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Luda [366]
3 years ago
15

Write an explicit formula for the sequence -13, -6, 1, 8, ...

Mathematics
2 answers:
Alecsey [184]3 years ago
8 0

The answer is:

<h3>c) a_{n}=-13+7(n-1)</h3>
djyliett [7]3 years ago
7 0

Answer:

c) an = -13+7(n-1)

Step-by-step explanation:

We can use the formula for arithmetic sequences

an =a1+d(n-1)

where a1 is the first term in the sequence

d is the common difference

and n is the term number

a1 is -13

d is found by taking the second term and subtracting the first term

d = -6--13

  = -6+13

d=7

We are adding 7 each time

Substituting what we know,

an = -13 + 7(n-1)

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A car's gas tank, which can hold 14 gallons of gas, contains 4 gallons of gas when the driver stops at a gas station to fill the
LUCKY_DIMON [66]

Answer:

<h2> 2minutes</h2>

Step-by-step explanation:

Since the expression for the amount of gas in the tank is given as

g = 5t + 4

we already know that g=14 which is the capacity of the tank

so let us put g=14 we have

14=5t+4

solving for t, which is the time taken to fill up the tank that already has 4 gal already we have

14=5t+4

14-4=5t

10=5t

t=10/5

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Therefore the time taken to fill the tank is 2minutes

7 0
3 years ago
Use the square to answer the question.
Studentka2010 [4]

Answer:

20 inches

Step-by-step explanation:

The correct answer is 20 because there is 4 sides and each side is worth of the length 5 so 5 times 4 - is what 20 . So the answer 20 is right . Hope this helps, you are welcome.

8 0
4 years ago
Write this number in standard form. 300+80+0.9+0.06+0.001
Lina20 [59]

Hey there! I'm happy to help!

First, let's add the hundreds and the tens.

300+80=380

We see that there is nothing in the ones place, so we keep our ones place 0 and we move onto adding the tenths.

380+0.9=380.9

We add the hundredths.

380.9+0.06=380.96

And finally, we add the thousandths.

380.96+0.001=380.961

Therefore, this number in standard form is 380.961.

Have a wonderful day! :D

5 0
3 years ago
Read 2 more answers
In the following questions, the polygons are similar. The area of one polygon is given, find the area of the other polygon.​
ivann1987 [24]
<h2>Answer:</h2>

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