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Dmitrij [34]
4 years ago
12

Need this for tomorrow thanks

Mathematics
1 answer:
Nastasia [14]4 years ago
6 0
#31
= - 8/-8
= 1

#32
= 28/7
= 4

#34 True
#35 True
#36 False
#37 False
#38 True
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Select the functions that have a value of -1. sin180° cos180° tan180° csc180° sec180° cot180°
kupik [55]

We have to break each degree in terms of 90

A) sin180^\circ=sin(90\times2+0)

Which is in third quadrant, therefore sine is negative hence

sin(90\times2+0)= -sin0 ^\circ = 0


B) cos180^\circ =cos(90\times2+0)

Which is in third quadrant, therefore cosine is negative hence

cos(90\times2+0)= -cos0^\circ  = -1


C) tan180^\circ=tan(90\times2+0)

Which is in third quadrant, therefore tangent is positive hence

tan(90\times2+0)= tan0^\circ  = 0


D) csc180^\circ=csc(90\times2+0)

Which is in third quadrant, therefore cosec is negative hence

cosec(90\times2+0)= -csc0^\circ  =not defined


E)sec180^\circ=sec(90\times2+0)

Which is in third quadrant, therefore secant is negative hence

sec(90\times2+0)= -sec0^\circ  = -1


F) cot180^\circ=cot(90\times2+0)

Which is in third quadrant, therefore tangent is positive hence

cot(90\times2+0)= cot0^\circ = not defined


Hence only cos 180^\circ and

sec180^\circ have value -1

Hope this will help

7 0
3 years ago
If I simplify the expression 4(x+3) to 4x+7 what properties did I use
natka813 [3]
You used Order of Operations. I hope this helped ^^
8 0
4 years ago
In order to solve the equation 9x = -3 (2+ 3y) for y a student simplifies the equation as shown
stepan [7]
The student should have distributed the -3 to both terms in the parenthesis in the first step. so it should’ve been 9x= -6-9y
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3 years ago
What are some letters with angles tjat correspond to a transversal.
Aliun [14]

DO you have choices?


3 0
4 years ago
What’s the fifth term of a sequence whose first term is 5 and whose common ratio is 3?
SSSSS [86.1K]

Answer:

405.

Step-by-step explanation:

This is a geometric sequence where the nth term = a1 r^(n -1).

Here a1 = 5 and r = 3 so

the fifth term a5 = 5(3)^(5-1)

= 5 * 81

= 405.

4 0
3 years ago
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