Answers
The three main trig functions are sine (written as sin), cosine (written as cos), and tangent (written as tan).
Sine of an angle = the length of the side opposite (aka across) the angle / the length of the hypotenuse
Cosine of an angle = the length of the side adjacent (aka the side next to which isn't the hypotenuse) to the angle / the length of the hypotenuse
Tangent of an angle = the length of the side opposite of the angle / the length of the side adjacent to the angle.
The acronym to remember this is SOHCAHTOA
SOH | CAH | TOA
SOH means sin(x) = opposite/hypotenuse
CAH means cos(x) = adjacent/hypotenuse
TOA means tan(x)= opposite/adjacent
cosB = length of adjacent side/length of hypotenuse = 7/25
tanB = length of opposite/length of adjacent = 24/7
sinB = length of opposite/length of hypotenuse = 24/25
Related Questions
PLS HELP the LAST QUESTION, please...
Answers
Answer:
280 Cubic inches
Step-by-step explanation:
When finding the volume, the equation is V=l*w*h
Therefore, the equation should be:
10.1*3.9*6.8
This is equal to exactly 267.852
However, the answer is 280 cubic in. because it's a larger number and it's about 13 from the actual answer. On the other hand, 250 cubic in. is about 17 from the actual number.
1 point
When solving the system of equations below, what is the appropriate
substitution?
7x + 10y = -1
x = 5y - 8
O 7x + 10(5y - 8) = -1
7x + 10y = 5y - 8
O 7(5y - 8) + 10y = -1
O -1 = 5y- 8
Answers
ill mark brainlist plss help
Answers
Answer:
345,512
Step-by-step explanation:
one liter is a thousand ml, so u just have to multiply
Subject:Mathematics
Answers
85 - 79 = 6
The Range Should Be 6
Help me again??????????????
Answers
Answer:
Part A is no because after subtracting it is 6/10 and 6/10 is not equal to 1/2
Step-by-step explanation:
First you make the fraction's denominator equal
2/5 = 4/10
Camen's water bottle is 1 8/10
Jorge's water bottle is 2 4/10
1/2 = 5/10
Make the fractions into a improper fraction
Camen's is 18/10
Jorge's is 24/10
subtract it
24 - 18 = 6
So Part A is no because after subtracting it is 6/10 and 6/10 is not equal to 1/2
i need help with this asap! i will give brainliest :) (image included)
Answers
7 x 3 = 21 so it is 21 ft cm your welcome
Answer:
The answer is C = 63π
Step-by-step explanation:
V = πr2 h
V = π (3)2 x 7
V = π (9) (7)
V = 63 π
Rachel needs to drive a total of 205.2 miles. So far, she has driven 56 miles. How many more miles must Rachel drive?
miles
X 5 ?
Answers
Answer:
205.2/56 = 3.66428571
rounded answer 3.7 hours
A trapezoid has base lengths of 2.5 inches and 10 inches and an altitude of 8 inches. What is the area of the trapezoid?
Answers
Answer: 50 inches
Step-by-step explanation:
Simplify x + 4x + 6x
Answers
answer:
11x
step-by-step explanation:
just add them since they are like termsx + 4x + 6x
= 11x
Answer:
11x
Step-by-step explanation:
just add them all together
x + 4x = 5x
5x + 6x = 11x
hope this helps :)
9 ( x + 4 ) = 63
Solving 2 step equations
Answers
Answer:
The answers is x=3
Step-by-step explanation:
Divide both sides by the numeric factor on the left side then solve.
Hope this helps.
May i please have a brainless Thank you.
Help me with this!!!!
Answers
Well the distance from the two points is 15 so that means the midpoint in -10+7.5=-2.5. There you go! Have a nice day.
A football team took possession of the ball on the 50 yard line. They lost 5 yards on the first down, and lost another 6 yards on the play. What yard line does the team hike the ball on the third down of their possession?
Answers
Answer: The answer should be 39 yard line
Step-by-step explanation: If you start at the 50 and remove 11 yards you will have 39 yards left
HELPPP MEEEE HURRY FIND THE AREA
Answers
Answer:
254.34 in^2
Step-by-step explanation:
Evaluate the expression when x=6 and y=4 Explain how you calculated your answer
10y+x 2nd power
Answers
Answer:
Ans = 76
Step-by-step explanation:
10y + [tex]x^{2}[/tex]
=> 10 * 4 + [tex]6^{2}[/tex]
=> 40 + 36
=> 76
Hope it helps :)
#3. Write the slope-intercept equation of
the line
Answers
Answer:
y = - 4x + 5
Step-by-step explanation:
(y-1)/ (5-1) = (x-1)/(-1)
y-1 / 4 = -x+1
y-1 = -4x+4
y = - 4x + 5
Hey i need help with this question. I need it to be solved and I need to see the length of the diagonal. Please put a proper answer or Branly will just take the points away from you. Thanks
Answers
Answer:
x = 40.25 mStep-by-step explanation:
Use Pythagorean
x² = 36² + 18² x² = 1620x = √1620x = 40.25 mAnswer:
in right angled triangle BCD
by using Pythagoras law
P²+B²=H²
A²+B²=C²
36²+18²=x²
x=√1620=18√5m
x=18√5 m is your answer
Plz help with my math!
Answers
Answer:
(-2, 6)
Step-by-step explanation:
Plug in one of the equations into the y-variable (doesn't matter which):
2x + 10 = -4x - 2
Combine like terms by adding the 4x to both sides. This makes it cancel out on the right side, and 2x + 4x on the right side is 6x:
6x + 10 = -2
Combine like terms by subtracting 10 from both sides, making it cancel out on the left side, and on the right: -2 - 10:
6x = -12
Then isolate the x-variable by dividing both sides by 6:
x = -2
Taking the -2, plug it into an x-variable in either of the equations:
y = 2x +10
y = 2(-2) + 10
y = -4 + 10
y = 6
A ratio of two numbers is equal to 3:8. If the smaller number is 12,find the greater number.
Answers
The other no. is:
32
As you can see that in the ratio given, 3 is the smaller no. and 12 too.
So when we divide 12 by 3, we get 4
Then to find the other no. we need to multiply 4 with 8 (which is the other no. in the ratio given)
Therefore, we get the other no. as 32
And also when you divide 12 by 32,
You get the answer as 3 by 8 (which is the given ratio)
Hope you found this helpful!
THANK YOU!!
∝ Sidhdi
help me pleaseeeeeeeeeeeeeeeee
Answers
A +15-15=35-15
A=20
2b=20
2b/2=20/2
B=10
Britney is 10 years old
The radius of a sphere is 7 cm. What is the sphere's volume? Round to the nearest tenth, and use 3.14 for π.
Answers
Answer:
1,436.8
Step-by-step explanation:
State true or false. If 9 is the solution of variable x in the equation fraction numerator 5 straight x space minus space 7 space over denominator 2 end fraction space equals space straight y, then the value of y is 28
Answers
Answer:
False
Step-by-step explanation:
Based on what is stated in the question :
Expressing the worded equation Mathematically,
(5x - 7) / 2 = y
If y = 28
(5x - 7) / 2 = 28
Cross multiply
5x - 7 = 28 * 2
5x - 7 = 56
5x = 56 + 7
5x = 63
x = 63 / 5
x = 12.6
Hence, x ≠ 9
stuck on this hope someone can help me
Answers
Answer:
all are correct except the third one. the formula for that one should be v = a³ since it's a cube
Step-by-step explanation:
Question 1 A square has a perimeter given by the expression 20x + 24y Write an expression for the length of one side of the square.
Answers
Answer:
5x+6yStep-by-step explanation:
to understand thisyou need to know about:algebraPEMDAStips and formulas:parimeter of a square:4alet's solve:factor out 4 from the expression:4(5x+6y)therefore the length of one side of the square is 5x+6yAnswer:
[tex] \boxed{ \tt{s = 5x + 6y}}[/tex]
Step-by-step explanation:
[tex]let \: the \: perimeter \: be \to p \\ let \: the \: side \: be \to s \\ since \to \: p = 4s \\ then \to \: 4s = 20x + 24y \\ hence \to \: 4s = 4(5x + 6y) \\ therefore \to \: s = 5x + 6y[/tex]
The ratio of green bags to white bags in the store is equal to 2 to 5.There are 30 white bags in the store how many green bags are there?
Answers
Answer:
12 green bags
Step-by-step explanation:
Given data
The given ratio of green bags to white bags is
=2 to 5
=2:5
Number of white bags=30
Applying the part to part method, let the number of green bags be x
so
2/5=x/30
cross multiply
30*2=5x
60=5x
divide both sides by 5
x= 60/5
x=12
Hence there are 12 green bags
which statement is incorrect?
Answers
Where exactly are the alleged statements?
I know school can be hard and believe me I know sometimes u just want to quit but being in school can make a difference so I want to get u a lot of points please do your best have a good day or night
Answers
Answer:
yes, school is hard
thanks for points
have a good day ....❤
QUICK HELP PLEASE TIME IS ALMOST UP!!
Answers
Answer: first one
Step-by-step explanation:
Which expression is equivalent to sqrt 8x^7y^8? Assume x>0
Answers
Answer:
√8x^7y^8
= 2x^3y^4 √2x
answer is C. third choice
Step-by-step explanation:
The expression is equivalent to given expression is [tex]2^{\frac{3}{2} }x^{\frac{7}{2} }.y^4[/tex].
What is an equivalent expression?Equivalent expressions are expressions that work the same even though they look different. If two algebraic expressions are equivalent, then the two expressions have the same value when we plug in the same value for the variable.
The given expression is √(8x⁷y⁸).
Here, √(8x⁷y⁸)
= [tex](8x^7y^8)^{\frac{1}{2} }[/tex]
= [tex]2^{\frac{3}{2} }x^{\frac{7}{2} }.y^{\frac{8}{2} }[/tex]
= [tex]2^{\frac{3}{2} }x^{\frac{7}{2} }.y^4[/tex]
Therefore, the equivalent expression is [tex]2^{\frac{3}{2} }x^{\frac{7}{2} }.y^4[/tex].
To learn more about an equivalent expression visit:
https://brainly.com/question/28170201.
#SPJ2
Please help. Find the area of the composite figure
Answers
Okay so multiple 17 times 8 and 16 times 33 and then add the answers together and you should get 664!
Step-by-step explanation:
here's your solution
=> Firstly divide above picture in two parts
=> 1st = traingle
=> 2nd = trapezium
=> area of traingle = 1/2*base*height
=> height = 8
=> we need to find out base by using Pythagoras formula
=> base^2 = 17^2 - 8^2
=> base^2 = 289 - 64 = 225
=> base = √225
=> base of traingle = 15
=> now, area of traingle = 1/2*15*8
=>60sq.units
=> area of trapezium = 1/2(sum of p. sides ) *
distance between them
=> area = 1/2*(33 + 15)*16
=> area = 1/2*16*48
=> area = 384sq.units
=> area of whole figure = 384 + 60
= 444 sq.units
A football field measures 100m by 72m . A school marks a football field similar in shape to a full size football field but only 30m long . What is its width ?
Answers
Answer: 240 m
Step-by-step explanation:
Given
Football field measures [tex]100\ m\times 72\ m[/tex]
Another similar field of length
[tex]L=30\ m[/tex]
and width, say W is marked
So, their area must be the same
[tex]\Rightarrow 100\times 72=30\times W\\\\\Rightarrow W=\dfrac{7200}{30}=2540\ m[/tex]
The width of the football field is 41.7m
The football measures 100m by 72 m. The school football field is similar.
Similar rectanglesFor similar rectangles, the corresponding sides have common ratios. Therefore, let's establish the proportion as follows:
100 / w = 72 / 30cross multiply
3000 = 72w
divide both sides by 72
w = 3000 / 72
w = 41.6666666667
w = 41.7 m
learn more on proportion here: https://brainly.com/question/582443