A researcher performed an analysis of the elemental composition of several fish species living in the
same body of water. The amount (in parts per million) of iron (Fe), calcium (Ca), potassium (K), sodiumBased on this data, identify which elements are found in similar concentrations across all species of fis
tested. Explain how this data provides support for the hypothesis that all four species of fish descended
from a common ancestor.

Answers

Answer 1

Answer:

Step-by-step explanation:

the step by step explanation is that Fe has 55.70 it either goes up or down because of scientifc explanation same with the Ca, K, Na, Mg

Related Questions

For brainliest :)
Oml i need more characters
There :)

Answers

Answer:

Imfaooooooo

Step-by-step explanation:

Hope this helps or brightens your day! Please consider marking brainliest! Always remember, your smart and you got this! -Alycia :)

Answer:

characters for what?

anyways....I need brainiest! :P

Please hurry no clown answers and please do the whole thing
You are a member of your local movie theater’s club. Every time you see a movie at the theater, you earn 2 advantage points. When you earn 100 points, you get a free movie pass. Currently, you have 40 advantage points.

Write an equation to model the number of movies m you have to watch before you earn a free movie pass.
Solve the equation. Show your work.

Answers

100=40+2m

100-40=60

2m=60

60 divided by 2=30

30 movies

Answer:

2m+40=100, 30 movies

Step-by-step explanation:

1 movie = 2 points

1 pass= 100 points

curently have 40 points so

100points = 40points +2points *m

solve for m:

2m+40 =100 subtract 40 from both sides

2m = 100-40

2m=60 divide both sides by 2

m=60/2

m=30

Hep help please please

Answers

Answer:

The answer is 0, 5.25

Step-by-step explanation:

$6,000 dollars is invested in two different accounts earning 3% and 5% interest. At the end of one year, the two accounts earned $220 in interest. Set up a systems of linear equations to model the amount of money invested and the interest earned.

Answers

Answer:

x + y = 6000

0.03x + 0.05y = 220

Step-by-step explanation:

Given that :

Total principal amount = $6000

Account A:

Let principal = x

Rate = 3% = 0.03

Account B:

Let principal = y

Rate = 5% = 0.05

Interest earned at after one year = $220

Amount invested :

x + y = 6000

Simple interest = principal x rate x time

Interest earned

(x * 0.03 * 1 ) + (y * 0.05 * 1) = $220

0.03x + 0.05y = 220

f(x) = -4x^2 + 5x
Find f(6)

Answers

Answer:

-114

Step-by-step explanation:

f(6) it means f(x=6) so substituting x=6 in your equation gives us

f(6)= -4*(6)²+5*(6)

= -4*36+30

= -144+30

= -114

The least common denominator of[tex]\frac{1}{6} and \frac{5}{12}[/tex] is 12.

TrueFalse

Answers

True 1/6 can become 2/12 by multiplying it by two so the common denominator would be 12. 2/12 and 5/12 have a common denominator of 12

Please help! I’ll give brainliest to whoever gets it right!

Answers

Answer:

3.62

Step-by-step explanation:

I am big brain and very smort

Answer:

362/ 100 or 3 62/100

Step-by-step explanation:

I got 24 miles for each kind of gas in my car which one of the following is a equivalent radio of miles to gallons.
A. 48 to 2
B. 2 to 48
C. 1 to 24
D. 3 to 240

Answers

I believe that the answer is B

6. A ticket to a concert costs $28,55. There is a 5% transaction fee for purchasing the ticket. What is
the transaction fee? What is the total cost of the ticket?

Answers

Answer: 29.98 dollars

The fraction 2 5/8 is equivalent to which of the following decimal numbers? pls help ill mark you the brainlyest

A 2.58

B 2.625

C 2.63

D 2. 6

Answers

Answer: 2.625
The fraction of 2 5/8 is equivalent to the decimal form of 2.625.

Why:
5/8 equals 0.625 so by adding this to 2, you get the final sum of 2.625! :)

When 20 is subtracted from five times a number, the result is the same as when 18 is added to three times the number. What is the number?

Answers

Answer:

Number is 19

Step-by-step explanation:

denote the number by x.

the line says:

5x - 20 = 18 + 3 x

Subtracting 3x form both sides

2x - 20 = 18

adding 20 to both sides

2x = 38

dividing both sides by 2

x = 19

Answer:

Step-by-step explanation:

let n = the number

5n - 20 = 18 + 3n

combine like terms in one of four different ways

2n = 38

n = 19

20+20 helpppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp

Answers

Answer:

Step-by-step explanation:

20+20=40 C:

Which values could be the values of x and y?

Answers

Answer:

1 3/4, 9 1/4

Step-by-step explanation:

continue the pattern

What that person said^^^^

Q2. 81 = 3k

PLEASE HELP !!

Answers

Answer:

Step-by-step explanation:

Plz solve ill give brainliest to the first correct answer

Answers

Answer:

-3

Step-by-step explanation:

......................

Jorge's family arrived home at 8:00 at night after traveling in the car for 5 hours and 15 minutes. What time did Jorge's family leave?

Answers

Answer:

2:45 P.M

Step-by-step explanation:

Answer:

3:45

Step-by-step explanation:

8:00-5 hours and 15 min=3:45

what is y=1/2x-10 Help me

Answers

Slope intercept form? Because slope intercept form is y= mx + b

Not sure what you are trying to figure out here

A vector in standard position has its terminal point at (7, –4). What is the magnitude of the vector?

Answers

Answer:

Square root of 65

Step-by-step explanation:

Edge

The magnitude of the vector will be 8.0622 units.

What exactly is a vector?

A vector is a quantity with a magnitude, and direction that follows the law of vector addition.

Given data;

u = (7, –4)

The magnitude of the vector is, R found as;

[tex]\rm R = \sqrt{7^2+(-4^2)} \\\\ R = \sqrt {65} \\\\ R = 8.0622 \ units[/tex]

Hence the magnitude of the vector will be 8.0622 units.

To learn more about vectors, refer;

https://brainly.com/question/13322477

#SPJ2

Which is the inverse of the function a(d)=5d-3? And use the definition of inverse functions to prove a(d) and a-1(d) are inverse functions

Answers

Answer:

[tex]a'(d) = \frac{d}{5} + \frac{3}{5}[/tex]

[tex]a(a'(d)) = a'(a(d)) = d[/tex]

Step-by-step explanation:

Given

[tex]a(d) = 5d - 3[/tex]

Solving (a): Write as inverse function

[tex]a(d) = 5d - 3[/tex]

Represent a(d) as y

[tex]y = 5d - 3[/tex]

Swap positions of d and y

[tex]d = 5y - 3[/tex]

Make y the subject

[tex]5y = d + 3[/tex]

[tex]y = \frac{d}{5} + \frac{3}{5}[/tex]

Replace y with a'(d)

[tex]a'(d) = \frac{d}{5} + \frac{3}{5}[/tex]

Prove that a(d) and a'(d) are inverse functions

[tex]a'(d) = \frac{d}{5} + \frac{3}{5}[/tex] and [tex]a(d) = 5d - 3[/tex]

To do this, we prove that:

[tex]a(a'(d)) = a'(a(d)) = d[/tex]

Solving for [tex]a(a'(d))[/tex]

[tex]a(a'(d)) = a(\frac{d}{5} + \frac{3}{5})[/tex]

Substitute [tex]\frac{d}{5} + \frac{3}{5}[/tex] for d in [tex]a(d) = 5d - 3[/tex]

[tex]a(a'(d)) = 5(\frac{d}{5} + \frac{3}{5}) - 3[/tex]

[tex]a(a'(d)) = \frac{5d}{5} + \frac{15}{5} - 3[/tex]

[tex]a(a'(d)) = d + 3 - 3[/tex]

[tex]a(a'(d)) = d[/tex]

Solving for: [tex]a'(a(d))[/tex]

[tex]a'(a(d)) = a'(5d - 3)[/tex]

Substitute 5d - 3 for d in [tex]a'(d) = \frac{d}{5} + \frac{3}{5}[/tex]

[tex]a'(a(d)) = \frac{5d - 3}{5} + \frac{3}{5}[/tex]

Add fractions

[tex]a'(a(d)) = \frac{5d - 3+3}{5}[/tex]

[tex]a'(a(d)) = \frac{5d}{5}[/tex]

[tex]a'(a(d)) = d[/tex]

Hence:

[tex]a(a'(d)) = a'(a(d)) = d[/tex]

Dont answer this PLEAS

Answers

Answer:

why? also the answer is 1.6y+y-4/15y+7/6y=21/3

We move all terms to the left:

1.6y+y-4/15y+7/6y-(21/3)=0

Domain of the equation: 15y!=0

y!=0/15

y!=0

y∈R

Domain of the equation: 6y!=0

y!=0/6

y!=0

y∈R