Please someone help me
Find the first derivative of cos2(π/4)

Answers

Answer 1

Exact form: (\πcos(2))/(4)

Decimal Form: − 0.32684096

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Related Questions

PLEASE HELP. NO LINKS. NEED REAL EXPLANATION.

Find the volume of a cone with a height of 8in and a base radius of 3in.

Use the value 3.14 for pi, and do not do any rounding. Be sure to include the correct unit in your answer.

Answers

Answer:

75.36 in3

Step-by-step explanation:

Mark me brainliest?

This is the correct answer with the right steps to help you solve this problem. The Formula for the cone is (pi r^2)(h)/ 3

A nanosecond is a unit used to measure the speed of a computer. One
nanosecond is equivalent to 0.000000001 of a second. Which of these is
equivalent to one nanosecond?
F 1.0 x 109 seconds
G 1.0 * 10-9 seconds
H 1.0 x 108 seconds
J 1.0 x 10-8 seconds

Answers

Answer:

G 1.0=10^-9, exponents are usually used with a ^ yw

Step-by-step explanation:

Students in the gardeing club are planting a flower garden. They have a total of $200 to spend. They spent $80 on the much. how many packs of bulds can they buy if eachpack cost $30

Answers

Answer:

they can by 4

Step-by-step explanation:

T, U, and V are
collinear. Suppose
U is between T and
V and that the
following is true:
TU = 7x - 4,
UV = 6x + 10, and
TV = 45.
Find TU.

Answers

Lilac linear switches help create a thicker noise TRUE TU

The value of TU is 17.

Here,

T, U, and V are collinear.

U is between T and V

TU = 7x - 4,

UV = 6x + 10, and

TV = 45.

We have to find TU.

What are collinear points?

Three or more points are said to be collinear if they are lie on a single straight line.

Now,

T, U, and V are collinear.

U is between T and V

TU = 7x - 4,

UV = 6x + 10, and

TV = 45.

Clearly, TU + UV = TV

After putting the given values we get;

TU + UV = TV

(7x - 4) + (6x + 10) = 45

13x + 6 = 45

13x = 45 - 6

13x = 39

x = 3

Hence, TU = 7x - 4 = 7 * 3 - 4 = 21 - 4 = 17

So, The value of TU is 17.

Learn more about the collinear points visit:

https://brainly.com/question/15984206

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a local theater is showing an animated movie. They charge $5 per ticket for a child and $12 per ticket for an adult. They sell a total 342 tickets and make a total of $2550. Write and solve a system of equations that represents this situation.

Answers

Answer:

5cx12a=342t+2550

Step-by-step explanation:

C=Child

A=Adult

T=Ticket

Find the area of the triangle

Answers

Answer:

32

Step-by-step explanation:

because the formula if a triangle is base times height divided by 2 which is 16x4÷2=32

Eric's cell phone service costs $40.00 a month for unlimited calls. He also pays $0.02 for each text message he sends Which equation represents the total costin dollars, for a month when Eric sends text messages?

Answers

Answer:

the answer is d

Find the area of the figure.

40.8 cm2

1128 cm2

47.52 cm2

33.7 cm2

Answers

Answer:

answer is 47.52 cm2

Step-by-step explanation:

follow me please

i really need help i am really bad at math

Answers

The answer to this questions is c

What is the value of x in the equation 6(x + 1) – 5x = 8 + 2(x - 1)?
o
AO
12

Answers

I think it is 0, but im sorry if it is wrong

Answer:

x=0

Step-by-step explanation:

First distribut the 6 and 2

6x+6-5x=8+2x-2

Then put the x to one side and the coefficients to the other side

6x-2x-5x=8-2-6

Simplify

-x=0

x=0

By the way, can you follow me on Brainly?

Thanks!

I've given up on math, help would be wildly appreciated

Answers

Answer:

1. [tex]\frac{2}{3}[/tex] probability

2. head represents cats (let's say) and tails represent dogs, flip two coins to determine whether the family has 2 cats or 2 dogs or 1 cat and 1 dog.

3. Take two coins, flip them, record heads and tails of each flip for 50 flips (I ain't no doing this)

4 - 6. answer these questions based on the data you got...

The End

A factory manufactures 9 x 105 packs of gum each month. They send these out to 16 different distribution centers. If each distribution center gets the same number of packs, how many are sent to each center?

Answers

Answer: do you meant they produce 900 000 packs each month?

Then each distributor gets 900 000 /16= 56250 packs

PLEASE HELP ME
At a digital store, Jay paid a total of $31.35 for games and movie rental. He rented 6 games at $3.99 each game and 3 movies.

How much did Jay pay per movie?

$23.94
$3.48
$7.41
$2.47

Answers

Answer: 2.47

Step-by-step explanation:

6 times 3.99 is 23.94

31.24 minus 23.94 is 7.30

2.47 times 3 is 7.30

I think it is 2.47$

A bag of apples weighs 7 4/10 pounds.a crate of bananas is 5 times as heavy as the apples. What is the total weight of the fruit

Answers

Answer:

44.4

Step-by-step explanation:

7 4/10x5=37

37+7 4/10=44.4

A city has a population of 2,549,786 people. Written as the product of a single digit and a power of ten, this number is 3 x 10 to what power? *

Answers

Answer:

3 x 10^6

Step-by-step explanation:

Answer:

3 x 10^6

Step-by-step explanation:

Tatiana buys a bag of fertilizer at the store. It reads 30-15-10. How much phosphorous is in the fertilizer? 30% 10% 15%

Answers

Answer:

Answer is 15%. It goes in order of Nitrogen, Phosphorous, Potassium. (N-P-K).

Step-by-step explanation:

Find the volume of the cylinder.

Answers

Answer:

Step-by-step explanation:

V=πr^2h is the equation for volume of a cylinder.

the radius is half of 50 so 50/2=25.

then 75 is the height so you plug the vaules in

V=(3.14)((25)^2)(75)

then multiply and you get 147187.5 rounded to the nearest whole number that is 147188

hope this helps :)

For which equation is g = 0 not the solution?

12 g = 0
3 g = 30
g + 8 = 8
9 g = 0

Answers

Answer:

3g = 30

Step-by-step explanation:

Well, lets check each one to see if any leaves g = 0

12g = 0      (Given)

÷12   ÷12    (Get "g" on its own)

g = 0          (0 ÷ 12 = 0)

We know it is not this one since g = 0

3g = 30    (Given)

÷3     ÷3    (Get "g" on its own)

g = 10       (30 ÷ 3 = 10)

This is our answer since g = 10 in this equation, and not g = 0 we know that this is our equation.

Just in case, I will do the other options just not as in-depth!

g + 8 = 8

   -8    -8

g = 0

9g = 0

÷9    ÷9

g = 0

Hope this Helps! :)

Have any questions? Ask below in the comments and I will try my best to answer.

-SGO

what is the surface of a cubiod sides 2cm,3cm and 5cm?

Answers

Answer: A cuboid has 6 rectangular faces. To find the surface area of a cuboid, add the areas of all 6 faces. We can also label the length (l), width (w), and height (h) of the prism and use the formula, SA=2lw+2lh+2hw, to find the surface area.

Step-by-step explanation:

Step-by-step explanation:

2×3×2+2×5×2+3×5×2

12+20+30

=62

can someone help me please

Answers

9514 1404 393

Answer:

  see attached

Step-by-step explanation:

The sum is formed by adding corresponding elements. For example, the lower right element (row 3, col 3) of the sum is 5+4 = 9

The larger of 2 numbers is twice the smaller. If the larger is x, what is the smaller

Answers

Answer:

Step-by-step explanation:

x/2

Debby used a garden hose to fill up a 4-gallon bucket in just 1/6 of a minute. At what rate does water flow through the hose?​

Answers

Answer:

24 gallons

Step-by-step explanation:

Nkechi wants to use a one-sample z interval to estimate what proportion of candies in a bag are red. She takes a random sample of 24 of the 80 total candies and finds that 18 of the candies in the sample are red. Which conditions for constructing this confidence interval did Nkechi's sample meet? Choose all answers that apply

Answers

Answer: The data is a random sample from the population of interest.

Step-by-step explanation: The condition is met since she randomly selected the sample from the population of interest.

The data is a random sample from the population of interests.(Option A), and individual observations can be considered independent.(Option C)

What are the conditions for valid inference about one proportion?Random sample: The sample should be taken randomly.Normal distribution of proportion: The sampling distribution of the proportion we're taking about should be normally distributed.Independent observations: Each of the observations must be independent.

The missing options are:

A. The data is a random sample from the population of interests.

B The observed counts of successes and failures are both sufficiently large.

C. Individual observations can be considered independent.

For this case, we're given that the sample was random.

Sample size is 24,which is not sufficiently large (usually we take > 30 as sufficiently large size).

Also, each candle was independent for being red colored.

Thus, the data is a random sample from the population of interests.(Option A), and individual observations can be considered independent.(Option C)

Learn more about valid inference about proportion here:

https://brainly.com/question/3663642

An investor has an account with stock from two different companies. Last year, her stock in Company A was worth $580 and her stock in Company B was worth $5950. The stock in Company A has increased 5% since last year and the stock in Company B has increased 18%. What was the total percentage increase in the investor's stock account? Round your answer to the nearest tenth (if necessary). plz dont do for points do to help meeee!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

I think it’s 7.8 repeating

Step-by-step explanation:

2 to the power of 12= 4,096. How many other whole numbers can you raise to a power and get 4,096?

Answers

Answer:

the numbers are 4,8,16,64 and 4096 using laws of indices

Answer:80017

Step-by-step explanation:

80017

Can someone please help me and write out the answer​

Answers

Answer:

y = 2x+1

Step-by-step explanation:

From the question,

Using the equation of a straight line

y = mx+c................. Equation 1

Where m = slope of the line, c = intercept on the y axis.

From the graph, The two point co-ordinate shown os

Point 1 = (-2,0)

Point 2 =(6,4)

s = (y₂-y₁)/(x₂-x₁).............. Equation 2

Where y₂ = 6, y₁ = -2, x₂ = 4, x₁ = 0

Substitute into equation 2

s = (6-(-2))/(4-0)

s = (6+2)/4

s = 8/4

s = 2.

Also from the graph,

c = 1

Substitute these values into equation 1

y = 2x+1

Hence the equation of the line is y = 2x+1

help me??? lol i dont get this

Answers

Answer: 200 in squared

Step-by-step explanation:

Each of the triangles in this picture are the same. You can tell because it's a square, and because of the dotted line.

Take the white triangle and substitute it for one of the black ones. Now, you have this.

Now, just do 10 * 20

= 200

A store sells cans of tomatoes priced as shown.


Canned Tomatoes
Size Cost
10 ounces $0.89
15 ounces $1.29
18 ounces $2.26
32 ounces $3.39


Which size can of tomatoes has the lowest cost per ounce?

Answers

Answer:

I think the answer is b

Step-by-step explanation:

1.29/15= 0.086 this is the lowest cost out of all them

Answer: yea person on top of me is  right b 15 ounce

Step-by-step explanation:

Find the volume of the figure

Answers

Answer:

384

Step-by-step explanation:

L times W times H

I will give brainliest!! Pls help!!!

Answers

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the photo is upside down... i cannot help when it’s like this
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