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
dezoksy [38]
2 years ago
6

The endpoints of one side of a regular pentagon or -1, four and two, three what is the perimeter of the Pentagon

Mathematics
1 answer:
forsale [732]2 years ago
8 0

Answer:

Step-by-step explanation:

(-1,4),(2,3)\\ \\ s^2=(-1-2)^2+(4-3)^2\\ \\ s^2=9+1\\ \\ s^2=10\\ \\ s=\sqrt{10}\\ \\ p=5s\\ \\ p=5\sqrt{10}\ exact\\ \\ p\approx 15.8

You might be interested in
Jill sold 478 out of 520 tickets to the opening night of her theater performance. What portion of the tickets did she sell?
Arte-miy333 [17]

Answer:

write your answer as a decimal, then round

6 0
2 years ago
Solve for x<br> And show work
klemol [59]

Answer:

x = -8

Step-by-step explanation:

1. Because the line the angles x + 96 and 100 + x are on is straight, it's a straight angle that results in 180°.

2. Given the above information, that means x + 96 + 100 + x = 180.

3. (Solving for equation above)

Step 1: Simplify both sides of the equation.

  • (x+x) + (96+100)=180
  • 2x + 196 = 180

Step 2: Subtract 196 from both sides.

  • 2x + 196 - 196 = 180 - 196
  • 2x = -16

Step 3: Divide both sides by 2.

  • \frac{2x}{2} = \frac{-16}{2}
  • x = -8

Step 4: Check if solution is correct.

  • -8 + 96 + 100 - 8 = 180
  • 88 + 100 - 8 = 180
  • 188-8=180
  • 180=180

Therefore, x = -8.

6 0
2 years ago
Read 2 more answers
an open rectangular cardboard box with a square base is to have a volume of 256cm^3. Find the dimensions of the box if the area
Anit [1.1K]
Let
x------> the length side of the square base of the box
y-------> the height of the box

we know that
volume of the box=b²*h
b=x
h=y
volume=256 cm³
so
256=x²*y------>y=256/x²-------->  equation 1

<span>The amount of material used is directly proportional to the surface area, so we will minimize the amount of material by minimizing the surface area.</span>

surface area of the cardboard=area of the base+perimeter of base*height
area of the base=x²
perimeter of the base=4*x
height=y
surface area=x²+4x*y-----> equation 2
substitute equation 1 in equation 2
SA=x²+4x*[256/x²]-----> SA=x²+1024/x

step 1 
find the first derivative of SA and equate to zero
2x+1024*(-1)/x²=0------> 2x=1024/x²----> x³=512--------> x=8 cm
y=256/x²------> y=256/8²-----> y=4 cm

the answer is
the length side of the square base of the box is 8 cm
the height of the box is 4 cm

5 0
3 years ago
Alpha false and true Which of the following statements are true? If false, explain briefly.
solmaris [256]

Answer:

A. False

B. True

C. True

D.True

Step-by-step explanation:

A. False . The significance level or alpha is the probability of rejecting the null hypothesis when it is true. For example, a significance level of 0.05 indicates a 5% risk of concluding that a difference exists when there is no actual difference. 0.01 alpha is better than 0.05 alpha . 0.01 indicate a 1% risk of rejecting the null hypothesis when it is true .

B. True . If the p-value is less than alpha, we reject the null hypothesis . Therefore statistically significant.

C . True . If the p-value is less than alpha, we reject the null hypothesis

D. True . Alpha will be greater than p-value . Therefore we will reject .

8 0
3 years ago
MONTRESOR: My dear Fortunato, you are luckily met. How remarkably well you are looking to-day! But I have received a pipe of wha
RSB [31]

Answer:

Montresor is luring Fortunato to a trap.

Step-by-step explanation:

Montresor is luring Fortunato to a trap that Montresor has prepared in his own basement.

In the story by Edgar Allen Poe, Montresor (the narrator) tells the reader that Fortunato has horribly insulted Montresor and Montresor will get revenge.

7 0
3 years ago
Other questions:
  • which ordered pair is a solution of the equation y=4x-7 A. only (2,1) B. only (4,9) C. Both (2,1) and ( 4,9) D Neither
    14·1 answer
  • Write y = 2x2-12x+25 in vertex form, plz show work.
    11·1 answer
  • Joe's mom spend $60 at target 3/4 of that money was spend on groceries. How much she spend on groceries
    10·1 answer
  • What is 40% of 42?<br> Please answer fast
    14·2 answers
  • EASY 50 POINTS. PLEASE HELP!!!
    12·1 answer
  • Please help me I will mark BRAINLIEST!!! Find the value of x
    7·1 answer
  • Tan 0 = -2, 0
    8·1 answer
  • Use your value of x to find the measure of angle n<br><br> Please help me
    8·2 answers
  • H ( x ) { − 2 + 3 , i f x &lt; 1 1 /2 x + 1 if x ≥ 1 }
    7·1 answer
  • Balance this equation:<br> HgO ---&gt; 2Hg + O2
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!