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
marin [14]
3 years ago
6

PLLLZZ HELP!!!!

Mathematics
1 answer:
topjm [15]3 years ago
8 0

Answer:

3. A quadrilateral with each side length 4 cm

Step-by-step explanation:

We need to understand what is a unique polygon?

<em>It means all regular polygons with the same number of sides are similar.</em>

1.A triangle with angles 30 degrees, 60 degrees, and 90 degrees

It is an right triangle, so the 3 sides are not simillar, so it is wrong

2. A triangle with side lengths 5 cm, 4 cm, and 3 cm

It is a triangle with the 3 sides are not simillar, so it is wrong

3. A quadrilateral with each side length 4 cm

It is an square with the 4 sides are simillar, so it is true

4. A triangle with side lengths 7 cm and 8 cm and a 40-degree angle

It is a triangle with the 3 sides are not simillar, so it is wrong

Hence, we choose 3.

You might be interested in
The Quadratic Equation c² + 6c+ 8 = 0<br><br> Show work please
Bad White [126]
The formula for the quadratic formula is x (c in this case) = (-b(+/-)√(b²-4ac))/2a
This is used for an equation in standard quadratic form: ax² + bx + c = 0
1.) Put it in the correct form, if not already in it.
Ex. c² + 6c + 8 = 0
2.) Identify each part of the equation:
a = 1 (the leading coefficient), b = 6 (the coefficient in front of the second variable), c = 8
3.) Plug in each variable answer
c = (-6(+/-)√(6²-4(1)(8))/2(1)
4.) Simplify
c = (-6(+/-)√(36-(4*8))/2
c = (-6(+/-)√(36-32))/2
c = (-6(+/-)√(4))/2
c = (-6(+/-)2)/2
*Here, the equation splits in two. It becomes:
c = (-6+2)/2 AND c = (-6-2)/2
*Simplify again:
c = -4/2 AND c = -8/2
c = -2 AND c = -4
The answers c = -2 and c = -4 would solve the given equation.
Hope this helps! :)
6 0
3 years ago
Read 2 more answers
44 kg of onions cost $308. How much would 30 kg cost?
maks197457 [2]

Answer:

$210

Step-by-step explanation:

Cost of 44kg onions = $308

Cost of 1kg onion = \frac{308}{44}  = 7

Cost of 30kg onions = 30 \times 7 = 210

7 0
2 years ago
Negative one fourths times negative six elevenths
Ipatiy [6.2K]

You multiply fractions simply by multiplying numerators and denominators with each other:

-\dfrac{1}{4} \times \left(-\dfrac{6}{11}\right) = \dfrac{1 \times 6}{4 \times 11} = \dfrac{6}{44} = \dfrac{3}{22}

3 0
3 years ago
1. In a city in Ohio, the sales tax rate is 7.25%. Complete the table to sho
lawyer [7]

Answer

the answer is 76%

Step-by-step explanation:

I did all my equations and showed my work

7 0
3 years ago
Jared has 12 more comic books than Zoe. If they have 28 comic books
ZanzabumX [31]

Answer:

20 comic books

Step-by-step explanation:

Let us first <u>set up a variable</u>, x, for the number of books that Zoe has. If Jared has 12 more comics than Zoe, he would have x+12 books.

Given that Zoe and Jared have a total of 28 comic books, let us write an <u>equation</u> and solve for x:

x+x+12=28\\2x+12=28

Now that we have a <u>simplified</u> version of the equation, let us solve for x by <u>isolating the variable</u> on the left side:

2x=28-12\\2x=16\\x=8

We now know that x=8, and also that Jared has x+12 books. To find the number of comic books Jared has, let us <u>add</u> 12 to x:

x+12=\\8+12=\\20\\

Therefore, Jared has 20 comic books.

<em>I hope this helps! Please let me know if you have any further questions :)</em>

4 0
2 years ago
Other questions:
  • An engineer measures the peak current (in microamps) when a solution containing an amount of nickel (in parts per 106 ) is added
    7·1 answer
  • Four hundred twenty-five and fifty-two hundredths in standard form
    15·1 answer
  • What is the resulting polynomial when 3x+7 is multiplied by 2x-6
    15·1 answer
  • My favorite songdress
    10·1 answer
  • 36 people attended Quintero’s Super Bowl party. Each person cheered for either the Patriots or the Rams. If 15 people were rooti
    12·1 answer
  • There are 10 balloons in an arrangement and 7 of them are red. What percentage of red balloons are in the arrangement?
    10·1 answer
  • Q15) 1.0 marks<br>Choose the missing term in the below series.<br>26, 37, 50, 65, 82, ?<br>​
    12·2 answers
  • The time period of a pendulum is 0.5 s. No of oscillations of the pendulum is 20. Find the time taken to complete 20 oscillation
    14·2 answers
  • For what value of Y does 125=(1/25) Y-1
    12·1 answer
  • Recipe calls for a total of 3 and two-thirdscups flour and sugar. If the recipe calls for One-fourthcup of sugar, how much flour
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!