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3 years ago

What is the solution to the inequality below?

Mathematics

2 answers:

Annette [7]3 years ago

5 0

The answer is D. you would only flip the sign if you multiplied or divided by a negative

anastassius [24]3 years ago

3 0

B because a negative squared is always a positive and it has to be a negativ number less than -3 is less than 9 and if it is greater than 3 than it would make it untrue.

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Write an explicit formula for an, the nth term of the sequence 39, 43, 47, ....

Inga [223]

9514 1404 393

Answer:

an = 39 +4(n -1)

Step-by-step explanation:

The formula for the general term of an arithmetic sequence is ...

an = a1 +d(n -1)

Here, the sequence has first term a1 = 39 and common difference d = 43-39 = 4. So, the general term is ...

an = 39 +4(n -1)

3 0

3 years ago

Helppppp

adelina 88 [10]

Answer:

I don really know how to help the question isn´t stated properly

Step-by-step explanation:

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3 years ago

Read 2 more answers

If a person rows to his favorite fishing spot 14 miles downstream in the same amount of time that he rows 2 miles upstream and i

Maru [420]

We will use distance formula which states:

$d=r \times t$

where 'd' is the distance, 'r' is rate or speed and 't' is time taken.

So, $t=\frac{d}{r}$

Let 'u' be the speed of boat in still water.

A person rows 14 miles downstream to the fishing spot.

So, the speed of boat downstream = (u+6) mph

Time taken by boat to go downstream = $\frac{14}{u+6}$ hr

He rows 2 miles upstream from the fishing spot.

So, the speed of boat upstream = (u-6) mph

Time taken by boat to go upstream = $\frac{2}{u-6}$ hr

Since, The person took same amount of time in going downstream and then going upstream.

So, $\frac{14}{u+6}=\frac{2}{u-6}$

Cross multiplying, we get

$14 (u-6)= 2(u+6)$

$14u - 84 = 2u + 12$

$12u = 96$

u = 8

So, speed of boat in still water is 8mph.

Now, Time taken in going downstream = $\frac{14}{u+6}$

= $\frac{14}{8+6}$

= 1 hr

Now, Time taken in going upstream = $\frac{2}{u-6}$

= $\frac{2}{8-6}$

= 1 hr

So, total time taken to cover 16 miles is 2 hours.

8 0

3 years ago

A pet store has 9 puppies and 48 kittens what is the ratio of kittens to puppies

Ierofanga [76]

48:9

So, their's 48 kittens in 9 puppies.

48:9
96:18
144:27

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3 years ago

Read 2 more answers

I need help plz answer quickly Thank you

mash [69]

The total length is 456 cm.
132+94+108+w+w=456
334+2w=456
2w=122
w=61

4 0

4 years ago