3 years ago

Ratio of x and 2 is not greater than 14

Mathematics

1 answer:

allochka39001 [22]3 years ago

3 0

The ratio of x and 2=x:2
not greater than is <

So I'd say the answer would be x:2<14

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How do u write 2 and four sevenths as an improper fraction

Tcecarenko [31]

2 = 14/7
4/7 + 14/7 = 18/7

I think the answer is 18/7

7 0

3 years ago

Read 2 more answers

The first term in a geometric sequence is 54, and the 5th term is 2 / 3. Find an explicit form for the geometric sequence.

quester [9]

Answer: $ar^{n-1}=54(\dfrac{1}{3})^{n-1}$

Step-by-step explanation:

The nth term for a geometric sequence is given by :-

$a_n=ar^{n-1}$ (1)

We are given that The first term in a geometric sequence is 54. i.e. a=54

5th term= $\dfrac{2}{3}$ (2)

Put n=5 and a= 54 in (1), we get

$a_5=(54)r^{4}=$ (3)

From (2) and (3), we have

$\Rightarrow(54)r^{4}=\dfrac{2}{3}\\\\\Rightarrow r^4=\dfrac{2}{3}\times\dfrac{1}{54}=\dfrac{1}{3\times27}=\dfrac{1}{81}\\\\\Rightarrow\ r=(\dfrac{1}{81})^{\frac{1}{4}}=\dfrac{1}{3}$

Explicit form for the geometric sequence: $ar^{n-1}=54(\dfrac{1}{3})^{n-1}$

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4 years ago

An airplane begins its descent. After 4 minutes, it is 22,000

Blababa [14]

Answer:

2,000 feet/minute

Step-by-step explanation:

After four minutes the plane has descended to 22,000 feet, and after seven minutes it has descended to 16,000 feet, so the plane lost 6,000 feet of altitude in three minutes. Assuming it lowers at a constant rate of change, the rate of change of the airplane would be $\frac{6000}{3}$ or 2,000 feet/minute.