I really need help someone please help

Answer:

2080

Step-by-step explanation:

The surface area of the cylinder is 2080π square feet. Answer: 2,080 pi feet squared.

A cylinder is a 3D solid form made up of two bases that are parallel and identical and are connected by a curving surface. These bases resemble spherical disks. The axis of the cylinder form is a line drawn through the center or connecting the centers of two circular bases.

The formula for the surface area of a cylinder is:

SA = 2πr² + 2πrh

where r is the radius of the base of the cylinder, h is the height of the cylinder, and π is the mathematical constant pi (approximately equal to 3.14159).

Since the diameter is given as 40 feet, the radius is half of that, or 20 feet.

So, substituting the values into the formula, we get:

SA = 2π(20)² + 2π(20)(32)

SA = 2π(400) + 2π(640)

SA = 800π + 1280π

SA = 2080π

Therefore, SA = 2080π.

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Answer: D

Step-by-step explanation:

Because  if y is the number of light bulbs he orders and he always orders three extra or three more that means that for any number of orders that he makes there will be three more. That three will never change since he always others three more than he ordered.

Answer:

y = x + 3

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

It is the only equation with addition in all the parenthesis.

Answer:

about 12,000

Step-by-step explanation:

3,467 is rounded to 3,000

8,908 is rounded to 9,000

Answer:

A plane is a one dimensional figure

Answer:

THEOREM: If a quadrilateral has consecutive angles which are supplementary, then it is a parallelogram. BRAINLIEST LOL :)

Step-by-step explanation:

Answer:

TRUE

Step-by-step explanation:

ITS RIGHT MARK ME BRAINLIEST :) :) :) :) ;) ;)

Answer:

44

Step-by-step explanation:

Answer:

The answer is 44

Step-by-step explanation:

Hope this HELPED you

Decimal Form:

1.15470053

…

Step-by-step explanation:

The exact value of sec(30°) is 2√3 / 3.

We have,

To find the exact value of sec(30°), use the trigonometric identity:

sec(θ) = 1 / cos(θ)

Now,

cos(30°) = √3 / 2

Now, substitute this value into the formula for sec(θ):

sec(30°) = 1 / cos(30°) = 1 / (√3 / 2)

sec(30°) = 2 / √3

To rationalize the denominator, multiply the numerator and denominator by √3:

sec(30°) = 2 / √3 * √3 / √3

= 2√3 / 3

Therefore,

The exact value of sec(30°) is 2√3 / 3.

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Answer:

D

Step-by-step explanation:

The volume (V) of a sphere is calculated as

V = [tex]\frac{4}{3}[/tex]πr³ ( r is the radius ), thus

V = [tex]\frac{4}{3}[/tex]π × 5³

   = [tex]\frac{4}{3}[/tex]π × 125 = [tex]\frac{4(125)}{3}[/tex]π =  [tex]\frac{500}{3}[/tex]π units³ → D

The volume of the sphere of the given figure is [tex]\frac{500}{3} \pi units^{3}[/tex] .Option D is correct.

It is given that the radius(r) of the sphere is 5 unit.

It is required to find the volume of the sphere of the given figure.

As we know the volume of the sphere is:

V = [tex]\frac{4}{3} \pi r^{3}[/tex]

Where, r represents the radius of the sphere.

Now putting the value of 'r' in the formula,

V = [tex]\frac{4}{3}\pi (5)^{3}[/tex]

V = [tex]\frac{4}{3} \pi[/tex]×(125)

V = [tex]\frac{4 (125)}{3}\pi[/tex]

V = [tex]\frac{500}{3} \pi[/tex] [tex]unit^{3}[/tex]

Thus, the volume of the sphere of the given figure is [tex]\frac{500}{3} \pi units^{3}[/tex] .

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Answer:

Cos 50

Step-by-step explanation:

Answer: D.

This is tricky.

Think of the equation as an equation for a line

where in this case.      

[tex]C=5/9(f-32)[/tex]

or

[tex]C=5/9f-5/9(32)[/tex]

You can see the slope of the graph is [tex]5/9[/tex]  which means that for an increase of 1 degree Fahrenheit, the increase is [tex]5/9[/tex].

[tex]c=5/9(f)[/tex]

[tex]c=5/9(1)=5/9[/tex]

Therefore, statement I is true. This is the equivalent to saying that an increase of 1 degree Celsius is equal to an increase of [tex]9/5[/tex] Degrees Fahrenheit

[tex]c=5/9(f)[/tex]

[tex]1=5/9(f)[/tex]

[tex]f=9/5[/tex]

Since [tex]9/5=1.8[/tex] Statement 2, is true.

The only answer that has both statement I and statement II as true is D, but if you have time and want to be absolutely thorough, you can also check to see if statement III (an increase of [tex]5/9[/tex] degree Fahrenheit is equal to a temperature increase of 1 degree Celsius) is true:

[tex]c=5/9(f)[/tex]

[tex]c=5/9(5/9)[/tex]

[tex]c=25/81[/tex] which is ≠ 1)

An increase of [tex]5/9[/tex] degree Fahrenheit leads to an increase of [tex]25/81[/tex]

not 1 degree, Celsius, and so Statement III is not true.

The final answer is D.

I hope this helped x

Answer:

D!!!!

Step-by-step explanation:

Answer:

A. an increase in the average speed a car travels and a decrease in the time it takes to reach the destination

Step-by-step explanation:

As an increase in the speed of the car decrease the time it takes to reach the destination.

Correlation is the dependence of any statistical relationship between the causal or may be two random variables. It usually indicates the type of association.

As the increase in the car speed will lead to a decrease in the distance and the time it takes to reach the destination. Hence positively correlated.

Find out more information about the causation.

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Answer:

Step-by-step explanation:

(4)(3) = 12

x^3(x^[-5]) = x^(3 - 5) = x^(-2)

                                                                                                          12

Combining these in multiplication we get the final answer    ------------

                                                                                                         x^2

Answer:

I think it's the 2nd one.

I didn't learn this topic yet.

Answer; C, 17

Step-by-step explanation: add all the numbers and divide by 7

Answer:

c

Step-by-step explanation:

Answer:Awnser choice c

Step-by-step explanation:

Answer:

X=2

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

2(5.5x+1)=24

(2)(5.5x)+(2)(1)=24(Distribute)

11x+2=24

Step 2: Subtract 2 from both sides.

11x+2-2=24-2

11x=22

Step 3: Divide both sides by 11.

11x/11=

22/11

X=2

Hope this helps

Answer:

C

Step-by-step explanation:

Answer:

D because 45*2

Step-by-step explanation:

Answer:

i believe the answers are:

false

true

true

Step-by-step explanation:

it's been a while, so im not exactly sure? but im pretty sure this is right.

Answer:

Same Im pretty sure it is:

False

True

True

Step-by-step explanation:

Answer:

4.5

Step-by-step explanation:

9 is 3 times more than 3

4.5 is three times more than 1.5

:)

brainliest? ily

Answer:

Step-by-step explanation:

3p^4 and 4p =  p(3p^3 and 4)

14xy^2 and 21y^3 =   7y^2(2x and 3y)

Answer:

Median : 59

Lower quartile : 53

Upper quartile : 66

Least age: 41

Greatest age:  79

Step-by-step explanation:

In a ordered list, the median is the number at the half position. With 23 numbers, the half position the 12th number (there are 11 number above and blow it)

41 42 44 48 52 53 53 53 56 57 57 59  60 61 63 64 64 66 67 69 74 77 79

The lower quartile  is the number at the half position, only considering the first data points until the median.

41 42 44 48 52 53 53 53 56 57 57

The upper quartile  is the number at the half position, only considering the data points after the median.

60 61 63 64 64 66 67 69 74 77 79

The least and greatest ages are easily found.

Step-by-step explanation:

median = 58

lower quartile = 53

upper quartile = 66

leastest age = 40

greatest age = 82

Answer:

16

Step-by-step explanation:

theres 4 different subjects that could be in each of 4 different slots, eg, science, ss, ela, or math could be in slot one, or the same for slot two, and so on and so forth.4 x 4 = 16

The required number of ways to study 4 different subject to first four classes is 16

If we have m number of works to do and n number of peoples then the number of ways to do the work is mxn

Here we have given

Number of subjects = 4 that is math, science, art and social science

Number of classes = 4

Therefore the number of way to attending the class is

4x4 = 16

This is the conclusion to the answer.

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Answer:  Graph attached.

Step-by-step explanation:

It is easier to figure it out if you can see it.

Also easier if you rewrite the equation in quadratic form:

y = 4x² + 4x + 5

Answer:

8(a+c)(6)−(

4a−8c

12

)

=

143

3

a+

146

3

c

Step-by-step explanation:

Answer:

copy it then paste it

Step-by-step explanation:

Answer:

Volume = ⅔πr³

Step-by-step explanation:

Given

Shape: Cone

Height = 2 * Radius

Required

An expression for the volume of the cone.

Let h and r represent the height and the radius of the cone, respectively.

So, h = 2r.

So solve this question, we simply write out the formula to calculate the volume of a cone.

Volume = ⅓πr²h

Substitute 2r for h.

Volume = ⅓πr²(2r)

Volume = ⅓πr² * 2r

Volume = ⅔πr³

Hence, the above expression represent the volume of a cone when h = 2r

The expression that represents the volume of the cone in cubic units is: ⅔πr³.

Volume of cone = ⅓πr²h

r is the radius; h is the height of the cone.

Given:

Therefore, substitute the values into the formula for the volume of a cone:

Volume of cone = ⅓π(r²)(2r)

Volume of cone = ⅔πr³

Therefore, the expression that represents the volume of the cone in cubic units is: ⅔πr³.

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Answer:

erm

Step-by-step explanation:

4, 5 27

Answer:

Central angle = 126°

Step-by-step explanation:

Area of the sector = 140π cm²

Radius of the given circle = 20 cm

Since area of the sector = [tex]\frac{\theta}{360}\times (\pi r^{2})[/tex]

[where θ is the central angle formed by the sector at the center]

                               140π = [tex]\frac{\theta}{360}(\pi)(20)^{2}[/tex]

                                    θ = [tex]\frac{(140\pi)\times 360}{400\pi }[/tex]

                                    θ = 126°

Therefore, central angle of the sector will be 126°.

Answer:

cm 32

Step-by-step explanation: