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mel-nik [20]
3 years ago
15

2) Write the first five terms of the arithmetic sequence, if: a3=8 a11=32

Mathematics
1 answer:
padilas [110]3 years ago
5 0

Answer:

a

Step-by-step explanation:

the five terms for arithmetic is that

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A roofing job take 6 workers 8 hours to complete. If the number of workers is inversely proportional to the time a job takes to
Wewaii [24]

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7 0
3 years ago
Need help with gem trip sequences <br> 36 points!!!!!!!!!
coldgirl [10]

Answer:

a_{n} = 8(-3)^{n-1}

Step-by-step explanation:

The n th term of a geometric sequence is

a_{n} = a(r)^{n-1}

where a is the first term and r the common ratio

Here a = 8 and r = - 24 ÷ 8 = - 3, thus

a_{n} = 8(-3)^{n-1}

3 0
3 years ago
Define the value of the expression 3^2 x 3^{-5}
Tanya [424]

Answer:

Between 0 and 1

Step-by-step explanation:

The given expresion is

{3}^{2} \times  {3}^{ - 5}

Recall that:

{a}^{m}  \times  {a}^{n}  =  {a}^{m + n}

We apply this property of exponents to get;

{3}^{2}  \times  {3}^{ - 5}  =  {3}^{2 +  - 5}  =  {3}^{ - 3}

We rewrite to obtain a positive index as:

{3}^{2}  \times  {3}^{ - 5}  =  \frac{1}{ {3}^{3} }  =  \frac{1}{27}

Therefore the value of the expression is between 0 and 1.

8 0
2 years ago
Find the solution of the system of equations.<br><br> -x+2y=-15<br> 8x-2y=-20
Grace [21]

Answer:

the answer is (-5,-10)

hope this helps :)

8 0
2 years ago
How are the solutions to the following two equations related m+5=72 <br> m+72=5
EastWind [94]
To see how they are related, let us solve the two equations.

FIRST EQUATION

m + 5 = 72

\rightarrow \: m = 72 - 5

\rightarrow \: m = 67

SECOND EQUATION

m + 72 = 5

\rightarrow \: m = 5 - 72

\rightarrow \: m = - 67

Hence the solutions to the two equations are ADDITIVE INVERSE of each other.
6 0
3 years ago
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