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3 years ago

There are 50 books that are either red or blue. If 30 books are blue, what

Mathematics

1 answer:

RUDIKE [14]3 years ago

5 0

Answer:

The answer is 20%

Step-by-step explanation:

20% because if there are 50 altogether and there are only 30 blue books, then there 20 more books that are red that will make the count of 50

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3 years ago

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I need help with these two trigonometry problems.

Sloan [31]

Answer:

$B \approx 32.1\°; A \approx 39.0\°$

Step-by-step explanation:

Sine theorem: in any triangle, the ratio between a side and the sine of the opposite angle is constant

$\frac{sin\ \alpha}a = \frac{sin\ \beta}b =\frac{sin\ \gamma}c$

In our case, for the left triangle,

$\frac {sin\ 103\°}{11} =\frac{sin\ B} 6 \rightarrow sin\ B = \frac6{11} sin\ 103\°$

Time to grab a calculator and crunch numbers. Double check your calculator is in degrees and not in radians (plug in sin 30°, if you're getting 0.5 you're good) and you will get

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Same difference with the right triangle. With the same calculations

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2 years ago

(8x-16)/x^2-13x+22 simpifyed completly

Veronika [31]

Answer:

3. 8 over x minus 11 , x ≠ 11

Step-by-step explanation:

(8x-16)/(x²-13x+22) =
8(x-2)/(x² - 2x - 11x + 22) =
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3 years ago