Answer:
sin (- 135°)= – sin 135°= – sin (1 × 90°+ 45°) = – cos 45° = – 1√2
cos (- 135°)= cos 135°= cos (1 × 90°+ 45°) = – sin 45°= – 1√2
tan (- 135°) = – tan 135° = – tan ( 1 × 90° + 45°) = – (- cot 45°) = 1
csc (- 135°)= – csc 135°= – csc (1 × 90°+ 45°)= – sec 45° = – √2
sec (- 135°)= sec 135°= sec (1 × 90°+ 45°)= – csc 45°= – √2
cot (- 135°) = – cot 135° = – cot ( 1 × 90° + 45°) = – (-tan 45°) = 1
Step-by-step explanation:
hope this helps
supplementary angles add up to 180 degrees
x + y = 180
x - y = 92
---------------add
2x = 272
x = 272/2
x = 136 <=== this is one angle
x + y = 180
136 + y = 180
y = 180 - 136
y = 44 <=== this is ur other angle
Answer:
A) h(x)=9x-13
Step-by-step explanation:
f(x) = 2x - 1
g(x) = 7x -12
Add them together
f(x) = 2x - 1
g(x) = 7x -12
-------------------------
f(x)+g(x) = 9x-13
h(x) = 9x-13
Answer:
<em>Kaya found 25 shells on the beach yesterday.Today she found 25 more shell. She sorted all the shells into 5 pile.Which equation can be used to find how many shells are in each pile?
</em>
<em>A.s=(25+25)÷5
</em>
<em>B.s=25÷5
</em>
<em>C.s=(25+25)-5</em>
Equation A can be used to find the number of shells in each piles.
Step-by-step explanation:
Given:
Number of shells Kaya found day before = 
Number of shells she found today =
According to the question:
She sorted it into 
piles meaning we have to equally put them in each pile, for this we have to divide the total number of shells.
Let the number of shells in each pile = 
And total number of shells = 
So,
The number of shells in each pile.
⇒ 
⇒ 
⇒ 
From equation 
where, 
gives the same answer.
Then option A is the right choice.
