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
UkoKoshka [18]
2 years ago
9

Can someone help me?

Mathematics
1 answer:
lilavasa [31]2 years ago
7 0
I think the scale factor of one block to the arrangement would be 1/9, since the arrangement contains 9 blocks.

So if the length at the top is 12 cm, the length of the bottom of a trapezoid would be 12(1/9) = 4/3

Since we know that each trapezoid holds 3 equilateral triangles, the length of each side and the top of the trapezoidal would be 4/3 x 1/2 = 2/3 cm

The sum of the angles must equal 360 degrees, and because they are made of equilateral triangles, you know that each angle of the triangle must be 60 degrees. So the bottom two angles of the trapezoid are each 60 degrees, and the top two are 360- 120 = 240 divided by 2 angles = 120 degrees each.
You might be interested in
Please help I will give out brainliest I have done the first one already.
pentagon [3]

Answer:

In drawing an elevation drawing, there are four or five views of the sides of an object which may be displayed including the front, rear,  and sides of the object

The elevation drawing is a scaled horizontal orthographic projection showing one side of an object to  a plane vertical parallel to the object's sides so as to depict the appearance of the completed object appearance

The required elevation is included in the attached diagram

Step-by-step explanation:

3 0
3 years ago
2,000 pencils are being divided into packages of 15. How many pencils will be left over?
Mashcka [7]
You have 133 pencils left.

5 0
2 years ago
Read 2 more answers
In Covina, California, the population is 47,000. The population increases 18% every year. Determine how long it will take to rea
Alexxandr [17]

Answer: 8.5 years

Step-by-step explanation:

Hi, to answer this question we have to apply an exponential growth function:

A = P (1 + r) t  

Where:

p = original population

r = growing rate (decimal form)  =18/100 = 0.18

t= years

A = population after t years

Replacing with the values given:

192,000 = 47,000 (1+ 0.18)^t

Solving for t:

192,000/47,000 = 1.18^t

4.08 =1.18^t

ln 4.08 = ln 1.18^t

ln 4.08 =t (ln 1.18)

ln 4.08 / ln 1.18  =t

8.5 years = t

Feel free to ask for more if needed or if you did not understand something.

8 0
3 years ago
Factors of 9.52? Please help. Google won’t tell
Elina [12.6K]

Answer:

9.52 x 1

4.26 x 2

4 x 2.38

Hope that helps

4 0
3 years ago
A company has determined that its weekly profit is a function of the number of items that it sells. Which equation could represe
Mrac [35]

Answer:

B. y= -x^2+50x-300

Step-by-step explanation:

A. y^2=4x^2-100

B. y= -x^2+50x-300

C. x=-y^2-400

D. x^2=-6y^2+200

we are to find profits (y) when the company sells x items

Option A can be used to calculate the profit (y) squared

Option B can be used to calculate profits (y)

Option C can be used to calculate items sold(x)

Option D can be used to calculate items sold squared(x^2)

We are asked to find the weekly profit (y) function which eliminate options A, C and D leaving us with option B

Therefore, the weekly profits (y) function in thousands of dollars when the company sells x items is

B. y= -x^2+50x-300

7 0
3 years ago
Read 2 more answers
Other questions:
  • Given two linear equations, explain how you can determine if the lines are parallel without graphing them
    13·1 answer
  • Plz help me get the answer to these
    15·2 answers
  • Number 4 please thanks
    10·1 answer
  • What happens to the value of the expression \dfrac{50}{p} p 50 ​ start fraction, 50, divided by, p, end fraction as p decreases
    15·1 answer
  • If tanA+sinA=m and tanA-sinA=n.prove that m^2-n^2=4√mn
    15·1 answer
  • Help me please ? Ill Mark brainlist
    6·2 answers
  • One of the tokens for a board game is a circle containing 5 congruent triangles, as modeled below.
    10·2 answers
  • Twenty-five volunteers will wear one of 6 blue, 7 green, 8 yellow, and 4 red aprons during an upcoming food drive. If the aprons
    14·1 answer
  • Write an equation of the line with a slope of 7 and y-intercept of 2. y =​
    8·1 answer
  • Jason builds doghouses for a pet store. Each doghouse is a wooden structure with a rectangular base that has an area of 21 squar
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!