I need some help please
HLP MATH pls look at the image below
Explain the cosine rule and sine rule while also saying how to use it and provide examples (keep it in simple terms)
Answer:
Sure, I'll explain the cosine rule and sine rule in simple terms:
The cosine rule (also known as the law of cosines) is used to find the length of a side or the measure of an angle in a triangle given the lengths of the other sides and the angle between those sides. It states that c^2 = a^2 + b^2 - 2ab cos(C), where c is the length of the side opposite angle C, and a and b are the lengths of the other two sides.
Here's an example of how to use the cosine
Suppose we have a triangle with sides a=6, b=8, and an angle between them c=45 degrees. We want to find the length of the remaining side of the triangle, side a.
Using the cosine rule:
a^2 = b^2 + c^2 - 2bc * cosA
where A is the angle opposite side a, we can plug in our values and solve for a:
a^2 = 8^2 + 6^2 - 2(8)(6) * cos(45)
a^2 = 64 + 36 - 96 * 0.707
a^2 = 10.56
a = sqrt(10.56)
a = 3.25 (rounded to two decimal places)
Therefore, the length of side a is approximately 3.25 units.
Answer:
Step-by-step explanation:
What's the answer to this problem ??
"A stack of boxes is 6/5 meters tall. Each box is 3/10 meter tall. How many boxes are in the stack?"
Answer:
\({\Large{ \fbox{ \sf{Four \: Boxes }}}}\)
Step-by-step explanation:
Let x boxes are there such that sum of each box's height results in height of stack of boxes,
the expression will look like this
\( \frac{3}{10} \times x = \frac{6}{5} \)
solving for x,
\(x = \frac{6 \times 10}{5 \times 3} \)
\(x = \cancel{ \frac{60}{15} }\)
\(x = 4\)
Answer - There are four boxes.
\(\sf \small \pink{Thanks }\: \green{for} \: \blue{joining} \: \orange{brainly } \: \red{community}!\)
THIS IS THE LAST QUESTION I SWEAR I'LL GIVE BRAINLIEST
Answer:
1 1/3 :)
Step-by-step explanation:
5 x 4 = 20 so you do the same to the other side, so 1/3 x 4/1 = 4/3 or 1 1/3
I need help with these math problems, if you could help me out it would be great thanks.
Answer:
I can help!!!
Step-by-step explanation:
Answer: 33: -3 + 8 = 5 (5 • 2 = 2.5)
34: 12 -| -7 |
Step-by-step explanation:
Consider Carmen’s plans.
Parallel lines k and l are crossed by transversal t. Line m crosses lines t, k, and l. The angles formed by lines k, t, and m, clockwise from top left are 2, 1, blank, blank, blank (6 x + 5) degrees; formed by lines l and t are blank, (7x minus 4) degrees, blank, blank; formed by lines l and m are 48 degrees, blank, blank, blank.
Carmen used her knowledge of angle relationships to find the value of x in the diagram.
What is the value of x?
x = 5
x = 9
x = 13
x = 16
Answer:
x=9
Step-by-step explanation:
hope this helps
I can confirm that the true answer is 9
On a certain hot summer day, 481 people used the public swimming pool. The daily prices are $1.25 for children and $2.25 for adults. The receipts for admission totaled $865.25. How many children and how many adults swam at the public pool that day?
Answer:
264 Adults & 217 Children
Step-by-step explanation:
children = c
adults = a
a + c = 481...(Equation 1)
1.25c + 2.25a = 865.25...(Equation 2)
Equation 1 can also be written as,
a = 481 - c
Now we can substitute the value of 'a' in Equation 2
1.25c + 2.25 (481 - c) = 865.25
1.25 c + 1082.25 - 2.25c = 865.25
-c = 865.25 - 1082.25
-c = -217
c = 217
Now, we can substitute the value of 'c' in Equation 1
a + c = 481
a + 217 = 481
a = 481 - 217
a = 264
3(x+3)=7+3x+6-x Please help!
No solution, Many solutions, or One solution?
Need this answered by 3:35 September 4, 2020
Answer:x=4
Distribute
Combine like terms
Inverse operation
PLEASE SHOW UR WORK i really need help
H - 20 = 1/2(H - 24) + 13
Pls help me
Answer:
H-20=H-24/2+13
H-20=H-24+26/2
2(H-20)=H-24+26
2H-40=H+2
2H-H=2+40
H=42
Step-by-step explanation:
Julie is painting a mural on a rectangular wall in her school. The wall is 20.5
feet long and 10
feet wide. So far, her mural covers 20%
of the wall. She will paint the remaining part of the wall over the next four days. She will paint the same amount of the wall on each of those four days.
How much of the wall, in square feet, will Julie paint on each of the next four days?
Enter your answer in the space provided.
the wall she's using for the mural is (20.5)(10) = 205 ft², so far she has done 20% of that, well, she still has 100% - 20% = 80% to go on the next four days, so on the next four days she'll be doing 80% of 205 ft².
\(\begin{array}{|c|ll} \cline{1-1} \textit{\textit{\LARGE a}\% of \textit{\LARGE b}}\\ \cline{1-1} \\ \left( \cfrac{\textit{\LARGE a}}{100} \right)\cdot \textit{\LARGE b} \\\\ \cline{1-1} \end{array}~\hspace{5em}\stackrel{\textit{80\% of 205}}{\left( \cfrac{80}{100} \right)205}\implies 164~ft^2\)
PLEASE ASAP HURRY!!!
Answer:
Strawberry= 3
Watermelon=3
Coconut=9
Orange=5
Step-by-step explanation:
Quite easy, you can use substitution
First look at the simplest row that can be solved by itself
row 2:
2strawberries +4 = 10
2 strawberries= 6
1 strawberry = 3
Row 3: Strawberry(3)+ orange=8
1 orange= 5
Rpw 4: 14= 1coconut +orange(5)
1 coconut= 9
Row 1: Coconut(9)+ watermelon+ coconut(9)= 21
2 coconut(18)= 21
1 watermelon = 3
helppppppppppppppppp lol
Answer:
There are no solutions.
Step-by-step explanation:
If there is 74 and 54 but with the same 15x: there is no solution. Even with negative.
Answer:
There is no solutions
Step-by-step explanation:
lol
Can someone help please and explain how you got your answer and please don't play around I really don't wanna fail. Ill give brainlist too.
Answer:
5
Step-by-step explanation:
Hello There!
The mean is pretty much the average
So to find the mean we first add up all of the values
2+3+6+6+7+8+8=40
Then we count the amount of points
There are 8 points
our final step is to divide the total value by the total number of points
40/8=5
so the mean (average) would be 5
Note: I'll brainliest to who answers this correctly. Your teacher will grade your response to ensure you receive proper credit for your answer.
6. The box-and-whisker plot below shows the number of text messages received in one day by students in the seventh and eighth grades at Lincoln Middle School.
Two box and whisker plots are shown above a number line.
1.Where do the two sets of data overlap?
2.Find the IQR of each set.
3.Find the difference between the medians of the sets.
4.What number multiplied by the IQR equals the difference between the medians of the two sets?
Pls answer the 4 questions above and write an essay using the Box and Whisker plot I screenshotted. Don't forget, I'll brainliest!
1. They overlap in the 22-26 region, because of lines of both box and whisker plots are stacked on top of each other.
2. Set 1: Q1: 14 Q3: 22 IQR\(=22-14=8\) Set 2: Q1: 26 Q3: 34 \(IQR=34-26=8\)
3. M is the median. So, \(M_2-M_1=30-18=12\)
4. We have \(8x=12\). Solving for x, we get \(x=\frac{12}{8}=1 \frac 12\)
how many terms are in this expression 4 x2 - 2x + 8
Please help! Thank you
Which graph shows the solution set for this inequality : 8z ≥ 16
please answer quickly
Answer:
37.5
Step-by-step explanation:
cosФ = \(\frac{A}{H}\)
cos(33°35') = \(\frac{m}{45}\)
m = 45 × cos(33°35')
m = 37.5 (1d.p.)
HALPP MEHHHHHHHHHHHHHHHHhhhhhhhhhhhhhhhhhhhhh
A) 3 years
B) 7 years
C) 5 years
Answer:
T=5
Step-by-step explanation:
the formula is SI=P×R×T
Substitute and make T the subject of the formula
At a recent football game of 8,450 in attendance, 150 people were asked what they prefer on a hot dog. The results are shown.
Ketchup Relish Chili
54 36 60
Based on the data in this sample, how many of the people in attendance would prefer ketchup on a hot dog?
4,225
3,380
3,127
3,042
By proportion that is:(54/150) * 8450= 54 * 56 1/3= 3042
Answer:
By proportion that is:(54/150) * 8450= 54 * 56 1/3= 3042
Step-by-step explanation:
pls you will the ultjimate rizz
Answer:
22 square units.
Step-by-step explanation:
What is the area?The area is the total space taken up by a flat (2-D) surface or shape. The area is always measured in square units.
To solve for the area of the figure, we can split the figure into 3 shapes. (2 triangles and a rectangle)
An expression you can use to solve for the area of a rectangle and the area of a triangle is:
(Length × width) = area of a rectangle.(Length × width) ÷ 2 = area of a triangle.Solving for the triangle on the left:
(4 × 3) ÷ 2 =?Solving what is in the parenthesis:
12 ÷ 2 = 6Therefore, the triangle on the left has an area of 6 square units.
To solve for the rectangle in the center, we can use this expression:
4 × 3 = 12Therefore, the area of the rectangle in the center is 12 square units.
Solving for the triangle on the right:
(4 × 2) ÷ 2 =?Solving what is in the parenthesis:
8 ÷ 2 = 4Therefore, the area of the triangle on the right is 4 square units.
Adding all of the areas together:
6 + 12 + 4 = 22Therefore, the total area of the shape is 22 square units.
In 2 - 4 sentences explain where you might see and use scale factoring in your everyday life and how it is useful.
Answer:
2-4--2
Step-by-step explanation:
Answer:
An example of scale factoring that could be used in everyday life is when modeling. When modeling and object you don't make it, for example, 10 feet because that cannot fit on a computer screen. So when on a computer you see a much smaller-scale version.
Hi! I’ll give brainliest to best answer!
Thanks so much in advance!
Which table below represents a function?
Answer:
D
Step-by-step explanation:
Because im right! yesssss
The attendance for the last 4 years at a county fair is shown in the table.
Answer:
Step-by-step explanation:
The attendance
for the last 4 years at a county fair is shown in the table.
County Fair Attendance
Year Attendance
9 ,278
10,365
12 , 128
13,304
This year, the first 20% of people attending the fair will receive a raffle ticket. Of the people who receive raffle tickets, ? will receive a small prize.
1. Based on the data in the table, determine a reasonable estimate of the number of people who will attend this year's fair. Explain how you
found your estimate.
. Use your estimate to find the approximate number of people who will receive a small prize at this year's fair.
Show your work or provide an explanation of how you found the approximate number of people who will receive a small prize at this year's
Answer:
a) 15,007 people
b) 1,000 people
Step-by-step explanation:
To determine how many people will attend this year's fair, we can find the percent increase of people each year:
From year 1 to year 2, (10,365 - 9,278)/9,278 = 11.7% increase
From year 2 to year 3, (12,128 - 10,365)/10,365 = 17.0% increase
From year 3 to year 4, (13,304 - 12,128)/12,128 = 9.7% increase
Can you guys help? I got this, and I want to divide the parts in eighths? What fraction is it? HELP MEEE!!!! IM NOT A SMART DUDE!!!!!
First draw a line in the middle of your box vertically. Then draw a horizontal line that is also in the middle of your box and then draw another line above the horizontal line and below the horizontal line in between the two boxes you made I added a picture below to show. The fraction is 1/8
Rebecca is playing a video game that involves planting and cutting down trees. She moves up an energy level for each tree she plants, and she moves down a level for each tree she cuts. If Rebecca reaches energy level 10, she will earn bonus points.
Rebecca is currently at energy level 4. The results of her next 3 turns are:
Turn 1: 6 trees cut
Turn 2: 8 trees planted
Turn 3: 1 tree cut
2. What is Rebecca's energy level after Turn 1?
Answer: -2
if she cuts 6 trees then her energy level will go from 4 to -2
Step-by-step explanation:
Which equation would you use to find the distance between the two points?
A. |-6 - 5|
B. |6 - 5|
C. |6 - (-5)|
D. |-6 + 5|
it's C because |-6 - 5| can be simplified to |6+5| which is |11| therefore, the distance is 11 blocks.
how many triangles can be constructed with the side lengths of 5 inches, 8 inches, and 20 inches
Answer:
No triangles
Step-by-step explanation:
The Triangle Inequality Theorem, states that the sum of the lengths of any two sides of a triangle is greater than the length of the third side
5+8 > 20 <-- is not true.