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ycow [4]
2 years ago
14

3x-2y=12

Mathematics
1 answer:
maksim [4K]2 years ago
8 0
Answer: NO SOLUTION!!
(WORK SHOWN BELOW)

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Find the first five terms of the sequence given the following recursive formula:
forsale [732]

Answer:

The first five terms are;

-3,-7,11,-29,69

Step-by-step explanation:

The recursive definition of the sequence is

a_1=-3,, a_2=-7 and a_n=a_{n-2}-2a_{n-1}.

When n=3, we obtain;

a_3=a_{3-2}-2a_{3-1}.

\implies a_3=a_{1}-2a_{2}.

\implies a_3=-3-2(-7).

\implies a_3=11.

When n=4

\implies a_4=a_{2}-2a_{3}.

\implies a_4=-7-2(11)=-29.

When n=5

\implies a_5=a_{3}-2a_{4}.

\implies a_4=11-2(-29)=69.

Therefore the first five terms are;

-3,-7,11,-29,69

5 0
3 years ago
Rosa has 123 inches of red ribbon. She has 148 inches of blue ribbon. The letter i stands for how many more inches of blue ribbo
siniylev [52]
I = 148 - 123


I = 25 inches
6 0
3 years ago
If the half-life of a radioactive substance is 2,800 years, then at what rate is it decaying?
vlada-n [284]

Answer:

0.0001075

Step-by-step explanation:

The relation between halflife and rate at which it is decaying is given by

t_{\frac{1}{2} } =\dfrac{log2}{rate}

now in the above problem halflife is given as 2800 years substituting in the above equation we get the value of rate at which it is decaying to be rate=0.0001075.

6 0
3 years ago
How to you get the mean in math
nydimaria [60]
The "mean" is the "average" you're used to, where you add up all the numbers and then divide by the number of numbers.
5 0
3 years ago
Thomas walks his dog for 25 minutes today, 5 more minutes than yesterday. Express as a percent his walking time today compared t
Irina-Kira [14]

Answer:

A: 125%

Step-by-step explanation:

if thomas had walked his dog for 25 minutes today, and he walked an extra 5 minutes compared to yesterday, then that would mean he walked his dog 25% more than yesterday (yesterday being 100%) so therefore it would be 125%

5 0
3 years ago
Read 2 more answers
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