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garri49 [273]
3 years ago
12

Y=2x+9 what the answer

Mathematics
1 answer:
tekilochka [14]3 years ago
8 0

Answer:

x=Y/2−9/2

Step-by-step explanation:

please mark brainliest :)

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Find the 38th term of a sequence where the 24th term is −3 and the common difference is 12.
Olenka [21]

Answer:

165 i think

Step-by-step explanation:

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Pedro charged $933 to his credit card. Even after the cost of his next
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3 years ago
Last week, Sarah had exams in Math, Spanish, and English. On the Math exam, the mean was µ = 30 with s = 5, and Sarah had a scor
serious [3.7K]

Answer:

Sara expect the better grade for Math class.

Step-by-step explanation:  

Consider the provided information.

On the Math exam, the mean was µ = 30 with s = 5, and Sarah had a score of X = 45.

Z score for Math: Z=\frac{x-\mu}{s}

Z=\frac{45-30}{5}

Z=\frac{15}{5}

Z=3

On the Spanish exam, the mean was µ = 60 with s = 8 and Sarah had a score of X = 68.

Z score for Spanish: Z=\frac{x-\mu}{s}

Z=\frac{68-60}{8}

Z=\frac{8}{8}

Z=1

On the English exam, the mean was µ = 70 with s = 8 and Sarah had a score of X = 70.

Z score for English: Z=\frac{x-\mu}{s}

Z=\frac{70-70}{8}

Z=0

We can observe that Z score of Math is greater than Spanish and English.

Which means that Sarah did the best in her Math exam.

Hence, Sara expect the better grade for Math class.

8 0
3 years ago
Pre Calc work, I need help with writing piece wise functions from graphs. Can anyone help? Giving brainliest
Andrei [34K]

The definition of the piece-wise function is:

  • f(x) = 2.5x + 1, -2 \leq x \leq 2
  • f(x) = -3, 2 < x < 6.

<h3>What is a piece-wise function?</h3>

A piece-wise function is a function that has different definitions, depending on the input.

In this problem, for inputs between -2 and 2, the function is a line that goes through (-2,-4) and (2,6). The slope is:

m = (6 - (-4))/(2 - (-2)) = 2.5.

The y-intercept is of b = 1, hence the rule is:

f(x) = 2.5x + 1, -2 \leq x \leq 2

For x greater than 2 and less than 6, the function is constant at -3, hence the rule is:

f(x) = -3, 2 < x < 6.

More can be learned about piece-wise functions at brainly.com/question/27262465

#SPJ1

5 0
2 years ago
Reduce 30/36 to its most simple form
Novay_Z [31]
5/6 is the answer. Hope this helps you!
3 0
3 years ago
Read 2 more answers
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