can some one help me with this trigonometry problem?
CotA + cot(60+A)-cot(60-A)=3cot3A
how can i prove this ?
Answers
Step-by-step explanation:
Hope it will help you ❤❤
Related Questions
What do 5a represent in f(x)=5ax
Answers
Answer:
[tex]y = mx + c \\ f(x) = 5ax[/tex]
By comparing both the equation we get that,
5a represent a slope in f(x)Select all the expressions that simplify to a positive number.
13 – 25
–10.5 + 11
(–30) ÷ (–10)
4.25 ⋅ (–1.25)
–10 + (–18)
Answers
Answer:
C is the awser.
Step-by-step explanation:
-30 / (-10)= 3
two of the same sign results in the opiste sign.
Which expression means the same as the phrase below?
Subtract 3 from the product of 8 and 5
A (5 x 8) + 3
B (5 x 8) - 3
5 x (8 – 3)
D5 x (8 + 3)
Answers
A is adding 3, not subtracting.
C is basically 5 squared.
D is 5 lots of 11.
Look at the line segment that is graphed below.
What is the length of PQ¯¯¯¯¯, rounded to the nearest tenth?
P= -6,2 Q= 4,-7
Answers
Answer:
11.2
Step-by-step explanation:
help please and thank you :)
Answers
9514 1404 393
Answer:
(b) see below
Step-by-step explanation:
These tables all have x-values that are consecutive integers, including 0.
The equation has an x-coefficient of -1/2, so as x increases by 1, y should decrease by 1/2 from one row of the table to the next. This is only the case for table B.
__
As another check, the y-value for x=0 is the constant in the equation, -1. That is not the case for table C, further evidence that C is incorrect.
if it was 10:00 and i did somthing for 180 mins (45mins X 4) what time would it be
Answers
Answer:
13:00 or 1:00
Step-by-step explanation:
Good Night
Sweet Dream
What are the first 6 multiples of 3?
Answers
Answer:
1 and 3 so 3
Step-by-step explanation:
6:1,2,3,6
3:1,3
Help a brother out!!
Which of the following are characteristics of the parent function represented
by the equation F(x) =x^3?
As
Select all that apply.
A. It is a parabola.
B. It passes through quadrants I and III.
C. It has a domain and range of all real numbers.
D. It goes through the origin.
E. It is symmetric about the x-axis.
Answers
Answer:
B,D,E for sure
Step-by-step explanation:
Not A because a parabola looks different. Not sure about C.
Answer:
Step-by-step explanation:
Use the distributive property to write the next step in simplifying the numerical expression
4(8+9)
ОА. 4•8+9
ОB. (4+B)•(4+9)
ОC. 4+8•4+9
OD.4•8+4•9
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hope this helps:)
A shipping container will be used to transport several 80-kilogram crates across the country by rail. The greatest weight that can be loaded into the container is 25000 kilograms. Other shipments weighing 9200 kilograms have already been loaded into the container. Which inequality can be used to determine cc, the greatest number of 80-kilogram crates that can be loaded onto the shipping container?
Answers
Answer:
197
Step-by-step explanation:
Given that :
Weight of crate = 80kg
Greatest weight container can load = 25000 kg
Weight of other shipments on container = 9200kg
Greateat Number of 80kg crates = c
Weight of other shipment + (weight of crate * number of crates) ≤ greatest weight of container
9200 + (80 * c) ≤ 25000
9200 + 80c ≤ 25000
80c ≤ 25000 - 9200
80c ≤ 15800
c ≤ 15800 / 80
c ≤ 197.5
Hence, maximum number of 80kg crate is 197
The inequality which can be used to determine c will be "[tex]9200 + 80c \leq 25000[/tex]". A complete solution is below.
Given values are:
Crates' weight,
80kgGreatest weight container,
25000 kgOther shipments' weight
9200 kgLet,
The Greatest number of 80kg crates will be "c".Now,
As we know the formula,
→ [tex]Other \ shipments' \ weight + (Crates' \ weight\times Number \ of \ crates) \leq Greatest \ weight \ container[/tex]By substituting the values, we get
→ [tex]9200 + (80\times c) \leq 25000[/tex]
→ [tex]9200 + 80c \leq 25000[/tex]
Thus the above response is right.
Learn more:
https://brainly.com/question/22154354
(2,-8) and has a slope of 4
Answers
Answer:
The equation of the line is;
y = 4x - 16
Step-by-step explanation:
Here, we want to find the equation of a line that passes through the point (2,-8) and has a slope of 4
To get this equation, we are going to use the point-slope form
Thus, we have it that;
y-y1 = m(x-x1)
y -(-8) = 4(x-2)
y + 8 = 4x - 8
y = 4x -8-8
y = 4x - 16
HELP ILL GIVE BRAINLIEST Write (2 + 3i)^3 in simplest a + bi form.
Answers
Answer:
18
Step-by-step explanation:
(2+3)^3 = (6)^3 = 18
Step-by-step explanation:
18
(2 + 3)^3=(6)^3=18
A fruit basket of apples and oranges has 14 fruit Apples cost $3 each and orange cost $2 each the fruit basket costs $34 write and solve a system of linear equations to determine how many apples x and oranges y are in the fruit basket
Answers
Answer:
3(a)+2(o)=14
3(a)+2(o)=34
3(4)+2(1)=14
3(8)+2(5)=34
Step-by-step explanation:
4 apple's and one orange to get 14 pieces of fruit. 8 apples and 5 oranges to get 34 pieces of fruit.
Casey is trying to run a certain number of miles by the end of the month if Casey is 60% of the way to achieving our goals and she has already ran 24 miles how many miles is she trying to run by the end of the month
Answers
Answer:
40 miles is her goal.
Step-by-step explanation:
The problem says that 24 miles is 60% of her goal for that month.
You cab make a proportion with x being the goal for the whole month.
24/x = 6/10
You cross multiply and get:
6x = 24 x 10
6x = 240
x = 40
40 miles is the answer.
Pls help and show workings due ASAP
Answers
Answer:
x is 5
ST is 45
Step-by-step explanation:
In the given figure
∵ m is the bisector of the segment SU
→ That means m intersects SU at the midpoint of SU
∵ m ∩ SU at point T
∴ T is the midpoint of SU
→ The midpoint of a segment divides it into two equal parts
∵ The point T divides SU to ST and TU
∴ ST = TU
∵ ST = 9x
∵ TU = 4x + 25
→ Equate them
∴ 9x = 4x + 25
→ Subtract 4x from both sides
∵ 9x - 4x = 4x - 4x + 25
∴ 5x = 25
→ Divide both sides by 5
∴ x = 5
→ Substitute the value of x in ST
∵ ST = 9(5) = 45
∴ ST is 45
Tash conducted a survey of the students in her school.
From the results, Tash calculated that 60% of the
students go to school by bus.
Lian knows that 450 students go to school by bus.
How can she use the information to find the number of
students in the school?
Answers
Answer:
The total number of students in the school is 750. You can use algebraic equation to calculate the number of the students. Let x be the total number of students in the school. Hope this helps.
Please helppppppp meeeee it’s easy :)
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Examine the regular pentagon below.
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please answer, I need help asap, thanks :p
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angle A: most likely 20 degrees
angle B: most likely 100 degrees
explanation:
a full circle is 360 degrees.
the angle on the bottom left-hand corner is most obviously a 90 degree angle.
the angle on the right hand corner labeled “75 degrees” is the same as the angle in the top left hand corner, as they are mirrored. this means:
360-90-75-75=120
there is 120 degrees left for the two values that we are looking for. since B is an obtuse angle, I would say that angle B is most likely 100 degrees and the smaller angle (angle A) would be 20 degrees.
hope this helps you!
xoxo
Answer:
Angle A = 15
Angle B: 105
Step-by-step explanation:
Angle A and 75° add up to 90°
75 + x = 90
x = 90 - 75
x = 15
Angle B and 75° add up to 180°
75 + x = 180
x = 180 - 75
x = 105
The population of Kenya was 45.1 million in 2009 and has been growing by 2.3% each year. If this trend continues, in what year will the population exceed 52.2 million?
Answers
Answer:
6.4294 years
Step-by-step explanation:
45.1 million in 2009 -- 2.3% each year
In what year will the population exceed 52.2 million?
We use exponential growth formula
ξ(t) = y = ab^t
a = 45.1, b = 1+ξ, ξ= 2.3%, ξ(t) = 52.2
52.2/45.1 = (1.023)^t
We take log both side
Log(1.15742794) = tlog(1.023)
0.0634939619 = t0.00987563371
t = 0.0634939619/0.00987563371
t = 6.429355701569454
t = 6.4294 years
Victor left his house riding his bike at a speed of 18 km/h. When Victor was km away from his house his brother Alex left the house riding at a rate of 24 km/h. How long will it take Alex to catch up with Victor?
Answers
Complete question :
Victor left his house riding his bike at a speed of 18 km/h. When Victor was 1/2 km away from his house his brother Alex left the house riding at a rate of 24 km/h. How long will it take Alex to catch up with Victor?
Answer:
0.083333 or 5 minutes
Step-by-step explanation:
Victor's speed = 18 km/hr
Alex's speed = 24 km/hr
Alex left after Victor has moved a distance of 1/2 km
Time Alex will catch up with Victor :
Let time = x
distance at which Victor = Alex
(18 * x) + 0.5 = (24 * x)
18x + 0.5 = 24x
18x - 24x = - 0.5
-6x = - 0.5
x = 0.5 / 6
x = 0.0833333 hour
x = 0.0833333 *60 = 5 minutes
Answer:
5 min
Step-by-step explanation:
slope of y= 4x - 1.
Answers
Answer:
Slope m = 4
General Formulas and Concepts:
Algebra I
Slope-Intercept Form: y = mx + b
m - slope b - y-interceptStep-by-step explanation:
Step 1: Define
[Slope-Intercept] y = 4x - 1
Step 2: Break Function
Identify Parts.
Slope m = 4
y-intercept b = -1
9) In a study of 200 students under 25
years old, 20% have not yet learned
to drive. How many students cannot
drive?
Answers
Answer:
40 students cannot drive
Step-by-step explanation:
200 divided by 10 = 20
20 times 2 = 40
-4 + 9(7 + 3f) please help
Answers
Answer:
27f + 59
Step-by-step explanation:
-4+63+27f
The answers is
59+27f
Which question can be answered using the expression 1/3 Divided By 3/4
Answers
Answer:
0.4
Step-by-step explanation:
The question that can be answered using the expression can be 1/3 of the total apple pie is divided in to 3/4 parts.
What are Expressions?Expressions are mathematical statements which consist of two or more terms and terms are connected to each other using mathematical operators like addition, multiplication, subtraction and so on.
Given expression is 1/3 ÷ 3/4.
Here the operation is division.
So 1/3 of something is divided in to 3/4 parts.
Let a total amount of something be 1/3 units.
Suppose you have to divide it into 3/4 parts.
Then this expression can be used.
Let the total amount of apple pie left is 1/3 part of the total.
You have to divide t into 3/4 parts.
Hence the word problem can be 1/3 of the total apple pie is divided in to 3/4 parts.
Learn more about expressions here :
https://brainly.com/question/13015660
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Which expression is a way to represent the ratio of a to b?
b:a
b to a
a/b
b/a
Answers
Answer:
a/b
Step-by-step explanation:
ratio is a to b so a:b or a/b
Help me please i need it
Answers
Answer:
Um A?
Step-by-step explanation:
OKAY WHY ARE U IG
-ORI
-G ME!!!!!
Which of the following is NOT a ratio?
A- (1,2)
B- 1:2
C- 1/2
D- 1 to 2
Answers
Answer:
A is not a ratio
Step-by-step explanation:
Answer:
A. - (1,2)
Step-by-step explanation:
We can represent the ratio as a fraction (like in C.), by using the preposition "to" just like in D, and by using a ":" sing just like in number B. So that leaves us with only one option which is A.
A pyrotechnician plans for two fireworks to explode together at the same height in the air. They travel at speeds shown below. Firework B is launched 0.25 s before Firework A. How many seconds after Firework B launches will both fireworks explode? Firework A 240 ft/s Firework B 200 ft/s
Answers
Answer: 1.50 seconds
Step-by-step explanation:
Let x = Time taken by Firework A to explode( in seconds ).
Time taken by Firework B = x+ 0.25 seconds
Distance covered = Time × Speed
Distance covered by Firework A = 240 x
Distance covered by Firework B = 200 (x+0.25) = 200x+50
When both at same height , then
240x = 200x+50
⇒ 240x- 200x =50
⇒40x =50
⇒ x = 1.25
Total time = x+ 0.25 = 0.25+ 1.25 = 1.50 seconds
Hence. after Firework B launches it will take 1.50 seconds to launch.
Зу + 6x = 12
8х + 4у - 16
How many solutions does this system of linear equations have? Explain.
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Answer:
Step-by-step explanation: