Please help with explanation

Please Help With Explanation

Answers

Answer 1

Answer:

B

Step-by-step explanation:

The formula for a area of the first semi circle is

[tex] \frac{1}{2} \times \pi {r}^{2} [/tex]

where r is the radius

Since 4 is the diameter, 2 is the radius

plug it in

[tex] \frac{1}{2} \times \pi {2}^{2} [/tex]

[tex] \frac{1}{2} \times 4\pi[/tex]

[tex]2\pi[/tex]

so the area of the first circle is 2

[tex]2\pi[/tex]

now let find the second circle

Since the semi circle is twice the area of AB the diameter is 8 so the radius is 4.

Put it in the equation.

[tex] \frac{1}{2} \times \pi {4}^{2} [/tex]

[tex] \frac{1}{2} \times \pi \times 16[/tex]

[tex]8\pi[/tex]

Now let find the third circle

Since it is twice the size of the second circle, the diameter is 16 and the radius is 8.

[tex] \frac{1}{2} \times \pi {8}^{2} [/tex]

[tex] \frac{1}{2} \times 64\pi[/tex]

[tex]32\pi[/tex]

Now let add the area of the semi circle

[tex]32\pi + 2\pi + 8\pi = 42\pi[/tex]


Related Questions

Please do this, after this I can be free for today and have fun

Answers

The answer is y= 35 + 4x because 35 reprints the original amount of the employees and the 4 is how much is added each month

The circumference of a pizza is 12in. What is the Area?

Answers

Answer:

113.04 square inches

Step-by-step explanation:

Eyan bought 234 pounds of apples for $1.32 per pound, 112 pounds of peaches for $1.20 per pound, and some tomatoes, all from a grocery store. The total cost of his purchase was $9.63. How much money did Leyan spend on tomatoes?

Answers

Answer:

the  money spend on tomatoes is $4.20

Step-by-step explanation:

The computation of the money spend on tomatoes is shown below

Let the money spend on tomatoes be x

So

[tex]2 \frac{3}{4} \times \$1.32 + 1\frac{1}{2} \times \$1.20 + x = \$9.63\\\\[/tex]

$3.63 + $1.80  + x = $9.63

x = $9.63 - $3.63 + $1.80

= $4.20

Hence, the  money spend on tomatoes is $4.20

A trash bin has a capacity of 50 gallons. What percentage of its capacity is 5 gallons?

Answers

Answer:

10%

Step-by-step explanation:

5/50 = 10/100

10/100 = 10%

Answer:

5 gallons is 10% capacity.

Step-by-step explanation:

5 gallons accounts for 10% of a container which holds 50 gallons.

[tex](\frac{1}{10} )*50=5[/tex]

Which of the following is the measure of PCR?
Р
8
38°
8
R
A. 380
O
B. 76°
O
C. 90°
O
D. 80°

Answers

9514 1404 393

Answer:

  B.  76°

Step-by-step explanation:

The triangles are congruent (HL), so each has the same angle at vertex C.

  2 × 38° = 76°

Angle PCR is 76°.

Answer:

76

Step-by-step explanation:

what is 3x4^3/34
need ASAP!!

Answers

Answer:

3x4^3/34

3×64/34=192/34=96/17 or 5.64

is 3 1/2 greater than 1 1/15

Answers

Answer:

Yes

Step-by-step explanation:

The whole number in 3 1/2 is 3

the whole number in 1 1/15 is 1

Since 1 1/15 isn't an improper fraction, if it's whole number is smaller then the whole fraction is smaller

since 3>1, 3 1/2 is greater than 1 1/15

Answer:

31/2 > 11/15

Step-by-step explanation:

Question: Is 31/2 greater than 11/15 ?

To solve this let us convert the fractions to decimals.

31/2 = 15.5

11/15 = 0.733

With a look we can easily say that 31/2 is indeed greater than 11/15.

So, 31/2 > 11/15.

The question is in the picture

Answers

Answer:

the last answer

Step-by-step explanation:

What fraction of an hour is 18 minutes?
Give your answer in its simplest form.

Answers

Answer:

3/10

Step-by-step explanation:

An hour is 60 mins

so the fraction would be 18/60

Then you can divide both numbers by 6 to 3/10

The answer is 10/3

please help!


write y-7=3(x+4) in standard form

Answers

Answer:

Step-by-step explanation:

The standard form of a line is ax+by=c

y-7=3(x+4)

y-7=3x+12

y-3x-7=12

y-3x=19

y-7=3(x+4)

y-7=3x+12

y=3x+12-7

y=3x+5

1. In 1980, approximately 6 million women enrolled in college in the United States. The number of women who enroll in college has increased at a rate of 0.14 million women per year. There were about 5.4 million men enrolled in college in 1980, and that number has increased at a rate of 0.08 million men per year. In what year (prior to 1980) were an equal number of men and women enrolled in college? ​

Answers

Answer:

Step-by-step explanation:

First, you can plot this using a table. One side can be 'Women' and the other 'Men'. One the vertical side of it, write '1980', '1981', '1982', etc., for maybe fifteen years to be on the safe side. Then, your starting value is 6 million and 5.4 million, respectively.

Finally, start adding up, It will be, 6.14 million, 6.28 million, etc., and 5.4 million, 5.48 million, etc.

Once you're done, you can circle the year both were the same, and you can even plot this on a graph

Answer:

What he said above me and he is correct

Step-by-step explanation:

Factor the expression: 12r-12

Answers

Answer:

12 (r-1)

Step-by-step explanation:

Both terms have 12 as a common factor, so you can factor it out.

Answer  And  explanation :

common factor

12—12

12(r—1)

solution:

12(r—1)

please answer and make sure youre right i got a 50

Answers

Answer and Step-by-step explanation:

First, let's solve for z.

3z - 1 ≥ -7

We add 1 to both sides.

3z ≥ -6

Now we divide both sides by 3.

z ≥ -2

Since we got this as our answer, that means  Answer choice D is the correct answer.

#teamtrees #WAP (Water And Plant)

PLEASE HELP ASAP, will mark brainliest

Answers

Answer: I think you have to start at 10 and go up i may be wrong but i think you get your answer that ay if I'm right

Step-by-step explanation:

Answer:

You go up ten spaces and then you get the placements of the letters

Step-by-step explanation:

Can you solve number 1 please.

Answers

slope of f is 5
f(x) = 5x + 2
y= mx + b (linear equation)
m = slope b = y-int

slope of g is 2
Slope formula = change in y
——————
change in x
1. Pick two points
I choose (3,3) and (4,5)
(3,3) —-> (x1,y1)
(4,5) —-> (x2,y2)

y2 - y1 5 - 3
———- = ————- = 2
x2 - x1. 4 - 3

Rita is designing a building shaped like a pyramid that's cut off in a plane parallel to its base (this is called a truncated pyramid).The building has a 64 × 64 m square base and is 36 m tall. The cut off section has a 16 × 16 m, square base and is 12 m tall. What is the volume of the buliding?

Answers

Answer:

65,536−1,024

which = 64,512 m^3

Step-by-step explanation:

I took the test!

The volume of the building shaped like a pyramid that's cut off in a plane parallel to its base is  64512 m³

Volume of a pyramid

volume of a pyramid = 1 / 3 Bh

where

B = base areah = height of the pyramid

Therefore,

volume of the building = volume of the whole figure - volume of the cut part

volume of the whole figure = 1 / 3 × (64 × 64) × (12 + 36)

volume of the whole figure = 65536 m³

volume of the cut part = 1 / 3 × (16 × 16) × (12)

volume of the cut part = 1024 m³

Therefore,

volume of the building = 65536 - 1024 = 64512 m³

learn more on pyramid here: https://brainly.com/question/21378886?referrer=searchResults

#SPJ2

What is the vertex of f(x) = 3(x+2)^2 -1

Answers

Answer:

[tex]The~vertex~of~parabola~f(x) = a(x-h)^2+k~is~(h,k).\\Given~equation~of~parabola~is:\\f(x) = 3(x+2)^2-1\\So,~ h =-2 ~and~k=-1\\Therefore,~(-2,-1)~is~the~vertex~of~parabola.[/tex]

18 (03.06 MC
are filled the glass shown below.comeletely with water. The total amount of water that you poured into the glasses a 120 cubic centimeters. What is the height of glass 17 Round your new to the nearest hundreditres (2.14.) Note that all
mentre comers and images are not to scale (pont)
.

Answers

Answer:

sasuke

Step-by-step explanation:

B is The power W produced in an electrical circuit is directly proportional to the current I that flows through the circuit.  If a power of 750 watts is produced by a current of 9 amps, what power would be produced by a current of 6 amps?

Which of the following expressions represents a value greater than 4/5 ?

Answers

Answer:

For the two fractions 4/5 and 5/6, the least common denominator is 30. The fraction 4/5 is equivalent to 24/30 (To get this I multiplied both the numerator and denominator by 6). ... Since 25 is greater than 24, 25/30 (or originally 5/6) is the larger fraction

Step-by-step explantion

Compare fractions with the same denominator by determining the relationship between the numerators. For example, 3/5 is less than 4/5 because 3 is less than 4

i need help im doing make up work

Answers

Answer:

thats a non-linear function

Step-by-step explanation:

the line is not straight

Find the remainder when x^100 - x^99 + x^98 − · · · − x + 1 is divided by x + 1.

Answers

Answer:

The remainder is 101.

Step-by-step explanation:

We are dividing:

[tex](x^{100}-x^{99}+x^{98}...-x+1)\div(x+1)[/tex]

By the Polynomial Remainder Theorem, if we are dividing a polynomial P(x) by a binomial in the form (x - a), the our remainder will be P(a).

The divisor is (x + 1). Therefore, our a = -1.

Then the remainder will be:

[tex]P(-1)[/tex]

We can rewrite our polynomial as:

[tex]P(x)=-(x^{99}+x^{97}...+x^3+x)+(x^{100}+x^{98}...+x^2)+1[/tex]

Each of the parentheses contain fifty terms. -1 to any odd power is -1, and -1 to any even power is 1. Therefore:

[tex]P(-1)=-(-50)+(50)+1[/tex]

Evaluate:

[tex]P(-1)=101[/tex]

The remainder is 101.

Answer:

The Answer is 101

Step-by-step explanation:

101 is how much is remaining

Find the slope of the line
y=-6/5x + 4/9

Answers

Answer:

-6/5

Step-by-step explanation:

slope =coefficient of x

A shipping container will be used to transport several 70-kilogram crates across the country by rail. The greatest weight that can be loaded into the container is 23500 kilograms. Other shipments weighing 9700 kilograms have already been loaded into the container. What is the greatest number of 70-kilogram crates that can be loaded into the shipping container?

Answers

Subtract what has already been loaded from total amount allowed:

23500 - 9700 = 13,800

Divide the amount left by the weight of each crate:

13,800 / 70 = 197.14

They can load 197 crates.

A cheese processing plant keeps the heavy cream for their product in a silo with a dome top. The silo has an overall diameter of 25. The height of the cylinder part is 31 feet tall. What is the volume of the silo as a whole? Round your answer to the nearest hundredth, if necessary. Use 3.14 for pi.​

Answers

V = 3.14(r^2)h
V = 3.14(12.5^2)(31)
V = 15209.38

Tina has an old fish tank in the shape of a circular cylinder. The tank is 2 feet in diameter and 6 feet high. How many cubic feet of water does it hold?

Answers

Answer:

The tank can hold 18.84 cubic feet

Step-by-step explanation:

Given

Shape: Cylinder

[tex]D = 2ft[/tex] -- Diameter

[tex]H = 6ft[/tex] -- Height

Required

Determine the volume

First, calculate the radius (r)

[tex]r = \frac{1}{2}D[/tex]

[tex]r = \frac{1}{2}*2ft[/tex]

[tex]r = 1ft[/tex]

The volume (V) of the tank is:

[tex]V = \pi r^2h[/tex]

Substitute values for r and h

[tex]V = 3.14 *1^2*6[/tex]

[tex]V = 3.14 *1*6[/tex]

[tex]V = 18.84[/tex]

Hence, the tank can hold 18.84 cubic feet

PLEASE QUICK WILL GIVE BRAINLESS
Which number is the additive inverse of -44 -422 -47 1 2 2​

Answers

Answer:

Multiplicative inverse of 2 1 2

The opposite of 212 is −12 . The reciprocal of 212 is 25

Step-by-step explanation:

The guy up there is right :(

Multiply. Assume t is greater than or equal to zero, and write your answer in simplest form.

Answers

Answer:

t is greater than or equal to 0:

[tex] t \: \geqslant 0[/tex]

the price of 2_mangoes are 10 rupees. what is the price of one mango?​

Answers

10 divided by 2 is 5
So one mango is 5 rupees

Directions: Each quadrilateral below is a parallelogram. Find the missing measures.
Will give brainliest for full answer

Answers

Answer:

1. ST = 3, VT = 10, Angle v = 48, Angle T = 132

2. GH = 13, FG = 20, Angle F = 78, Angle G = 102, Angle H = 78

Step-by-step explanation:

In a parallelogram:

Opposite sides and angles are congruent or equal each other

Consecutive angles (angles right next to each other) equal 180.

HELP PLZ
What is the equation of a line perpendicular to the x-
axis that passes through the point (-5,-1)? What is the
slope of this line?

Answers

Answer:

The equation is x = -5

The slope is 0

Step-by-step explanation:

If the line is perpendicular to the x axis, that means it is a vertical line.

Vertical lines only reach one x value, which is -5 in this case.

So, the equation will simply be x = -5.

The slope is 0.

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