1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Nastasia [14]
3 years ago
8

Can someone explain this ​

Mathematics
1 answer:
guajiro [1.7K]3 years ago
3 0
8+12=20
20+12=32
Just keep adding by 12
You might be interested in
Hey guys, can you help me please​
KatRina [158]
<h3>Answer: 93.382 square cm</h3>

=========================================================

Work Shown:

The green triangle in the back has height 2.6 and an unknown base x. Half of this is x/2, which I'll call y. So y = x/2.

The green triangle in the back is split along the vertical dotted line to get two right triangles. The base of each right triangle is y = x/2.

Use the Pythagorean theorem to find y. Use that to find x

a^2+b^2 = c^2

y^2+(2.6)^2 = (3.2)^2

y^2 + 6.76 = 10.24

y^2 = 10.24 - 6.76

y^2 = 3.48

y = sqrt(3.48) .... apply square root

y = 1.8654758 approximately

x/2 = 1.8654758

x = 2*1.8654758

x = 3.7309516 also approximate

The base of the triangle is roughly 3.7309516 meters

We can now find the area of one green triangle

area of triangle = base*height/2 = 3.7309516*2.6/2 = 4.85023708

two triangles have approximate area 2*(4.85023708) = 9.70047416

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

So far we've only considered the triangular faces. There are 3 more faces which are the rectangular sides. These are known as the lateral sides.

One way to get the lateral surface area is to multiply the perimeter of the triangle by the depth of the prism

perimeter of triangle = (side1)+(side2)+(side3)

perimeter = 3.7309516 + 3.2 + 3.2

perimeter = 10.1309516

lateral surface area = (depth)*(perimeter)

lateral surface area = (8.26)*(10.1309516)

lateral surface area = 83.681660216

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

The last step is to add this lateral surface area onto the area of the two triangles to get the full surface area

surface area = (triangular area) + (lateral surface area)

surface area = (9.70047416) + (83.681660216)

surface area = 93.382134376

surface area = 93.382 square cm

3 0
3 years ago
Read 2 more answers
Which fraction is equivalent to 12/27? help
Mkey [24]

\begin{gathered}\dfrac{12}{27}=\dfrac{12:3}{27:3}=\dfrac{4}{9}\\\\\dfrac{12}{27}=\dfrac{12\cdot2}{27\cdot2}=\dfrac{24}{54}\\\\\dfrac{12}{27}=\dfrac{4}{9}=\dfrac{4\cdot2}{9\cdot2}=\dfrac{8}{18}\\\vdots\end{gathered}

<h3>Hope This Helps You</h3>
7 0
3 years ago
Read 2 more answers
1/2(a+b)-(a-b)exponent2 when a=18 and b=14
lora16 [44]

Answer:

0

Step-by-step explanation:

Substitute the given values for a and b into the expression

\frac{1}{2}(18 + 14) - (18 - 14)²

= \frac{1}{2} × 32 - 4²

= 16 - 16

= 0

8 0
3 years ago
The sum of two numbers is 57. The smaller number is 19 less than the larger number. What are the numbers?
Rufina [12.5K]
The numbers are 38 and 19
6 0
3 years ago
Read 2 more answers
What is 25 divided by .5
Stella [2.4K]
5
because 5 goes 5 times into 25 also its a square root of 25 hope this helped  <span />
4 0
3 years ago
Read 2 more answers
Other questions:
  • Can someone please help me with this?​
    9·1 answer
  • Please help me asap!!
    15·1 answer
  • the probability it will rain tomorrow is 1/2. the probability that our team will win tomorrrow's basketball game is 3/5. which e
    12·1 answer
  • What is 72 + 4x = 2x + 82
    8·1 answer
  • If m angle ABD=79 degrees , what are m angle ABC and m angle DBC​
    14·1 answer
  • What is the value 12-6•(5-3)-60
    15·1 answer
  • PLEASE ANSWER THE QUESTION IN THE IMAGEEEEE
    15·2 answers
  • What is f(0) for the function f(x) =2x+3
    10·2 answers
  • A pogo stick bounces for 30 m in 10 S what is the bouncers average speed
    5·1 answer
  • I am in need of help !!
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!