Answers
Step-by-step explanation:
(i)
Using cos(a - b) = cos a cos b + sin a sin b
[tex]\frac{4}{5}[/tex] = cos a cos b + [tex]\frac{1}{5}[/tex]
cos a cos b = [tex]\frac{4}{5} -\frac{1}{5} = \frac{3}{5}[/tex]
(ii)
Using cos(a + b) = cos a cos b - sin a sin b
cos(a + b) = [tex]\frac{3}{5}-\frac{1}{5}=\frac{2}{5}[/tex]
(iii)
Using cot a = [tex]\frac{cos a}{sin a}[/tex]
[tex]=(\frac{cos A}{sin A} )(\frac{cos B}{sin B} )[/tex]
[tex]=\frac{cos A cos B}{sin A sin B}[/tex]
[tex]=\frac{\frac{3}{5} }{\frac{1}{5} }[/tex] [tex]=\frac{3}{5}[/tex] × [tex]5[/tex]
= 3
please give me a brainliest answer
Related Questions
Find the elapsed time of 8:45AM to 1:10 PM
Answers
Answer:
the answer would be 11 hours and 25 minutes
Step-by-step explanation:
Answer:
4.42 hours
The reason why is by adding, 8:45 can round up to 9, and 1:10 can round down to 1, this make it simpler. 8:45+15 1:10-10
9AM to 1PM
9AM+3=12PM, add 1 and you get 1 pm=4 hrs, add 15+10, and you get somewhere close to it.
What is the equation of the line that passes through the point (-6, -7) and has a slope of 0
Answers
Answer:
x = - 6
Step-by-step explanation:
A line with a slope of zero is a horizontal line parallel to the x- axis with equation
x = c ( where c is the value of the x- coordinates the line passes through )
The line passes through (- 6, - 7 ) with x- coordinate - 6 , then
x = - 6 ← equation of line
need help!! I would give you brainliest if it is correct <3
Answers
Answer: No
Step-by-step explanation:
can someone help me solve this Y= q-k/n for q
Answers
Answer:
q=y + K/n
Step-by-step explanation:
Please tell me the answer up to e no.
Answers
(I think you need a-e, if not let me know and I will edit accordingly)
a: Divide both sides by 4
cm -> 12:8
3:2
b: Convert and divide both sides by 3
cm -> 150:9
50:3
c: Convert and divide both sides by 20
cm -> 100:80
5:4
d: Convert and divide both sides by 4
months -> 4:12
1:3
e: Convert and divide both sides by 250
g -> 2000:250
8:1
Hope this helps, have a nice day :)
Find the difference in 14 5/10 - 12 9/10 please
Answers
Answer:
1 3/5
Step-by-step explanation:
14 5/10 - 12 9/10
I like to line them up vertically
14 5/10
- 12 9/10
-----------------
We need to borrow from the 14. 14 becomes 13 and the 1 becomes 10/10
13 10/10+5/10
- 12 9/10
-----------------
13 15/10
- 12 9/10
-----------------
1 6/10
Simplify
1 3/5
Complete this division sentence. 9988 ÷ 23 =
Answers
Answer:
434 R2
Step-by-step explanation:
Hope this helps
g(x) = 3x-1
f(x) = x + 5.
find g (f (4)
Answers
Answer:
g(x)=3
Step-by-step explanation:
Answer:
26
Step-by-step explanation:
g(x) = 3x-1
f(x)= x+5
g(f(4)
plug 4 into f
f(4)
now apply x+5
f(4)=4+5=9
plug 9 into g
g(9)
now apply 3x-1
g(9)=3(9)-1
3 ×9= 27
27-1=26
hence the answer is 26
(sorry if I'm wrong I just finished this topic myself)
which of these numbers has both 2 and 5 as factors? A. 205 B. 502 C. 250 D. 202
Answers
Answer:
10=20. divisible by 2 (2,5 = 10) both of the factor are prime
Step-by-step explanation:
BIG BRAIN
Asia is a chef in a restaurant. To prepare for dinner service, she chops
onions in
of an hour. What is Asia's rate of chopping in onions per hour?
Answers
Answer:
135 onions
Step-by-step explanation:
bc
7 1/2 = 15/2
15/2 x 3 = 45/2
45/2 = 22.5
bc its only 1 of 6 pieces, you have to multiply 22.5 by 6
22.6 x 6 = 135
Determine whether the graphs of the given equations are parallel, perpendicular, or neither.
y=−4
y=8
Choose the correct answer below.
A.
Parallel
B.
Neither
C.
Perpendicular
Answers
in the the picture below, EG has a length of (4x-8) and AB has a length of 24
A 5
B 2
C 12
D 8
Answers
Answer:
C
Step-by-step explanation:
1. Add 4x +8
the awswer would be 12x
2. subtract the 12x from the lenght which is 24
then your and will be 12
At a movie theater, there were 7 kids
for every 2 adults. If kids tickets cost $5
and adult tickets cost $8, how much
money did the theater make if there
were 54 people in the theater?
Answers
Answer:
$306
Step-by-step explanation:
Adult cost = no of adult × adult cost
no of adult = 12
adult tickets cost = $8
= 12 x $8
= $96
kids cost = no of kids x kids tickets cost
no of kids = 42
kids tickets cost = $5
= 42 x $5
= $210
total sales for the theatre =$96 +$210
= $306
Answer the following questions.
Questions
What is an amount between $2 and $10? (A) ____8______
What is an amount between $10 and $20? (B) ________10__
What is an amount greater than $50? (C) _____55_____
What is your name? (D) ___mikiaa____________
What is the name of an item that you will buy only once? (E) _____fish eggs____________
What is the name of an item that you will buy more than once? (F) ______snacks___________
Write an inequality of the form Ax + B ≤ C to represent the word problem using your answers for A, B, and C. Solve the inequality and show your work.
Graph the solution to your inequality on a number line or describe, in words, how to graph the inequality on a number line.
Explain what the solution means in the context of the word problem.
Answers
The question is an illustration of inequalities and mathematical operations
The amount between $2 and $10 is $8
The amount between $10 and $20 is $10
$100 is greater than $50
(a) Amount between $2 and $10.
The amount is calculated as:
Hence, the amount between $2 and $10 is $8
(b) Amount between $10 and $20.
The amount is calculated as:
Hence, the amount between $10 and $20 is $10
(c) Amount greater than $50.
An amount greater than $50 is an amount that have an higher value.
Take for instance: $100
$100 is greater than $50, because it has a higher value.
There is no enough information to solve the other questions
Read more about inequalities and mathematical operations at:
brainly.com/question/19003099
Figure D is the result of transforming Figure C.
1. What transformation would accomplish this?
Answers
I HAVE MORE PLS HELP IT’S DUE TOMORROW
Answers
Answer 1:
[tex]y = \frac{9}{5} - \frac{6x}{5}[/tex]
Answer 2:
[tex]y = 3 - \frac{8(x+7)}{7}[/tex]
Note:
User stated an explanation was not needed.
Given the following functions, find the indicated values,
f(x)= 1 - 5x
(a) f(-4) (b) f(0) (C) f(5)
(a) f( – 4)=0
Answers
Answer:
Riley restoration rotators
which of the following inequalities is graphed above?
Answers
Answer:
1st option
y=-3/8x+3
Please help me thank you
Answers
Answer:
C. The product of 12 and √17
Step-by-step explanation:
Because it gives a number that isn't a repeating or terminating decimal.
$200 is divided in the ratio 6: 4, What is the smaller part?
Answers
Answer:
Step-by-step explanation:
first put 6:4
6 is 3 by 2
4 is 2 by 2
the 2 in 4 and 6 is gone
so we will have in the 6 3 left and in the 4 2 left
so what is 3 by 2
can you plz help.me this to find plz plz
Answers
Sums are incorrect
[tex]\\ \sf\longmapsto 3a+b-(6b-2)[/tex]
[tex]\\ \sf\longmapsto 3a+b-6b+2[/tex]
[tex]\\ \sf\longmapsto 3a-5b+2[/tex]
Help me with this pls!!!
Answers
Answer:
B) $1.25
Step-by-step explanation:
1. First, let's take two points. In this case, we're going to take (4,5) and (8,10). We took 2 points, so we can verify the unit rate/cost per pound of pineapple.
2. To find the cost per pound of pineapple, we have to divide the cost (the y-coordinates) by the pound (x-coordinates)
5 ÷ 4 = 1.2510 ÷ 8 = 1.253. Now, since we can verify with 2 coordinates that the cost per pound is $1.25, the answer is B) $1.25.
Need Help Now Do not Wait need help with all will give 20 points!!!!!!!!!!!!!!
Answers
Step-by-step explanation:
the equation of the line simplify your answer type using integers are fraction indication points are the graph this is that what is the answer is
Please help, thank you!
Answers
order the numbers from least to greatest
Answers
Answer:
can you give me points ??
A city has 1,242 law enforcement officers in the police department. If the officers are divided equally into 18 groups, how many officers will be in each group?
Answers
Answer:
69
Step-by-step explanation:
1,242 ÷ 18 = 69
Since the problem says divided equally, you will need to divide the total number of officers into 18 groups.
-kiniwih426
Members per group:-
[tex]\\ \sf\longmapsto \dfrac{1242}{18}[/tex]
[tex]\\ \sf\longmapsto 69[/tex]
[tex]\bf \cfrac{5}{8}+\cfrac{3}{8}[/tex]
Answers
Answer:
The answer is 1
Step-by-step explanation:
Gabriella answered 72 questions correctly on her multiple choice history final and earned a grade of 36%. How many total questions were on the final exam?
Answers
Answer:
There were 200 Questions on the Final.
Step-by-step explanation:
a basketball player makes 140 out of 350 free throws. find the percent by using equivalent fractions
Answers
Answer:
140/350 = 14/35 = 2/5 = 40/100 = 40%
Step-by-step explanation:
I hope this helps
<3
which expressions represent 94 increased by twice a number
Answers
Answer:
2x+94
Step-by-step explanation:
because 2x means 2×x +94
x= unknown number
+=increase