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inna [77]
3 years ago
11

Find the 25th term of the sequence -1, 2, 5, 8​

Mathematics
1 answer:
Scilla [17]3 years ago
8 0

Answer:

71

Step-by-step explanation:

This is an arithmetic sequence with n th term

a_{n} = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

here d = 2 - (- 1) = 5 - 2 = 8 - 5 = 3 and a₁ = - 1, so

a_{25} = - 1 + (24 × 3) = - 1 + 72 = 71

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Nataly_w [17]

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8 0
3 years ago
Read 2 more answers
Can someone please help me?
Katyanochek1 [597]
The matrix represents the system:

-3x+5y=15

2x+3y=-10, which is choice c. 


We can see it more clearly from the way we multiply matrices, as follows:

\[
  \left[ {\begin{array}{cc}
   -3 & 5 \\
    \ 2  & 3 \\
  \end{array} } \right]
\] \cdot  \[
  \left[ {\begin{array}{c}
   x \\
    y \\
  \end{array} } \right]
\]= \left[ {\begin{array}{c}
   -3\cdot x+5\cdot y \\
    2\cdot x+3\cdot y \\
  \end{array} } \right]
\]= \[ \left[ {\begin{array}{c} 15 \\ -10 \\ \end{array} } \right] \]

Answer: C
7 0
3 years ago
Find the missing values.<br> 15. F=<br> 16. E=<br> 17. D=<br> 1319<br> d<br> e
svetlana [45]
15.F=49
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5 0
3 years ago
What is -(x - 8) simplified?
expeople1 [14]
You really can’t simply it but if u use disruptive property it would be -x - -8
5 0
3 years ago
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