plzzzzz helppppp im tryna passss my class

Given:

So,

Outer radius = R = D/2

=> R = (80 ft)/2

=> R = 40 ft

Inner radius = r = d/2

=> r = (40 ft)/2

=> r = 20 ft

Area of paved pathway = πR² - πr²

= π(R² - r²)

= π(R + r)(R - r)

= π(40 + 20)(40 - 20) ft²

= π(60)(20) ft²

= 3.14 * 1200 ft²

= 3768 ft²

Answer:

5.3

Step-by-step explanation:

pythagorean theory :,)

[tex]a^{2} + b^{2} = c^{2}[/tex]

the legs are [tex]a[/tex] and [tex]b[/tex], while the hypotenuse (the longest side) is [tex]c[/tex]

fill in the equation with the information u have and simplify so

[tex]a^{2} + 6^{2} = 8^{2}[/tex]

[tex]a^{2} + 36 = 64[/tex]

now get the variable ([tex]a[/tex]) by itself

[tex]a^{2} + 36 = 64\\[/tex]

(subtract 36 on both sides)

[tex]a^{2} = 28[/tex]

[tex]a = 5.3[/tex]

square root of both sides ≈ 5.3

(you could also multiply the square root of 7 by 2)

9514 1404 393

Answer:

  3

Step-by-step explanation:

The ratio is ...

  f(x+1)/f(x) = (10·3^(x+1))/(10·3^x) = 3^(x+1-x) = 3^1 = 3

The common ratio is 3.

_____

As you may have noticed, it is the base of the exponential term.

Answer:

$82

Step-by-step explanation:

make 25% into a decimal which equals .25, then do 328. x .25 which equals $82

Answer:

1st one........,..............

Answer:

m<Y = 68°

Step-by-step explanation:

A tangent drawn to a circle makes a 90° angle with the radius that intersects it at the point of tangency. That means that m<X = 90°.

The sum of the measures of the angles of a triangle is 180°.

m<X + m<Y + m<Z = 180

90 + m<Y + 22 = 180

m<Y + 112 = 180

m<Y = 180 - 112

m<Y = 68

Answer:

The first one is the first picture.

The second answer is zero.

I don't know how 2 do the 3rd sry

Step-by-step explanation:

Step-by-step explanation:

A pair of opposite rays are two rays that have the same endpoint and extend in opposite directions. Rays are always named with two points and the first point in the name must be the endpoint. So, when you name opposite rays, the first letter in the name of both rays must be the same.

Step-by-step explanation:

c a

Answer:

It's actually B

Step-by-step explanation:

The measures of the sides are x , x , and x√2 . In a 45°−45°−90° triangle, the length of the hypotenuse is √2 times the length of a leg. To see why this is so, note that by the Converse of the Pythagorean Theorem , these values make the triangle a right triangle.

So x = 4 in this example and the side measures would be 4, 4, and 4√2 which is B

Answer:

Step-by-step explanation:

x^2 - 3x - 2 + 2x - 1

x^2 - x - 3

answer is C

Answer:

39 is sydney age

39 +39 is 78 and they said two times

I think ur answer B.) srry if wrong .

Also i have something important to say.

(You may or may not heard of it.)

Feluka,Iahivintha an other username are posting links that give you viruses. DON'T TRUST LINKS.

THIS is the link an there is a new one PLEASE DON'T CLICK IT c utt.ly/nz6 VGda  and  is.gd/ qKzp BU

There more and more people doing this.

If you see this link don't click it. IT will send a virus and download bad stuff on your device. Please repost so people wont fall for it. Have a good day or night. <3

Answer:

im sry but i need halppppp with this

Step-by-step explanation:

Answer:

it is 2.6 that is the answer

Answer:

x

x

are the same

Step-by-step explanation:

when you plug in g(x) into f(x)

f(x)=16((1/4)(x)^.5)==x

then vice versa

g(x)=(1/4)((16x^2)^.5)==x

They are the same and, therefore, inverses of each other.

Answer:

120

Step-by-step explanation:

Answer: 120

12 x 10 = 120

Answer:

23

Step-by-step explanation:

3c + 11

3(4) + 11

12 + 11

23

Answer:25.0

Step-by-step explanation: 5.0 times 5.0

A newspaper and magazine cost 220 together the newspaper cost 140 less than the magazine, then the cost of magazine is 180 and the cost of newspaper is 40.

Two or more expressions with an Equal sign is called as Equation.

Given,

A newspaper and magazine cost 220

the newspaper cost is 140  less than the magazine

Let x be the cost of magazine

x-140 is the cost of newspaper

x+x-140=220

2x-140=220

Add 140 on both the sides

2x=220+140

2x=360

Divide both sides by 2

x=180

and x-140=180-140=40

Hence, the cost of magazine is 180 and the cost of newspaper is 40.

To learn more on Equation:

https://brainly.com/question/10413253

#SPJ5

Answer:

180cm^3

Step-by-step explanation:

Given data

Height b=15 cm

Base a= 6cm

The expression for the volume of a pyramid is

V=a^2h/3

Substitute

V= 6^2*15/3

V= 36*5

V=180cm^3

Hence the volume is  180cm^3

Answer: 18 miles west

Step-by-step explanation:

The mall is west of the highway.

The hospital is then west of the mall.

If the hospital is west of the mall which is already to the west of the highway, the Hospital must be west of the highway as well.

The hospital is 12 miles west of the mall which is then 6 miles west of the highway. As they are both west, it is a continuous distance and we can simply add their distances up and assume the distance is linear.

The distance between the hospital and the highway is therefore:

= 12 + 6

= 18 miles west

False.

Hope This Helps You!

Good Luck Studying ^-^

Answer:

False

Step-by-step explanation:

Answer:

the total of straw are going to be 9 and there will be a 1/9 chances of getting the short straw. while each friend picks a straw the probability of getting a short straw is going to be higher because the amount of straws are going to be lessened.

Answer:

2.5 mm

Step-by-step explanation:

Answer: Final Answer  

x=15,x=−15

Step-by-step explanation:

yes, i can solve it.

x = 15

☆o(^▽^)o☆

Ta-Da