!!! PLEASE HELP ASAP !!!! just fill in the few boxes (serious answers only or i’ll report)

also if you zoom in on the picture, it’ll become clear

!!! PLEASE HELP ASAP !!!! Just Fill In The Few Boxes (serious Answers Only Or Ill Report) Also If You

Answers

Answer 1

Answer:

See explanation

Step-by-step explanation:

sin(α + β) = sin α cos β + sin β cos α

sin(α - β) = sin α cos β - sin β cos α

[tex]\frac{1}{2}[/tex][ sin(α + β) + sin(α - β)] = [tex]\frac{1}{2}[/tex][sin α cos β + sin β cos α + sin α cos β - sin β cos α]

                               = [tex]\frac{1}{2}[/tex][2 sinα cos β]

                               = sin α cos β = [tex]\frac{1}{2}[/tex][ sin(α + β) + sin(α - β)]


Related Questions

5. Put >, <, or = in between
-0.0001701
-0.0001710

Answers

Answer:

-0.0001701 > -0.0001710

Step-by-step explanation:

-0.0001701 is greater than -0.0001710 since it is closer to 0

solve for the following equation
6Y+4 = 4y-2​

Answers

Answer:

y = -3

Step-by-step explanation:

6y +4 = 4y- 2

2y= -6

y= -3

pls Mark as brainliest

The answer is : Y= -3

Brainliest for answer

Answers

Answer:

the answer would be the letter A

1/2+(-5/6)+1/4

-7/12
-1/12
1/12
1 7/12

Answers

Answer:

-1/12

Step-by-step explanation:

3/6 + (-5/6) = -2/6

-2/6 = -4/12

1/4 = 3/12

-4/12 + 3/12 = -1/12

These are the answers.​
But reasons are not given.

Answers

Answer:

Looks like the book has fixed RHS while I have fixed LHS.

Pleaseee brainliest

Answers

Answer:

2√2

Step-by-step explanation:

Answer:

uhhh ok im not 100% sure but i think its

Step-by-step explanation:

2x2 + 6x + 2 = 5x2 + 9x + 3

Answers

Answer:

−3

Step-by-step explanation:

Use the values of a,b, and c to find the discriminant. −3

help please will mark brainliest!
Find the area. Simplify your answer.

Answers

Answer:

If you know what x is then you can add it to 1 multiply that by 7 to get the answer then simplify, since you cannot simplify whole numbers you know that it is a decimal. To simplify a decimal remove the decimal point and reduce the ratio to a ratio of whole numbers. Multiply the numerator and denominator of the ratio in fraction form by a 10, 100, 1000 i.e., a power of ten to eliminate the decimal. Then the fraction is simplified to be in its lowest terms.

Step-by-step explanation:

Two pizza delivery drivers compared the mean numbers of deliveries they completed in one day.

Answers

Answer:

The mean number of deliveries for driver A is less then the mean for driver B by 3 MADs.

Answer:

CAN SOMEONE REMOVE THIS ANSWER.

The question above is what I need to know

Answers

Answer:

a

Step-by-step explanation:

Answer:

angles 1 and 3 are supplementary

Which expression is equivalent to 4 (x + 2)?
6 x
4 (x) + 4 (2)
4 (x) + 4
8x

Answers

The answer is b - 4(x) + 4(2)
The answer is B , 4 (x) + 4 (2).

Find the value of b. A. 14 B. 15 C. 64 D. 289

Answers

Answer:

B) 15

Step-by-step explanation:

8²+b²=17²

64+b²=289

b²=289-64

b²=225

b=√225

b=15

A man orders5 times as many boxes of ballpoint pens as boxes of felt tip pens. Ballpoint pens cost $4.31 per box, and felt tip pens cost$3.44. If the mans order of pens totaled $99.96 how many boxes of each pen did he buy?

Answers

Answer:

76.38

Step-by-step explanation:

x = the number of boxes of felt tip pens

5x = the number of boxes of ballpoint pens

5x*4.41 + x*3.41 = 76.38

Factor 10x2 – 42x – 108.
Question 20 options:

A)

(5x + 9)(x + 6)

B)

2(5x + 9)(x – 6)

C)

(x + 9)(5x – 6)

D)

2(10x – 9)(x + 6)

Answers

Answer:

B

Step-by-step explanation:

You have to know how to factor polynomials.

2(5x^2-21x-54)

2(5x^2-30x+9x-54)

2(5x(x-6)+9(x-6))

2(5x+9)(x-6)

It’s gone be B.(5x +9

show your work (?) please

Answers

2013
Because you move the decimal three places to the right.
OR.
2.013 x 1,000

The pool has a deck that is 9 meters wide on all sides. What is the perimeter of the pool?

Answers

Answer:

36 meters

Step-by-step explanation:

If the pool has 4 sides, and every side is 9 meters you add 9+9+9+9 to get 36 or just multiply 9 x 4.

A sociologist was hired by a large city hospital to investigate the relationship between the number of unauthorized days that employees are absent per year and the distance (miles) between home and work for the employees. A sample of 10 employees was chosen, and the following data were collected.

Distance to Work (miles) Number of Days Absent
1 9
3 6
4 9
6 8
8 7
10 2
12 4
14 3
14 5
18 1

Required:
a. Develop the least squares estimated regression equation used to predict the number of days absent given a certain distance to work.
b. Is there a significant relationship between the two variables? Use α = 0.05.
c. Did the estimated regression equation provide a good fit? Explain.
d. Is the estimated regression equation appropriate and adequate?
e. Are there any outliers in the data? If yes, identify them.

Answers

Answer:

y = -0.43841X + 9.34565

Step-by-step explanation:

Given the data:

Distance to work (x) :

1

3

4

6

8

10

12

14

14

18

Y:

9

6

9

8

7

2

4

3

5

1

The least square estimated regression equtyol obtained using  a linear regression calculator is :

y = -0.43841X + 9.34565

Yes, from the correlation Coefficient value, R which yields - 0.8444, shows they a strong linear relationship exists between the two variables.

The obtained regression equation is appropriate

Please answer this correctly without making mistakes

Answers

(k-j)-6 you don’t need the parentheses

6 foot tall man has a 9 foot shadow at the same time a tree standing next to him as a 30 foot shadow how tall is the tree?

Answers

27 feet? Or 20?
I did 9-7= 3 so 30-3=27
If not 9/7=1.5 so 30/1.5=20

?

The tree is 20 feet tall if the 6-foot tall man has a 9-foot shadow at the same time a tree standing next to him as a 30-foot shadow.

What is a right-angle triangle?

It is a triangle in which one of the angles is 90 degrees and the other two are sharp angles. The sides of a right-angled triangle are known as the hypotenuse, perpendicular, and base.

From the right angle triangle,

The ratio of the man height and his shadow is equal to the tree height(h) and its shadow.

6/9 = h/30

h = 20 feet

Thus, the tree is 20 feet tall if the 6-foot tall man has a 9-foot shadow at the same time a tree standing next to him as a 30-foot shadow.

Learn more about the right angle triangle here:

brainly.com/question/3770177

#SPJ2

A manufacturer makes marbles out of glass, like the diagram shown. each marble must have a radius of 1.25 cm to pass quality control.

What is the volume of glass needed to make each marble, in cubic centimeters? Use 3. 14 for symbol and tecall that for spheres.

Answers

Answer:

7.85 is your answer I do believe

Answer:

THE ANSWER IS 6.54

Step-by-step explanation:

4 Select the correct answer. Solve the system of equations. y= 4x + 5 y = x2 + 12x + 20
A. (-3,-7) (-5,-15)
B. (-3,-17) and (-5,-25) )
C. (-3,-15) and (-5,-7)
D. (3,17) and (5,-15)
need help asap pls​

Answers

Answer: y= 4x + 5 y = x2 + 12x + 20 = y=4  x=0

Step-by-step explanation:

A=1 20

B= 440

C= 120

D= -240

Answer:

B) (-3,-17) and (-5,-25)

Step-by-step explanation:

It is a question that has varied answer.

Answers

Step-by-step explanation:

most questions have valid us answers actually so yeah

Answer:

Multiplication tables

Theres is a 10% chance of rain tomorrow. A spinner with 10 sections is spun to simulate the probability of rain, where spinning a 1 indicates rain. If the results are 3, 6, 1, 8, and 3, then what is the difference in the experimental probability from the simulation and the prediction?

Answers

Answer:

There is a difference of 10%

Step-by-step explanation:

In this situation, the theoretical probability, the probability of something based on logic, is 10%. This means that if the spinner was spun 10 times it would land on 1 once. However, the experimental probability, the probability determined by the results of an experiment, is 20%. This number can be found by finding how many times the spinner actually landed on 1. Out of 5 spins, the spinner landed on 1 once. So the experimental probability is 1/5, which is equal to 20%. Therefore, there is a 10% difference in the prediction and simulation.

Taylor Swift CD’s sell for $10 and Selena Gomez CD’s sell for $15. If a music store sold 18 CD’s and worth $240, how many of each CD did they sell?

Answers

Answer:

ts 24 sg 18

Step-by-step explanation:

Answer: she sold 6 of the Taylor Swift cd’s($10 cd’s) and 12 of the Selena Gomez cd’s ($15 cd’s)

On a certain day, the temperature outside dropped 5 degrees every hour for 4 hours. How much has it dropped after the 4 hours?

Answers

20 degrees.

4 x 5 = 20

Answer:

OKay i did not get it but it should be 96 hours

Step-by-step explanation:

In △ ABC and △ PQR, AB = 5 cm , BC = 6 cm , AC = 8 cm , PQ = 6 cm , QR = 5 cm , PR = 8 cm . Which of the following statements is true ?I


△ ABC ≅ △ QPR

△ ABC ≅ △ QRP

△ ABC ≅ △ RQP

Answers

Given:

In △ABC and △PQR, AB = 5 cm , BC = 6 cm , AC = 8 cm , PQ = 6 cm , QR = 5 cm , PR = 8 cm.

To find:

The correct congruency statement for the given triangles.

Solution:

In △ABC and △PQR,

[tex]AB=QR=5\ cm[/tex]                    (Given)

[tex]BC=PQ=6\ cm[/tex]                    (Given)

[tex]AC=PR=8\ cm[/tex]                    (Given)

All three corresponding sides of both triangles are equal. On comparing both triangle, it is conclude that the corresponding angles of A, B, C are R, Q, P respectively.

[tex]\Detla ABC\cong \Delta RQP[/tex]               (SSS congruency postulate)

Therefore, the correct option is C.

Based on previous research, the standard deviation of the distribution of the age at which children begin to walk is estimated to be 1.5 months. A random sample of children will be selected, and the age at which each child begins to walk will be recorded. A 99% confidence interval for the average age at which children begin to walk will be constructed using the data obtained from the sample of children. Of the following, which is the smallest sample size that will result in a margin of error of 0.1 month or less for the confidence interval?
a. 400.
b. 900.
c. 1,300.
d. 1,600.
e. 2,100.

Answers

Answer:

d. 1,600.

Step-by-step explanation:

We have that to find our [tex]\alpha[/tex] level, that is the subtraction of 1 by the confidence interval divided by 2. So:

[tex]\alpha = \frac{1 - 0.99}{2} = 0.005[/tex]

Now, we have to find z in the Ztable as such z has a pvalue of [tex]1 - \alpha[/tex].

That is z with a pvalue of [tex]1 - 0.005 = 0.995[/tex], so Z = 2.575.

Now, find the margin of error M as such

[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]

In which [tex]\sigma[/tex] is the standard deviation of the population and n is the size of the sample.

Based on previous research, the standard deviation of the distribution of the age at which children begin to walk is estimated to be 1.5 months.

This means that [tex]\sigma = 1.5[/tex]

Of the following, which is the smallest sample size that will result in a margin of error of 0.1 month or less for the confidence interval?

The sample size has to be n or larger. n is found when [tex]M = 0.1[/tex]. So

[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]

[tex]0.1 = 2.575\frac{1.5}{\sqrt{n}}[/tex]

[tex]0.1\sqrt{n} = 2.575*1.5[/tex]

Multiplying both sides by 10

[tex]\sqrt{n} = 2.575*15[/tex]

[tex](\sqrt{n})^2 = (2.575*15)^2[/tex]

[tex]n = 1492[/tex]

So the sample size has to be at least 1492, which means that of the possible options, the smallest sample size is 1600, given by option d.

The sample size should be at least 1492, So the possible options, the smallest sample size is 1600, option D is the correct answer

Based on previous research, the standard deviation of the distribution of the age at which children begin to walk is estimated to be 1.5 months. A random sample of children will be selected, and the age at which each child begins to walk will be recorded. A 99% confidence interval for the average age at which children begin to walk will be constructed.

What is the margin of error?

The margin of error tells you how many percentages points your results will differ from the real population value.

[tex]M=z\frac{\sigma}{\sqrt{n} }[/tex]

We need to find our α level, that is the subtraction from 1 by the confidence interval for the average age divided by 2.

[tex]\alpha = \frac{1-0.99}{2}\\ =0.005[/tex]

Now, we need to find z which is 1-α

[tex]1-\alpha \\=1-0.005\\\rm z=2.575[/tex]

The margin of error M

[tex]M=z\frac{\sigma}{\sqrt{n} }[/tex]

Here, [tex]\sigma[/tex] is the standard deviation of the population.

n is the size of the sample.

So,

[tex]\rm M=z\frac{\sigma}{\sqrt{n} } \\\rm0.1=2.575\frac{1.5}{\sqrt{n} } \\\rm0.1\times\sqrt{n} =2.575\times{1.5}\\\rm\sqrt{n} =2.575\times{1.5}\\\rm(\sqrt{n} )^{2} =(2.575\times{1.5})^{2} \\\rm n=1492[/tex]

Hence, the sample size should be at least 1492, So the possible options, the smallest sample size is 1600, option D is the correct answer.

Learn more about the margin of error here:

https://brainly.com/question/6979326

In triangle ABC, ∠A=120°, a=3, and b=2. Find angle ∠C to the nearest degree.

Answers

Answer:

Step-by-step explanation:

Use Law of Sines to find ∠B.

∠B = arcsin(b·sinA/a) ≅ 35°

∠C = 180°-∠A-∠B = 25°

Milly has a equal number of 20p coins and 50p coins . The value of her 20p coins is £2.80 . Work out the total value of her 20p and 50p coins

Answers

Answer:

£9.80

Step-by-step explanation:

The calculation of the total value is given below:

Provided that that

The value of 20p coins is £2.80

So 1p = £2.80 ÷ 20

= £0.14

For 50p it would be

= £0.14 × 50

= £7

Now the total value is

= £2.80 +  £7

= £9.80

Page 1
1. Find the common denominator for the
pairs of fractions given.
3/5 and 2/15

Answers

Answer:

15 is the answer.      3/5 with the denominater would be 9/15

Other Questions
Which poetic device is beingutilized in the followingexcerpt from Whitman'spoem?The ship has weather'd everyrack, the prize we sought iswon;A. alliterationB. repetitionC. personificationD. onomatopoeia A) 15B) 5C) 12D) 3 How many seconds are in m minutes?60 + m seconds60 m seconds60/m Find the probability of the event.The probability of not choosing a black shirt is?? plants cells would not not have been able to absorb these minerals ions from the pond by diffusion . explain why not In witch country was the berlin conference held NEED HELP I SUCK AT GEOMETRY (OFFERING 100POINTS)!!! best answer get brainlest Show work to find the value of x. A nail is inserted in the trunk of a tree at a height of 1 meter from the groundlevel. After 3 years, where will the nail be present? I need help I dont understand this Given the following System of Equations what is the FIRST step whensolving?y=2x+3y=3x+1 The thin metal wire inside an electric bulb is known as- Why did the author of "Solar Power for Public Buildings" write this piece?to inform readers about the history of harnessing energy from the sun and other resourcesto entertain readers with a fun story about what life could be like in the near futureto teach readers solar energy can be harnessed and turned into electricityto persuade readers that California should power many of its buildings with solar energy describe two sequences of transformation that map figure ABCD onto figure EFGH PLEASE HELP ASAP!!!!!!!!!!!!!! three years back , a father was 24 years older than his son .at present,the father is five times as old as the son.how old will the son be three years from now? Defendant is accused of the wrong doing? please tell me the answer and how to get it. Trendy Toes produces sports socks. The company has fixed expenses of $85,000 and variable expenses of $1.20 per package. Each package sells for $2.00. Requirements: 1. Compute the contribution margin per package and the contribution margin ratio. 2. Find the breakeven point in units and in dollars. 3. Find the number of packages Trendy Toes needs to sell to earn a $26,000 operating income. Tamara looked at the expression 35 + z < 59. She believes that z can equal more than one value. enzymes : Fish that has been dried in the song keeps longer than wet fish.