The sum of the first 16 terms for the given arithmetic sequence will be 328.
<h3>What is Arithmetic progression?</h3>
An arithmetic progression is when every two succeeding terms in a sequence have the same difference (AP).
For example ;
Natural number = 1,2,3,4,5,6,7,8...
Now it has the same difference between any two consecutive terms d =2-1 = 3-2.
The nth term of AP is given by,
= a + (n - 1) d
Given
a₄ = 7
So,
a + 3d = 7
And
a₇ = 16
So,
a + 6d = 16
By substituting equations 1 to 2
a = -2 and d = 3
The Sum of n terms is given by
= N/2[ 2a + (n - 1)d]
So,
= 16\2[2(-2) + ( 16 - 1)3]
= 328
Hence the sum of the first 16 terms will be 328.
For more about Arithmetic progression
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Answer: p=7
Step-by-step explanation: Pull out like factors :
-21 + 3p = 3 • (p - 7) Solve : p-7 = 0
Add 7 to both sides of the equation :
p = 7
Answer:
0.875
Step-by-step explanation:
7 divide by 8
<3
Red
Answer:
8ft 9 inch
Step-by-step explanation:
3 ft +5 ft +3 inch+6 inch
=8 ft+9 inch
Answer: The last two are right
Step-by-step explanation: 75x5= $375, 75x3=$225, 75x4=$300.
Add all the sums together and you will get the cost of 75 bouquets, which is $900. - NUMBER 3
5+3+4=12, 12x75=$900
Sorry if I'm wrong first time doing this.