6. The city needs to buy grass to cover
the driving range. The measurement of the
driving range is 100 by 372 yards. If one bag
of grass seed covers 75 square yards, how.
many bags will the city need to buy to seed.
the driving range?
(A) 160
(B) 357
(C) 496
(D) 653

Answers

Answer 1

Answer:

(C) 496

Step-by-step explanation:

area = 100 yd × 372 yd = 37,200 yd²

37,200 yd² / 75 yd² = 496

Answer: (C) 496


Related Questions

What is the domain of function m based on the graph?

Answers

Answer:

let why is equal to FX b and function with an independent variable X and dependent variable y if a function of f provide a way to successfully produced the single value using for the prepos a value of x then the chosen X value is called belong to domain f

Evaluate the expression for x = 6.
12 + 2x - 5
A. 19
B. 79
C. 14
D. 54

Answers

Answer:

A. 19

Step-by-step explanation:

Slove this expression using the order of operation PEMDAS.

12 + 2x -5

Replace x with 6

12 + 2(6) - 5

12 + 12 - 5

24 -5

19

Therefore the answer is the first option A.19 .

please help!!!!!!!!!!!!

Answers

Answer: $233

Step-by-step explanation:

- A flat fee is an amount that is charged or paid that doesn’t account for hourly use or work

- Then, you must pay by the hour for use

- So you would use the equation:

(22 • 9) + 35

- 22 is the maximum hours and 9 is the hourly rate

- 35 is your flat fee

- So, (22 • 9) + 35 = $233

hope this helps :)

Answer:

$233

Step-by-step explanation:

We can make up a linear equation. We already know that it costs $35 to rent a small auger.

Every hour there is a extra fee of 9$.

So, 9 can be the slope, while 35 can be the x intercept.

y=9x+35

x=22; maximum hours

y=9(22)+35

y=198+35

y=$233

Here is a more simple way

multiply 22 hours with 9 dollars, =$198

then add the 35 dollars; 198+35=$233

As strange as it may seem, it is possible to give a precise-looking verbal definition of an integer that, in fact, is not a definition at all. The following was devised by an English librarian, G. G. Berry, and reported by Bertrand Russell. Explain how it leads to a contradiction. Let [tex]n[/tex] be “the smallest integer not describable in fewer than [tex]12[/tex] English words.” (Note that the total number of strings consisting of [tex]11[/tex] or fewer English words is finite.)

Worth 10 points.
YOUR ANSWER MUST BE UNIQUE

Answers

The statements hold the contradiction, just by confusion in keep meaning of statements and get confused with "12" which is string in quotes

Let  be “the smallest integer not describable in fewer than  English words.” (Note that the total number of strings consisting of  or fewer English words is finite.)

What do you mean by contradiction?
Contradiction means that couple of statements that opposes each other.

Here,
The statement says let n be  “the smallest integer not describable in fewer than  English words.” which implies that n is connected with string mentioned in "" quotes, which is not a definition but contain 11 words in the quotes.
and another statement -  Note that the total number of strings consisting 11  or fewer English words is finite which implies that:
the limit of words inside the quotes 11 words

Thus, strings implies in quotes is simple meaning with 11 word in it
While in statement in brackets implies the limit of words as a string should be ≤ 11. the string "12" create the contradiction in minds.

Learn more about contradiction here:
https://brainly.com/question/13711793

#SPJ1

Anthony is planning a trip using a map with the scale of 1 cm to 15 miles it’s a destinations 15 cm away on the map how far away in Miles as the destination

Answers

The distance of Miles' destination is 225 miles.

What is the distance of the destination?

A scale drawing is a reduced form in terms of dimensions of an original image / building / object. The map is a scale drawing of a larger town. The scale drawing is reduced by constant dimensions.

Actual distance = (15 x 15) / 1 = 225 miles

To learn more about scale drawings, please check: https://brainly.com/question/26388230

#SPJ1

3 quick algebra 1 questions for 50 points!

Only answer if you know the answer, shout-out to subtomex0, tysm for the help!

Answers

The range of the function across the domain is {18, 2, -6}

The range of the function

The function is given as:

f(x) = -2x + 12

The domain is given as:

{-3, 5, 9}

So, we have:

f(-3) = -2*-3 + 12 = 18

f(5) = -2*5 + 12 = 2

f(9) = -2*9 + 12 = -6

Hence, the range of the function across the domain is {18, 2, -6}

The value of the function

The function is

f(x) = 3x - 11

To calculate f(4), we have:

f(4) = 3 * 4 - 11

Evaluate

f(4) = 1

Hence, the value of f(4) is 1

The value of the function

The function of the graph is given as:

w(x)

To calculate w(2), we check the corresponding point on the graph where x = 2

From the graph, we have:

w(2) = 5

Hence, the value of w(2) is 5

Read more about domain and range at:

https://brainly.com/question/1632425

#SPJ1

Answer:

1.  f(4) = 1

2.  range: {18, 2, -6}

3.  w(2) = 5

Step-by-step explanation:

Question 1

[tex]\textsf{Given}: \quad f(x)=3x-11[/tex]

To find f(4) substitute x = 4 into the given function:

[tex]\begin{aligned}\implies f(4) & = 3(4)-11\\& = 12-11\\& = 1\end{aligned}[/tex]

Question 2

Domain: set of all possible input values (x-values)

Range: set of all possible output values (y-values)

[tex]\textsf{Given}: \quad b(x)=-2x+12[/tex]

To find the range of the given function for the domain {-3, 5, 9} simply input these values of x into the function:

[tex]\implies b(-3)=-2(-3)+12=18[/tex]

[tex]\implies b(5)=-2(5)+12=2[/tex]

[tex]\implies b(9)=-2(9)+12=-6[/tex]

Therefore, the range of the given function is {18, 2, -6}.

Question 3

Given:  The graph of function w(x)

To find w(2) simply find the y-value of the point on the graph where x = 2:

Find x = 2 on the x-axis.  Trace vertically until you meet the line.  Trace horizontally to the y-axis to find the corresponding value of y.

Therefore, w(2) = 5

Look At The Graph. How many nails are less than 1 1/2 inches long?

A)7
B)17
C)6
D)15

Answers

Answer:

D 15

Step-by-step explanation:

Count all of the x's less than 1 1/2  =  15

Write as an equation: The product of a number and 12 is 78.
A. 12n=78
12
n
=
78
B. n+12=78
n
+
12
=
78
C. 12−n=78
12

n
=
78
D. 12=78n

Answers

Answer: A) 12n = 78

Detailed Solution:

Let ‘n’ be the Unknown Number.

Product of ‘n’ and 12 = 12 * n = 12n

Therefore,
12 * n = 78
=> 12n = 78
The answer is 12n = 78. Why? Well, the product of a number and 12 can be written as 12n because it is a coefficient which includes a variable for an unknown value. Since there is an unknown value (that’s called “a number” in this expression), 12n is the standard form of this representation. Since the product of a number and 12 is 78, we can use an equal sign followed by a 78 to show that 12n is equal to 78. If you need to better understand this, let me know and I will gladly assist you.

Can someone give me the answer to this?

Answers

[tex]\frac{FI}{IG}=\frac{14}{28}=\frac{1}{2}\\\\\frac{FE}{EH}=\frac{12}{26}=\frac{6}{13}[/tex]

So, IE is not parallel to GH.

This table shows the scores that Mario had on his last five math tests.

Which statement does NOT describe this set of data?

A. The mode is 85.
B. The mean is greater than the median.
C. The median is 81.
D. The mode and the median are equal.

Answers

D. The mode and the median are equal.

I think that should be your answer

Answer:

Step-by-step explanation:

its A i just did it lol

If two triangles are congruent which of the following statements must be true

Answers

The statement which must be true are Options B, C and D

which are the triangles have the same size and shape, the corresponding sides of the triangles are congruent and the corresponding angles of the triangles are congruent.

What are congruent triangles?

Congruent triangles are triangles that have corresponding sides, angles which are all equal in measure.

They can be rotated and turned to be look be identical.

Thus, the statement which must be true are Options B, C and D

which are the triangles have the same size and shape, the corresponding sides of the triangles are congruent and the corresponding angles of the triangles are congruent.

The complete question is

If two triangles are congruent which of the following statements must be true? CHECK ALL THAT APPLY

A. The triangles have the same size but not the same shape.

B. The triangles have the same size and shape

C. The corresponding sides of the triangles are congruent.

D. The corresponding angles of the triangles are congruent.

Learn more about congruent triangles here:

https://brainly.com/question/1675117

#SPJ1

Use the inverse variation equation to fill in the table.

p =
8.31
V

Volume
(Liters) Pressure
(kilopascals)
83.1 a
b 0.4
415.5 c


a =
4.17
⇒ 0.1, b =
⇒ 20.775, c =
8.31
⇒ 0.02

Answers

The value of a is  0.10.

The value of b is 20.78.

The value of c is 0.02.

What are the missing values?

When two variables have inverse variation, the two variables move in opposite directions. If one variable increases, the other decreases.

p = 8.31 / V

V = 8.31 / p

a = 8.31 / 83.1 = 0.10

b = 8.31 / 0.4 = 20.78

c = 8.31 / 415.5 = 0.02

To learn more about inverse relationships, please check: https://brainly.com/question/25748643

#SPJ1

Answer:

a= 0.1

b=20.775

c=0.10

Step-by-step explanation:

edge 2023

The perimeter of the rectangle below is 130 units. Find the length of side VY.
Write your answer without variables.
Y
4y
V
5y + 2
X
W
VY

Answers

Answer:

VY = 28 units

Step-by-step explanation:

the perimeter (P) of a rectangle is calculated as

P = 2 ( length + breadth )

given P = 130 , then

2(5y + 2 + 4y) = 130 ( divide both sides by 2 )

9y + 2 = 65 ( subtract 2 from both sides )

9y = 63 ( divide both sides by 9 )

y = 7

Then

VY = 4y = 4 × 7 = 28

In GeoGebra, display the slope of AB and the slope of the perpendicular line passing through C. Use this to verify your responses in parts B and C. Then move points A, B, and C on the grid to several different locations, and record the slopes of the two lines and the coordinates of A, B, and C.

Answers

The slope of the perpendicular line passes through C in GeoGebra.

What is GeoGebra?

GeoGebra is the software for the mathematical question for all levels of academics.

GeoGebra brings many mathematical problem solutions like geometry, algebra, spreadsheets, graphing, statistics, and calculus in one search engine.

Display the slope of and the slope of the perpendicular line passing through C.

Hence, the slope of the perpendicular line passes through C in GeoGebra.

For more details about GeoGebra:

brainly.com/question/10400398

#SPJ1

The height of an
equilateral triangle is
11√12. What is a side
of the triangle?

Answers

Answer:

I don't know the answer

Step-by-step explanation:

it's hard solve it for me

calls arrive at lynn ann fish's hotel switchboard at a rate of 2.0 per minute. the average time to handle each is 10 seconds. there is only one switchboard operator at the current time. the poisson and negative exponential distributions appear to be relevant in this situation. what is the probability, as a percent, that the operator is busy

Answers

The probability that the operator is busy is 33.33% if the call rate is 2 per minute and average time to handle is 10 seconds.

Given rate of calls 2 per minute and average time to handle a call is 10 seconds.

We have to find the probability that the operator is busy.

Probability is the chance of happening an event among all the events possible. The value of probability lies between 0 and 1.

Probability= number of items/ total items

If rate is 2 per minute then the customers handled in 1 hour=2*60=120

The average time to handle a call=10 seconds.

Therefore customers to be handled in 1 hour=360 (10*6*60)

Probability that the operator is busy is as under:

Probability=λ/μ

=120/360

=1/3

=1/3*100

=33.33%

Hence the probability that the operator is busy is 33.33%.

Learn more about probability at https://brainly.com/question/24756209

#SPJ4

Find the tangent of angle Θ in the triangle below.

Answers

Answer: 4/3

Step-by-step explanation:

[tex]\tan \theta=\frac{20}{15}=\boxed{\frac{4}{3}}[/tex]

Suppose the round-trip airfare between Philadelphia and Los Angeles a month before the departure date follows the normal probability distribution with a mean of $387.20 and a standard deviation of $68.50. The interval around the mean that contains 95% of the airfares is ________.

Answers

The interval around the mean that contains 95% of the airfare is (250.2,524.2).

Normal Distribution is bell shaped and symmetrical in nature.

We use standard normal to find probabilities of normal distribution

Normal distributions have key characteristics that are easy to spot in graphs: The mean, median and mode are exactly the same. The distribution is symmetric about the mean—half the values fall below the mean and half above the mean. Diagram below shows standard normal figure.

In a normal distribution, 95% of the values fall between mean±2*sd

Give:  mean=387.20

          sd=68.50

So the interval around the mean that contains 95% of the airfare is (250.2,524.2).

To know more about Normal distribution visit:

https://brainly.com/question/4079902

#SPJ4

Solve for x in the equation x squared 20 x 100 = 36. x = –16 or x = –4 x = –10 x = –8 x = 4 or x = 16

Answers

Possible values of x is -4 or -16

How to solve?

[tex]{x}^2[/tex] + 20x +100 = 36

[tex]\\{x}^2[/tex] + 20x + 100-36 = 0

[tex]\\{x}^2[/tex] + 20x + 64 = 0

Using middle term split

In this method splitting of middle term in to two factors, In Quadratic Factorization using Splitting of Middle Term which is x term is the sum of two factors and product equal to last term.

[tex]{x}^2[/tex] + 4x + 16x + 64 = 0

x(x+4) + 16(x+4) = 0

taking common (x+4)

(x+4)(x+16) = 0

Either

x+4 = 0

⇒ x = -4

or (x+16) = 0

⇒ x = -16

Thus possible values of x is -4 or -16

To learn more about solving Quadratic Equations visit:

https://brainly.com/question/1279217

#SPJ4

Answer: A

Step-by-step explanation:

Help Pls! I need this fast!

Answers

Answer: 36

Step-by-step explanation:

[tex]\overline{AB} \cong \overline{BC}[/tex] (Triangle ABC is isosceles)

[tex]m\angle CAB=m\angle CBA=30^{\circ}[/tex] (base angles of an isosceles triangle are congruent)

[tex]\angle MCB=90^{\circ}[/tex] (In triangle CMB, angles in a triangle add to 180 degrees)

[tex]\angle ACM=30^{\circ}[/tex] (triangle sum theorem)

[tex]MB=24[/tex] (30-60-90 triangle CMB)

[tex]AB=12[/tex] (sides opposite congruent angles in a triangle are congruent)

[tex]AB=36[/tex] (segment addition postulate)

In the following exercises, multiply the binomials. Use any method.
254. (10a − b)(3a − 4)

Answers

Answer:

Hence the expression  [tex]$$(10a-b)(3a-4)=30a^2-3ab-40a+4b$$[/tex]

Step-by-step explanation:

Explanation

The given expression is (10a-b)(3 a-4).We have to multiply the given expression.Multiply the (10a-b) by -4, multiply the (10 a-b) by 3a then add like terms.

[tex]$$\begin{matrix}{} & {} & {} & {} & 10a & - & b \\ \times & {} & {} & {} & 3a & - & 4 \\ \end{matrix}$$[/tex]

___________________

[tex]$$\begin{matrix}{} & {} & {} & - & 40a & + & 4b \\ 30{{a}^2} & - & 3ab & {} & {} & {} & {} \\ \end{matrix}$$[/tex]

___________________

[tex]$$\begin{matrix}30{{a}^2} & - & 3ab & - & 40a & + & 4b \\ \end{matrix}$$[/tex]

A number of friends decided to go on a picnic and planned to spend rs. 96 on eatables. four of them, however, did not turn up. as a consequence, the remaining ones had to contribute rs. 4 each extra. the number of those who attended the picnic was

Answers

The number of those who attended the picnic was 8.

Quadratic equations are the polynomial equations of degree 2 in one variable of type f(x) = [tex]ax^{2} + bx + c[/tex] = 0 where a, b, c, ∈ R and a ≠ 0.

Such questions are best examples of quadratic equations where  the unknown is simply assumed to be a variable which when substituted according to the conditions yield a quadratic equation which can easily be solved.

Let x represent the whole population.

Total Spending = Rs. 96

Thus, each individual's contribution is equal to 96/x.

Four people did not show up causing

others to contribute Rs. 4 extra.

So the given condition can be written as

96/(x-4) – 96/x = 4

=>96x – 96(x-4) = 4x(x-4)

=> 96x -96x + 384 = 4x2 – 16x

=> 4x2 – 16x – 384 = 0

=> x2 – 4x – 96 = 0

=> (x – 12)(x + 8) = 0

=> x = 12 or x = -8 (neglect)

So x = 12

x-4 = 8  ( because  four of them did not turn up)

∴ The number of those who attended the picnic was 8.

Learn more about quadratic equations here :

https://brainly.com/question/15241362

#SPJ4

(bus, cab, or train) to school, and in the evening he has the same 333 choices for his trip home.

Answers

The probability that he will use both bus and the train among bus, cab, train is 0.11.

Given There are 3 choices to people each among bus, cab, train for his trip home.

Probability is the likeliness of happening an event among all the events possible. The value of probability lies between 0 and 1. The formula to calculate probability is as under:

Probability= number of things/ total things.

The value of probability cannot be negative.

Number of buses=3

Number of cab=3

Number of train=3

Probability that he will go through train and bus is 3/9*3/9

=9/81

=1/9

=0.11

Hence the probability that he will travel with bus and train is 0.11.

Learn more about probability at https://brainly.com/question/24756209

#SPJ4

Question is incomplete as it includes:

What is the probability that he will use both train and bus?

From the diagram below, if the sides AD = 3 and DC = 27, and BD = X + 3, find x.





Select one:

a.
36


b.
9


c.
16


d.
6

Answers

Answer: d. 6.

Step-by-step explanation:

AD=3      DC=27       BD=x+3      x>0     x=?

1. Consider triangle ABD:

It's rectangular (∡ADB=90°).       ⇒

AB²=(x+3)²+3²=(x+3)²+9.

2. Consider triangle BDC:

It's rectangular (∡BDC=90°).       ⇒

BC²=(x+3)²+27²=(x+3)²+729.

3. Consider triangle ABC:

It's rectangular (∡ABC=90°).      

AC=AD+CD=3+27=30.      ⇒

AC²=AB²+BC²

(x+3)²+9+(x+3)²+729=30²

2*(x+3)²+738=900

2*(x²+6x+9)+738=900

2x²+12x+18+738=900

2x²+12x-144=0 |:2

x²+6x-72=0

D=324   √D=18

x₁=-12 ∉ 'cause x>0

x₂=6.

17-19, deal with the ambiguous SSA. For each, find all possible solutions and sketch the triangle(s) in each case

Answers

The possible solutions using the Sine Law are given as follows:

Triangle A:
B = 50.26°

C = 79.74°

Triangle B:

B = 62.79°

C = 70.21°

What is the sine Rule?

The sine law asserts that the ratio of a triangle's side length to the sine of the opposing angle is the same for all three sides. The sine rule is another name for it.

What is the explanation for the above solution?

Triangle A

Given the sine law:
a/SinA = b/SinB

Hence

Sin B = (b/a) SinA

Sin B = 15/10 (Sin 50)

Sn B = (15/10) * 0.766

Sin B = 1.5 * 0.766

B = Sin⁻1 (1.14)

B = 50.26°

Hence, C =

180 - B - A

= 180 - 50.26 - 50

C = 79.74°

Solution B

Given the sine law:

a/SinA = b/SinB

Hence

Sin B = (b/a) SinA

Sin B = 2/1.6 (Sin 47)

Sn B = 1.25 * 0.73

Sin B = 0.9125

B = Sin⁻1 (0.9125)

B = 62.79°

Hence,

C = 180 - 62.79 - 47

C = 70.21°

Learn more about the Sine Law at;
https://brainly.com/question/12271113
#SPJ1

Please help me!!
Find the value of x:

Answers

Answer:

x = 34 degrees

Step-by-step explanation:

Corresponding Angles Theorem: If 2 parallel lines are cut by a transversal, their corresponding angles are congruent.

Angle RNM = 78 degrees

Triangle RMN = 180 degrees

180 = 78 + 2x + x

102 = 3x

x = 34

A math teacher randomly assigns seats in the classroom to students each quarter. Each student randomly chooses their row number out of a hat. In the classroom, there are 4 desks in each row and 27 students in your class. What is the probability that you and your 3 friends will get to sit together in the same row?

Answers

Using the combination formula, it is found that the probability that you and your 3 friends will get to sit together in the same row is given by:

[tex]p = \frac{1}{17550}[/tex].

We do not consider the order, hence the combination formula is used to solve this question.

What is the combination formula?

[tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by:

[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]

4 students will be taken from a set of 27, hence the number of ways they can sit is given by:

[tex]C_{27,4} = \frac{27!}{4!23!} = 17550[/tex]

Only one outcome is desired, hence the probability is given by:

[tex]p = \frac{1}{17550}[/tex].

More can be learned about the combination formula at https://brainly.com/question/25821700

#SPJ1

Find the measure of the angle indicated in bold

Answers

Answer:

60 for both

Step-by-step explanation:

Since these angles are parallel, they are equal to each other :

6x = 5x + 10

Subtracting 5x from both sides gives us :

x = 10

Substituting this value back into both angles gives us

6x = 60

5x+10 = 60

32. Find the ratio of the side lengths of the small triangle to the large
triangle.

3/10

6/20

3/2

2/3

Answers

Answer:

2/3

Step-by-step explanation:

that the ratio of that number

On his first day of school, Kareem found the high temperature in degrees Fahrenheit to be 76.1°. He plans to use the function C of F = five-ninths (F minus 32) to convert this temperature from degrees Fahrenheit to degrees Celsius. What does C(76.1) represent?

the temperature of 76.1 degrees Fahrenheit converted to degrees Celsius
the temperature of 76.1 degrees Celsius converted to degrees Fahrenheit
the amount of time it takes a temperature of 76.1 degrees Fahrenheit to be converted to 32 degrees Celsius
the amount of time it takes a temperature of 76.1 degrees Celsius to be converted to 32 degrees Fahrenheit

Answers

The function is C(F) = (F-32) * 5/9
This means the function C, is using variable F to get the output.
C is Celsius, F is Fahrenheit, so the answer is "the temperature of 76.1 degrees Fahrenheit converted to degrees Celsius"

Answer:

a

Step-by-step explanation:

Other Questions
What happens to facilitated diffusion when the protein carriers become saturated?. helpp quick can't get correct Somebody help me with this question asap please thank you Help please. Math and giving 30 points. It's OK to use fallacies in your argument if it helps the opposition see things your way. True False 37. what helped christian ideas spread around the mediterranean region by 325 c.e.? What does America need to do for getting involving in global affairs We (not/clean) the house when she (come) yesterday Choose the word which best completes the sentence.He told me keep my foot towards the rear, or_____, of my board.a.nosec.trucksb.taild.snapPlease select the best answer from the choices providedABCD What is the solution of log2x + 6^8 = 3? Group of answer choicesx = 2x = 2x = 3x = 3 i need help with this could you please help me please help!!! Evaluate the following expression.10 x (-9 x (-6)) The product of two rational numbers is 3/8. If one of the number is 2/5 , find the other number. What is the name of the process of selecting a specific group of organisms from an initially heterogeneous population for future breeding purposes Write the correct form of the ir verb1. Nosotros vamos al museo para ver una exposicin de arte.2. Yo voy a la cocina para un vaso de leche. 3. Francisco va al caf con sus amigos. 4. Mi amigo y yo van a la escuela en coche. 5. Vas t a Espaa el verano que viene? who is julia (the new tribe) short story Solve for x.2x = x+6If there is more than one solution, separate them with commas. If there is no solution, click on No Solution. Mr brown shares with the class that 70 percent of the students got an a on the English quiz if Mr brown has 100 student what percent of the students did not get an a A financial services firm conducted an attitude survey and asked its employees to respond candidly to the survey questions. It was found that although employees were generally satisfied with their pay, they were dissatisfied with the organization's management style, promotion practices, and training programs. To manage these concerns, it is best recommended that HR _____. which of the following traits is most likely to be a useful adaptation? OA. White fur in a field mouse that hides among dried leaves and grasses OB. Structures within a cactus needle that decrease the amount of water that the leaf will lose to the environment OC. Red coloring in an oak leaf, decreasing the amount of sunlight that the leaf will absorb OD. Cells in a finch's eye that allow the finch to see tiny color variations in seeds and nuts ich of the following traits is most likely to be a useful adaptation ? OA . White fur in a field mouse that hides among dried leaves and grasses OB . Structures within a cactus needle that decrease the amount of water that the leaf will lose to the environment OC . Red coloring in an oak leaf , decreasing the amount of sunlight that the leaf will absorb OD . Cells in a finch's eye that allow the finch to see tiny color variations in seeds and nuts