Use 3.14 for pie it’s __Units squared

Use 3.14 For Pie Its __Units Squared

Answers

Answer 1

The Area of the figure ≈ 19 units²

What is the Area of a Semicircle and a Triangle?

Area of a semicircle = 1/2(πr²), where r is the radius.

Area of a triangle = 1/2(b)(h), where b is the base and h is the height of the triangle.

The figure can be decomposed into a semicircle and a triangle.

Area of the figure = 1/2(πr²) + 1/2(b)(h)

r = 1/2(7) = 3.5 units

π = 3.14

b = 7 units

h = 3 units

Substitute

Area of the figure = 1/2(3.14)(3.5²) + 1/2(7)(3)

Area of the figure ≈ 19 units²

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Related Questions

The midpoint of AB is M(-6, 4). If the coordinates of A are (-7, 2), what are the
coordinates of B?

Answers

The coordinates of B is (-5, 6).

In geometry, a coordinate system is a system that uses one or more numbers, or coordinates, to uniquely determine the position of the points or other geometric elements on a manifold such as Euclidean space

What is section formula ?

The section formula helps in determining the coordinates of a point which facilitates division of the line joining two points in a ratio. This takes place either internally or externally.

P (x, y)= (c*m + a*n)/(m + n) , (d*m + b*n)/(m + n ).

Given:

let the coordinates of B (x, y)

M is midpoint M(-6,4) and coordinates of A are (-7, 2)

Using section formula

-6 = (x -7)/2

-12 = x -7

x = -5

and, 4 = y+2/2

8 = y+2

y = 6

Hence, the coordinates of B is (-5, 6)

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-5/3,-2,-7/3,-8/3 arithmetic

Answers

Answer:

Step-by-step explanation:

comment on the comment section with a complete question I will help you there please

Can someone please help me. This is about indices

Answers

Answer:

x = 10/9

Step-by-step explanation:

Solve:

27^(3x-2) = 81

When solving equations in exponential form make sure the two bases on both sides are the same.

3^3(3x-2) = 3^4

Once the two bases are the same you cancel them out and used its exponent to solve the equation.

3(3x-2) = 4

9x-6 = 4

Add 6 to both sides.

9x-6+6 = 4+6

9x = 10

Divide both sides by 9.

x = 10/9

Therefore x = 10/9.

Using the pencil,plot the point (-3,-6)

Answers

Answer:

-3 will be on the -x axis n the -6 will be on the -y axis so both will meet at a point.

Step-by-step explanation:

that is all I understand am not sure if I am ryt

Check out the attached photo
Let me know in the comments, if something is not understandable

Find x for this equation
Show clear algebraic fraction

Answers

Answer:

x = [tex]\frac{8}{3}[/tex]

Step-by-step explanation:

[tex]\frac{2}{5x-2}[/tex] = [tex]\frac{3}{6x+1}[/tex] ( cross- multiply )

3(5x - 2) = (2(6x + 1) ← distribute parenthesis on both sides )

15x - 6 = 12x + 2 ( subtract 12x from both sides )

3x - 6 = 2 ( add 6 to both sides )

3x = 8 ( divide both sides by 3 )

x = [tex]\frac{8}{3}[/tex]

A city places street lights at equal intervals along a city street beginning 3/8 mile from one end of the street. If the street is 7/8 mile long, how many street lights will the city use? Explain.

Answers

The number of street lights that will be needed is 3 street lights.

How to calculate the fraction?

From the information, it was stated that the city places street lights at equal intervals along a city street beginning 3/8 mile from one end of the street. If the street is 7/8 mile long,

The number of street lights needed will be:

= 7/8 ÷ 3/8

= 7/8 × 8/3

= 7/3

= 3 street lights.

Therefore, the number of street lights that will be needed is 3 street lights.

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Trey Invested his savings in two Investment funds. The $12,000 that he invested in Fund A returned a 1% profit. The amount that he invested in Fund B returned a 6% profit. How much did he invest in Fund B, if both funds together returned a 3% profit?

Answers

The amount Trey invested in Fund B is $8,000.

Profit is a residual income, It is the gain amount from any kind of business activity. In short, if the selling price (SP) of the product is more than the cost price (CP) of a product, then it is considered as a gain or profit. while return is a total revenue. Profits may be negative, whereas returns, such as wages and interest are always positive.

amount invested in Fund A = $12,000            (given)

profit returned by Fund A =  1% of $12,000    (given)

= 1/100*$12,000

= $120

Let amount invested in Fund B = x                   (assumption)

profit returned by Fund B =  6% of x                 (given)

= 6/100*x

= $ 6x/100

Given that both funds A and B together returned a 3% profit, So the equation we get is

120+6x/100 = 3% of (12,000+x)

(12,000+6x)/100 = 3/100* (12,000+x)

12,000+6x = 3(12,000+x)

12,000+6x = 36,000+3x

6x-3x = 36,000-12,000                       (bringing like terms on same side)

3x = 24,000

x = 24,000/3

x = $8,000

Therefore, we can conclude that the amount Trey invested in Fund B is $8,000  

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How do you write 0.00007112 in scientific notation?

Answers

Answer:

7.112 x [tex]10^{-5}[/tex]

Step-by-step explanation:

You need to re-write the number so that it is 1 or larger but less than 10.  To do that, we need to move the decimal 5 spaces to the right.  The actually number is smaller.  The [tex]10^{-5}[/tex] is telling me how much smaller the number actually is.  To get the number in standard notation I would have to take 7.112 and divide it by 100,000.

the answer to that is 7.112 × 10 -5

Using the​ graph, find the following values of the function.

Select the correct choice below​ and, if​ necessary, fill in the answer box to complete your choice.

Answers

Answer:

f(1) = 1

f(4) = -2

f(0) = 2

Step-by-step explanation:

y = f(x)

Can someone please break this down for me.

Answers

Answer:

length: 343 marea: 6418 m²

Step-by-step explanation:

Given an oval track in the shape of a 48 m by 96 m rectangle with semicircular ends, you want the length of the track and the area enclosed.

Track Length

If you remove the rectangle, you see that what remains is a circle of diameter 48. The length of that circular portion of the track is the circumference of the circle:

  C = πd

  C = π(48 m) = 48π m ≈ 151 m

Added to that length are the two 96 m sides of the rectangle. So, the total length of the track is ...

  track length = curved length + straight length

  track length = 151 m + 2×96 m = 343 m

The length of the track is 343 meters.

Enclosed area

The area enclosed by the track includes the area of the circle we saw above, and the area of the rectangle.

The radius of the circular portion is half the diameter, or 24 m. Then the area is ...

  A = πr²

  A = π(24 m)² = 576π m² ≈ 1810 m²

The area of the rectangular portion is the product of length and width:

  A = LW

  A = (96 m)(48 m) = 4608 m²

The enclosed area is the sum of these areas:

  enclosed area = area of circle + area of rectangle

  enclosed area = 1810 m² +4608 m² = 6418 m²

The area enclosed by the track is 6418 square meters.

The length (perimeter) of the track is approximately equal to 342.796 meters and the area enclosed by the track is approximately equal to 6417.557 square meters.

What is the perimeter and the area enclosed by the track?

In this problem we have a composite figure generated by a rectangle and two semicircles, of which we must determine its perimeter and area. The perimeter is the sum of the contour lengths of the semicircles and the rectangle and the enclosed area is the sum of areas of the two semicircles and a rectangle.

The perimeter of the composite figure is:

p = 2π · r + 2 · l

p = 2π · (24 m) + 2 · (96 m)

p ≈ 342.796 m

A = π · r² + l · (2 · r)

A = π · (24 m)² + (96 m) · (48 m)

A ≈ 6417.557 m²

The length (perimeter) of the track is approximately equal to 342.796 meters and the area enclosed by the track is approximately equal to 6417.557 square meters.

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Evaluate the expressions when x = 3; y = 4 & z = -2

(x + y) * z, 2y + 3z + 4y - xz =


comma = separate

Answers

Answer:

Sub in the numbers given to x, y, z and use calculator to solve

An herbalist has 50 oz of herbs costing $4 per ounce. How many ounces of herbs costing $1 per ounce should be mixed with these 50 oz of herbs to produce a mixture costing $2.50 per ounce?

Answers

The ounces of herbs costing $1 per ounce that should be mixed with these 50 oz of herbs to produce a mixture costing $2.50 per ounce?

is 50 ounces.

How to illustrate the information?

Let x = the amount of herb that costs $1 per ounce.

Based on the information,the total weight will be:

x + 50 = y.

At $2.50, the cost of the mixture will be:

1x + 4(50) = 2.50y

x + 200 = 2.50y

x + 200 = 2.50(x + 50)

x + 200 = 2.50x + 125

Collect like terms

2.5x - x = 200 - 125

1.5x = 75

Divide

x = 75/1.5

x = 5.

Therefore, the correct option is 50

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Which of these questions is most likely to result in response bias?
OA. "What do you think of this dress?"
OB. "What is your opinion of this dress?"
O C. "How do you like this beautiful dress?"
OD. "How do you feel about this dress?"

Answers

Answer: C

Step-by-step explanation:

Options A, B and D are all unbiased since there is nothing in the question taht could nudge you into a specific thought, but in option C, they specifically call it beautiful to put it in your mind and you will be more likely to call the dress beautiful compared to anything else.

Sara has a rectangular shaped backyard. The backyard is 22.5 feet wide and 35.75 feet long. What is the area of the rectangular backyard?

Answers

The area of the rectangular backyard is 804.37

How to calculate the area of the rectangle ?

The area of a rectangle can be calculated by multiplying the length and the width

Area= length × width

Length= 35.75 feet

Width= 22.5 feet

Area= 35.75 × 22.5

= 804.37

Hence the area of the rectangular backyard is 804.37

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3. If m/E+mZF = 120°, which expression is equivalent to mZG?
A (7x)°
C (7x+4)°
B (8x)°
D (8x + 4)º
(7x + 2)°
(8x-2)

Answers

In a triangle of EFG we have ∠E+∠F = 120°,E=(8x-2)° and F=(7x+2)°.

Option B is true and angle of G is 60°.

Given that,

∠E+∠F = 120°

In the figure we have a triangle with EFG.

E=(8x-2)°

F=(7x+2)°

We know

∠E+∠F = 120°

8x-2+7x+2=120

15x=120

x=120/15

x=8

We got x =8

∠E=8[tex]\times[/tex]8-2=62°

∠F=7[tex]\times[/tex]8+2=58°

Now, we know in a triangle all angles are equal to 180°.

∠E+∠F+∠G=180°

62°+58°+G=180°

120°+G=180°

G=180°-120°

G=60°

We have 4 option

a) (7x)° which is false

b) (7x+4)° which is true (7[tex]\times[/tex]8+4=60°)

c)(8x)° which is false

d) (8x+4)° which is false

Therefore, option B is true and angle of G is 60°.

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Two factory plants are making TV panels. Yesterday, Plant A produced 4 times as many panels as Plant B. Three percent of the panels from Plant A and 2% of the panels from Plant B were defective. How many panels did Plant B produce, if the two plants together produced 980 defective panels?

Answers

Answer:

7000 panels.

Step-by-step explanation:

Let x be the number of panels produced by Plant B.

Therefore:

4x = number of panels produced by Plant A.x = number of panels produced by Plant B.

Given information:

Defective panels from Plant A = 3%Defective panels from Plant B = 2%Total number of defective panels = 980

Create an equation with the given information and defined variables, remembering to write the percentages in their decimal form:

[tex]\implies 0.03(4x) + 0.02x = 980[/tex]

To find the number of panels Plant B produced, solve the found equation for x:

[tex]\implies 0.03(4x) + 0.02x = 980[/tex]

[tex]\implies 0.12x + 0.02x = 980[/tex]

[tex]\implies 0.14x = 980[/tex]

[tex]\implies \dfrac{0.14x}{0.14} = \dfrac{980}{0.14}[/tex]

[tex]\implies x=7000[/tex]

Therefore, Plant B produced 7000 panels.

A party planner purchased roses to decorate tables for an event. There were 15 tables and 5 roses were placed on each table. If the roses were $1.98 each, how much did the party planner spend on roses?

A. $148.50
B. $29.70
C. $9.90
D. $75.00

Answers

Answer: 148.50

Step-by-step explanation:

15*5=75

75*$1.98=$148.50

Answer: $148.50

Explanation: (15 x 5) = 75
75 x 1.98 = 148.50

Bob invested his savings in two investment funds. The amount he invested in Fund A was $8000 less than the amount he invested in Fund B. Fund A
returned a 2% profit and Fund B returned a 7% profit. How much did he invest in Fund B, if the total profit from the two funds together was $1730?

Answers

a = amount invested at 2%

how much is 2% of "a"? (2/100) * "a", namely 0.02a.

b = amount invested at 7%

how much is 7% of "b"? (7/100) * "b", namely 0.07b.

We know that fund A is less than fund B by 8000, that is a = b - 8000.

we also know that the yielded amount in interest is $1730, so if we simply add their interest, that'd be 0.02a + 0.07b = 1730.

[tex]\boxed{a = b - 8000} \\\\\\ 0.02a~~ + ~~0.07b~~ = ~~1730\implies 0.02(\stackrel{a}{b-8000})~~ + ~~0.07b~~ = ~~1730 \\\\\\ 0.02b-160+0.07b=1730\implies 0.02b+0.07b=1890\implies 0.09b=1890 \\\\\\ b=\cfrac{1890}{0.09}\implies \blacksquare~~ b=21000 ~~\blacksquare[/tex]

The line y = kx + 4 goes through the point (2, -2). Find the value of k.​

Answers

k = -3 is the value in straight line.

What is  straight line?

Simply put, a straight line is a line devoid of bends. A straight line is one that does not curve and reaches to infinity on both sides.

Different  type

Horizontal Line Horizontal Lines.Crossing Lines.Lines that are parallel.

On putting the values of the point in the equation of line, the value of X = 2 and Y = -8

When a line passes through a point, the point satisfies the equation of the line.

The line   y = kx + 4 goes through the point (2, -2)

So, ( 2 , -2 )  must satisfy the equation of the line.

Put  x = 2 y= - 2 in equation y = kx + 4

-2 = k * 2 + 4

- 2 = 2k + 4

-2 -4 = 2k

-6 =2k

k = -6/2

k = -3

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Melatonin is fast-acting and has a half-life of approximately 30 minutes. If you take a 10 milligram tablet, write an exponential equation to model this after t time periods.

Answers

The exponential equation to model this after t time periods is:

N(t) = 10 ( 1/2 ) [tex]^\frac{t}{30}[/tex]

Given,

Melatonin is fast-acting and has a half-life of approximately 30 minutes.

10-milligram tablet is taken.

We need to write an exponential equation to model this after t time periods.

What is half-life?

Half-life is the time required for a quantity to reduce to half of its initial value.

The formula is given as:

N(t) = [tex]N_{0} ~(\frac{1}{2})~^\frac{t}{t_{1/2}}[/tex]

Where

N(t) = quantity of the substance remaining

[tex]N_{0}[/tex] =  initial quantity of the substance

[tex]t_{1/2}[/tex] = half-life of the substance

We have,

Half-life = 30 minutes

[tex]N_{0}[/tex] = 10 mg

The exponential equation to model this after t time periods is:

N(t) = 10 ( 1/2 ) [tex]^\frac{t}{30}[/tex]

Thus the exponential equation to model this after t time periods is:

N(t) = 10 ( 1/2 ) [tex]^\frac{t}{30}[/tex]

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enter the sum of numbers as a product of their GCF
15 + 90

Answers

Answer:

15+90=3×18

Step-by-step explanation:

GCF= 5

how to factorise 3x + 6

Answers

Answer:

it is 3(x+2)

Answer:

3(x+2)

Step-by-step explanation:

You first find the common factor.

3x+6

3(x+2) solution.

Find the distance between the points. Give an exact answer and an approximation
to three decimal places.
(-1,-9) and (6, - 16)

Answers

The distance between the two points are-9.87 units.

What is referred as the distance formula?In coordinate geometry, we have a list of distance formulas that can be used to obtain the distance between two points, the distance between a point and a line, the distances between two vertical lines, this same distance between these two parallel planes, and so on.The Euclidean distance formula is another name for the distance formula used to calculate the distance between 2 points in a two-dimensional plane. Acknowledge two points in the 2D plane, A(x₁, y₁) and B, to derive the formula (x₂, y₂). Assume 'd' represents the distance from A to B.

The distance formula is;

d² = (y₂ - y₁)² + (x₂ - x₁)²

Let the two given points be;

A(x₁, y₁) = (-1,-9)

B(x₂, y₂) = (6, - 16)

Put the values in the formula;

d² = (-16 + 9)² + (6 + 1)²

d² = (-7)² + (7)²

d² =2 (7)²

d = 7√2

d = 7×1.41

d = 9.87

Therefore, the distance between the two points is found as 9.87 units.

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The average donut weighs approximately 50 g, and has approximately
11,000 mg of sugar. How much sugar is in three donuts? Answer in g.

Answers

Answer:

33 g

Step-by-step explanation:

the weight of the donut is a distractor number. if each donut has 11,000 mg of sugar, then 11,000 x 3 = 33,000 mg. In order to convert mg into g, we move the decimal over to the left 3 times.

33000. (0 times)

3300.0 (1 time)

330.00 (2 times)

33.000 (3 times)

HELP!!! Describe the distribution of points per game

Answers

Definition: n math, a graph can be defined as a pictorial representation or a diagram that represents data or values in an organized manner.

Given,

Points scored per game by 35 NBA players during the 2017 basketball season.

Context: Points scored per game by 35 NBA players

Shape: dotted, no gaps

Outliers: none

Center: 14(Median)

Spread: Data varies from somewhere between (12-14) to somewhere between (24-26)

context is about the graph

shape is about the representation

outliers is whether any point is farther

center is the median

spread is till where the graph is extended with gaps in between

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Which numbers are irrational?
A. √30
B. √16
C. √42
D. √169
Select all that apply.

Answers

B and C are irrational numbers!

8^6x8^9= ?
64^15
64^3
8^15
8^54

Answers

Answer:

[tex]8^{15[/tex]

Step-by-step explanation:

Hello!

Use exponent rule: [tex]a^b * a^c = a^{b + c}[/tex]

Use the rule to simplify the exponential expression.

Simplify[tex]8^6 * 8^9[/tex][tex]8^{6 + 9}[/tex][tex]8^{15[/tex]

The simplified form is [tex]8^{15[/tex].


The position of a body moving along the x-axis is given by s = t³ - 12t2+36t, with s in meters and t in seconds.
Find the total distance traveled by the body from t = 0 tot = 4.
Total distance =

Answers

The total distance travelled by the body is 48 meters

According to the question we have been given an equation of the position of  a body moving along x-axis as

                    s = t³ - 12t² + 36t

where,    s = distance in meters

             t = time in seconds

We need to find the total distance traveled by the body from t=0s to t=4s

The formula for the total distance is given as :

            S = |s(1) - s(0)| + |s(2) - s(1)| + |s(3) - s(2)| + |s(4) - s(3)|

Now we will find out the distance travelled in time 0s to 4s

when t = 0s ,  s = (0)³ - 12(0)² + 36*0

                         = 0m

         t = 1s ,  s = (1)³ - 12(1)² + 36*1

                         =  25m

         t = 2s ,  s = (2)³ - 12(2)² + 36*2

                         =  32m

         t = 3s , s = (3)³ - 12(3)² + 36*3

                         = 27m

         t = 4s , s = (4)³ - 12(4)² + 36*4

                         = 16m

Putting the required values in the above formula we get ,

  S = |25-0|+|32-25|+|27-32|+|16-27|

  S = 25 + 7 + 5 + 11 meters

   S = 48 meters

Hence the total distance travelled by the body is 48 meters

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What is the length of the line segment that joins
points (4, -1) and (7,5)?
A. 5 B. √13
C. √29 D. √45

Answers

Answer:

5 is the answer to that question

Answer:

D. √45

Step-by-step explanation:

(4, -1) (7, 5)

(x₁, y₁)  (x₂, y₂)

d = √(x₂ - x₁)² + (y₂ - y₁)²

d = √(7 - 4)² + (5 - (-1))²

d = √(3)² + (6)²

d = √9 + 36

d = √45

I hope this helps!

You have four cards: Jack, Queen, King, and Ace. What is the probability of drawing a face card, not replacing it, and then choosing another face card?

Write in fraction form!

Answers

Step-by-step explanation:

if I understand you correctly, then we have the 4 described cards. 3 of these 4 cards are face cards (Jack, Queen, King).

a probability is always desired cases over totally possible cases.

so, for the first pull we have a probability of

3/4 = 0.75

we have 4 total possibilities, and 3 of them are the desired outcome.

for the second pull we have then only 3 cards left (we did not replace the first pulled card). and because the first pulled card was in this scenario a face card, 2 out of these 3 cards are face cards.

so, the probability to pull a face card here is

2/3 = 0.66666...

when we combine these 2 events into one connected event (we are creating event 1 AND event 2), we multiply the probabilities, giving us

3/4 × 2/3 = 6/12 = 1/2 = 0.5

Other Questions
PLEASE HELP!!!!!! ASAP HELP ME OUT PLEASE!!!!!!! All organic compounds contain the element _____A. Nitrogen B. Oxygen C. CarbonD. Phosphorus candidate wants to use a combination of radio and television advertisements in her campaign. Research has shown that each 1-minute spot on television reaches 0.09 million people and that each 1-minute spot on radio reaches 0.006 million. The candidate believes she must reach at least 2.16 million people, and she must buy a total of at least 80 minutes of advertisements. How many minutes of each medium should be used to minimize costs if television costs $900/minute and radio costs $200/minute? The rate of bacteria growth in a laboratory experiment was measured at 15% per hour. If this experiment is repeated and begins with 6 grams of bacteria, how much bacteria should be expected after 12 hours? Round to the nearest tenth of a gram. Which of the following is NOT an example of diffraction?Dark and light interference patterns on a screen after light waves have gone through a slit.Hearing the seeker shout 'ready', when you are behind a tree.Light spreading out as it goes through a tiny gap in a doorOcean waves spreading out as they go through a gap in a sea-wall 12 1 Affendy, Ben, Cheong and Derrick sold some tickets for a charity carnival. Affendy sold of the total number of tickets. Ben, Cheong and Derrick sold the remaining tickets in the ratio of 4: 3:9. Derrick sold 1315 more tickets than Ben. (a) (b) (c) How many tickets did Ben sell? What was the total number of tickets sold by Ben, Cheong and Derrick? How many tickets did the four boys sell altogether? 3. In your own life, according to the theme, if youa. work harder, you can own your own boat.b. look around, you'll find simple things that make you happy.c. like the sea, you will be very happy on shore.d. don't have a hobby, you should get one. In sea fever Subtract the quotient of 21 and 7 from 10 A news outlet choosing to spend time covering a specific subject is an example of:_______ In an hymn to the evening, wheatley uses descriptive details and sensory language to show readers what this particular evening was like. True or false?. Ciara budgeted $30 per month for entertainment. Movies cost $7 and sports games cost $5.Let x represent the number of movies she attended in a given month and let y represent the number of sports games she attended in the same month.What inequality models this problem? Solve for x:2(x-6)=14(3-9) What is the equation of the line that passes through the point (-2,-1)(2,1) and has a slope of 5/2 A lawyer can argue a case in court for one hour and make $300. She could alternatively use that hour of time to type a legal brief in her office. What is the opportunity cost of her typing the legal brief?. English look at photo Critical Thinking and the Nursing Process 1. Based on Maslow's hierarchy of needs , which of the following nursing diagnoses has the highest priority ? A. Knowledge deficit B. Constipation C. Disabled family coping D. Anxiety E. Ineffective airway clearance Three divers kept track of the number of crabs they've seen this year.Diver Crabs observed DivesScuba Sam 33 11Wet Suit Willy 81 18Deep Diving Dan 104 26Which diver saw the most crabs per dive?Choose 1 answer: -6+2y=10 and 6x-2y=-10 functions of the executive arm