I really need help understanding when/ what situations to use sine rule and cosine rule with triangles, plssss.
thank you :)))
Answers
Answer:
See below :)
Step-by-step explanation:
If you want a missing angle or side in one pair, and you have at least one side and angle pair, use the sine rule.
If you want a remaining side, and you have the other two sides and the angle opposite the unknown side, use the cosine rule.
If you want an angle, and you have all three sides, use the cosine rule rearranged for angles.
I attached a picture to help explain better :)
Related Questions
Find the value of x
………………….
Answers
Answer:
x = 5
Step-by-step explanation:
congruent rectangles
4/3 = (x+3)/(2x-4)
8x - 16 = 3x + 9
5x = 9 + 16
x = 25/5
x = 5
Janet has. completed 60% of her eliptical work out. if her entire workout last 1 hr , how many more minutes does she still need to work out?
Answers
1 hour = 60 minutes.
60 minutes x 60% = 36 minutes completed.
60 minutes -36 minutes = 24 minutes left
answer: 24 minutes
Answer:
24 min
Step-by-step explanation:
If shecompleted 60% she stil has 40 % of the hour-long (60 minute) workout to go
.40 ( 60 min) = 24 min
what is the equation of the line with the slope of -3/5 and an x-intercept of 6
Answers
Answer:
Step-by-step explanation:
try
x = -3/5
i might be worng tho
Ponyboy says 16 years on the streets can teach and show a person all the wrong things. What does he mean by this
Answers
There are many things happening on the streets and some of them are bad. There is a high likelihood that if you are on the streets you will see bad things happening.
solve for x : 13x + 7 = -227
Answers
Answer:
-18
Step-by-step explanation:
1. Subtract 7 from both sides:
13x = -234
2. Divide 13 from both sides:
13x/13 = -234/13
x = -18
hope this helps!
In a telephone poll, 3 people said they like shopping and 16 people said they do not like shopping. What is the ratio of the number of people who do not like shopping to the number of people who like shopping
Answers
Answer:
16:3
Step-by-step explanation:
Thats the way ratios work
Jeriel is 1.65 meters tall. At 2 p.m., he measures the length of a tree's shadow to be 28.05 meters. He stands 23.5 meters away from the tree, so that the tip of his shadow meets the tip of the tree's shadow. Find the height of the tree to the nearest hundredth of a meter.
Answers
Answer:10.17
Step-by-step explanation:
Jaylynn draw a hen on graph paper using scale of 1 unit on her graph paper represents 5cm.The hen has height of 11 units in the drawing.
What is the height,in cm,of the actual hen?
Answers:
A.33
B.44
C.55
D.66
Answers
Answer:
55
Step-by-step explanation:
There are 11 units used on the paper. If each unit is 5cm, that means you can do 11*5 and get 55 cm.
Answer:
55
Step-by-step explanation:
1 unit = 5cm
we need to find out how much 11 units are so,
we multiply both sides: 1 unit *11 = 5cm*11, 11 units = 55 cm
If L = 3 inches, W = 2 inches, and H = 5 inches, what is the volume of the rectangular prism?
Answers
Answer:
3 x 2 x 5 = 30
Step-by-step explanation:
To calculate a rectanglars prism all you have to do is multiply the length, width and height together.
Please answer ASAP ........
Answers
Answer:
[tex]\sf \boxed{\sf volume=\frac{16}{9} \ ft^3}[/tex]
Explanation:
Cube volume: Length x Width x Height
Volume of the entire cuboid:
Length x Width x Height
(1/3 x 4) x (1/3 x 3) x (1/3 x 4)
4/3 x 1 x 4/3
16/9
Volume of the cuboid
Length ×Breadth×Height(1/3×4)²(1/3×316/9×116/9ft³Solve for x.
6(x-2)=4
1. X=1
2.x=1 1/3
3. X=2 2/3
Answers
Answer:
x = 2 2/3
Step-by-step explanation:
6(x - 2) = 4
6x - 12 = 4
6x - 12 + 12 = 4 + 12
6x = 16
6x/6 = 16/6
x = 2 2/3
Please helppppppp!! Khan Academy
Answers
A bedroom is 10 ft. by 12. ft. with 8 ft. high walls. How much would it cost to put padding and carpet in this room
Answers
Answer $2,295.60:
Step-by-step explanation: i just did this assignment and got it right, hope this helps
The process of making estimates and drawing conclusions about one or more characteristics of a population through analysis of sample data drawn from the population is known as _____.
Answers
Answer:
Statistical Inference
Step-by-step explanation:
Statistical analysis has two main focuses: descriptive statistics and infernetial statistics.
Descriptive statistics summarise data using graphs and summary values such as the mean and interquartile range. Descriptive statistics can help us identify relationships and patterns. Descriptive statistics do not draw conclusions beyond the data we already have. Inferential statistics anaylsis does allow us to make conclusions beyond the data we have.
A defintion of inference is:
The process of drawing conclusions.
Miguel is posting photos on a school website . He has 48 photos , and he is allowed to use 12 pages . He wants to put the same number of photos, p. on each page
How many photos are in each page
Answers
whinch expression is greater than 250
Answers
Answer:D
Step-by-step explanation: All others are fractions of 250 While D is a multiple of 250
Answer:
➡ [tex]9/8[/tex] x 250
➡ [tex]2[/tex] x 250
Greater than 250
Which statement is true about the streets? Select ALL that apply.
A. First Street intersects with Second Street and Third Street.
B. Second Street is perpendicular to Third Street.
C. First Street and Third Street are parallel.
D. Second Street and Third Street are parallel.
E. First Street is perpendicular to Second Street and Third Street.
Answers
Answer:
A and D and E
Step-by-step explanation:
Street 2 and 3 are parallel and Street 1 is intersecting it
Answer:
The anserws are A and D.
Step-by-step explanation:
helpppp meeeee please
Answers
Answer:
?= 35.66º
Step-by-step explanation:
26/32=0.8125
cos 35.66º=0.8125
Answer:
? = 36 degrees
Step-by-step explanation:
Use trigonometry!
since we know the adjacent and hypotenuse sides, use cos.
cos(?) = adjacent/hypotenuse = 26/32
? = arccos(26/32)
? = 35.659
Rounding it up, we get.
? = 36 degrees
What is the value of f(-3)
Answers
Answer:
4
Step-by-step explanation:
the closed circle falls on 4
A rectangular prism has a volume of 240 cubic feet. If the length is 4 feet and the width is 4 feet, what is the height of
the prism?
Answers
Answer:
Let's use the formula for the volume of a rectangular prism;
V = l · w · h
Where 'l' represents the length, 'w' stands for the width, and 'h' displays as the height. (V evidently stands for the volume)
What we know:
Volume = 240 ftLength = 4 ftWidth = 4 ftWhat we need to find out:
HeightLet's plug in what we know into the formula:
V = l · w · h
240 = 4 · 4 · h
Now let's solve for h:-
240 = 16 · h
240 = 16h
Get rid of h's co-efficient by dividing 16 from both sides because the inverse operation of multiplication(since 16 is being multiplied by h) is division.
÷16 ÷16
Finally, you would end up with a result of:
15 = h
Hence, the height of this prism is 15 feet.
(3 points) Consider the parabola below.
Standard Form
y = ax2 + bx + C
Vertex Form
y = a(x h)? + k
Intercept Form
y = a(x - p)(x - q)
Part A: Write the equation in intercept, vertex, and standard form. For all equations,
a is equal to 1.
Show vour work or explain how
you determined your answer.
Answers
Answer:
Step-by-step explanation:
When a = 1,
Standard form:
= x^2 + bx + c.
Intercept form:
= (x - p)(x - q)
Vertex form:
(x - h)^2 + k.
Heyy i need help pls :(
Answers
Answer:
First one x = 14
Step-by-step explanation:
First one
The sum of the interior angles of a triangle = 180
so
(180-124) + (180-6x) + 2x = 180
x = 14
Jordan has 28 golf balls. 28 golf balls in 4 rows and 7 columns. Of the 28 golf balls, 17 are yellow. How many golf balls are yellow?
Answers
The distribution of the balls is an illustration of proportions, and 4 of the golf balls are yellow
How to determine the number of yellow golf balls?The distribution of the balls are given as:
Total = 28
Yellow = 1/7
The number of yellow balls is given as:
Yellow = 1/7 * Total
This gives
Yellow = 1/7 * 28
Evaluate the product
Yellow = 4
Hence, 4 of the golf balls are yellow
Read more about proportion at:
https://brainly.com/question/1781657
#SPJ1
A courier service charges a $5 pick up fee plus $0.15 per mile. The total charge to deliver a package was $7.85. How many miles did the courier service travel to deliver the package?
*
Answers
Answer:
19 miles
Step-by-step explanation:
What is the area of figure abcd? a trapezoid abcd is drawn with length of parallel sides ab and cd equal to 10 inches and 12 inches, respectively. the length of one of the non-parallel sides bc is 6 inches. side bc is perpendicular to dc. a perpendicular line drawn from a to side cd meets cd at e. 54 square inches 60 square inches 66 square inches 72 square inches
Answers
Answer: 60 square inches
Step-by-step explanation:
Answer:
66 square inches
Step-by-step explanation:
10 times 6 equals 60 and 60 plus 6 is 66. You add the six because that is the area of the triangle and you get 60 from multiplying 10 and 6 because that is the area of the rectangle.
please help!! Solve for the hypotenuse and then determine the ratios below. (Show all work)
Answer:
Hypotenuse:
sin x° =
cos y° =
Answers
The hypotenuse of the right triangle is 29 units.
The ratios are as follows:
sin x = 20 / 29
cos y = 20 / 29
What is a right angle triangle?Right angle triangle has one of its angles as 90 degrees. The sides and angles can be found using trigonometric ratios. The sides can also be solved using Pythagoras theorem.
The hypotenuse side is the longest side of a right angle triangle.
Therefore,
c² = a² + b²
c = √20² + 21²
c = √400 + 441
c = √841
c = 29
hypotenuse = 29 units
sin x = opposite / hypotenuse = 20 / 29
cos y = adjacent/ hypotenuse = 20 / 29
learn more on right angle triangle here: https://brainly.com/question/10171801
please HELPPPPPPPPPPPPPP
Answers
Answer:
q= -rs/t
Step-by-step explanation:
Can you help me with this question Plsss?
Answers
If X = 18 units, Y = 24 units, and Z = 30 units, what is the sine of
Answers
Answer:4 days ago — Click here to get an answer to your question ✍️ If X = 18 units, Y = 24 units, and Z = 30 units, what is the sine of.
Step-by-step explanation:
3
10
57:31
Jakob buys lunch at school on Mondays, Wednesdays, and Thursdays. He spends $3.50 for each lunch. Which equation
can be used to find the number of weeks, w, it will take Jakob to spend $84 on lunch?
3.50w-84
O (3x3.50)-84
3w-84
(3+3.50)w-84
Answers
Step-by-step explanation:
its say $3.50 each so for a week you multiply $3.50 by 3 because the are 3 days which will be equal to $10.5
the you divide $84 by $10.5
and the answer is =8weeks