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9966 [12]
3 years ago
15

Suppose 52% of students chose to study French their junior year, and that meant that there were 312 such students. How many stud

ents chose not to take French their junior year?
Mathematics
1 answer:
Charra [1.4K]3 years ago
5 0

Answer:

  288

Step-by-step explanation:

If 52% studied French, then 48% didn't. The ratio of those who didn't to those who did is ...

  (didn't study French)/312 = 48%/52% = 12/13

Then the number that didn't study French is ...

  (didn't study French) = 312 × 12/13 = 288 . . . . . . multiply above by 312

288 students chose not to take French their Junior year.

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Factor each trinomial. Then match the polynomial (term) on the left with its factored form (definition) on the right.
meriva
X² - 8x - 20 factors to give option
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x² + 8x - 20 factors to give option
A) (x - 2)(x + 10)
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and x² - 9x - 20 is option D) Prime.

I hope this helps!
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6 0
3 years ago
If f(x) and r1(x) are inverse functions of each other and f(x)=2x+5 , what is f^-1(8) ?
GenaCL600 [577]

Answer:

3/2

Step-by-step explanation:

Given y = 2x + 5, let's rewrite the equation in terms of x;

y = 2x + 5 => Bring 5 to the other side

2x = y - 5 => Divide either side by 2

x = (y - 5)/2

If we want to take the inverse, simply swap the variable's positions...

We have y = (x - 5)/2

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3 years ago
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