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cupoosta [38]
3 years ago
8

Please help!!!! i tried putting into a calculator but i am pretty sure i am incorrect :((

Mathematics
2 answers:
Serga [27]3 years ago
6 0

Answer:

hey

Step-by-step explanation:

formula used here

<h2>cos inverse (-theta)= π- cos inverse theta</h2>

see the attachment above

option c

dimulka [17.4K]3 years ago
4 0

Answer:

(2 - π) / 4

Step-by-step explanation:

cos⁻¹(- √3 /2)) = cos⁻¹ (-0.866) = 150°

sin 150° = 0.5 = 1/2

sin (- π /2) = -1

tan (sin (- π /2)) = tan (-1) = - 45° = - π / 4

1/2 + (- π /4) = (2 - π) / 4

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Answer:

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3 0
2 years ago
An experiment has a single factor with eight groups and five values in each group. a. How many degrees of freedom are there in d
pishuonlain [190]

Answer:

A) 7

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Step-by-step explanation:

Degree of freedom is a means of checking how many values that are free to vary, while using a statistical method.

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C - F = degree of freedom among the group variation

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b) The degree of freedom can be calculated, if the number of data; Therefore, number of data is;

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6 0
3 years ago
For friends share three apples equally what fraction of an apple does each friend get
Semmy [17]
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6 0
3 years ago
If you translate Point A ( 1 , 3 ) using the rule ( X , Y ) --&gt; ( X + 2 , Y + 5 ) then A' coordinates
andrew-mc [135]

Answer:

A' (3, 8 )

Step-by-step explanation:

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7 0
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HELP ASAP BEING TIMED! If Triangle J K L is congruent to Triangle B C A, which statement must be true?
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Answer:

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Step-by-step explanation:

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So the first side of BCA matches with JKL, the second side of BCA matches with JKL, the third side of BCA matches with JKL.

So first side:

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So second side:

CA is congruent  to KL

So third side:

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The third side is one of our answer choices.

That answer choice is C.

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2 years ago
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