The cosine of an angle a is 0.8. what is the value of sin (a)

Answers

Answer 1
Cosine is adjacent side over hypotenuse
Sine is opposite side over hypotenuse
You need 2 values to solve this.

Related Questions

Can you create a data set which contains median=6 and mode=4?​

Answers

1, 4, 6, 9, 15, 4, 3, 12, 11

Answer:

hey!

Step-by-step explanation:

You just found a coupon for 35% off! what is 3 the new price of the shoe before taxes?

Answers

The new price of the shoe before taxes will be $ 35.75.

What is the percentage?

The quantity of anything is stated as though it were a fraction of a hundred. A quarter of 100 can be used to express the ratio. Per 100 is what the term percent signifies. The symbol 'percent' is used to symbolize it.

It cost Nike $55 to make the "Kyrie 5".

You just found a coupon for 35% off.

Then the new price of the shoe before taxes will be

⇒ (1 - 0.35) x 55

⇒ 0.65 x 55

⇒ $ 35.75

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Question 1 of 42
Which of the following is the domain and range that represents the function
F(x), given the mapping diagram of the inverse of F(x) below?
2
NO 00
4
3
2
1
6
8
2-
No00
هم نه ليا ده
6
2.
3
4.
8
O A.
2.
4
3
2
1
NW
6
8
B.

Answers

The option A is showing the domain ans the range of the function F(x) as inverse of F(x).

What is inverse function?

In mathematics, the inverse function of a function f (also called the inverse of f) is a function that undoes the operation of f. The inverse of f exists if and only if f is bijective, and if it exists, is denoted by [tex]{\displaystyle f^{-1}.}[/tex]

Here in the graph we can see that the option A has the clear range of the function.

[tex]2------- > 1\\4------- > 2\\6------- > 3\\8------- > 4[/tex]

Hence the option A is showing the domain ans the range of the function F(x) as inverse of F(x).

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PLEASE HELP ME WITH THIS QUESTION!!!

Answers

9x²+3x-1=0

D=b²-4ac

= 3²-4×9×-1

=9+36

=45

x1= (-b+VD)/2a

= (-3+V45)/2×9

= (-3+3V5)/18

=(-1+V5)/6

x2=(-b-VD)/2a

=(-3-3V5)/18

=(-1-V5)/6

Please help!! Giving Brainleist!

Answers

Answer: 30

Step-by-step explanation:

Bc all the numbers are near 30

CAN I PLEASE HAVE BRAINLIEST ✨

Can someone say the answer to this question with steps?
¬

Answers

Answer:

729

Step-by-step explanation:

HELP ASAP PLSSSSSSSSS

(image is below)
A scatter plot with a line is shown below:

Graph shows numbers from 0 to 10 at increments of 1 on the x axis and number s from 0 to 15 at increments of 1 on the y axis. Scatter plot shows ordered pairs 0, 1 and 1, 1 and 2, 3 and 3, 6 and 4, 6 and 5, 8 and 6, 9 and 7, 10 and 8, 12 and 9, 13 and 10, 15. A line joins ordered pairs 0, 0.5 and 10, 14.8.

Which statement is most likely correct about the line?

It can be a line of best fit because it is closest to most data points.
It can be a line of best fit because it passes through all the data points.
It cannot be a line of best fit because it does not pass through all the points.
It cannot be a line of best fit because it does not pass through the first and last points.

Answers

Answer:

Option 1

Step-by-step explanation:

The statement which is most likely correct about the line is :

It can be a line of best fit because it is closest to most data points.Option 1

What two operations would you use to solve the equation b/2+5=-7

-multiplication
-addition
-subtraction
-division

Answers

okay so I simplified which got me
1/2b + 5 = -7
then subtracted 5 first
1/2b = -12
then multipled both sides by 2
b = -24
so subtraction and multiplication

find the perimeter and the area of the figure

Answers

Answer:

area=112

perimeter=56

Which expression could represent the phrase shown? (1 point)

"Subtract 2 from 6, then divide by 3"

Group of answer choices

3 ÷ 6 − 2

3 ÷ (2 − 6)

(2 − 6) ÷ 3

(6 − 2) ÷ 3

Answers

Answer:

(6-2)÷3=1

this is the answer

follow me :)))

A(2,-3), P(2,9)Find the slope of the line through the pair of points

Answers

Answer:

Step-by-step explanation:

(9 + 3)/(2 - 2)= 12/0= undefined

Connor got to the beach at 9:58 A.M. He hunted for seashells, played in the waves, ate lunch, watched the birds dive in the water, and built a sand castle. He left the beach at 5:26 P.M. How long was he at the beach?

Answers

Answer:
7hours 28 minutes
Step-by-step explanation:

find x so that x+3, 2x+1, and 5x+2 are consecutive terms of an arithmetic sequence

Answers

Answer:

x = -3/2

Step-by-step explanation:

x + 3 + d  = 2x + 1              First term plus common difference = 2nd term

x -2 = d

x + 3 + 2d = 5x+2              First term + 2 d = third term    re-arrange:

4x-1 = 2d                            sub in the definition of d from above

4x -1 = 2 (x-2)

4x-1 = 2x-4

2x = -3

x = -3/2

If x+3, 2x+1, and 5x+2 are consecutive terms of an arithmetic sequence then x is -3/2.

What is Sequence?

Sequence is an enumerated collection of objects in which repetitions are allowed and order matters.

The sequence in which consecutive terms will have common difference is called as Arithmetic sequence.

x+3, 2x+1, and 5x+2

The common difference between first term and second term

d=2x+1-x-3

d=x-2

The common difference between second term and third term

5x+2-2x-1=d

3x+1=d

Now plug in d value

3x+1=x-2

Subtract x from both sides

3x-x=-3

2x=-3

Divide both sides by 2

x=-3/2

Hence, if x+3, 2x+1, and 5x+2 are consecutive terms of an arithmetic sequence then x is -3/2.

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This railway car is 3.2 m in diameter and 17.2 m long. Calculate its surface area.
A railway car is a cylinder.
Estimate the cost of painting the outside of the railway car, if a can of paint covers an area of 40 m2 and costs $35.

Answers

Answer:

answer is 151.3575 dollars.

You need a loan and your friend, Joey, will lend you the $1250 you need. He has you sign a promissory note for four years with an annual simple interest rate of 5.5%. What is the total amount that you will pay Joey at the end of the four years?

$1525
$4225
$2750
$275

Answers

Answer:

$1525

Step-by-step explanation:

5.5% out of $1250= 68,7568,75 x 4 (years) = 2751250 + 275 = 1525

John paid $34 for two algebra and three geometry books. he paid $36 for three algebra and two geometry

Answers

Answer:

Each geometry book costs $6, each algebra book costs $8.

Let a=cost of one algebra book and g=cost of one geometry book. We have:

2a + 3g = 34-------->6a + 9g = 102

3a + 2g = 36-------->6a + 4g = 72

-------------------

5g = 30

g = 6

2a + 3(6) = 34

2a + 18 = 34

2a = 16--->a = 8

Question: John paid $34 for two algebra and three geometry books. He paid $36 for three algebra and two geometry books. What is the cost of each book?

Answer: The cost of each algebra book is $8 and the cost of each geometry book is $6.

Step-by-step explanation:

a= algebra book cost

g= geometry book cost

Here's what we know:

2a + 3g = 34 (the 2 alg and 3 geo comes to $34)

3a + 2g = 36 (the 3 alg and 2 geo comes to $36)

This is a classic elimination method problem. I suggest that we multiply the first equation by -2 and the second by 3. This way, we can eliminate the variable g and still keep the other parts of the problem in the positive range:

-4a - 6g = -68

9a + 6g = 108

-------------------

5a = 40

Divide by 5:

a = 8

Now to solve for g:

2 * 8 + 3g = 34

16 + 3g = 34

3g = 18

g = 6

check (by using the second equation):

3 * 8 + 2 * 6 = 36

24 + 12 = 36

Select all right angles

Answers

Answer:

The right angles are B,D,E,and F

Does anyone knows this? I need help. Please explain​

Answers

Answer:

you can put a point on (0,1) and (-1,0) and put a line through the two points

Step-by-step explanation:

The following data points represent the number of quesadillas each person at Toby's Tacos ate.
Sort the data from least to greatest.

0,0, 1/2, 1/2, 1/4, 1, 1, 1, 5/4, 2, 2.

What is the interquartile range of this data?β

Answers

The interquartile range for the given data is 1 quesadilla.

What is the interquartile range?

The interquartile range is a measurement of a data set's "middle fifty." A range is a measurement of where a set's beginning and end are located.

To get the interquartile range, we must know the first and third quartiles. To find those, we need to know the median of the data.

There are 11 data points, so we can cross out 5 numbers on the left and cross out 5 numbers on the right. That leaves a median of 1.

Since we know the median is 1, we can find the first quartile by finding the median of the following numbers:

0, 0, 1/4, 1/2, 1/2  (any number less than 1).

There are five numbers, so cross out two numbers from the left and cross out two numbers from the right. We are left with the first quartile of 1/4.

Now that we have the first quartile, we need to find the third quartile. Since the median was actually the first "1" in the data set, the third quartile will be the median of the numbers to the right of that "

1: 1, 1, 5/4, 2, 2.

Cross out the leftmost two numbers, and cross out the rightmost two numbers. We are left with the third quartile of 5/4.

Now that we have both the third and first quartiles, we can find the interquartile range! The IQR is calculated by finding the third quartile minus the first quartile.

5/4 - 1/4 = 4/4 = 1.

Therefore, the interquartile range is 1 quesadilla.

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A fruit company delivers its fruit in two types of boxes: large and small. A delivery of 5 large boxes and 3 small boxes has a total weight of 135 kilograms. A delivery of 7 large boxes and 9 small boxes has a total weight of 255 kilograms. How much does each type of box weigh?

Answers

Answer:

Small box = 9 Large box = 27

Step-by-step explanation:

135 divided by 5 = 27. 27 divided by 3 = 9

Repeat same process for second half of the equation.

a girl exercises every day for half an hour how many minutes in total for over 5 days

Answers

Answer:

150 minutes

Step-by-step explanation:

30 × 5 = 150 minutes

Express tan C as a fraction in simplest terms.

SOMEONE PLEASE HELP ME ILL GIVE YOU BRAINLIST ANSWER

Answers

Answer:

[tex]\sf \tan(C)=\dfrac{3}{4}[/tex]

Step-by-step explanation:

First, find the missing side length (DE) by using Pythagoras' Theorem:

a² + b² = c²  

(where a and b are the legs, and c is the hypotenuse, of a right triangle)

⇒ 36² + DE² = 45²  

⇒ DE² = 45² - 36²

⇒ DE² = 729

⇒ DE = √729

⇒ DE = 27

Tan trig ratio

[tex]\sf \tan(\theta)=\dfrac{O}{A}[/tex]

where:

[tex]\theta[/tex] is the angleO is the side opposite the angleA is the side adjacent the angle

Given:

[tex]\theta[/tex] = CO = DE = 27A = 36

Substituting the given values into the formula:

[tex]\implies \sf \tan(C)=\dfrac{27}{36}=\dfrac{3}{4}[/tex]

Answer:

3/4

Step-by-step explanation:

Finding the missing side by applying the Pythagorean Theorem :

a² + b² = c²a² = c² - b²a² = (45)² - (36)²a² = 2025 - 1296a² = 729a = 27

Finding tan C :

opposing side of ∠C / adjacent side of ∠CDE / CD27/363/4

Help please thank you!

Answers

Answer:

Here is the answer...hope it helps

Find the area of the green triangle

Answers

Answer:

16 ft^2

Step-by-step explanation:

The area of a triangle is calculated by multiplying its height and base then dividing it by 2

Height of this triangle is given as 4ft

the base is 8ft

4*8/2 = 16 the area is given is square units so the answer is 16 ft^2

How would you write this expression as a sum or difference?

Answers

The provided log can be written as sum of (1/5)log₃(x) + log₃(y) after using the log property.

What is a logarithm?

It is another way to represent the power of numbers, and we say that 'b' is the logarithm of 'c' with base 'a' if and only if 'a' to the power 'b' equals 'c'.

[tex]\rm a^b = c\\log_ac =b[/tex]

We have:

[tex]= \rm log_3(\sqrt[5]{x} . y)[/tex]

As we know:

log(mn) = logm + logn

logmⁿ = nlogm

[tex]= \rm log_3({x^{\dfrac{1}{5}}} . y)\\\\= \rm log_3({x^{\dfrac{1}{5}}} )+log_3 (y)\\\\= \rm \dfrac{1}{5}log_3({x^{}} )+log_3 (y)\\\\[/tex]

Thus, the provided log can be written as sum of (1/5)log₃(x) + log₃(y) after using the log property.

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ANSWER QUICK ILL GIVE BRAINLIEST
A researcher posts a radio advertisement offering $35 in exchange for participation in a short study. The researcher accepts the first eight people who respond to the advertisement. Which of the following statements is true about the sample? It is a valid sample because the first eight people were selected to participate. It is not a valid sample because it is not a random sample of the population. It is a valid sample because money was offered to participants. It is not a valid sample because it is only a short study.

Answers

Answer: Choice B

It is not a valid sample because it is not a random sample of the population.

Explanation:

The researcher should have randomly selected the participants, either by picking names out of a hat, using a random number table, or some kind of computer software to pick the names. Letting the first 8 people form the sample is very likely not representative of the population at large. We have a lot of bias here. Therefore, this is not a valid sample.

[tex]\huge\color{yellow}\underline \colorbox{violet} {\color{red}{QUESTION}}[/tex]​

Answers

Answer:

21.27 cubic meters

22.30 cubic meters

Step-by-step explanation:

We find volume by multiplying height, width, and length.

21.

3x3x3=27 cubic meters

22.

5x2x3=30 cubic meters

Answer:

    21. 27 cubic meters

   22. 30 cubic meters

Step-by-step explanation:

Question 21

Volume = length × width × heightVolume = 3 × 3 × 3Volume = 27 cubic meters

Question 22

Volume = 5 × 2 × 3Volume = 30 cubic meters


Which values complete the function? f(x)=_(x-_)(x+_)

Answers

Answer:

the answer is b

Step-by-step explanation:

just took the test

Answer:

Step-by-step explanation:

-1

3

4

b) Your father uses text messaging to communicate with his employees. If he sends an
average of 19 text messages each day, how many more text messages does he
send than you? Write an equation and solve for the unknown value. (2 points)

Answers

Answer:

father sends 7 more

19-12=7

PLSS ANSWER!!!
In the circle, O is the center. The radius of the circle is 6 feet. Find the area of the shaded
sectors. Round to the nearest hundredth

Answers

12.57

Step-by-step explanation:

Area = πr²

40/360 × 22/7 × 36

1/9 × 22/7 × 36

(22 × 4)/7 = 12.57

Other Questions
In the 1800s mass production led to In Syria, which of the following statements best explains the reaction of the Saud family towards a civil unrest?A) the United Nations pushed for Democratic elections in SyriaB) the sides agreed to relinquish power and phrasesC) the Assads tried to Stamp Out citizens' rebellionsD) the United States removed the Assads from Power In your own words define, The Holocaust Triangle ABC is transformed to form triangle ABC.A is at (3, 1), B is at (1, 8), and C is at (7, 2).Which transformation happened to ABC to form ABC?Drag and drop the the correct answers into each box to complete the sentence. ABC____, _____ is Response area Response area to form ABC .Options:1. Rotated Clockwise2. Translated3. Dilated4. Reflected5. 90 about the origin6. 180 about the origin7. 270 about the origin8. across the x-axis9. across the y-axis10. across the line y = x11. 1 unit right 2 units down12. 2 units right 1 unit down13. 4 units left 3 units up14. by a factor of 215. by a factor of 316. by a factor of 5 Choose the correct form of the possessive adjective to complete the sentence, keeping in mind that the subject and the possessor are the same. 1. Tienes cuatro clases en UNM, no? ____ clases son difciles?A. SuB. TusC. NuestraD. Mis Which statement would most likely reflect the reason ancient mythologies are still so much a part of our culture today?Ancient myths seek to understand aspects of the world we still cannot comprehend today.Ancient myths explore the nature of humanity and address questions of life and death.Ancient myths are full of violence and passion which people enjoy.Ancient myths are told in a story format and are therefore easy to read. which sentence should be included in the summary between sentences 1 and 2 Only nine out of the original thirteen colonies had to ratify the U.S. Constitution in order for it to take effect. What is this ratio, nine to thirteen, rounded to the nearest tenth 25. Find the area of the trapezoid. Leave your answer in simplest radical form. The figure is notdrawn to scale.12 cm6 cm452 cm084 cm96 cm72 cm108 cm 2. What is evolution? Question 1(Multiple Choice Worth 4 points)(13.07 MC)Madge leaves her home at 8:05 to go to school. The drive takes one third hour each way. If she is at school for 7 hours, what time does she arrive home? 3:45 3:25 3:15 3:05 The food store sold 88 ice cream cakes in June. If it would sell 25% more ice cream cakes in July, how many more ice cream cakes would they sell in July than in June? The population of a city was 60,000 in 2015. In 2016, the population of the city was 63,000. The percent increase in the population from 2015 to 2016 was the same as it was from 2016 to 2017. What was the population of the city in 2017? Please help me and hurry . Take 400ml milk, curd, four small clean jars with lids labelled A, B, C and D. Pour about 100 ml of lukewarm boiled milk into each jar. Add a teaspoon of curd to jar A and D. Place jar D in a refrigerator. Place jars A, B and C in a warm place. Observe the jars after four to five hours and answer these questions.i) What do you see in jars A, B and C? ii) Why did the milk in jars B and C not set into curd?iii) What happened in D? Can you say why? Angles around a point Grade 8 What should jason do when rob asks him if he wants to go to the park? check all that apply. tell rob that the location he is going to is dangerous and should be avoided stop talking to rob to diffuse any sort of confrontation with rob or mike ask rob for more information and details about what he plans to do with his cousin tell rob no, but suggest that he stay away from drugs and alcohol if he chooses to go offer rob another activity to participate in, such as going to the movies instead What is the surface area for a rectangular prism with the height of 6 inches, width of 8 inches, and the length of 4 inches Please someone answer ASAP Help me plsssssssssssss