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almond37 [142]
3 years ago
9

Find 3rd and 5th form by using nth term formula tn=a+(n-1)d when tn=a+(n-1)d when a=2 and d=3.​

Mathematics
1 answer:
lawyer [7]3 years ago
8 0

Answer:

t3 = 8, t5 = 14

Step-by-step explanation:

t3 = 2 + (3-1) × 3

t3 = 2 + (2) × 3

t3 = 2 + 6

t3 = 8

t5 = 2 + (5-1) × 3

t5 = 2 + (4) × 3

t5 = 2 + 12

t5 = 14

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what is the recursive definition and explicit formula of the sequence 3, 5.5, 8, 10.5, 13, 15.5? I know the pattern is +2.5 ​
Delicious77 [7]

Answer:

a_{n} = a_{n-1} + 2.5

Step-by-step explanation:

This is an arithmetic sequence with common difference d = 2.5

The recursive formula allows any term in the sequence to be found by adding d to the previous term, thus

a_{n} = a_{n-1} + 2.5 ← recursive formula with a₁ = 3

5 0
4 years ago
Calculate the actual sales since the sales and sales tax were rung up together. Assume sales tax of 6% and total sales of $33,00
marta [7]

Answer:

the actual sales be $31,132

Step-by-step explanation:

The computation of the actual sales is as follows:

Let us suppose the actual sales be x

Now the sales tax be 0.06x

Now the total sales would be

x + 0.06x = $33,000

1.06x = $33,000

x = $33,000 ÷ 1.06

= $31,132

hence, the actual sales be $31,132

The same is to be considered by applying the above equation

8 0
3 years ago
1 ) Sara studied a map that showed the routes people followed to explore and settle in Kentucky during the 1700s. The scale on t
Mama L [17]
Answer: B) 100 mi I hope this helps you with your stuff ! bush’s
7 0
3 years ago
What is the measure of angle GXD?​
s2008m [1.1K]

Answer:

75 = GXD

Step-by-step explanation:

We know that CXE is a straight line

A straight line is 180 degrees

CXE = CXG + GXD +DXE

Substituting what we know

180 = 85+ GXD + 20

Combine like terms

180 = 105+GXD

Subtract 105 from each side

180-105 = 105-105 +GXD

75 = GXD

7 0
3 years ago
The surface area of this cone is 734.76 square meters. What is the slant height of this cone?
o-na [289]

Answer:

l= 234/r

Step-by-step explanation:

Given data

Surface area of cone=734.76 square meters.

The formula for the lateral surface area is

S.A=πrl

substitute the surface area

734.76 = 3.14*r*l

734.76/3.14=rl

234=rl

l= 234/r

Hence, with a value for r, the expression for the slant height l is given as

l= 234/r

5 0
3 years ago
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