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
never [62]
3 years ago
14

Rewa Delta Union RugbyCEOhas become concerned about the slow pace of the rugby gamesplayed inthe current union rugby, fearing th

at it will lower the spectator attendance. The CEOmeets with the union rugbymanagers and refereesanddiscusses guidelines for speeding upand makingthe gamesmore interesting and lively. Before the meeting, the mean duration of the15-sided rugbygame timewas 3 hours, 5 minutes, that is, 185 minutes.This includes all the breaks and injury times during the game. A random sample of 36 of the 15-sided rugbygames after themeeting showed a mean of 179 minutes with a standard deviation of 12 minutes.Testing at the 1% significance level, can you concludethat the mean duration of 15-sided union rugbygames has decreased after the meeting?

Mathematics
1 answer:
Alex Ar [27]3 years ago
8 0

Answer:

Check the explanation

Step-by-step explanation:

Kindly check the attached image below to see the step by step explanation to the question above.

You might be interested in
Which statement best describes the association between variable X and variable Y?
Serjik [45]

Not all heroes wear capes. Anyways thank you!

8 0
3 years ago
Read 2 more answers
If the ratio is a:b=7:4 b:c=2:5 work out a:c=?
frozen [14]

Step-by-step explanation:

a:b=7:4 b:c=2:5

a:c = 7:5

6 0
2 years ago
Help me pls! I have to get his done.<br>Factorise this!<br>2x^2+5x+3​
MArishka [77]

Hello there!☺

Answer:\boxed{(2x+3)(x+1)}

Explanation:

2x^2+5x+3 Factorized

To factor 2x^2+5x+3, we will have to do it by grouping.

2x^2+5x+3\\(2x+3)(x+1)

(2x+3)(x+1) is your answer.

Hope this helps!☺

8 0
3 years ago
140% out of what gives 56
Verizon [17]


140 / 100 * X = 56

X = 56 * 100 / 140 = 5600 / 140 = 40

4 0
3 years ago
Read 2 more answers
Which of the following applies the law of cosines correctly and could be solved to find m∠E? ANSWERS: A) cos E = 312 + 392 – 2(3
defon

This question is incomplete because the options were not properly written.

Complete Question

Which of the following applies the law of cosines correctly and could be solved to find m∠E? ANSWERS:

A) cos E = 31²+ 39² – 2(31)(39)

C) 56² = 39² – 2(39) ⋅ cos E

D) 56² = 31² + 39² – 2(31)(39) ⋅ cos E

Answer:

D) 56² = 31² + 39² – 2(31)(39) ⋅ cos E

Step-by-step explanation:

From the above diagram, we see are told to apply the law of cosines to solve for m∠E i.e Angle E

The formula for the Law of Cosines is given as:

c² = a² + b² − 2ab cos(C)

Because we have sides d , e and f and we are the look for m∠E the law of cosines would be:

e² = d² + f² - 2df cos (E)

e = 56

d = 39

f = 31

56² = 39² + 31² - (2 × 39 × 31) × cos E

Therefore, from the above calculation and step by step calculation, the option that applies the law of cosines correctly and could be solved to find m∠E

Is option D: 56² = 31² + 39² – 2(31)(39) ⋅ cos E

8 0
3 years ago
Other questions:
  • Which is the better buy? circle it<br> $5.00 for 4 mangoes<br> $6.00 for 5 mangoes
    11·2 answers
  • Find the missing endpoint if s is the midpoint of rt r(-9,4) and s(2,-1) ; find T
    10·2 answers
  • What is the image of (4,−1) after a reflection over the line y=x?
    5·1 answer
  • Help me with this pls like omg soooo stressful
    14·2 answers
  • Help me please whats 93 divided by 29 to the power of 3 and multiplied by 283
    8·2 answers
  • How many gallons of pure water should be evaporated from 160 gallons of a solution containing 12% salt
    10·2 answers
  • HELPPPPPPP :)))))))))
    6·2 answers
  • Help please ill give barinliest
    8·2 answers
  • A cube has a volume of 64. What is the length of one side of the cube?
    5·1 answer
  • Please do 25 and 26 or atleast one
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!