Find cos x and cos y! Please help me out! You don’t need to answer all just what you can :)
Answers
Answer:
7. cos(X) = 3/5 = 0.6
cos(Y) = 4/5 = 0.8
8. cos(X) = 15/17 ≈ 0.8824
cos(Y) = 8/17 ≈ 0.4706
9. cos(X) = 1/2 = 0.5
cos(Y) = (√3)/2 ≈ 0.8660
Step-by-step explanation:
The trigonometric ratio for cosine is given as follows;
[tex]Cos(\theta) = \dfrac{Adjacent\, side \, to\, angle}{Hypothenus\, side \, length \ of\, the \ triangle}[/tex]
7. The adjacent leg length to ∠X = 27
The length of the hypotenuse side of the triangle = 45
∴ cos(X) = 27/45 = 3/5 = 0.6
Cos(X) = 3/5 = 0.6
The adjacent leg length to ∠Y = 36
∴ cos(Y) = 36/45 = 4/5 = 0.8
cos(Y) = 4/5 = 0.8
8. The adjacent leg length to ∠X = 15
The length of the hypotenuse side of the triangle = 17
∴ cos(X) = 15/17 ≈ 0.8824
The adjacent leg length to ∠Y = 8
∴ cos(Y) = 8/17 ≈ 0.4706
9. The adjacent leg length to ∠X = 13
The length of the hypotenuse side of the triangle = 26
∴ cos(X) = 13/26 = 1/2 = 0.5
Cos(X) = 1/2 = 0.5
The adjacent leg length to ∠Y = 13·√3
∴ cos(Y) = 13·√3/26 = (√3)/2 ≈ 0.8660
cos(Y) = (√3)/2 ≈ 0.8660.
Related Questions
I NEED HELPPPPPPP ASAP
Answers
Answer:
The correct answer is: It has only one real solution, x=-2. This is because the two functions intersect at only that point.
Let me know if this helps!
ITS ME AGAIN AND I NEED HELP AGAIN PLZ AND THX
Answers
Answer:
$44.10
Step-by-step explanation:
$8.40÷2= $4.20 for 1 pound of ground beef
so:
10.5 x $4.20= $44.10
hope that helped :)
question 7 is in the pic
Answers
Answer:
B.
Step-by-step explanation:
This is the information the histogram represents.
Hope it helps!
Answer:
B I think?
Step-by-step explanation:
Hope its right
18,54,162,... what is the 8th term.
Answers
Answer: 39,366
Step-by-step explanation:
a(n)= 3*a(n-1)
Therefore a(8)=3(a7)
Answer:
39366
Step-by-step explanation:
Hope this can help you.But if it's wrong,im so sorry
Have a great day
can someone help me find the equation for this line please
Answers
Answer:
y=1/2x+1
Step-by-step explanation:
Answer:
y=0.5x+1Step-by-step explanation:
First you want to mark 2 points. I chose (-2,0) and (2,2), it does not mater what points you chose. Once you have the two points, you need to find the slope. To calculate the slope can be seen below.
Slope (m) = ΔY/ΔX = 1/2 = 0.5
Once you have the slope, which is 0.5, you fill in this equation.
y = mx + b, where m is the slope and b is the y-intercept.
Now filling in given variables, you get this equation.
y = 0.5x + 1
How many lines of symmetry does the figure have?
A. 0
B. 1
C. 2
Answers
Answer:
The answer is A, so zero.
i need help with geometry!
Answers
Answer:
The answer is 142°.
Step-by-step explanation:
We know this because corresponding angles are always congruent. Thus, in the parallel lines m || n (with the transversal) a corresponding angles is exampled. Nonetheless, x would be equal to 142°.
Am I correct? >.<
Hopefully I helped! :)
given f(x) = 2x - 3, find f(½)
Answers
f(1/2)=2(1/2)-3
f(1/2)= 1-3
f(1/2)= -2
f(1/2) = 2(1/2) - 3
f (1/2) = -2
Write 17% as a decimal
Answers
yuh this is correct lol
A company makes a greenhouse that is shaped like a rectangular prism on bottom and a half cylinder on top.
2 m
9 m
3 m
The rectangular prism has a base that is 3 x 9 m and a height of 2 m.
What is the volume of this greenhouse?
Answers
Answer: 86m cubed
Step-by-step explanation:
The Volume of green house is 54 m³
What is the volume of a rectangular prism?A rectangular prism is a three-dimensional shape that has two at the top and bottom and four are lateral faces.
The volume of a rectangular prism=Length X Width X Height
A company makes a greenhouse that is shaped like a rectangular prism on bottom and a half cylinder on top.
Given;
Base = 3m x 9m
Height of house = 2 m
Find: Volume of green house
Volume of green house = 3m x 9m x 2m
Volume of green house = 54 m³
Therefore, the Volume of green house is 54 m³
Learn more about a rectangular prism;
https://brainly.com/question/21308574
#SPJ2
A teacher surveyed her class after they had taken a vocabulary test. Eighteen of the students claimed they had studied
at least one hour for the test. The remaining twelve students admitted that they had not studied for the test at all. The
test results (expressed as a percent) for the two groups are shown below.
Studled: 88, 100, 94, 79, 92, 100, 95, 83, 89, 99, 100, 91, 89, 95, 100, 93, 96, 84
Did Not Study: 82, 72, 45, 91, 58, 83, 65, 87, 90, 77, 73, 89
Which of the following statements are true?
There is no mode of the group that studied.
In general, those students that studied scored much higher than those students that did not study.
The mean of the group that studied is over 15 percentage points higher than the mean of the group that did not study.
The median of the group that studied is over 95.
The median of the group that did not study is less than 80
Answers
Answer:
The median of the group that did not study is less than 80
Step-by-step explanation:
The median of the group that did not study is 79.5
Factor the following expression completely: 49d +7
Answers
Answer:
7(d+1)
Step-by-step explanation:49d+7
7(d+1)
Answer:
7 (7d + 1)
Step-by-step explanation:
A water gauge in a pond measured 2358 in. At the beginning of the week. After five days of rain, the gauge read 3414 in. By how much did the water level rise?
Answers
Answer:
1056 inches
Step-by-step explanation:
Given that :
Initial measurement = 2358 in
Guage level after 5 days of rain (final reading) = 3414 in
Change in water level rise :
Final reading - Initial reading
(3414 - 2358) in
= 1056 inches
List the first five multiples of 30
What is the lowest common multiple of 12 and 30
Someone answer rlly quick!!!
Answers
I guess this will help you
Step-by-step explanation:
30 , 60 , 90 , 120, 150
,LCM of 12 and 30 is 60
Answer:
List the first five multiples of 30
The first 5 multiples of 30 are: 0, 30, 60, 90, 120.
What is the lowest common multiple of 12 and 30
for LCM (12,30) we find:
Prime factorization of 12 = 2 × 2 × 3.
Prime factorization of 30 = 2 × 3 × 5.
Using all prime numbers found as often as each occurs most often we take 2 × 2 × 3 × 5 = 60.
Therefore LCM (12,30) = 60
plz help plz I am already failing I dont want to fail more
Answers
Answer:
B is the closet to pi hsiebfjwjgsbe9fbe
what’s the equation for getting the circumference of a circle
Answers
Answer:
Its 2πr^2
Step-by-step explanation:
[tex]2\pi {r}^{2} [/tex]
solve the equation x. 6/∑/n-1 (x-3n)=-3
Answers
Answer: I gave the evaluate answer and the differentiate w.r.t x answer. Sorry for caps.
Step-by-step explanation: EVALUATE x4n−3
DIFFERENTIATE W.R.T. X (4n−3)x4(n−1)
Put in ascending order 0.32, -1.9, square root of 5, 2 pi, 2/3
Answers
Answer:
-1.9, 0.32, 2/3, sqrt5, 2pi
Step-by-step explanation:
Find an equivalent expression using the Distributive Property.
g3(7+g)
Answers
What is the image of (0, 6) after a dilation by a scale factor of 1/3 centered at the origin ?
Answers
Answer:
0,4
Step-by-step explanation:
did on delta math rn and got it right. basically just divide 0,12 by 1/3
ex: 0 by 1/3 and 12 by 1/3
12/3 is 4 so 0,4
Help! What's the slope?
Answers
Answer:
2/7
Step-by-step explanation:
You do the number it goes up, 1 to 3 in this case, over the number it goes sideways, 3 to -4. My teacher always said rise over run to help us remember.
name a pair of adjacent angles using the picture above.
Answers
Answer:
<RUS and <SUT
Step-by-step explanation:
Adjacent angles have one side in common but no common interior points.
<RUS and <SUT
Answer:
The right angles are adjacent because adjacent angles
Step-by-step explanation:
Adjacent angles are two angles that have a common vertex
What is the slope line?
Answers
Now find two places on the line and count the difference up then to the side
The slope is y= -2/3x + 3
Hope this helps
A scuba diver dove 40 feet below the surface. He swam up 12 feet to see a unique fish. He followed the fish down 8 feet. Then he followed the fish up 27 feet. How far below the surface is the diver now?
Answers
Answer: 9 feet below the surface.
Step-by-step explanation:
The scuba diver starts 40 ft below the surface. We can represent the position of the scuba diver as:
Position = -40ft
Where the negative sign is because it is below the surface of the water, so
"He swam up 12 feet to see a unique fish."
Now we need to add 12ft
Then his new position is:
Position = -40ft + 12 ft = -28ft
"He followed the fish down 8 feet.
Now we need to subtract 8ft
His new position is:
Position = -28ft - 8 ft = -36 ft
"Then he followed the fish up 27 feet."
Now we add another 27 ft.
The final position will be:
Position = -36ft + 27ft = -9ft
Then the final position of the scuba diver is -9ft, that means that he is 9 feet below the surface.
If 0 < z ≤ 90 and sin(9z − 1) = cos(6z + 1), What is the value of z?
Answers
Answer:
6Step-by-step explanation:
Given the expression sin(9z − 1) = cos(6z + 1), for 0 < z ≤ 90, we are to find z
Note that sin theta = cos(90-thetsa)
sin(9z − 1) = cos(6z + 1)
cos (90 - (9z-1)) = cos(6z + 1)
cos (90 - 9z+1)) = cos(6z + 1)
cos (91-9z) = cos(6z + 1)
Cos will cancel out to have;
91-9z = 6z+1
-9z - 6z = 1-91
-15z = -90
z = 90/15
z = 6
Hence the value of z is 6
Which of the following is true?
|−6| < 5
|−6| < |5|
|−5| < |−6|
|−5| < −6
Answers
Answer:
Answer vary :
|-5| < |-6|
Step-by-step explanation:
honestly in my opinion that’s the answer.
‘these lines | change a negative number to a positive so if it changes -5 and -6 to positives.
wich makes |-5| < |-6| the right one.
and that’s how I came to that solution.
- 5x + 2y = 9
y = 7x
Answers
Answer:
x = 1Explanation:
- 5x + 2y = 9
y = 7xInsert 7x For 'y'- 5x + 2(7x) = 9
Remove Parenthesis-5x + 2 · 7x = 9
Multiply: 2 · 7 = 14-5x + 14x = 9
Add: -5x + 14x = 9x9x = 9
Divide Both Sides By 99x ÷ 9 = 9 ÷ 9
x = 1David just accepted a job at a new company where he will make an annual salary of $69000. David was told that for each year he stays with the company, he will be given a salary raise of $2500. How much would David make as a salary after 4 years working for the company? What would be his salary after t years?
Answers
Answer:
He would be making 79000 after 4 years and I am guessing t means ten and that would be 94000.
Step-by-step explanation:
Answer:
salary after 4 years: 79,000
salary after t years: 69,000 + 2,500t
Step-by-step explanation:
2500 x 4 = 10,000
add 10,000 to 69,000
PLEASE HELP BCS MY TEACHER KEEPS POSTING HARD STUFF
Answers
Answer:
My estimate is D:21
Step-by-step explanation:
so sorry this answer will be 75% wrong, let me explain how i got this answer
the perimeter of triangle ADE is 12 units
Triangle ABC looks like 2 times the triangle ADE , 12 + 12 = 24 and the closest answer was D: 21
I hope i helped you in some way!
Answer:
D.21
Step-by-step explanation:
AC=8
AB=8
BC=5
Add all the sides
=21
A cars gas mileage refers to its rate in miles traveled per gallon of gas. Kara's family is thinking about renting a camper that can travel 3½ miles on ⅓ gallon of gas. Kara wants to know the gas mileage of the camper.
Which complex fraction represents the campers gas mileage in miles per gallon?
1/3 over 7/2
1/2 over 1/3
3 over 1/3
7/2 over 1/3
Which division expression represents the campers gas mileage in miles per gallon?
1/3 ÷ 7
1/3 ÷ 7/2
7/2 ÷ 3
7/2 ÷ 1/3
Answers
Answer: First question answer is 7/2 over 1/3
Second answer is 7/2 divided by 1/4
Step-by-step explanation:
Answer: First question answer is 7/2 over 1/3
Second answer is 7/2 divided by 1/3
Step-by-step explanation: