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
LuckyWell [14K]
2 years ago
5

Hey you can help me out

Mathematics
2 answers:
Ivenika [448]2 years ago
8 0

Answer:

<u><em>O D) 540°</em></u>

Step-by-step explanation:

<em>The internal angle sum of a pentagon is 540°.</em>

<em>No shape has an internal angle sum of 90°, 180° is angle sum of a triangle, and 360° for a quadrilateral.</em>

<em></em>

<em>Hope it helps.</em>

<em>;)</em>

<em><3</em>

Lana71 [14]2 years ago
3 0
Answer:

D)540 degrees

Step by step explanation:

A pentagon has 5 sides, and can be made from 3 triangles so you know what its interior angles add up to 3x180 degrees=540 degrees
You might be interested in
How do you factor this expression by dividing by the GCF first. 15c-25
chubhunter [2.5K]
15c-25
15c=25
your answer is c=13.5
4 0
3 years ago
Seeds are often treated with fungicides to protect them in poor-draining, wet environments. A small-scale trial, involving six t
alukav5142 [94]

Answer:

0.0076 = 0.76% probability that all five plants emerged from treated seeds

Step-by-step explanation:

The plants were chosen without replacement, which means that the hypergeometric distribution is used to solve this question.

Hypergeometric distribution:

The probability of x successes is given by the following formula:

P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}

In which:

x is the number of successes.

N is the size of the population.

n is the size of the sample.

k is the total number of desired outcomes.

Combinations formula:

C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

In this question:

6 + 6 = 12 seeds, which means that N = 12

6 treated, which means that k = 6

Five sprouted, which means that n = 5

What is the probability that all five plants emerged from treated seeds?

This is P(X = 5). So

P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}

P(X = 5) = h(5,12,5,6) = \frac{C_{6,5}*C_{6,0}}{C_{12,5}} = 0.0076

0.0076 = 0.76% probability that all five plants emerged from treated seeds

3 0
3 years ago
HELP PLEASE <br><br> Answer choices <br><br> A). 12<br><br> B). 2<br><br> C). 6<br><br> D). 25/3
I am Lyosha [343]
That is 6 I believe

3 squared equals 9
9*2=18
18/3=6
4 0
3 years ago
If cells are: a1=90, a2=85, a3=80, a4=75, and a5=75. what will be your formula if you are going to get the average?
swat32
The average can be given by the following formula:
 Average = (a1 + a2 + a3 + a4 + a5) / (5).
 Equivalently.
 Average = (ai) / (i).
 Where,
 i = 1,2,3,4, ..., n
 Substituting
 Average = (90 + 85 + 80 + 75 + 75) / (5).
 Average = 81
 answer:
 Average = (a1 + a2 + a3 + a4 + a5) / (5).
 or
 Average = (ai) / (i).
 Where,
 i = 1,2,3,4, ..., n
8 0
3 years ago
An arched drainage culvert can be modelled by the function:
Zanzabum

Substitute 136.5 for y.

136.5=\frac{x(191-x)}{60}

8190=x(191-x)

8190=191x-x^{2}

x^{2} -191x+8190=0

Compare this equation with ax^{2} +bx+c=0

a = 1, b = - 191, c = 8190

x=\frac{-b+\sqrt{b^{2}-4ac } }{2} or

x=\frac{-b-\sqrt{b^{2}-4ac } }{2}

x=\frac{191+\sqrt{191^{2}-4(1)(8190) } }{2} or

x=\frac{191-\sqrt{191^{2}-4(1)(8190) } }{2}

x=\frac{191+\sqrt{36481-32760 } }{2} or

x=\frac{191-\sqrt{36481-32760 } }{2}

x=\frac{191+\sqrt{3721 } }{2} or

x=\frac{191-\sqrt{3721 } }{2}

x=\frac{191+61}{2} or

x=\frac{191-61}{2}

x=\frac{252}{2} or

x=\frac{130}{2}

x = 126 or x = 65

Hence, the points on the curve are (65, 136.5) and (126, 136.5).

The width of the air space is the distance between these points.

Width = \sqrt{(x_{2}- x_{1})^{2} +( y_{2}- y_{1}) ^{2}

= \sqrt{(126- 65)^{2} +(136.5-136.5) ^{2}

= 126 - 65

= 61

Hence, width of the air space is 61m.



5 0
3 years ago
Other questions:
  • joe spends $8 on lunch and $6.50 on dry cleaning. He also buys 2 shiets that cost the same amount. joe spendes a total of $52. w
    15·1 answer
  • Need help again...<br> :(
    6·1 answer
  • 93 is what percent of 60
    8·1 answer
  • Plot the point (-4, -1) and determine which quadrant it lies
    12·1 answer
  • A bag contains 2 RED beads, 7 BLUE beads, and 6 GREEN beads. If a single bead is picked at random, what is the probability that
    12·2 answers
  • Leave your answers as a fraction or improper fraction.
    14·1 answer
  • BRAINLIEST BRAINLIEST <br> please answer thank you
    6·2 answers
  • Lin wants to save 75$ for a trip to the city. If she has saved $37.50 so far, what percentage of her goal has she saved? What pe
    7·2 answers
  • What is the sum of 1+2+.....+50?​
    13·1 answer
  • This is hard i need help
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!