Is this right?
1. Given a right triangle ABC, find the following trigonometric ratios with sides AB = 6, BC = 8 and AC = 10 units. Hint: draw and label your triangle.
a) sin A = 0.13
b) cos A = 0.99
c) tan A = 0.02
d) sin C = 0.01
e) cos C = 0.99

2. Looking back at question 1,
a) which vertex has the right angle? How do you know? B has a vertex. I know this because angle A and and C connect to angle B, and angle B it the corner of a right angle.
b) what do you notice about sine and cosine of complementary angles? The sine of A is different from the sine of C, and the Cosine of A is the same as the cosine of C

Answers

Answer 1

Answer:

Q1.

AC is the greatest side, therefore is hypotenuse. AB and BC are legs.

B is 90 deg as the two legs cross at this point.

Ratios:

sin = opposite / hypotenusecos = adjacent / hypotenusetan = opposite / adjacent

BC is opposite to A and adjacent to C

AB is adjacent to A and opposite to C

sin A = cos C = 8/10 = 4/5cos A = sin C = 6/10 = 3/5tan A = cot C = 8/6 = 4/3tan C = cot A = 6/8 = 3/4

Q2.

a) Answered above

b) Answered above


Related Questions

On this sailboat the measure of angle A is 46 degrees and the measure of B is 51 degrees . What kind of triangle is this?
PLS PLS HELP ASAP

Answers

Answer:

Scalene

Step-by-step explanation:

The third angle must be 83 degrees because all interior angles of a triangle add up to 180 degrees. It must be a scalene triangle because all angles are different therefore the lengths are aswell.

Answer:

acute

Step-by-step explanation:

3 Triangles ABC and DEF shown in the diagram
are similar.
In triangle ABC, mZA = 64°.
In triangle DEF, m_F= 73º.
What is the measure of ZG?
Answer: mZG=

Answers

Answer:

137

Step-by-step explanation:

Kirk earns $16 for each hour of dog walking. After a total of 3 hours of walking dogs, how
much money will Kirk have earned?

Answers

Answer:

48

Step-by-step explanation:

A (1,4) B (-2,3) C (-4,5) 3 units right 4 units down

Answers

Step-by-step explanation:

can you send a picture so we can see at least?

Darlene earns $12.10/h. She works for 33 h one week. How much did she earn?

Answers

Answer:

399.30

Step-by-step explanation:

12.10 times 33 hours equals 399.30

Answer: 399.3

Step-by-step explanation: 12.10 x 33 = 399.3

pls help. “Find the Surface Area”

Answers

Answer:

The New Deal was a series of programs, public work projects, financial reforms, and regulations enacted by President Franklin D. Roosevelt in the United States between 1933 and 1939

Write the following as an inequality.
w is greater than -9 and less than or equal to 5
Use w only once in your inequality.

Answers

Answer:
-9 < w ≤ 5

Explanation:
W is bigger than -9 so the symbol has the bigger end towards the W.
W is also less than or equal to 5 so the smaller end of the sign is towards the W.

What is angle A sum 1 plz I need this quick

Answers

Answer:

37 degrees

Step-by-step explanation:

find x of the triangle

Answers

Answer:

The angle is 90 degrees

Step-by-step explanation:

Is that what ur asking?

Answer: 15.199

Step-by-step explanation:

Using the Pythagorean theorem, we know that a²+b²=c²

In this case, we know that c is 16, and that b is 5.

We can rearrange the equation so that it becomes a²=c²-b²

a²=16²-5²

a²=256-25

a²=231

√a²=√231

a=15.199

Which one should I choose my brain cells dont exist at this point.

Answers

The answer is the second options

2x^4=9x^2 solve by factoring

Answers

Step-by-step explanation:

2x⁴ = 9x²

2x⁴ - 9x² = 0

x²(2x² - 9) = 0

Either x² = 0 or 2x² - 9 = 0.

When x² = 0, x = 0.

When 2x² - 9 = 0, x² = 9/2, x = ± 3/√2.

Hence the solutions are

x = 0, x = 3/√2 and x = -3/√2.

If x – 9 is a factor of x2 – 5x – 36, what is the other factor?

Answers

Answer: (x+4)(x−9)

Step-by-step explanation:

Answer:

(X - 9) is one factor

(X + 4) is the other factor

Step-by-step explanation:

You can factor polynomials with guess work or with polynomial division

To factor using guess work search for a number that will multiply with -9 to equal -36 and add with -9 to equal -5.

In order for -9 to add with another number and equal -5 you need to add 4 to it. And because -9 will multiply with 4 to equal -36 as well, 4 is confirmed to be the other factor. You can write out the factor as (x + 4)

express the following quantities as ordinary decimal numbers:

The wavelength of light is 9 x 10-7m​

Answers

The answer I got is 90x -7m I hope this is right if not let me know so I can fix it
I needed that answer too thanks

What's 100 divided by 42

Answers

Answer:

Can you help me? It's worth one hundred points. https://brainly.com/question/21042823

Step-by-step explanation:

2.38095238095

Someone help me pls.

Answers

Answer : C




Step-by-step explanation :
Base angles in an isosceles trapezium are equal
m2x =x +27
2x-x=27
x =27

What does 31/2 gal equal to in cups

Answers

Answer:

248 cups

Step-by-step explanation:

I hope this helps! have a good day:)

Molly's hair was 20 inches long. Three years later it was 53 inches long. What was the percent increase, to the nearest hundredth, of Molly's hair length.

Answers

Find how much it grew:

53 - 20 = 33 inches.

Divide the amount it grew by the original length

33/20 = 1.65

Subtract 1:

1.65 - 1 = 0.65

Multiply by 100 for percent:

0.65 x 100 = 65%

The percent increase is 65%

Circle A has center of (6, 7) and a radius of 4, and circle B has a center of (2, 4) and a radius of 16. What steps will help show that circle A is similar to circle B?

Translate circle A using the rule (x + 4, y + 3).
Rotate circle A 45° about the center.
Dilate circle A by a scale factor of 4.
Reflect circle A about the origin.

Answers

Answer:

c took quiz

Step-by-step explanation:

Circle A can be made similar to circle B by dilating circle A by scale factor 4.

Circles can be made similar by performing transformations such as dilations, translation, etc.

The given parameters are:

Circle A

[tex](x,y) = (6,7)[/tex] --- center

[tex]r=4[/tex] --- radius

Circle B

[tex](x,y) = (2,4)[/tex]  --- center

[tex]r = 16[/tex] --- radius

To do this, we simply make both circles have the same radius.

Given that:

[tex]r_A=4[/tex] --- radius of A

[tex]r_B = 16[/tex] --- radius of B

Dilating the radius of A by 4 will make both circles have the same radius.

i.e.

[tex]R = r_A * 4[/tex]

[tex]R = 4 * 4[/tex]

[tex]R = 16[/tex]

Now, the new radius of A is 16; same as B

Both circles now have the same radius, means that the circles are similar.

Read more at similar shapes at:

https://brainly.com/question/2859427

Select the correct answer from the drop-down menu.
-6
-5
B 4 5
6 7
-2
.
x^4 - 2x^2 + 5x + 6
LO
-6
x^3 - 2x^2 - 5x + 6
x^3 - 2x^2 + 5x + 6
-x^4 - 2x^2 + 5x + 6
The function shown in the graph is fx) =

Answers

X^3-2x^2-5x+6
From the shape, you can immediately tell it’s one of the x^3 functions. Then I just put both in my calculator and looked for which one matched

FIND PERIMETER HELP PLS

Answers

Hey hmu if u Want help

someone pls help i will make brainliest IF RIGHT ANSWER! !!1 !!1 !

Answers

Answer:

Neither

Step-by-step explanation:

Triangles are similar if their angles are the same, and if the sides are changed by a proportional ratio. The angles for FED and ZXY are not the same. Therefore, they are not similar

Answer:

D. Neither

Step-by-step explanation:

Similar triangles are scaled versions of each other. Two triangles that are similar will have congruent angles. Hence, to find a triangle that is similarto ABC, the angles of the other triangles will be congruent to the given angles of ABC. As one can see, no other triangle has congruent angles to ABC, and hence the answer is D, neither of the two triangles are similar to ABC.

help asap for school

Answers

The answer is A for this question

Work out the surface area of this cylinder.
Please help.

Answers

Answer:

1846.32

Step-by-step explanation:

v = 3.14r^2h

3.14 (49)12

1846.32

hope this helps

Answer:

total surface area of cylinder=2πr(r+h)=2π×7(7+12)=14π×19=14×22/7×19=836cm²

Debra borrowed 5,000 from a bank for 6 years and was charged simple interest. The total interest that she paid on the loan was 2100 . As a percentage, what was the annual interest rate of her loan?

Answers

Answer:

7% was the interest rate

7% is the interest rate

There are 272 people in an audience. The ratio of adults to children is 5 : 3. How many are children? (please answer)

Answers

Answer:

There are 102 children

Step-by-step explanation:

Let us solve the question

∵ There are 272 people in an audience

∴ The total number of people = 272

∵ The ratio of adults to children is 5: 3

→ Find the sum of the two parts of the ratio

∴ The sum of the parts of the ratio = 5 + 3 = 8

→ By using the ratio method

→  Adults:  Children:  People

→  5        :   3            :  8

→  A        :   C           :  272

→ By using the cross multiplication

C × 8 = 3 × 272

∴ 8C = 816

→ Divide both sides by 8

C = 102

∵ C represents the number of children

There are 102 children

Help me with my homework, please. \
y= -3/4x + 9

Answers

Answer:

x=12

Step-by-step explanation:

hope this helps

The expression (x-4)² is equivalent to... (btw this is about polynomials and all that)

Answers

Answer:

the answer is 8-2x

Step-by-step explanation:

PLZZZZZZZZZZZ HELP
In a recent year, 42% of all college students were enrolled part-time. If 8.9 million college students were enrolled part-time that year, what was the total number of college students?
Round your answer to the nearest million.

Answers

Answer:

A.what was the total number of college students?

B.42%,8.9

C.multiplacation

D. 0.42x8.9=N

E. 0.42×8.9=3,738,000

F.Round your answer to the nearest million.

4,000,000

G. 4,000,000 Is the total number of collage student

I'm just A Beginner。◕‿◕。

Answer:

21 million college students

Which ordered pair is a solution to the equation y = -6x?
(12, -2)
(3,-9)
-10.60)
(18, -3)

Answers

Answer:

(-10; 60)

Step-by-step explanation:

y = -6x

(12; -2)

-2 = -6 · 12

-2 = -72 - no

(3; -9)

-9 = -6 · 3

-9 = -18 - no

(-10; 60)

60 = -6 · (-10)

60 = 60 -  yes

(18; -3)

-3 = -6 · 18

-3 = -78 - no

Is (2, 10) a solution to this system of equations?
y = 4x + 2
y = x + 8

Answers

Answer:

Yes, (2, 10) is a solution to this system:

y = 4x + 2

y = x + 8

Step-by-step explanation:

When graphed, the two equations cross at (2,10) making it a solution.

Answer:

Yes

Step-by-step explanation:

If y=4x+2 and y=x+8, then 4x+2=x+8

4x+2=x+8

4x=x+6

3x=6

x=2

Plugging this into the original equation "y=x+8", we obtain the result that y=10.

This means, (2, 10) is a solution  to the system.

Let me know if this helps!

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