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lisabon 2012 [21]
3 years ago
14

Please help, legitimate answers only or reported

Mathematics
1 answer:
Doss [256]3 years ago
8 0

question 9

a) 2 x 3 = 6m^2

b) diameter = 2m and radius = 1m

c) πr^2 is the equation, so 3.14 x 1^2 = 3.14m^2

and the semi circle is half of that, 1.57m^2

d) 6 + 1.57 = 7.57m^7

question 10

30 x 70 = 2,100m^2

πr^2 so 3.14 x 15^2 = 706.5m^2

2,100 + 706.5 = 2,806.5m^2

i hope this is correct :D

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I don’t know how to do this
Jet001 [13]

Use proportions because we know that the triangles are similar.

\frac{20}{28}=\frac{5}{x}

Cross multiply.

20x=28×5

x=7

answer: 7

6 0
3 years ago
Whats 30 times 30 plus 45 minus 456
aleksandr82 [10.1K]
30 times 30 plus 45 minus 456 is 489
4 0
3 years ago
Read 2 more answers
Barry's final score is 45 which player had the greater final score?
natali 33 [55]

The player with the greater final score is of:

Barry.

<h3>How to obtain which player had the greater final score?</h3>

Barry's final score is given as follows:

45.

Then we have to obtain Lee's score, from the description given in the missing information section.

Lee's scored is obtained as follows:

  • Starts at -350.
  • Answers a 275-point question correctly, hence - 350 + 275 = -75.
  • Answers a 70 - point question correctly, hence -75 + 70 = -5.
  • Answers a 50 - point question incorrectly, hence: -5 - 50 = -55.

Thus Lee's final score is given as follows:

-55.

The classifications of the final scores according to the signals are given as follows:

  • Barry: positive score.
  • Lee: negative score.

A positive score will always be greater than a negative score, hence Barry had the greater final score.

<h3>Missing information</h3>

Lee and Barry play a trivia game in which questions are worth different numbers of points. If a question is answered correctly, a player earns points. If a question is answered incorrectly, the player loses points. Lee currently has -350 points.

a. Before the game ends, Lee answers a 275 -point question correctly, a 70 -point question correctly, and a 50 -polnt question incorrectly. Write and find the value of an expression to find Lee's final score.

b. Barry's final score is 45. Which player had the greater final score?

More can be learned about addition of measures at brainly.com/question/24342899

#SPJ1

5 0
1 year ago
What is the greatest common factor of 12 and 90?
dsp73
The answer is 6. Hopefully this helped!!
6 0
3 years ago
The long jump distances of four students are listed in the table below. How much farther
Papessa [141]
I can’t answer this with out the distance they jumped.
7 0
4 years ago
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