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.

Answers

Answer 1

Answer:

33/16

Step-by-step explanation:


Related Questions

Please help me :) Im only giving brainliest to correct answers, and No LiNkS.

Answers

Gravity is measured in squares units..

Using the other units given, meters and seconds, gravity would be : meters per second squared

Answer:

meters per second

Step-by-step explanation:

Company X tried selling widgets at various prices to see how much profit they would
make. The following table shows the widget selling price, x, and the total profit
earned at that price, y. Write a quadratic regression equation for this set of data,
rounding all coefficients to the nearest tenth. Using this equation, find the profit, to
the nearest dollar, for a selling price of 14.25 dollars.

Answers

Regression equations are used to represent the relationship between the x and y variables.

The quadratic regression equation is [tex]\mathbf{y =-6.407 X^2 +216.721 X -975.561}[/tex]The profit for a selling price of $14.25 is $812

To determine the quadratic regression equation, we make use of a graphic calculator

Using a graphing calculator, we have the quadratic regression equation to be [tex]\mathbf{y =-6.407 X^2 +216.721 X -975.561}[/tex]

When the selling price is $14.25, it means that:

[tex]\mathbf{x = 14.25}[/tex]

So, we have:

[tex]\mathbf{y =-6.407 \times 14.25^2 +216.721 \times 14.25 -975.561}[/tex]

Evaluate the exponents

[tex]\mathbf{y =-6.407 \times 203.0625+216.721 \times 14.25 -975.561}[/tex]

Evaluate the products

[tex]\mathbf{y =-1301.0214375+3088.27425 -975.561}[/tex]

Evaluate like terms

[tex]\mathbf{y =811.6918125}[/tex]

Approximate to the nearest dollar

[tex]\mathbf{y =812}[/tex]

Hence, the profit for a selling price of $14.25 is $812

Read more about regression equations at:

https://brainly.com/question/7656407

HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

the answer is:
a. $13.60

step by step explanation:
all you have to do is divide:

so 68/5 is 13.6


hope this helps

Answer:

Each friend will pay 13.60 dollars.

Step-by-step explanation:

68/5 is 13.6

convert

b) 25 m³ to ft³
c) 11 ft² to in²​

Answers

Answer:

conversions are below

Step-by-step explanation:

b) 25 m³ = 882.867 ft³

c) 11 ft² = 1584 in²

need help please and thank you!!

Answers

Answer:

x=125

Step-by-step explanation:

Since the sum of the angles is 720 degrees, you can set up the following equation:

120+100+120+120+x+(x+10)=720

2x+470=720

2x=250

x=125

solve for x, find the measure of all angles hurryyyyyy! ​

Answers

Answer:

Step-by-step explanation:

Well the first fact is that you can solve H and J with 1 equation. Two remote (unconnected to) one of the exterior angles when summed, equals the unconnected exterior angle.

H + j are not connected to the exterior angle at I.

Put more directly

2x + 3x = 150        Combine

5x = 150                Divide by 5

x = 150/5

x = 30

So H = 2 * 30 = 60

and J = 3*30  = 90

All triangles have interior angles that add up to 180

We have already accounted for 150.

JIH + 150 = 180  Subtract 150

jIH = 180 - 150 = 30

Summary

x = 30

JIH = 30                      

H = 60

J = 90

Sam earns $.75 for each call he makes for a telemarketing service. He hopes to make at least $100 each day. Write an inequality to represents the number of calls he must make each day. (Let c equal the number of calls. )

Answers

0.75c < or equal to 100



1.Find the missing fraction, decimal, or percent. Reduce fractions to the lowest terms.

Question: 93% what is the equivalent fraction and decimal?

Hint: separate your answers for the missing information with a comma make sure not to have

additional spaces in your answers. Ex: 93/100,93 Ex: 93%,.93 Ex: 93/100,93%*

Answers

Answer:

93/100 as a fraction. 0.93 as a decimal.

Step-by-step explanation:

Which expression is equivalent to n2 + 26n + 88 for all values of n?

(n + 8)(n + 11)
(n + 4)(n + 22)
(n + 4)(n + 24)
(n + 8)(n + 18)

Answers

Answer:

Option B is correct.

Step-by-step explanation:

Our expression is:

n² + 26n + 88

Let's check all of our options to see if any option is accurate.

Option A:

(n + 8)(n + 11)

=> n² + 11n + 8n + 88

=> n² + 19n + 88

n² + 19n + 88 ≠ n² + 26n + 88

Option B:

(n + 4)(n + 22)

=> n² + 22n + 4n + 88

=> n² + 26n + 88

=> n² + 26n + 88 = n² + 26n + 88 ✔

Option C:

(n + 4)(n + 24)

=> n² + 24n + 4n + 96

=> n² + 28n + 96

=> n² + 28n + 96 ≠ n² + 26n + 88

Option D:

(n + 8)(n + 18)

=> n² + 18n + 8n + 144

=> n² + 26n + 144

=> n² + 26n + 144 ≠ n² + 26n + 88

Conclusion:

So, after working on this problem, we can conclude that Option B is our answer. Hoped this helped

Answer:

B

Step-by-step explanation:

edge 22'

5. Find the triangle similar to AABC at the right. Question 5

Answers

Answer:

b

Step-by-step explanation:

If you multiple each side by 3 then they will equal the numbers that b has

What is the slope of the line?
3x-4y=73x−4y=7

Answers

Answer:

67x-7y2x-f8

Step-by-step explanation:

Help?

I tried : 3b^2(2b-1)(2b+1) and it was wrong ):

Answers

Answer:

b(3b−10)(b−1)

Step-by-step explanation:

b(3b−10)(b−1)

PLEASE HELP!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

I think it's c

Step-by-step explanation:

because that looks like a good answer.

I 3) Give the steps you will use to separate the variable and the solve the equation.
a) у/3 = 4
b) Zn - 6 = 8
pls pls pls pls give step by step answer I will mark brainlist ​

Answers

(1)

Multiply both sides by 3

y = 4 * 3

Simplify 4 * 3 to 12

y = 12

(2)

There are two possibilities for both z & n.

Solving for z:

add 6 to both sides

2n = 8 + 6

simplify 8 + 6 to 14

zn = 14

divide both sides by n

z = 14/n

Solving for n:

add 6 to both sides

zn = 8 + 6

simplify 8 + 6 to 14

zn = 14

divide both sides by z

n = 14/z

what is? -6 = x + 6

this is one step equation addition / subtraction

Answers

[tex] \: \: \: \: \: [/tex]

x = - 12

refer to the attachment

refer to the attachmenthope it helps

[tex]\sf \longmapsto-6 = x + 6[/tex]

Flip the equation

[tex]\sf \longmapsto \: x+6=−6[/tex]

Subtract 6 from both sides

[tex]\sf \longmapsto \: x+6−6=−6−6[/tex]

[tex]\sf \longmapsto \: x=−12[/tex]

[tex] \boxed{ \sf \: x=−12}[/tex]

Sorry for the spam, I just really need help.

Answers

13 is C and 14 is b

0.69 x 10 to the 3rd power

Answers

Answer:

690

Step-by-step explanation:

0.69 x 10^3=

0.69 x 1000=

690

Answer:

Step-by-step explanation:

0.69*1000= 690

BRAINLIEST
Two questions to solve
Please no trolling

Answers

Answer:

Step-by-step explanation:

question 13:

the triangle with x is a 30-60-90 triangle which means

x= 17√3

then the traingle with y and z is a 45-45 triangle

z=34

y= 34√2

question 14:

x= 18√3

z=9

y= 18

List negative numbers that are between -103 and -130​

Answers

Answer:

-104, -105, -106, -107, .... -123, -124, -125, -127, -129

Answer:

-104,-105,-106,-107,-108,-109,-110,-111,-112,-113,-114,-115,-116,-117,-118,-119,-120,-121,-122,-123,-124,-125,-126 ,-127,-128 -129

Find an expression which represents the difference when (-x+9y) is subtracted from (-6+4y)

Answers

Answer:

x - 5y - 6

Step-by-step explanation:

- 6 + 4y - ( - x + 9y) ← distribute parenthesis by - 1

= - 6 + 4y + x - 9y ← collect like terms

= x - 5y - 6

One-half of the sum of a number and 12 is less than 27.  What is the number?  Write as an inequality.  ​

Answers

Answer:

Call the number we need to find a.

Inequality: (12 + a) ÷ 2 < 27

<=> 12 + a < 54

<=> a < 54 - 12

<=> a < 42



· Jessica has 5x - 3 magazines while Kenya has 4x + 2 magazines. How many

magazines do they have altogether?

Answers

Answer:

9x-1

Step-by-step explanation:

solution - jessica has 5x-3 magazines

                kenya has 4x+1 magazines

so, magazines do they have together = 5x-3+4x+2

= 9x-1

hence, magazines do they have together = 9x-1

The simple process of counting the number of observations (cases) that are classified into certain categories is called

Answers

Answer:

tabulation. the simple process of counting the number of observations (cases) that are classified into certain categories; a frequency count; counting the number of responses in categories. one-way tabulation. categorization of single variable existing in a study.

Step-by-step explanation:

Which equations represent exponential growth? Which equations represent are exponential decay?
pls help​

Answers

Answer:

When the base is less than 1 it's Decay

When the base is greater than 1 it's Growth

In Dominic’s classroom, there are 5 rows of desks. There are 5 desks in each row. In all, 5 classrooms in his school have the desks set up the same way. Write an expression with an exponent that shows the total number of desks in these 5 classrooms.

Use words, numbers, and/or pictures to show your work. Write your answer on the paper provided.

Answers

Answer:

5^(3) is the exponent form which equals 125desks

Step-by-step explanation:

A row has 5 desks

A classroom has 5 rows of desks= 5*5 desks

The school has 5 classrooms

=5*5+5*5+5*5+5*5+5*5 desks

=5^(2)+5^(2)+5^(2)+5^(2)+5^(2)

=5[5^(2)]

=5^(3) = 125 desks

help plssss PLSS I BEG YOu

Answers

Answer: Just Try to Do somthing because i cant tell you the Answer

Step-by-step explanation:

Can someone please help me please!!

Answers

Answer:

137 i am sorry if incorrect

Step-by-step explanation:

9. The
school is planning on taking 684 students on the field trip. If the bus can only hold 43
students, how many buses will they need?

Answers

Answer:

16

Step-by-step explanation:

Answer:

16 buses

Step-by-step explanation:

684/43 = 15.9

The equation Y-5 = 6(x+1) is written in point-slope form. What is the equation written in slope-intercept form?
O y = 6x + 11
O y = 6x - 1
O y = 6x - 4
O y = 6x + 6.

Answers

Answer:

Option A: y = 6x + 11

Step-by-step explanation:

Given the linear equation in point-slope form, y - 5 = 6(x + 1), and that we must determine its equivalent slope-intercept form, y = mx + b:

First, we must distribute 6 into the parenthesis on the right-hand side of the equation:

y - 5 = 6(x + 1)

y - 5 = 6x + 6

Lastly, we must add 5 to both sides of the equation to isolate y:

y - 5 + 5 = 6x + 6 + 5

y = 6x + 11

Therefore, the slope-intercept form is: y = 6x + 11, which matches Option A.

Explain the difference between (3) -n and (3) n

Answers

Answer:

you mean different b/n -3 and 3 ya ?ok -3 is get left of zero and positive 3 is (3>0) but -3<0

Other Questions
Write the equation of the line passing through the points (9,2 ) and (-3, -2) Quick Help5. Rick is about to stand trial, but he does not know what the charges are against him. _________________________________________________ 6. Negan has been held in jail for three years without a trial. _________________________________________________ 7. Keisha committed a crime in New York, but the punishment for the crime is harsher in Georgia, so the prosecutor organizes her case to be transferred to Georgia. _________________________________________________ 8. Tyrell has selected a series of witnesses to examine which will attest to his clients innocence. _________________________________________________ 9. Though new evidence was found to convict Phillip after he was tried and found innocent, the prosecutor did not pursue a new trial. _________________________________________________ 10. Sam cannot afford a lawyer, but the state appoints him one. _______________ Write a slogan for Mercedes Find the lengths of the sides of the triangle formed by the coordinates below. Then classify the triangle by sides.A(1,1) B (4,1) C (4,5)AB = BC = AC =Number of congruent sides= Then classify the triangleIsosceles, scalene or equilateral It is against the law to pass when your view of the road ahead is obstructed and when you are within _____ feet of a bridge, viaduct, or tunnel. 100 150 200 300 2. What was the purpose of a dictator? PLS HURRY ONLY CORRECT ANSWERS 50 POINTS NEED THIS IN ONE HOUR Part A: Rhett made $250 washing cars with his mobile car wash company. He charges $70 per car and earned $50 in tips. Write an equation to represent this situation. (4 points)Part B: Scarlett made a profit of $250.00 with her mobile car wash company. She charged $75.00 per car wash and received $35.00 in tips, but also had to pay $5.00 in cleaning supplies per car wash. Write an equation to represent this situation. (4 points)Part C: Explain how the equations from Part A and Part B differ. (2 points) Please help with this question and if you can explain because Im confused. - thank you "The Road Not Taken" is mainly about...regret over hurting other peoplehow to take two roads at oncethe way we make choices in lifethe dangers of traveling alone please answerrrrrrrrrrrrrrrrrrr What is the Slope of the equation y = x - 2Question 4 options:1-220 What is Chlorophyll and why do plants need it? performing a particular series of operations on the information, such as a set of calculations........ According to the findings of Ericsson's study, after a student is enrolled in a prestigious music school, what is the greatest factor contributing to his or her success the word eradication means Keesha is very keen on staying alert and conscious throughout the delivery process, but she is experiencing a lot of pain in her upper back and neck during her labor. Her doctor suggests that the best option for her would be to receive a(n) ________ to relieve her pain and retain awareness throughout the delivery. Given: SR is the perpendicular bisector of QT; QR is the perpendicular bisector of SPProve: PQ=TS The sides of a rectangle are in the ratio of 5:6. If its longer side is 7.2 in., find the shorter side, the perimeter, and the area of this rectangle. Samantha wants to begin searching for a job using the Web. The best source for her online search will probably be __________. Atoms: SC.8.P.8.7Match the definition to proper definition:Term:Definition:1. AtomsA.Positive subatomic particles found in thenucleus of the atom2. NeutronB. Negative subatomic particle found in the cloud3. ProtonC. Substance that has no electrical charge4. NucleusD. Basic building block of all matter5. Electron cloudE. Substance that consists of only one type of ato,6. ElectronsF. Center of an atom with a positive chargeG. Outside of the atom with a negative charge7. Element