8. In geology, every era ends when there is a
high numbers of species are becoming extinct.
or a period of time when

Answer:

Area of five squares = 1289.09 square units

Perimeter =  194.6 units

Step-by-step explanation:

Area of square and perimeter:

   First find the length of each square, then find the area of each square.

To find the area of five squares, add all the area of each square.

Side of square1 = 27 units

\(\sf Side \ of \ square2 = \dfrac{2}{3}*27=2*9 = 18 \ units\\\\Side \ of\ square3= \dfrac{2}{3}*18=2*6=12 \ units\\\\Side \ of \ square4=\dfrac{2}{3}*12=2*4=8 \ units\\\\Side \ of \ square5=\dfrac{2}{3}*8=\dfrac{16}{3}=5.3 \ units\)

Area of square1 = 27*27 = 729 square units

Area of square2 = 18*18 = 324 square units

Area of square3 = 12*12 = 144 square units

Area of square4 = 8*8 = 64 square units

Area of square5 = 5.3*5.3 = 28.09 square units

Area of five squares = 729 + 324 + 144 + 64 +28.09

                                  = 1289.09 square units

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Perimeter of the composite figure = (27 + 27+27+9) + (18+18+6) +(12+12+4) + (8+8+2.7)+ (5.3+5.3+5.3)

                                                         = 90 + 42 + 28 + 18.7 + 15.9

                                                          = 194.6 units

Answer:

abc

2. 45abr

3. 25ab

4. 2rs

5. 18rst

3 ∙ 3 ∙ 5 ∙ a ∙ b ∙ r

5 ∙ 5 ∙ a ∙ b

2 ∙ r ∙ s

2 ∙ 3 ∙ 3 ∙ r ∙ s ∙ t

Step-by-step explanation:

abc

2. 45abr

3. 25ab

4. 2rs

5. 18rst

3 ∙ 3 ∙ 5 ∙ a ∙ b ∙ r

5 ∙ 5 ∙ a ∙ b

2 ∙ r ∙ s

2 ∙ 3 ∙ 3 ∙ r ∙ s ∙ tabc

2. 45abr

3. 25ab

4. 2rs

5. 18rst

3 ∙ 3 ∙ 5 ∙ a ∙ b ∙ r

5 ∙ 5 ∙ a ∙ b

2 ∙ r ∙ s

2 ∙ 3 ∙ 3 ∙ r ∙ s ∙ t

The items in the left are matched to one in the right as follows.

Prime factorization is the method of writing a number as the product of the prime factors.

For example 8 can be written as 8 = 2 × 2 × 2

The expression in the left is a multiplied form and that on the right is the prime factorized form.

1) 30abc

30 = 2 × 15 = 2 × 3 × 5

30abc = 2 × 3 × 5 × a × b × c

2) 45abr

45 = 3 × 15 = 3 × 3 × 5

45abr = 3 × 3 × 5 × a × b × r

3) 25ab

25 = 5 × 5

25ab = 5 × 5 × a × b

4) 2rs

2rs = 2 × r × s

5) 18rst

18 = 2 × 9 = 2 × 3 × 3

18rst = 2 × 3 × 3 × r × s × t

Hence the matching expressions are found.

Learn more about Prime Factorization here :

https://brainly.com/question/29775157

#SPJ3

Negative 3, negative 2.4, negative 1.5, negative 2 and one-fourth, negative 1 and one-eighth

Hope my answer helps you✌️

Answer:

5.5

Step-by-step explanation:

2,3,3,4,5,7,8,8,8,10,10,12

The mean of this data is 7.5.  So what you are trying to figure out is the mean between 2 and 7.  Since that is 3 and 4 it would be 3.5.  So 3.5 is the Q1.  Now you have to figure out the mean between 8 and 12.  That is 9.  This is Q3.  You have to subtract 9-3.5 and that is the interquartile range. So 5.5 is the answer.  I hope that made sense.

Answer:

y=4x-6

Step-by-step explanation:

The equation of the line is y=mx+c where m is the slope and c is the intercept.

To find the slope, take two points \((x_{1},y_{1})\) and \((x_{2},y_{2})\) and use the equation \(m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}\). Let's take (1,-2) and (2,2) as our two points:

\(m=\frac{2-(-2)}{2-1}=\frac{4}{1}=4\)

The y-intercept is where the line crosses the y-axis. We can see from the graph that the line crosses the y-axis at -6, therefore c= -6.

Now we can write the equation of this line: y=4x-6

Answer:

The answer is y=4x-6

Answer:

52%

Step-by-step explanation:

52 out of 100 is the same as .52, when you put that as a percentage, you get 52%

Answer: 36 inches (in.)

Step-by-step explanation:

The first thing you need to do is form a right triangle from the starting point to the hole to the corner where the ball is at. Right triangles have a hypotenuse (the longest side), and two legs (the shorter sides).

We are told next to the drawing that it’s 39 feet from the staring point to the hole (given a straight line). This is the length of our hypotenuse. We are also given the length of one of the legs, with it being 36 feet.

We need to find the length of the last leg, the length from the ball to the hole. To do this, we can use the Pythagorean Theorem. The Pythagorean Theorem states that the square of each of the legs equals the square of the hypotenuse. The formula for the Pythagorean Theorem is \(a^{2} +b^{2} =c^{2}\), with \(a\) and \(b\) being the legs, and \(c\) representing the hypotenuse.

Input the given values into the formula and you get the following:

\(a^{2} +b^{2} =c^{2}\)
\(36^{2} + x^{2} =39^{2}\)

\(\sqrt{36^{2} } +\sqrt{x^2} =\sqrt{39^2}\)

\(36 +x =39\)

\(x=3\)

Therefore, the length from the ball to the hole is 3 feet (ft.).

BUT WAIT
The question asks us to provide our answer in inches (in.), and 1 foot equals 12 inches.

Therefore, the distance from the ball to the hole is 36 inches (in.).

Answer:

That is correct

Step-by-step explanation:

Answer: 3.14 multiplied by 35 squared gives you 3,850, So the answer is C

Step-by-step explanation:

Answer:

7/8

Step-by-step explanation:

1/2= 4/8

1/4= 2/8

adding 4/8+2/8+1/8= 7/8

Answer:

18.75%

Step-by-step explanation:

(round answer if needed)

Answer: 18.75%

Step-by-step explanation:

divide 100 by 16

100/16=6.25

6.25x3=18.75

Answer:

3

Step-by-step explanation:

Answer:

3.5=a

Step-by-step explanation:

-4.5 = a - 8

+8          +8

3.5=a

your welcome

Answer:

120 blocks total

Step-by-step explanation:

All of the little cubes have side length 2"  Thus, the 11" height of the box cannot be used entirely:  we waste the top 1" because the five layers of little cubes reach only to 10" from the bottom.

Start at the bottom of the box.  The dimensions of the bottom are 12" by 8".  Along the longer side we can lay 6 blocks (which add up to 12" and are 2" wide.  We can add 3 more such rows to fill the available 8" width of the box bottom.  That's 6*4, or 24 blocks.

We can add 4 more 6 block by 4 block layers before we have the maximum 5 layers stacked in the box.

5 layers times 24 blocks per layer comes to 120 blocks total.

Answer:

Step-by-step explanation:

Answer:

The area of the Triangle is 4.

Answer:

(-2.1) x (-1.4) = 2.94

Step-by-step explanation:

May I have Brainliest please? My next rank will be the highest one: A GENIUS! Please help me on this journey to become top of the ranks! I only need 10 more brainliest to become a genius! I would really appreciate it, and it would make my day! Thank you so much, and have a wonderful rest of your day!

Answer:

5. Eastside Middle School has 75%

Step-by-step explanation:

Answer:

Step-by-step explanation:

a) 4x¹⁰ = 2² * x¹⁰

   64x² = 2⁶ *x²

GCF = 2² * x² = 4x²

b) 4x¹⁰ - 64x² = 4x²*(x⁸ - 16)

                  =4x² *[ (x⁴)² - 4²]

                  = 4x² * (x⁴ + 4) (x⁴ - 4)

                  = 4x² * (x⁴ + 4)* [(x²)²- 2²]

                  =4x² * (x⁴ + 4) * (x² + 2)(x² - 2)

Answer: Model B

Step-by-step explanation: Model B, shows the cutting of 40%  of the ribbon since, if you divide it into 10 parts, with each piece representing 10%, if you take away 4 of those parts, which is equal to 40%. So it is Model B.

Answer:

y = 3x-7

Step-by-step explanation:

Lines that are parallel have the same slopes.  

y = 3x-4  ---> y=mx+b (slope = m=3)

point-slope formula for a line:  y - y1 = m(x-x1)

 slope=m=3

(3,2)----> (x1,y1)

y - 2 = 3(x-3)

y - 2 = 3x-9

y = 3x-7

Answer:

x=157°

Step-by-step explanation:

opposite angles are equal so the angle opposite the 45° is also 45°

angles around a point add to 360°

so if we take away both the 45° we are left with the two other angles, one of them part of the triangle

360°-45°45°=270°

divide this by 2 to get the 2 angles

270°÷2=135°

angles in a triangle add to 180°

180°-22°-135°=23°

23° is the other angle in the triangle next to x

finally angles on a straight line add to 180°

180°-23°=157°

so x=157°

Answer:

I agree with the person in the comments 75km/h

Step-by-step explanation:

Answer:

75km/h.

Step-by-step explanation:

Answer:  36 is a multiple of 12

2 is a prime number.

2 is a factor of 64

Step-by-step explanation:

12 × 3 =36, so 12 is one of the factors.

2 is the only even prime number. All other even numbers are multiples of 2.

9 is not a prime number. 3 × 3 = 9

2 is a factor of 64.  2 × 32 = 64  None of the other numbers given can divide evenly into 64, so they are not factors of 64.

Answer:36 is a multiple of 12

Step-by-step explanation:

Answer:

the answer is 18

Step-by-step explanation:

Answer:

20 units

Step-by-step explanation:

(16, 0), (0, 12)

(x₁, y₁)   (x₂, y₂)

d = √(x₂ - x₁)² + (y₂ - y₁)²

d = √(0 - 16)² + (12 - 0)²

d = √(-16)² + (12)²

d = √(-16)² + (12)²

d = √256 + 144

d = √400

d = 20

I hope this helps!

Answer:

Step-by-step explanation: