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Phantasy [73]
3 years ago
9

Evaluate:cos 45°/sec 30°+cosec30°​

Mathematics
1 answer:
barxatty [35]3 years ago
3 0

Look at the trigonometry table for special angles.

From here, substitute the values in:

\frac{\sqrt{2} }{2} / \frac{2\sqrt{3} }{3}} + 2

Simplify:

\frac{3\sqrt{2} }{4\sqrt{3} } + 2

Rationalize:

\frac{\sqrt{6} }{4} +2

And this is your answer.

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What is less 2/10 or 10/6?
Ann [662]
This is obvious, 2/10 is less than one
10/6 is more than 1 so
2/10<1<10/6
therfor 2/10 is less

the legit way to do it is
convert bottom numbers to same number
number is 30

2/10 times 3/3=6/10
10/6 times 5/5=50/30

6/10<50/30
4 0
2 years ago
The farmer graphs a step function to model the situation. Which of the following describes the farmer’s graph for the step that
marshall27 [118]
Missing data:
Almond Prices
Number of Pounds

Cost (per pound)
up to 10
$20

more than 10, and up to 20
$15

more than 20, and up to 30
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more than 30
<span>$5
</span>
A) a horizontal line with an open circle at (20, 10) and a closed circle at (30, 10); $207.50
B) a horizontal line with a closed circle at (20, 10) and an open circle at (30, 10); $207.50
C) a horizontal line with an open circle at (21, 10) and a closed circle at (30, 10); $311.25
<span>D) a horizontal line with a closed circle at (21, 10) and an open circle at (30, 10); $311.25
</span>
20.75 pounds is in the more than 20, and up to 30 ; <span>$10 range.
y = 10(20.75)
y = 207.50

open circle means less than or greater than. close circle means "less than or equal to" or "greater than or equal to"

</span><span>My answer : A) a horizontal line with an open circle at (20, 10) and a closed circle at (30, 10); $207.50</span><span>

</span>
4 0
3 years ago
Which statement is true about the right angles ABC and DEF
cluponka [151]
The answer is the first one
7 0
3 years ago
A jar contains n nickels and d dimes. There is a total of 234 coins in the jar. The value of the coins is $16.10. How many nicke
Lostsunrise [7]
Your two equations for this question would be:

n + d = 234
5n +10d = 16.10

So with that you must take your two equations and make them equal to eachother.

Hope this helped :)
5 0
3 years ago
Read 2 more answers
a force of 50 lb act on an object at an angle of 45 degrees, a second force of 75 lb acts on the object at an angle of -30 degre
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5 0
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