Mathematics High School

You are going on an expedition to dig for dinosaur fossils. In digging you come across a small trunk left by another archeologist. In the trunk is a paper that lists how deep you need to dig to reach dinosaur fossils. Unfortunately, something spilled on part of the paper and it is damaged.
Using your knowledge of mathematics, find the missing numbers in the
chart. Write a generalization or rule to determine any number of feet you
must dig given the number of years.

If the Jurassic period was 200 million years ago, how deep would you need
to dig at this location to uncover fossils of that era? Explain why your
answer is or is not reasonable.

You Are Going On An Expedition To Dig For Dinosaur Fossils. In Digging You Come Across A Small Trunk

Answers

Answer 1

Answer:

200,000 feet to dig

Step-by-step explanation:

We use a ratio for this problem

30,000         200,000,000

-----------   =   ---------------------

30                        x

200,000,000 * 30

----------------------------  = 200,000 feet to dig

30,000

This answer is reasonable because 200,000,000 years ago was a long time ago so then the person must dig a reasonable amount of dirt. So then 200,000 feet is reasonable.

Related Questions

please help giving all my points

Answers

Answer:

Step-by-step explanation:

1. Subtraction

2.multiplication

Answer:

number 2. is Subtraction Property of equality and number 3 is multiplication property of equality.

Step-by-step explanation:

Please help!!!

What is the missing value and why?

Answers

Answer:

11

Step-by-step explanation:

I WILL MARK BRAINLYIST
Describe Programming Languages
Complete each sentence by choosing the correct answer from the drop-down menu.

The data type in a strongly typed language
before the variable can be used.
An example of a strongly typed language is

The data type in a weakly typed language
before the variable can be used.
An example of a weakly typed language is
.

Answers

Answer:

Complete each sentence by choosing the correct answer from the drop-down menu.

The data type in a strongly typed language  

✔ has to be stated

before the variable can be used.

An example of a strongly typed language is  

✔ JavaScript

.

The data type in a weakly typed language  

✔ does not have to be stated

before the variable can be used.

An example of a weakly typed language is  

✔ Python

.

Step-by-step explanation:

Theres no explanation just get the answers and say thanks lolololoo

Answer:

 

✔ has to be stated

✔ JavaScript

✔ does not have to be stated

 

✔ Python

Identify any solutions to the system shown here.
2x + 3y 26
3x +2y 56

Answers

Answer:

Add more points  (0.5, 2), (-2,4)

Step-by-step explanation:

Where are the black dots located?!!

Answers

-2, 2 and for the other 4,5

Answer:

(-2,2) ; (4,5)

Step-by-step explanation:

4 5/7 + 3 3/4 = ??
Simplify ur answer
Show ur work

Answers

Answer:

237/28

Step-by-step explanation:

4 5/7=33/7

3 3/4=15/4

----------------

33/7+15/4=132/28+105/28=237/28

Answer:

8 13/28 or as a decimal: 8.46

Step-by-step explanation:

Rewrite the sum:

(4+3)+(5/7+3/4)

Add the numbers 4+3:

7+(5/7+3/4)

Add the fractions:

7+41/28

Convert the improper fraction into a mixed number:

7 + 1 13/28

Write the mixed number as a sum of the whole number and the fractional part:

7+1+13/28

Add the numbers 7+1 and then there is your answer!

8 13/28

If your paper, quiz, homework, etc says decimal form or alternative form then the decimal form is 8.46 and the alternate form is 237/26. But 8 13/28 cannot be reduced any lower.

Find the slope of the line parallel to the line through the given points (4,-2),(-1,8)

Answers

slope = -10/5 = -2


Hope this helps!!

Answer:

-2

Step-by-step explanation:

Parallel lines have the same slope, so find the slope of this line

Use rise over run, (y2 - y1) / (x2 - x1)

(y2 - y1) / (x2 - x1)

(8 + 2) / (-1 - 4)

10 / -5

= -2

So, the slope of the line is -2

3.) 4(m + 5) + 42, (m = -2)​

Answers

The answer would be 54 since m=-2

Step one: 4(-2+5)+42
Step two: (-8+20)+42=54

Answer:

54

Step-by-step explanation:

The variable m equals -2, so what you would do is plug it into the equation.

4(-2+5)+42

Next you would distribute the 4 into -2 & 5.

(-8+20) + 42

Add what's in the parenthesis.

12 + 42

Once you add that you will be left with your answer which is 54.

Hope this helped!

Please help I do not understand it,Cos A=

Answers

40/9 alalalalalalalalalalaallaallalalaalal
9/41 it’s adjacent over hypotenuse

-(2g - 4)
I don’t what the answer is

Answers

Answer:

−2+4

Step-by-step explanation:

Answer:

-2g+4

Step-by-step explanation:

you have to distriute the negitive

-2g+4

so that is your answer

i hope this helps   :)

How tall is the bullding in the picture shown?
66 in.
36 ft
8 ft
4.36 ft
52.36 ft
24.75 ft
297 ft

Answers

Answer:

24.75FT

Step-by-step explanation:

The triangles in the picture are similar meaning that 36/8=4.5

66inches into ft = 3.5

3.5x4.5=24.75

Answer: C. 24.75 ft

Step-by-step explanation:

• Set up the proportion.

• Cross multiply.

• Complete the multiplication on the left side.

• Divide both sides by 100.

• Complete the divisions on both sides.

Please Help!

Which Triangles are similar and why?

Answers

Both because they are all the same triangle

I’m confused about this problem

Answers

Cosx=180/114

X= cos inverse 180/114

You know how to do cos inverse on the calculator??or should i tell you?

x= arctan (114/180)

=32.34744..

rounded to the nearest tenth =32.3

Step-by-step explanation:

How would you solve this question?

Answers

Answer:

K

Step-by-step explanation:

techincally, I don't know if I am right, but there is more than one answer. The boundries/restrictions of what length DF could be are 2.477 < x < 8.477

There are 27 boys and 38 girls in the Bounders athletics club.
a. write the ratio of boys to girls in the form 1:n

Answers

Answer:

27:38 no more simplfying

Step-by-step explanation:

Please help :( I’m not understanding this question

Answers

Answer:

False

True

True

False

Step-by-step explanation:

Hope that helps!

Answer:

true false true true

Step-by-step explanation:

gd

A line that includes the point (10,7) has a slope of 1. What is it's equation in slope-intercept form? ​

Answers

y=x-3 hope it’s right

The table shows the number of tropical cyclones that formed during the hurricane
seasons over a 12-year period.
a. Find the probability to predict whether a future tropical cyclone in the Northern
Hemisphere is a hurricane. Round your answer to the nearest tenth.
about
%
b. Find the probability to predict whether a hurricane is in the Southern Hemisphere
Round your answer to the nearest tenth.
about
1%

Answers

Answer:

A.) is 46.2

B.) is 58.1

Step-by-step explanation:

Do the points A(-2,1), B(-2,4), C(3, 4), D(3, 1) form a square?

Answers

Answer: i don't think they do

Step-by-step explanation: tell me if i wrong

No they form a rectangle because the sides are 3 and 5.
A squares has 4 equal sides. A rectangle has 2 opposite sides equal.


The average diameter of a tree is measured over time. The equation y = 3/4x, where x is time in years and y is the
diameter in inches, models this relationship.
What is the predicted diameter, in inches, of the tree after 12 years?

Answers

Answer:

The predicted diameter of a tree after 12 years is 9 inches.

Step-by-step explanation:

The average diameter of the tree is represented by [tex]y = \frac{3}{4}\cdot x[/tex]. The predicted diameter of the tree after 12 years is determined by evaluating the linear function at [tex]x = 12[/tex]. That is:

[tex]y = \frac{3}{4}\cdot (12)[/tex]

[tex]y = 9[/tex]

The predicted diameter of a tree after 12 years is 9 inches.

multiple choice geometry helPppp

Answers

Answer: D

Step-by-step explanation:

Use SOHCAHTOA

We are given the opposite of the angle and the hypotenuse. We can use the sine function to acquire the value of x°.

sin(x) = 7/13

Take the inverse sine on both sides by using a calculator to get:

x = 32.58°

Answer:

32.58° that the answer hope this helps

Which type of triangle is formed by joining three line segments with the following lengths?

8 in, 8 in, 8 in

Answers

Answer:

Equilateral Triangle

Step-by-step explanation:

show graph of f(-x+2)

Answers

this is the graph but it’s a bit cropped

PLEASE HELP!!!!!!!!!!

Answers

Answer:

a = 30

b = 15

c = 3

d = 30

e = 10

f = 20

Step-by-step explanation:

60 deg and a + 30 are alt int <S and congruent

a + 30 = 60

a = 30

a + 30 and a + 2b are corresponding angles and congruent

a + 2b = a + 30

2b = 30

b = 15

a + 2b and 5b - 5c are vertical angles and congruent

5b - 5c = a + 2b

5(15) - 5c = 30 + 2(15)

75 - 5c = 30 + 30

75 - 5c = 60

-5c = -15

c = 3

a + 2b and 10c + d are corresponding angles and congruent

10c + d = a + 2b

10(3) + d = 30 + 2(15)

d + 30 = 60

d = 30

5b - 5c and 2d + 6e are supplementary and add to 180

5b - 5c + 2d + 6e = 180

5(15) - 5(3) + 2(30) + 6e = 180

75 - 15 + 60 + 6e = 180

6e + 120 = 180

6e = 60

e = 10

2d + 6e and 4f + 4e are alt int angles and congruent.

4f + 4e = 2d + 6e

4f + 4(10) + 2(30) + 6(10)

4f + 40 = 60 + 60

4f + 40 = 120

4f = 80

f = 20

what is this type of question called and how can i solve it?

Answers

Answer:

Total number of year pass [n] = 22 year (Approx)

Step-by-step explanation:

Given:

Beginning price of cottage [P] = $25,000

Price reduce every year [r] = 10% = 0.1

Final price [A] = $2,500

Find:

Total number of year pass [n]

Computation:

A = P[1-r]ⁿ

2,500 = 25,000[1-0.1]ⁿ

0.1 = [0.9]ⁿ

Total number of year pass [n] = 22 year (Approx)

What is the value of 4 in 145,027

Answers

Answer:

40,000

Step-by-step explanation:

100,000 + 40,000 + 5,000 + 20 + 7 = 145,027

Which one is it???????

Answers

Answer:

up 6

mayby

.........

Answer:

Left 6 is the answer

Step-by-step explanation:

You must move it in the left to be able to solve it

What is the equation of a line that has a slope of -5 and passes through the point (0, 2)?
y = -5x
y = 2x - 5
y = -5x + 2

Answers

Answer:

y= -5x+2 is the equation.

Answer:

y= -5x + 2

Step-by-step explanation:

y = mx + b(we will put the points of "x" and "y" into this formula)

2= -5 (0) +b( as "x" is "0" and is multiplied by "-5" it will become "0" giving us the value of "b")

2=b(finally we will substitute this answer in the formula we've written)

therefore the answer will be:

y= -5x + 2

Jen rode her bike 15of a mile to her friend's house. It took her 5 minutes to get there. What was Jen's speed?

Answers

Answer:

2.4MPH

Step-by-step explanation:

Use the principle of rate x time:

(1/5)*5=1

1 mile per 25 minutes= 2.4 mph

MARK AS BRAINLIEST

Stewart has a home-based business putting on children’s parties. He charges $60 to design the party and then $6.00 per child. Write a function rule that relates the total cost of the party to the number of children n.


f(n) = 6 + 60n

f(n) = 6n – 55

f(n) = 60 + 6n

f(n) = 6 – 55n

Answers

Answer:

f(n) = 60 + 6n

Step-by-step explanation:

numbers of students = n

party decoration charge = 60

per child cost = 6

so, therefore

f(n) = 60 + 6n

MARK ME AS BRAINLISTPLZ FOLLOW ME

Answer: A. f(n) 60 + 6n

60 is constant

6 per child is variable

Let c = number of children

total cost = 60 +6c

Step-by-step explanation: i got it from somebody else's brainly

If there are n children, and each additional child who joins will add another $6 to the cost, then the cost due to the number of children will be 6n. We also have the fixed cost of $60, no matter how many children join. Therefore, we add up these costs to get Cost = f(n) = 60 + 6n.

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