For positive acute angles A and B, it is known that cos A = 4/5 and tan B =5/12 Find the value of cos(A + B) in simplest form.

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Answer 1

Answer:

33/16

Step-by-step explanation:


Related Questions

i need a lot of help and please help i need it

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Answer- Give me the question and Ill help :)

1. write a mathematical expression that explains the following sentence:

The sum of 4 and d, then multiply the result by 2

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Answer:

(4 + d) × 2

Step-by-step explanation:

2(4+D)

Use pemdas to evaluate the equation

What is an equation of the following line?

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Answer:

y = 5

Step-by-step explanation:

The equation of a horizontal line parallel to the x- axis is

y = c

where c is the value of the y- coordinates the line passes through.

The line passes through all points with a y- coordinate of 5 , then

y = 5 ← equation of line

5 16/17 as an improper fraction

Answers

Answer:

5 16/ 17

17 x 5 + 16

85+16

101/17

Step-by-step explanation:

goodluck

Answer:

answer is 101/17

i need help: solve (4x^(6))^((3)/(2))

Answers

Answer:

(4x^{(6)})^{(\frac{(3)}{(2)})}

(4x(6))((2)(3))

Step-by-step explanation:

I think that's the answer

graph the line with slope -3 passing through the point (4, -3)

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Answer:

my suggestion to you is that you use a ruler and a piece of paper to draw out the graph then plot the point down and draw the line.

(I hope this helps you!)

90/9 as a whole number

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Answer:

10

Step-by-step explanation:

82837848+8383830.84-73327.00.73 =?

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Answer:

91148351.8327

Step-by-step explanation:

Calculator

[tex]\frac{4x}{5}+\frac{5x}{6}[/tex]

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Solving:

To solve this issue, first we have to match the denominators, for this we have to take the LCM from the denominators 5.6, Then just solve the fraction normally, See:

[tex]\sf \dfrac{4x}{5}+\dfrac{5x}{6}\to LMC~(5,6)=30\\\\\\\sf =\dfrac{24x}{30}+\dfrac{25x}{30}\\\\\\\sf =\dfrac{24x+25x}{30}\\\\\\\boxed{\sf \frac{49x}{30}}[/tex]

Okay?!

9x^2-(3x+1)(4x-5)+1+6x=0

Answers

Answer:

x = -1/3 or x = 6

Step-by-step explanation:

For this equation, you should use the FOIL method or the BOX method. Break it apart to solve it easier. Sites like mathpapa or symbolab can help break these down for you.

Analyze the diagram below and complete the instructions that follow.

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so we know m<3=70

m<2=90

m<2+m<1=m<4

try 50?

let me know if it is wrong

6(4x-3)-9x distributive property

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Answer:

15x-18

Step-by-step explanation:

use pemdas

do parenthesis first

6(4x-3)-9x

24x -18 -9x

15x-18

The simplified expression after applying the distributive rule for the expression 6(4x - 3) - 9x becomes 15x - 18

The given expression is:

6(4x-3)-9x

Expanding the expression using the distributive rule

24x - 18 - 9x

Collect like terms

24x - 9x - 18 (since 24x and 9x are similar)

The resulting expression becomes:

15x - 18

The simplified expression after applying the distributive rule for the expression 6(4x - 3) - 9x becomes 15x - 18

Learn more on distributive property here:

https://brainly.com/question/4077386

What is the are of a circle if pi is 22/7

Answers

Answer:

In-sufficient data

Step-by-step explanation:

The formula for area is pi*radius*radius

Math 8 Question! :)

Four different positive integers have a mean (average) of 100. If the positive difference between the smallest and largest of these integers is as large as possible, determine the average of the other two integers.

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Answer:

2.5

Step-by-step explanation:

"Four different positive integers have a mean (average) of 100"

The total of the 4 numbers is then 4* 100 = 400

"the positive difference between the smallest and largest of these integers is as large as possible"

to get the greatest difference the first 3 numbers must be

1, 2 and 3 which totals 6

the 4th number is then 400 - 6 = 394

the four numbers are 1, 2, 3 and 394

The greatest difference is between 1 and 394

"the average of the other two integers"

(2 + 3)/2 = 2.5

The average of the other two integers is 1.5.

What is the average of the two numbers?

An integer is an whole number. An example of an integer is 20.

If the mean of the four integers is 100. It means that the sum of the integers must be 400. If the integers are 0,1,2, 397. The largest number is 397 and the smallest number is 0. The average of the other two integers is (1 + 2 ) / 2 = 1.5

To learn more about mean, please check: https://brainly.com/question/25842202

E = (-52) + 13 + 49 + (-15) + (-36) + 82

Answers

Answer:

E = 41

Step-by-step explanation:

E = (-52) + 13 + 49 + (-15) + (-36) + 82

Take the -ve terms to one side and +ve terms to the other.

E = (13 + 49 + 82) - 15 - 36 - 52

E = 144 - 103

E = 41

Suppose you have a coin collection of dimes and quarters containing 46 coins. If you have $6.70, how many of each type of coin do you have?

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answer:

32 dimes and 14 quarters

step by step:

32 x 10 = 320

14 x 25 = 350

320 + 350 = 670

670¢ =  6.70$

What is the value of ? show your work help please.​

Answers

Answer:

Step-by-step explanation:

[tex]\frac{25}{20}=\frac{30}{4x-4}\\\frac{30}{1.25}=4x-4\\x=7[/tex]

Answer:

x = 7

Step-by-step explanation:

I'm assuming ΔJKL and ΔMNP are similar as you wouldn't be able to solve it otherwise. ∠J≅∠M and ∠K≅∠N, so I assume its just a poorly formed question.

With that assumption made, if 2 triangles are similar, the scale factor on all sides are equal. That means this:

[tex]\frac{JK}{MN} =\frac{JL}{MP}[/tex]

The scale factor is just the new length divided by the old length, and that equation shows the scale factor on both of those side lengths are the same. With 3 of the 4 side lengths, you can plug those values in and solve for the last unknown.

[tex]\frac{25}{30} =\frac{20}{4x-4}[/tex]

I use cross multiplication here:

[tex]25(4x-4)=20(30)\\100x-100=600\\100x=700\\x=7[/tex]

will give brainliest no files will report.

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I believe the correct answer would be C!

If you can get poland spring water, 3 for $11.00 how much would be 2 cases of water?

explain

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3 cases /3= $11 /3

1 case x 2= 11/3 x2

2 case = 22/3 = (round to the hundreth) $7.33

i need help please no bots

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Answer:

>

Step-by-step explanation:

Squares eventually get bigger then when you multiply

sandra babysat for the millers for 4.5 hours. the millers gave her 40$. write and solve an equation to calculate how much sandra earned per hour. round to the nearest hundrefth.

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40%4.5=x
X=8.8
Or if ur aloud to round 9$ an hour

The nth term of a sequence is n^2 + 5.

Find the first three terms and show that 261 is a term in this sequence.

Answers

Answer:

first 3 terms: 6, 9, 14

16^2+5=261

Step-by-step explanation:

1^2+5= 6

2^2+5= 9

3^2+5= 14

For the problem 12(-3)(-2), will the answer be positive or negative?

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72 multiplying an even number of negative terms makes the number positive

Answer:

the answer is positive.

Step-by-step explanation:

12(-3)(-2)

the 2 negatives cancel out, so you get a positive 6

12(6)

72

positive 72

hope this helped!

mark me brainliest :D

Help pleasee giving brainliest!!

Answers

Answer:

x=21

<1=120

Step-by-step explanation:

So to find x set up an equation like this:

(5x+15)+(3x-3)=180

since the bottom and top lines are congruent they are 'interior angles on the same side of a transversal' which are always supplementary, so that's where 180 comes from.

calculate the equation and you'll get x=21 :D

next to find 1 just put 21 in place of x: 3(21)-3=60

since it's supplementary to angle 1 you take 180-60=120

angle <1=120!


What is the solution (pls help ASAP )

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Answer:

c  the factor of the inequality is correct - took this test already

Step-by-step explanation:

Dan earns £300 over the course of a five-day week. How much is that per day?

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Answer:

£60 per day

Step-by-step explanation:

1 week = 5 days

Dan earned = £300

therefore 1 day = 300 ÷ 5 = £60 per day

300/5days
So 60 a day

A family buys a studio apartment for 120,000. They pay down payment of 18,000.

A. Their down payment is what percent of the purchase price?

B. What percent of the purchase price would a 48,000 down payment be?​

Answers

Answer:

EZ

Step-by-step explanation:

A. 15 Percent

B. 40 Percent

Answer:

A) 15% B) 40%

Step-by-step explanation:

help me with this math work please

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1) +200
2) +5
3) -3 degrees C
4) 21 degrees C
5) +150
6) -3 degrees C
7) 25
8) +6
(positive signs are not required)


BRAINLIEST PLEASE

Select all of the given points in the coordinate plane that lie on the graph of the linear equation $$.

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70.00 is the correct answer

please help me i need this quick

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So to do that problem, the variable h is the feet. So you plug 15 into variable h. When you do that you get:

15 = 2+ 32t -16(t^2)

16(t^2) - 32t = -13

h = 2 + 32t - 16t^2 is the function given to model the balls flight and we want to know what time the ball is at 15 feet in the air, which is at 2 points in time since the ball takes a parabolic trajectory.

15 = 2 + 32t - 16t^2

0 = -16t^2 + 32t -13

since the equation isn't factorable we will use the quadratic formula.

(-b +- sqrt(b^2 - 4ac))/2a

=

we end up with t = (4+-sqrt(3))/4 which is t = 1.43 seconds and t = 0.57 seconds when approximated.

Other Questions
2.Read the sentences from the excerpt. .Such was the golden summer of Roaring Camp. They were "flush times," andthe luck was with them. The claims had yielded enormously.Which word from the sentences BEST helps the reader to understand the figurative meaningof golden as it is used in the sentences?A summerB. luckC. claimsD. yielded Read the excerpts from "Wrongful Convictions by Jon Gould and Just Mercy by Bryan Stevenson."Wrongful ConvictionsNow, with DNA evidence available, it is essential that that testing be done earlier in a case because certain people can be weeded out from the beginning. And I recognize that that testing is expensive, but the testing is likely going to be used anyhow in these cases, so you might as well do it earlier.Just MercyWe also make terrible mistakes. Scores of innocent people have been exonerated [cleared] after being sentenced to death and nearly executed. Hundreds more have been released after being proved innocent of noncapital crimes through DNA testing. Presumptions of guilt, poverty, racial bias, and a host of other social, structural, and political dynamics have created a system that is defined by error, a system in which thousands of innocent people now suffer in prison. Which quotation from Just Mercy confirms a detail from "Wrongful Convictions?a system in which thousands of innocent people now suffer in prisoninnocent people have been exonerated after being sentenced to death and nearly executedhave been released after being proved innocent of noncapital crimes through DNA testingand political dynamics have created a system that is defined by error James is following this recipe to make flapjacks.James uses 330 mL of syrup.How many flapjacks is James making?Recipe: Makes 8 flapjacks100 g sugar110 mL syrup220 g oats165 g margarine30 g sultanas The hypotenuse of a right triangle is three times the length of one of its legs. The length of the other leg is four feet. Find the lengths of the three sides of the triangle. For non-integer answer(s), round your answer(s) to the nearest tenth.___ feet, ___ feet, ___ feet why do first world countries have a good standard of living . What is wrought iron? Discuss in brief its chemical composition, properties and applications. how to simplify 3x - 20 -2.7 = a - 3.3whats the operation is it an inverse or a reciprocal what does A= Help ASAP 18. What type of law does Saudi Arabia follow? All of the license plates in a particular state feature three letters followed by three digits (e.g. ABC 123). How many different license plate numbers are available to the state's Department of Motor Vehicles? am 7. If the base of the parallelogram is equal to ir and the height is r, then what is the area of the parallelogram? help me pleaseeeeee!!!!!! Look at the two equations:-3x + 6 = 21 -3x + 6 < 21 Which statement best describes the process used to solve the equations?O In both cases, subtract 6 from both sides, but reverse the inequality sign when doing that for the inequalityO In both cases, divide by -3 on both sides, but reverse the inequality sign when doing that for the inequality. O The process is exactly the same for solving the equation and solving the inequalityO The process for solving the equation is entirely different from solving the inequality. Can literacy on media and information help solve the dilemma that people in the education, business and tourism? Which of the following is the perimeter of a triangle with side lengths of 8 in, 9 in, and 11 in? please paraphrase this paragraph As a conclusion we first learned what is Discrete Fourier Transform andwhy is it very important in signal processing science as it helps us to convert the discrete signal from time domain into frequency domain and the inverse DFT does the opposite converting the signal from frequency domain back into time domain. We have also learned the difference between DFT and the FFT algorithm where the FFT is an efficientalgorithm created to simplify the DFT process as it is faster and more accurate. We also learned how to perform and implement this algorithm using Matlab, make your own dish pantry package potluck portfolio who was the first person to see cells under a microscope HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP Simplify the expression.6(12 3) + 4 + (3 2)a.64b.96c.144d.208