers

What is the approximate length of the radius of a circle with a circumference of 63 inches?

Sergeeva-Olga [200]

Answer: 63/2π

Step-by-step explanation: C=πd

63=πd

D=63/π

r=1/2d

1/2×63/π=63/2π

5 0

3 years ago

In a lab experiment, 3100 bacteria are placed in a petri dish. The conditions are such that the number of bacteria is able to do

timama [110]

2,862 bacteria

6,200/26 = x/12
For one hour, there are 238.461538. Multiply that by 12 and get 2861.53846. Round to the nearest whole number and your answer is 2,862 bacteria.

4 0

2 years ago

URGENT,!?? To decrease an amount by 4% what single multiplier would you use?

Olegator [25]

We would use for the first part 0.96
Second part we would multiply 500 by 1.046
Multiplying 6 kilometers per hours by 2 1/3, we would get 12 + 2 = 14 km

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2 years ago

What is the solution to x=1/2y-3 and y=2x+6

Tom [10]

Answer:

infinite solutions

Step-by-step explanation:

Multiply the first equation by 2 so we don't have fractions.

x = 1/2y - 3 becomes 2x = y - 6

Now substitute the second equation into the y-value of the new equation

2x = (2x + 6) - 6

2x = 2x

x can equal anything. this means there are infinite solutions

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3 years ago