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ahrayia [7]
3 years ago
10

What are the first four terms of the sequence an=n2+4

Mathematics
1 answer:
Igoryamba3 years ago
7 0

Step-by-step explanation:

Given formula

an = n² + 4

Now the first four terms of the sequence are

a1 = 1² + 4 = 5

a2 = 2² + 4 = 4 + 4 = 8

a3 = 3² + 4 = 9 + 4 = 13

a4 = 4² + 4 = 16 + 4 = 20

The terms are

5 , 8 , 13 and 20.

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Scrat [10]

Volume of 1/4 gal

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7 0
3 years ago
The county fair charges $2.50 per ticket for the rides. Henry bought 15 tickets for the rides and spent a total of $55.50 at the
san4es73 [151]

Answer:

<em>(A)  $18</em>

<em>(B)   y=2.50x+18</em>

<em>(C)   Coefficient of x-term represents the cost for each ride ticket and constant term represents the cost of admission to the fair.</em>

Step-by-step explanation:

(A)

The county fair charges $2.50 per ticket for the rides and Henry bought 15 tickets for the rides.

So, the total cost of the 15 tickets will be:  (\$2.50*15)= \$37.50

He spent total $55.50 on ride tickets and fair admission.

So, the cost of admission to the fair will be:  (\$55.50-\$37.50)= \$18

(B)

If x represents the number of ride tickets and y represents the total cost, then the cost for x number of ride tickets is \$2.50x

So, the linear equation that can be used to determine the cost for anyone who pays for ride tickets and fair admission will be:   y= 2.50x+18

(C)

In the above linear equation, <u>coefficient of x-term is 2.50, which represents the cost for each ride ticket</u>.

And the <u>constant term is 18, which represents the cost of admission to the fair</u>.

4 0
3 years ago
Is -8-2(3+2n) +7 equivalent to -30-13n
JulsSmile [24]

Answer:

NO

-8-2(3+2n) +7 = -4n-7

-30-13n=

7 0
3 years ago
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