If cos x= sin(20 + x)° and 0° < x < 90°, the value of xis

Answers

Answer 1

Answer:

draw a right angle triangle

Step-by-step explanation:

Let one of the angles be A  

cos A = sin (90-A)  

90 - x - 20 = x  

2x = 70  

x = 35 degrees


Related Questions

Five cats each had 5 kittens. The cats and kittens each had 5 fleas. Each flea had 5 tiny spiders on it. How many legs are there all together?

Answers

Answer:

5 cats times 4 legs = 20

5 kittens times 4 legs =20

5 fleas times 5 cats = 25

5 fleas times 5 kittens = 25

5 tiny spiders times 5 fleas = 25

20+20+25+25+25= 115

115 legs altogether

Answer:

yup 115 legs

Step-by-step explanation:

This object is made with six identical cubes. Each cube edge is 5 inches long. What is the surface area of the object in square inches

Answers

Answer:

Cube

Solve for surface area

A=150in²

a Edge

5

in

find c and round to the nearest tenth

Answers

Answer:

Step-by-step explanation:

<C = ?

a = 22

b = 20

c = 18

Formula

c^2 = a^2 + b^2 - 2*a*b* cos(C)

Solution

18^2 = 22^2 + 20^2 - 2*22*20*cos(C)

324 = 484 + 400 - 880*cos(C)

324 = 884 - 880*Cos(C)

-560 = - 880 * cos(C)              

-560 / - 880 = cos(C)

0.63636   =  cos(C)

C = cos-1(0.63636)

C =50.48

Answer:

20

Step-by-step explanation:

Tyler is observing the ascent of a
steel beam being lifted by a crane
from a position about 250 feet
away. What function models the
height h in feet of the beam as a
function of the angle of inclination
from Tyler's position to the steel
beam?

Answers

Answer:

Step-by-step explanation:

tanθ = h/250

h = 250tanθ

The height h in feet of the beam as a function of the angle of inclination from Tyler's position to the steel beam is h = 250 tanθ feet

What is angle of inclination?

"The angle inclination of a line is the angle formed by the intersection of the line and the x-axis."

What are trigonometric functions?

"The trigonometric functions are real functions which relate an angle of a right-angled triangle to ratios of two side lengths."

We have

Adjacent side = 250 feet

From the figure,

We can write trigonometric function

Tanθ = [tex]\frac{AB}{BC}[/tex]

Tanθ = [tex]\frac{h}{250}[/tex]

h = 250 tanθ feet

Hence, The height h in feet of the beam as a function of the angle of inclination from Tyler's position to the steel beam is h = 250 tanθ

Learn more about angle of inclination and trigonometric functions here

https://brainly.in/question/1013629

https://brainly.in/question/6826052

#SPJ2

Find the area of the parallelogram.
22 mm
11 mm

Answers

Answer:

I have no idea

Step-by-step explanation:

Answer:

242

Step-by-step explanation:

A=bh

A=11x22

A=242 mm

someone do this please help

1. Write the ratio below as a decimal (per one). Round your answer to the nearest hundredths place.


2 weeks to 46 days

2,Professor Ivy records the following scores on her final: 35, 48, 48, 52, 69, 72, 81, 88, 92. What is the median score for the final?

3. Professor Ivy’s students have the following scores on her Exam. Find the mean value, round to the tenths place.

76 88 67 88 91 69 45 92 52 38 98

Answers

Answer:

0.30 for answer 1

65% for answer 2

73.0% for answer 3

Hope it helps

(a) Calculate the mean, median, and mode of the data.
If your answer is not a whole number, enter it as number rounded to the nearest integer.
Mean =
60
Median =
60
Mode = 61
(b) What measure of central tendency, if any, best represents the data?
Mean
Median
Mode
All three represent the data equally well

Answers

Answer:

Step-by-step explanation:

what you see mode mean median;what i see the moleecur stricture of 4dsn_eix+dwk x sjsw39i4

I think it would be mean as it gives you the average answer, most likely being the most accurate.

Please I need this right now
Write a proportion that would help answer the question (use x as your variable)

What number is 80% of 65?

Answers

Answer:

The answer is x = 81.25

Step-by-step explanation:

The proportion used is 65/x = 80%/100%

Megan’s TV had a base price of $189 and the sales tax was 6.88%. Over the next four years, the TV consumed an average of $0.06 of electricity every day. It also needed repairs twice, costing $29 each time. After four years, Megan got a new TV. What was the lifetime cost of Megan’s TV? (Remember that one in every four years is a leap year.)

a.
$357.68
b.
$318.66
c.
$347.66
d.
$351.65

Answers

Answer:

Step-by-step explanation:

price of tv and sales tax = 1.0688×$189 = $202.0032 ≅ $202.00

4 years = 3×365 days + 366 days = 1461 days

cost of electricity = 1461 days × $0.06/day = $87.66

lifetime cost = purchase price + electricity + repairs

= $202.00 + $87.66 + 2·$29

= $347.66

Answer:

347.66 is your answer

Step-by-step explanation:

glad to help btw the answer is on edge 2021.

I need to know which numbers go in what sections.

Please help!!

Answers

To complete this, just plug in the numbers for the variables it says it is to the equation above. For example, the first one is X = -4. Put -4 into the equation for X and solve.

y = 6(-4) + 8
y = -24 + 8
y = -16

So the first blank would be -16. Repeat this process for the next steps.


Simplify -6X - 3 + 2x +1

Show Your Work

Answers

The answer would be -4x - 2
You have to collect like terms
-4 x -3 + 1
Explain the sum
-4 x -2
Then the solution would be = -4x -2

A: l = h - 7.0
B: l= 9/16h
C:h = 9/16L
D:h = L - 7.0

Answers

Answer:

A

Step-by-step explanation: The answer is A

Find the distance between (6, 0) and (10, 3).
a 5 units
b 20 units
C 50 units
d None of the above


does anyone know this? geometry help pls

Answers

A 5 units I believe

Answer:

A

Algebra For what values of the variables must ABCD be a parallelogram?

B

23. A 2y + 2 B 24. B

(3x + 10)

(8x + 5)º

3x + 6

54°

D

С

D

A

Зу - 9 с

ly+4

Pls help extra points and mark brainlist

Answers

20 + 35x..... z z z z z z z

Answer:

The answer is shown below

Step-by-step explanation:

20+35x

Hope this helps

Simplify (4x^2y)(3xy)(2xy)^3
A. 96x^4y^5
B. 96x^6y^5
C. 24x^4y^5
D. 24x^6y^5

Answers

Answer:

the answer is D

Step-by-step explanation:

hard to explain it with just words and not be able to show you step by step

Charles has his teammates how many hours they practice swimming during the week he recorded his data in the table below and use the shaded columns to calculate the three sample means what is the range of values for the

Answers

Answer:

B or 2, I took this test.

Step-by-step explanation:

Answer:  B

Step-by-step explanation: 2

Factor the polynomial 4x2
24x + 36 completely

Answers

Answer:

Step-by-step explanation:

4(x^2 = 6x + 9)

4(x + 3)(x + 3)

Please please help with this question , you will get 10 points if you answer this question, don’t get bothered with 1 point written in question.

Answers

Answer:

11.7

Step-by-step explanation:

pls follow me and !ark as brainliest and follow me to get free points to all your answer's

Answer:

B (11.7)

Step-by-step explanation:

if you add the whole numbers (4, 4, 3) it would be 11 and then you add the decimal part which is 7 so it would be 11.7

A function, f(x), passes through the point (0,2). Another function is represented by the equation g(x)=x^2−2x−3. What is the y-intercept of g(x) and which function has the greater y-intercept

Answers

Answer:

The y-intercept of function f(x) is 2.The y-intercept of function g(x) is -3.

Therefore, we conclude that function f(x) has a greater y-intercept.

Step-by-step explanation:

The y-intercept of any function can be determined by checking the value of y at x = 0.

Important Tip

A point where the graph meets the y-axis — y-intercept.

Determining the y-intercept of the function f(x)

Given the function f(x) passes through the point (0,2).

It means at x = 0, the value of y = 2

Thus, the y-intercept of function f(x) is 2.

Determining the y-intercept of the function g(x)

Given the function g(x)

[tex]g\left(x\right)=x^2-2x-3[/tex]

substitute x = 0 in the function equation

[tex]g\left(0\right)=\left(0\right)^2-2\left(0\right)-3[/tex]

[tex]g\left(0\right)=0-0-3[/tex]

[tex]g\left(0\right)=-3[/tex]

It means at x = 0, the value of y = -3

Thus, the y-intercept of function g(x) is -3.

Conclusion:

The y-intercept of function f(x) is 2.The y-intercept of function g(x) is -3.

As 2 > -3

Therefore, we conclude that function f(x) has a greater y-intercept.

this equality contains a viable 3(23+18)<6a

Answers

[tex]3(23+18) < 6a \\ 41 < 2a \\ a > 41/2\implies a > 20.5[/tex]

Hope this helps.

Answer: a >41/2

Step-by-step explanation: Step 1: Simplify both sides of the inequality.

123<6a

Step 2: Flip the equation.

6a>123

Step 3: Divide both sides by 6.

6a/6>123/6

a>41/2

List the next 4 multiples for the number 21.

Answers

Answer:

21,42,63,84,105 126,147,168,189, and 210.

I hope this helps.

Write the equation for
Twice a number added to five- and four-tenths is.
the same as the number minus two and nine-denths.

Answers

Answer:

Step-by-step explanation:

Simplify
3x- 2z+- 2z- 4z- 3z

Answers

Answer: hi

The answer will be 3x−11z

Step-by-step explanation:

have a great day ^_^

#2) Can the sides of a triangle have the lengths 1, 3, 1? *
O Yes
O No

Answers

Yes it would be an isosceles triangle

BRAINLIEST only for effort-y answers
In the graph, which vertical line (V) and horizontal line (H) can be used to graph point E?

A) V: x = 2; H: y = –2

B) V: y = –2; H: x = –2

C) V: x = –2; H: y = 2

D) V: x = 2; H: y = 2

Answers

Answer:

A. V: x = 2; H: y = –2

Step-by-step explanation:

you start at 0 and then you have to go right first til you get to 2 then go down til you get to -2

**I got this correct on test also :))

10 POINTS
Which of the following situations can be represented by 145 ?
1. Renee has 14 feet of ribbon to that she will cut into 5 pieces of equal length.
2.Mike has 14 packs of trading cards with 5 in each pack.
3.Rama opens 5 bags of trail mix, which she will split equally into 14 bowls.
4.Payton takes 5 pencils from a box containing 14 pencils.

Answers

1 and 2 are the answers

Answer:

2

Step-by-step explanation:

3. represents 514

4. represents 514

Find the general solution of (x+3)y’=2y

Answers

Answer:

[tex]y=C(x+3)^2[/tex]

Step-by-step explanation:

We are given:

[tex]\displaystyle (x+3)y^\prime=2y[/tex]

Separation of Variables:

[tex]\displaystyle \frac{1}{y}\frac{dy}{dx}=\frac{2}{x+3}[/tex]

So:

[tex]\displaystyle \frac{dy}{y}=\frac{2}{x+3} \, dx[/tex]

Integrate:

[tex]\displaystyle \int\frac{dy}{y}=\int\frac{2}{x+3}\, dx[/tex]

Integrate:

[tex]\displaystyle \ln|y|=2\ln|x+3|+C[/tex]

Raise both sides to e:

[tex]|y|=e^{2\ln|x+3|+C}[/tex]

Simplify:

[tex]|y|=(e^{\ln|x+3|})^2\cdot e^C[/tex]

So:

[tex]|y|=C|x+3|^2[/tex]

Simplify:

[tex]y=\pm C(x+3)^2=C(x+3)^2[/tex]

There are 275 people in a movie theater. Of those, 150 are adults. What is the ratio of
CHILDREN to ADULTS?

Answers

Answer:

270 to 150

Step-by-step explanation:

 

Answer:

children: adult= 5:6

Step-by-step explanation:

no. of children = total - adult

children = 125

ration = 125:150

= 5:6

la picina de Javier se llena con 5 galones de agua.Si cada galón de agua equivale a 3.785 litros cuántos litros se ocupan para llenar la picina​

Answers

Answer:

I don't know your language

Answer:

se llena con 18.925 litros

Step-by-step explanation:

5x 3.785

Golf balls cost $0.90 each at Emma’s Club, which has an annual $25 membership fee. At Wendy & Marilyn’s sporting goods store, the price is $1.35 per ball for the same brand. Where you should buy your golf balls depends on how many you wish to buy. Explain, and illustrate your reasoning by drawing a graph.

Answers

I can give you the equations for the graph. First one would be y = 0.90x + 25 (25 being the y intercept) and the other one would simply be y = 1.35. If you have a graphing calculator like me you can use it when modeling the graph. Hopefully this helps!

Answer:

Gjjjjjjjjjjjjjjjjo

Step-by-step explanation:

Jkk

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