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
Arisa [49]
3 years ago
5

(( I will give 25 points and brainy from right answers (Please answer all!!) )

Mathematics
1 answer:
sleet_krkn [62]3 years ago
6 0
1. C. Concave pentagon

2. A. 1620°

b/c (11 - 2) × 180 = 1620

3. B. 165°

b/c (24 - 2) × 180 ÷ 24 = 165

4. A. 160°

b/c (18 - 2) × 180 ÷ 18 = 160
You might be interested in
Help due soon plss!!!!
Gelneren [198K]

Answer:

Cube=150cm^2

Triangular Prism=228ft^2

Step-by-step explanation:

Cube

A=6a^2=6*5^2=150cm^2

Triangular prism

Using these formulas

A=2A_{B}+(a+b+c)h\\A_{B} =\sqrt{s(s*a)(s*b)(s*c)} \\s=\frac{a+b+c}{2}

Solving for A

A=ah+bh+ch+\frac{1}{2} \sqrt{-a^4+2(ab)^2+2(ac)^2-b^4+2(bc)^2-c^4} \\=6.5*11+5*11+6.5*11+\frac{1}{2} *\sqrt{-6.5^4+2*(6.5*5)^2+2*(6.5*6.5)^2-5^4+2*(5*6.5)^2-6.5^4} \\=228ft^2

5 0
3 years ago
2. Solve the system of equations using the substitution method.
Dimas [21]

Answer:

x = 1

Step-by-step explanation:

2x + 3y = 20

2x + 3(10-4x) = 20

2x + 30 - 12x = 20

combine like terms

-10x + 30 =  20

        -30      -30

-10x = -10

divide both sides by -10

x = 1

Hope this Helps!!!

7 0
3 years ago
Which completely describes the polygon?
bogdanovich [222]

option D none of the above

4 0
3 years ago
Use the rational zero theorem to determine all possible rational zeros of f(x)=3x^3-2x^2+5x+9
sukhopar [10]

Answer:

work it out it is so easy

Step-by-step explanation:

8 0
3 years ago
ASAP PLEASE HELP NO LINKS
ArbitrLikvidat [17]

Answer:

a is 3,2 b is 1,-2 and c is -2,1

Step-by-step explanation:

u take the first number then you just put em together

5 0
2 years ago
Other questions:
  • Need Help PLLLEEAASSSSEEEE,
    9·1 answer
  • Is. 36yd2ft bigger than 114ft 2in
    10·1 answer
  • Disproof by counter example: For all positive integers x: 1/x < 1
    14·1 answer
  • Who knows proportional relationships? and how to solve these both
    5·1 answer
  • 1000 randomly selected Americans were asked if they believed the minimum wage should be raised. 600 said yes. Construct a 95% co
    10·1 answer
  • The size of a large milkshake is 1.4 times the size of a medium milkshake. Write 1.4 as a percent
    13·2 answers
  • Write the equation for the graph with vertex (–6, 2) and focus (–7.25, 2).
    11·2 answers
  • Describe and correct the error in solving the following rational equation , plz help!!!!!
    8·1 answer
  • Pls answer this if you do I mark brainlest​
    11·2 answers
  • What is the measure of arc FG?<br> PLEASE HELP , i’ll make BRAINLIEST
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!