Consider the derivation of sin(2x). A 2-column table with 3 rows. Column 1 has entries 1, 2, 3. Column 2 is labeled Step with entries sine (2 x) = sine (x + x), = sine (x) cosine (x) + cosine (x) sine (x), = (sine (x) cosine (x) ) squared. Where is the error?

Answers

Answer 1

Answer:

D, Step 3

Step-by-step explanation:

I just did it on edge

Answer 2

Answer:

The answer is D Step 3 should read = 2sin(x)cos(x).

Step-by-step explanation:


Related Questions

Cooper has a points card for a movie theater. • He receives 70 rewards points just for signing up. • He earns 8.5 points for each visit to the movie theater. • He needs at least 260 points for a free movie ticket. Which inequality can be used to determine v, the minimum number of visits Cooper needs to earn his first free movie ticket?

FIRST TO ANSWER CORRECTY WILL BE MARK AS BRILLIANT !!!!​

Answers

Answer:

The correct answer is 70+8.5V > 260

Step-by-step explanation:

The equation of this is that instead of getting 260 points instantly he can get to 23 movies and earn the points each visits. So

8.5x23+70=265.5

Hence the correct answer is C

The function C(t)=100*e^-0.000121t describes how to find the percentage of carbon-14, C(t), remaining in an object after t years. According to this information, what was the percentage of carbon-14 remaining in an object after 55 years? (Round your answer to the nearest hundredth.)

Answers

Answer:

99.34 years

Explanation:

Given function:

[tex]\sf C(t)=100*e^{-0.000121t}[/tex]

Insert t = 55:

[tex]\sf C(55)=100*e^{-0.000121(55)}[/tex]

Simplify following:

[tex]\sf C(55)=99.3367[/tex]

Round to nearest hundredth:

[tex]\sf C(55)=99.34[/tex]

3) If the speed limit on a highway in the UK is 70 miles per hour and
it is 120km per hour in Canada, which country has the higher speed
limit for highways? What is the difference between them?

Answers

Step-by-step explanation:

for this we need to know the conversion rate between miles and kilometers :

1 mile = 1.60934 km

which means

1 km = 0.621371 miles

so,

70 m/h = 70×1.60934 km/h = 112.6538 km/h

compared to the 120 km/h limit in Canada, it is clear that the speed limit in Canada is higher.

the difference is

7.3462 km/h = 7.3462×0.621371 = 4.56471564 m/h

My age is twice what my age was 15 years ago . what was my age 15 years ago ?​

Answers

Answer:

two times less than your age is now

answer Number 3 please

Answers

Answer:

It is reasonable

Step-by-step explanation:

23 degrees Fahrenheit converts directly to -5 degrees Celsius

help me please!!!!!! giving out brainliest

Answers

Answer:

1 = 175ft cubed

2 = 58m cubed

3 = 140m cubed

4 = 180in cubed

Step-by-step explanation:

You have to split these complex shapes into parts and find the volume of each part.  Then, add the parts' volumes together, which will be the total volume of these.  The equation is V=bhw.  V means volume, b means base, h means height, and w means width.  Hope this helps!

A semi- circle has an area of 35cm . What is its diameter?

Answers

Answer:

Area Semicircle = 1/2 πr²

where

r radius of semicircle

→ ½ * 22/7 * r² = 35

→ 11/7 * r² = 35

→ r² = 35*7/11

→ r² = 245/11

→ r² = 22.77

→ r = √22.77

→ r = 4.77

Therefore,

Diameter = 2*4.77

= 9.54 cm

find the surface area of the figure. round to the nearest hundredth when necessary.

Answers

Answer:

in terms of pi: 112.5pi mm squared

substituting pi for 3.14: 353.25 mm squared

Step-by-step explanation:

Surface area cone equation:

Πr2 + π*r*s

4.5^2 = 20.25pi

400 + 20.25 = 420.25

sqrt(420.25) = 20.5

20.25pi + 92.25pi = 112.5pi

What is the volume of this rectangular prism?


16 cubic centimeters


96 cubic centimeters


160 cubic centimeters


192 cubic centimeters

Answers

Answer:

The volume of this rectangular prism is 96 cubic centimeters

Step-by-step explanation:

The volume of a rectangular prism = Length × width × height

= 8 × 6 × 2

= 96 cubic centimeters

The price of a camera is $ 9810 inclusive of sales tax. If the rate of sales tax is 9%, find the printed price of the camera.

Answers

Answer:

$8927.1

Step-by-step explanation:

printed price is the actual price without including tax price

tax price= 9/100×9810

tax price= 0.09×9810= $882.9

printed price of the camera= 9810-882.9= $8927.1

If a recipe requires 1/4 pounds of ground beef
to make 6 servings of chili, how many servings
can be made with 1 1/2 pounds of ground beef?

Answers

Answer:

36 servings

Step-by-step explanation:

1/4p = 6s

6(1/4p) = 6(6s)

1 1/2p = 36s

given the following exponential function identify whether the change represents growth or decay y= 56(0.91)^x

Answers

Answer:

Decay

Step-by-step explanation:

Any "r" value between 0 and 1 indicates an exponential function in decay. The "r" value is the one in the parentheses and raised to the exponent. In this case, the value is 0.91. This number falls within the "r" value boundaries of a decaying exponential function.

HELPPP PLEASEEEEEE!!!!!!!!!1

Answers

Hi!

We can see the river is a straight line.

This means that the angles that fall upon it are supplementary angles, and will add up to 180 degrees.

Therefore:

[tex]x+2x+21=180[/tex]

Combine like terms:

[tex]3x+21=180[/tex]

Subtract 21 from both sides:

[tex]3x=159[/tex]

Divide both sides by 3:

[tex]x=53[/tex]

Therefore, the value of x is 53 degrees.

Question 9 of 30
Find the surface area of the polyhedron below. The area of each base is 65
cm-.
7 cm
cm
12 cm
cm
cm
Please help asap

Answers

Answer:

A

Step-by-step explanation:

12×4=48cm²

12×3=36cm²

12×2×2×2=96cm²

therefore is 270cm² + 65cm² + 65cm²

=370cm²

Monsieur Dufour prepares bread dough. It needs 4- cups of flour. To measure the amount of flour, he uses a half-cup container. How many half cups does Monsieur Dufour need to prepare his recipe?​

Answers

Answer:

He needs 8 half-cups.

Step-by-step explanation:

hi!

Monsieur Dufour needs 8 half cups of bread dough, because 4x2=8.

a group of 12 people must pay $435 to rent a chalet. to have access to 3 canoes, they must also pay a rental fee of $15 per boat.
how much did each people had to pay?

Answers

Answer: Each person had to pay $40

Step-by-step explanation:

435 + 15*3

435+45 = 480

480/12 = 40

Each person had to pay $40

Help me on this math problem! DUE TONIGHT!! Please read the instructions so you can include all the answers needed!

Answers

Answer:

x=10, first angle is 107, second angle is 73

Step-by-step explanation:

In a test (+5) marks are given for every correct answer and (-2) marks are given for every incorrect answer. Smitha answered all questions and scored (-15) marks though he got 3 correct answers. How many incorrect answer had she attempted?
Any one help I will mark u as BRAINLIEST ANSWER if u help me plssssss! I will not accept wrong answer pls

Answers

Answer:

15 answers

Step-by-step explanation:

To solve this question we need to set up an equation.

Let's name the number of incorrect answers x.

We can set up an equation that's essentially:

(Points for correct answer)*(number of correct answers)+(points for incorrect answer)*(number of incorrect answers)=final score

When we plug in our numbers and variables it looks like this:

5(3)+(-2x)=-15

Simplify

15-2x=-15

Subtract 15 from both sides

-2x=-30

Divide both sides by -2

x=15

This means Smitha attempted 15 wrong answers, and that there were 18 questions in total.

If the number of equally likely sample outcomes of a single stage of an experiment is 4, what is the total number of elements in the sample space if the experiment has 3 stages?

Answers

Answer



64

Step-by-step explanation:

4 x 4 x 4
so it's like you take 4 and 3 stage = 4 x 4 x 4

Hope it helped !
Have a nice day studying ! Mark me as Brainliest too Ty !

peter drove 1.5 hours at an average speed of 40 mph. He then drove for another 40km.
5 miles=8 kilometers
how far did peter drive?
give your answer in miles​

Answers

Answer:

john drove for 3 hours at a rate of 50 miles per hour and for 2 hours at 60 miles per hour. 

Step-by-step explanation:

5. During a field trip, 168 students were
divided into 14 equal groups. How
many students were in each group?

Answers

Answer:

so, 168 divided by 14 = 12

Step-by-step explanation:

14 x 12 =168

Answer:

168÷14=12

12 multiplied by 14 is 168.

A spinner with four sections is spun 30 times.

I accidentally pushed an answer and answer as quickly as possible please I really need this answer now please and thank you

Answers

Answer:

Answer Choice A aka 1/5 (0.2)

Step-by-step explanation:

B = 6/7+8+6+9

= 1/5

IF G=(x)=x^2 find the value of g(4) + g(- 4)

THIS question is from the function chapter.​

Answers

Answer:

here is the answer ask if theres any prob

Pls help! The sum of the digits of a certain two-digit number is 5. When you reverse its digits you
decrease the number by 9. What is the number?

Answers

answer: 32

Consider 2 digit numbers whose sum is 5

5

x

0

5

+

0

=

5

4

x

1

4

+

1

=

5

3

x

2

3

+

2

=

5

Now reverse the digits and compare with original 2 digit number. Starting with 4 1

4

x

1

1

x

4

and

41

14

=

27

9

3

x

2

2

x

3

and

32

23

=

9

the number is

32

The rule is 8,9 what is the 100th number

Answers

The hundredth number in the series as defined in the task content is; 107.

What is the 100th Number?

According to the task content;

The first term of the sequence of numbers is; 8 and evidently, the common difference of the sequence is; 9-8 = 1.

On this note it follows that the 100th number is;

T(100th). = 8 + 99(1) = 107.

Read more on terms in sequence;

https://brainly.com/question/7882626

#SPJ1

Eugene's grandmother is teaching him how to make her salsa recipe. Each batch of salsa requires 1/4 of a cup of red onions. If they have 1 1/2 cups of red onions, how many batches of salsa can they make

Answers

Answer:

6

Step-by-step explanation:

6 times 1/4 is equal to 6/4, which is 1 1/2 :)

1 1/2 divided by 1/4. When dividing fractions, KFC (Keep, Flip, Change).

1 1/2 = 3/2

3 • 4
- - =
2 1

12
— =
2

6

What is a possible value for the missing term of the geometric sequence?

54, ___, 1944, ...

Answers

Answer:

324

Step-by-step explanation:

The missing term in this geometric sequence is the geometric mean of 54 and 1944.

[tex] \sqrt{54 \times 1944} = \sqrt{104976} = 324[/tex]

Answer:

324

Step-by-step explanation:

The formula for the missing term in a geometric sequence is the square root of x times y.

Roger is sixteen years old and eats granola bars. He attends P.R. Walker High School. In this example, is the independent variable.

Roger's age
Roger's school
Roger's diet

Answers

Answer:

Since the Independent variable is something that is modified or controlled in a scientific experiment, it is his age.

If f(x) is an exponential function where f(2)=23 and f(3)=58, then find the value of f(6), to the nearest hundredth.

Answers

The exponential function is given as 3.68 × (2.52)ˣ. Then the value of function at x = 6 will be 942.43.

What is an exponent?

The exponent denotes that the base will rise to a specific level of strength. The base is X, and the power is n.

If f(x) is an exponential function where f(2) = 23 and f(3) = 58.

Then the exponential function will be

f(x) = abˣ

If f(2) = 23, then we have

23 = ab² ...1

If f(3) = 58, then we have

58 = ab³ ...2

Then from equations 1 and 2, we have

a = 3.62 and b = 2.52

Then the function will be

f(x) = 3.68 × (2.52)ˣ

Then the value of f(6) will be

f(6) = 3.68 × (2.52)⁶

f(6) = 3.68 × 256.1

f(6) = 942.43

More about the exponent link is given below.

https://brainly.com/question/5497425

#SPJ1

helppppppppp!!!!! its due soon

Answers

Step-by-step explanation:

a.b=0.6×0.75

=0.45

a/b= 0.6/0.75

=0.8

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