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Valentin [98]
3 years ago
7

24. Which of the following trigonometric expressions is NOT equivalent?

Mathematics
1 answer:
vampirchik [111]3 years ago
8 0
Tan t /(sec t -cos t)= sin t/(cos t *(1/cos t -cos t))
=sin t/(cos t*(1-cos ²t)/cos t))
=sin t/sin² t=1/sin t [or=cosec t.]
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Martin has a vegetable garden that is 8 feet long and 5 feet wide. Next year, Martin wants to increase both the length and width
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Answer:

9.2 feet long and 5.75 feet wide

4 0
3 years ago
The ratio of the measures of the angles of a triangle is 3:4:8 what are the measures of the angles?
evablogger [386]

Answer:

36 and 48 and 96

Step-by-step explanation:

add 3+4+8=15

all of the angles in a triangle have to add up to 180

so 180÷15=12

now for this ratio, each part will equal 12

so we have to multiply each of the parts by 12

3×12=36

4×12=48

8×12=96

those are the measures of the angles

you can add them up again and see that they equal 180

you can try dividing and you will see that they also equal the ratio

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3 years ago
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1 year ago
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3 0
3 years ago
Read 2 more answers
two trains leave the station at the same time one heading east and the other west. the eastbound train travels 14 miles per hour
Xelga [282]
You should look to units of measure when setting up problems. when math is done correctly, the units cancel out just as numbers and variables do.

 (miles / hr) * hr = miles

Speed = (miles / hr)

So if the Train W is traveling at x miles/hr
Then Train E is traveling (x+14) miles/hr

The combined distance they two trains travel is 320 miles

2x + 2(x+14) = 320
2x + 2x + 28 = 320
4x + 28 = 320
4x = 292
x = 292/4
x = 73 miles/hr

remember we set x as the speed for Train W
so Train E is going 73 + 14 = 87 miles/hr
3 0
3 years ago
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