cos(44-A). cos(44+A) + cos (46 -A).cos(46 +A) = cos2A​

Answers

Answer 1

Answer:

-0.0777026243 A^5

Step-by-step explanation:


Related Questions

z + y2
for y = 6 and z = 1

Answers

Answer:

37

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Step-by-step explanation:

Step 1: Define

z + y²

y = 6

z = 1

Step 2: Evaluate

Substitute in variables:                                                                                     1 + 6²Evaluate exponents:                                                                                         1 + 36Add:                                                                                                                   37

Help&EXPLAIN

Don’t use for points or will be reported and I’ll take the points back

Answers

Answer:

B = 243°

Step-by-step explanation:

Full revolution = 360°

360 - 117 = 243

Answer:

243 degrees

Step-by-step explanation:

The angle of a full circle = 360 degrees

360 - 117 = 243

- Kirk is reading a book and found that after 5 days he had read 180 pages.
rate is Kirk reading the book in (b) If the book is 765 pages long, how many
days will it take him to read the book at
the rate you found in (a)?

Answers

Answer:

21.25 days

Step-by-step explanation:

We first need to find the rate that he read the book for the first 5 days:

180 (pages)/5 (days)= 36

So he reads 36 pages a day. Now we need to find how many days it will take him to read the whole book, while reading 36 pages a day.

765 (total pages)/36 (pages he reads in a day) = 21.25

Have a wonderful day, my friend.

help please and thanks

Answers

Answer:

C

Step-by-step explanation:

6/9 simplified is 2/3 they're equal to each other so they're proportional

Hope this helps :)

Use the grouping method to factor the polynomial below completely.
3x3 + 6x2 + 5x + 10
A. (3x2 +5)(x+2)
B. (3x2 + 5)(x + 5)
C. (3x2 + 2)(x + 5)
D. (3x2 + 2)(x + 2)

Answers

Answer:

its A

Step-by-step explanation:

i did the test

Which could be the dimensions of a rectangular prism whose surface area is greater than 140 square feet? Select
three options.
6 feet by 2 feet by 3 feet
6 feet by 5 feet by 4 feet
17 feet by 6 feet by 4 feet
8 feet by 3 feet by 7 feet
8 feet by 4 feet by 3 feet

Answers

Answer:

6 feet by 5 feet by 3 feet

17 feet by 6 feet by 4 feet

8 feet by 3 feet by 7 feet

I need help with before 9

Answers

Answer:

There is no 9 on the paper.

Step-by-step explanation:

Answer:

1) p = how much he was paid per lawn

2) 4p = how much he was paid for 4 lawns

3) 4p = 24, then p = $6

4) 45-d = 21,  d = $24

The carnival is in town for 21 days. How many weeks is the carnival in town?(There are 7 days in 1 week.) Write and equation,and solve.​

Answers

Answer:

egn= 7x=y

where x= weeks no.

y= days

atq...x= 3

100 POINTS PLZ HELP ME

This graph shows a proportional relationship.




What is the constant of proportionality?


Enter your answer as a ratio in simplified form by filling in the boxes.


$$


A graph with a line running through coordinates left parenthesis 0 comma 0 right parenthesis and coordinates left parenthesis 1 over 4 end fraction comma 3 over 8 end fraction right parenthesis.

Answers

Answer:

I dont see a graph, but the constant of proportionality the ratio between two directly proportional quantities. two quantities are directly proportional when they increase and decrease at the same rate

Step-by-step explanation:

if you add a graph, ill edit my answer

hope this helps!


Type SSS, SAS, ASA, SAA, or HL to
justify why the two larger triangles are
congruent.
8 cm
8 cm

Answers

I think it’s HL I’m in acellus to what grade you in ?

Can you Help me please!!

Answers

Step-by-step explanation:

10 and under= 3

11-15=7

16-20=8

20 and over= 2

A.find the price elasticity of demand at the equilibrium points? quantity demand=72-8p and quantity supply=-24 +24p. B.substitutes the equation.​

Answers

Answer:

p = 3

Step-by-step explanation:

The price elasticity of demand at the equilibrium points occurs when quantity demand equals quantity supply.

So,

72-8p= -24 +24p

Taking like terms together,

72+24 = 24p+8p

96 = 32p

p = 3

Hence, the price elasticity of demand is at p = 3.

Pls help this is due in 10 minutes

Answers

Answer:

y = 52

Step-by-step explanation:

y/4 - 7 = 6 (get the y isolated)

y/4 = 13 (add 7 to both sides)

y = 52 (multiply 4 on both sides)

Help&EXPLAIN

Don’t use for points or will be reported and I’ll take the points back

Answers

Answer:

A. obtuse

Step-by-step explanation:

This is because in an obtuse angled triangle one of its angle is greater than 90° and here angle RQS = 112° which is greater than 90°, so it's a obtuse triangle.

Answer:

A. obtuse triangle

Step-by-step explanation:

the degree of RQS is greater than 90º

At a height of about 212 meters, One Shell Square is the tallest building in New Orleans. Marlie is creating a scale model of this building, using the scale factor 1:250.

To the nearest tenth of a meter, what will be the height of the scale model?

Enter your answer as a decimal in the box.
given 90 points for answering, thank you!

Answers

Answer:

0.8 meters

Step-by-step explanation:

The scale factor is 1:250 (can be rewritten as 1/250 or 1 to 250).

1/250 × 212 = 0.848 Meters

Round to the nearest tenth, the scale model will be 0.8 meters.

OR: SET UP A PROPORTION:

[tex] \frac{250}{1} \times \frac{212}{x} [/tex]

cross-multiply

[tex]250x = 212[/tex]

[tex]x = 0.848[/tex]

Answer:

0.8

Step-by-step explanation:

ye

-2xSquared +4x-1 minus 6x squared+3x-9

Answers

Your answer is 4x^2+7x-10

Three students ran 1/2 mile around a track. The table below list the time each student took to run around the track. Complete the table by calculating the average speed of each student in miles per hour (mph).

Give answer and explanation of how you got the answer please. Give brainlyest. ​

Answers

Answer:

Step-by-step explanation:

Answer:

Ava 6 mph; Damon 10 mph; Reina 7.5 mph

Step-by-step explanation:

In a research experiment, the population of a colony of bacteria doubles every hour. The population, f() of the colony atter z hours can be modeled by the function () - 25.2" What values for the domain are reasonable in the given
context

Answers

Answer:99

4/2ndjsjhowkllsnlove u

COMPLETE THE SEQUENCES.
1- 0, 16, 32, 48, 64,_,_,_,


2- 2,9, 11, 18, 20, 27,_,_,_,

SOMEONE PLEASE HELP ME

Answers

Answer:

0,16,32,48,64,80,96,112

2,9,11,18,20,27,29,36,38

Step-by-step explanation:

1.Counting by 16

2. Counting by 7 and 2

Solve by graphing.
x + 3y = -9
5x + 3y = 3 ​

Answers

Answer:

Step-by-step explanation:

The solution of the system of linear equations is [tex]x = 3[/tex] and [tex]y = -4[/tex].

In this question, we notice that given system of linear equations consist of two equations and two variables, which means that solution is unique and can be found by graphic means. We proceed to graph each line with a graphing tool and label the point, in which both lines intersect each other.

The outcome from the graphing tool is presented below as attachment. In a nutshell, the solution of the system of linear equations is [tex]x = 3[/tex] and [tex]y = -4[/tex].

We kindly invite you to see this question related to systems of linear equations: https://brainly.com/question/13647755

Can someone please help with these two questions please?

1. Assume that the radius r of a sphere is expanding at a rate of 60 cm/min. The volume of a sphere is V = 4/3r^3 and its surface area is 4r^2. Determine the rate of change in surface area at t = 2 min, assuming that r = 16 at t = 0.

2. A conical tank has height 3 m and radius 2 m at the top. Water level is rising at a rate of 2.1 m/min when it is 1.8 m from the bottom of the tank. At what rate is water flowing in? (Round your answer to three decimal places.)

Answers

Answer:

Step-by-step explanation:

S=4πr²

ds/dt=4π×2r×dr/dt=8πr dr/dt

dr/dt=60 cm/min

ds/dt=8π×60r=480πr

r=16,t=0

at t=2,r=16+32=48 cm

so ds/dt=480π×48=23040 πcm²≈72382.79 cm²

2.

[tex]V=\frac{1}{3} \pi r^2*h\\\frac{r}{h} =\frac{2}{3} \\r=\frac{2}{3} h\\V=\frac{1}{3} \pi( \frac{2}{3} *h)^2h\\V=\frac{4}{27} \pi h^3\\\frac{dV}{dt} =\frac{4}{27}\pi *3h^2\frac{dh}{dt} \\\\when ~h=1.8 ~m,\frac{dh}{dt} =2.1~m/min\\\frac{dV}{dt} =\frac{4}{9}\pi h^2\frac{dh}{dt} =\frac{4}{9} \pi*(1.8)^2*2.1=27.216 \pi \approx 85.502 m^3[/tex]

Please help- Show ur work,, and please answer correctly
I will also give brainliest

Answers

Answer:

x = -4.

n = -2.

v = -5.

Step-by-step explanation:

18 = -4x + 2

18 - 2 = -4x

x = 16/-4

x = -4.

6 + 2n = 2

2n = 2 - 6 = -4

n = -2.

5v + 8 = -17

5v = -17 - 8

5v = -25

v = -5.

What is 3-8 I don’t know what it is I can not figure it out

Answers

Answer:

-5

Step-by-step explanation:

Answer:

your answer is -5

Step-by-step explanation:

when your reach 0 your keep going to the negetives

please answer!
Find the value of x.
115°
150°
thank you :)

Answers

Answer:

35 degrees

Step-by-step explanation:

180-150=30

115+30=145

180-145=35

35

Answer:

360 degrees - 150degrees =110 degrees

add 110 and 115 degrees to get 225 degrees

next subtract 360 - 225= 135 degrees

so x equals 135

Step-by-step explanation:

can i have brainliest

[9 • 23 - 2] + 9 need help

Answers

Answer:

214

Step-by-step explanation:

9·23=207

207-2=205

205+9=214

I hope this helps, and have a great day! :D

there are 84 girls in grade 3.the boys are twice the numbers of girls. how many pupils are there in all in grade 3?​

Answers

Answer:

252

Step-by-step explanation:

Girls = 84

Boys = 84 * 2 = 168

Total = 252

Answer:

Step-by-step explanation:

no of girls in grade 3 = 84

by the question no of boys are twice the number of girls so

no of boys = 2 * 84 = 168

Total no of pupil in grade 3

= 168 + 84

= 252

hope it will help :)

Construct 98% confidence intervals based on the following data: 49, 38, 67, 69, 58, 70, 66, 85.​

Answers

Answer:

May I have a little more context please?

Step-by-step explanation:

A frame is 4 inches tall and 3 inches wide if it is enlarged to a height of 24 inches then how wide will it be

Answers

Height: width
4:3 = 24:x
x = 18
The frame will be 18 inches wide.

I need help the question is solve the equation n+75=155​

Answers

all you need to do for this is 155-75 which would be 80 :) hope this helps

Answer:

80

Step-by-step explanation:

155-75=80

Help&EXPLAIN

Don’t use for points or will be reported and I’ll take the points back

Answers

Answer:

i guess the answer maybe A

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