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2 years ago

What is the common difference for the arithmetic sequence? –5, –1, 3, 7, ...

Mathematics

1 answer:

Kobotan [32]2 years ago

7 0

D=difference=an-an-1

d=a₂-a₁=-1-(-5)=-1+5=4

d=4

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Suppose that a person 6 feet tall weighs 180 pounds and another person is 4 feet tall

zheka24 [161]

Linear fit : 50 x-120 x = 5.5 50 * 5.5 - 120 = = 155 Weight = 155

3 0

2 years ago

Joe made a scale drawing of the community pool in his town. the pool has a perimeter of 77 meters, what is the length and width

viva [34]

Answer:

The length of the pool is 28 meters and the width of the pool is 10.5 meters.

Step-by-step explanation:

In the scale drawing of Joe, the community pool has (length : width) = 8 : 3

Let the actual length of the pool is 8x meters and the actual width is 3x meters.

Now, given that the actual pool has a perimeter of 77 meters.

So, 2(8x + 3x) = 77

⇒ 22x = 77

⇒ x = 3.5

So, the length of the pool is 8x = 8(3.5) = 28 meters and the width of the pool is 3x = 3(3.5) = 10.5 meters. (Answer)

8 0

2 years ago

Write the divisor of 4/12=1/3

mars1129 [50]

4/12=3/9=2/6=1/3 should be the right answer. (You have to reduce.)

4 0

2 years ago

Workers have been down the street installing two blinking red lights in front of the fire station. The two lights are always tur

daser333 [38]

Answer:

After 88 seconds, they will blink together.

Step-by-step explanation:

Time after which the first light blinks = 8 seconds

Time after which the second light blinks = 22 seconds

Initially, both the lights blink together.

To find:

The time at which they will blink together again.

Solution:

Let us have a look at the time after which each light will blink.

First light will blink after:

8 s, 16 s, 24 s, 32 s, 40 s, 48 s, 56 s, 64 s, 72 s, 80 s, 88 s, 96 s, 104 s, ......

Second light will blink after:

22 s, 44 s, 66 s, 88 s, 110 s, .....

It can be seen that common time is 88 second, at which the both will blink together.

So, the answer is 88 s.

This answer can also be computed by taking the LCM (Least Common Multiple) of both the numbers i.e. 8 and 22.

Using the factorization method:

$8=\underline{2}\times 2\times 2$

$22=\underline{2}\times 11$

Common is 2.

Therefore the LCM will be:

$2\times 2\times2\times 11 = \bold{88}$

So, the answer is 88 s.

5 0

2 years ago

What is the function that the equation F(x)=3^x represents

Roman55 [17]

Thats an exponential function The variable x is an exponent so that is why its called exponential.

8 0

2 years ago