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Pie
3 years ago
9

The output of a function is 9 less than 3 times the input. Write an equation for the function and then find the input when the o

utput is –6.
Mathematics
1 answer:
labwork [276]3 years ago
3 0
Output is y.

so, y is -6.

-6 x 3 - 9
use PEMDAS to solve

-18 - 9

- 27

the input is -27
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3 0
3 years ago
Subtract 5x−25x−2 ​​from​ −3x+4−3x+4<br><br> −8x+6<br><br> −8x+2<br><br> 2x + 2<br><br> 8x−6
xxMikexx [17]
−3x + 4 - (<span>5x−2)
= </span>−3x + 4  - 5x + 2
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3 0
3 years ago
Read 2 more answers
If w is a string of english letters a–z (all uppercase for the purposes of this problem), let wr denote the reverse of w; (train
Dennis_Churaev [7]

Answer:

f(x)=\left \{\begin{array}{rl}26^{\frac{k}{2}}&\text{for k even}\\26^{\frac{k+1}{2}}&\text{for k odd}\end{array}\right.

Step-by-step explanation:

Half the length of the palindrome can be any possible sequence of the 26 available letters. The other half is constrained to be the reverse of the same sequence. For odd length sequences, the middle letter can be any of the 26.

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3 years ago
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8 0
3 years ago
Solve the equation
inysia [295]

Answer:

x ≈ 1.32, x ≈ - 5.32

Step-by-step explanation:

Given

x² + 4x - 7 = 0 ( add 7 to both sides )

x² + 4x = 7

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add ( half the coefficient of the x- term )² to both sides

x² + 2(2)x + 4 = 7 + 4

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Thus

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x = - 2 + \sqrt{11} ≈ 1.32 ( to 2 dec. places )

8 0
3 years ago
Read 2 more answers
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