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3 years ago

Help me please thanks

Mathematics

1 answer:

Alborosie3 years ago

8 0

Ryan makes £528 of profit

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Please this is a test

amid [387]

5

you use the formula a^2+b^2=c^2

a=3, b=4

3*3=9 and 4*4=16

16+9=25

square root of 25 is 5.

5 is the answer

7 0

2 years ago

Read 2 more answers

Write an equation of the line that passes through a pair of points (-5, -2) (3, -1)

Bess [88]

Answer:

y = 0.125x + -1.375

Step-by-step explanation:

You can try and use desmos.com to help you graph these 2 points. My algebra teacher recommended it if you don't have a physical graphing calculator!

5 0

3 years ago

Working as a team 8 mathletes can solve 20 problems in ten minutes. At this same rate how many mathletes are needed in order to

emmainna [20.7K]

7 is the right answer(please rate 5.0 stars so i can help other people out thanks)

8 0

3 years ago

Read 2 more answers

According to The Wedding Report, Inc., the mean cost for a wedding in the United States is $28732 (as of November 2008). Suppose

Stella [2.4K]

Answer:

Following are the solution to the given points:

Step-by-step explanation:

$X = \text{cost of wedding}\sim \text{Normal}\ (\mu = 28732, \sigma= 1500)\\\\$

For point a:

$Probability\ = 0.00000359\\\\ \text{(Using Excel function:} =NORMDIST(22000,28732,1500,1)).$

For point b:

$Probability \ = 0.014678\\\\\text{(Using Excel function:} =1-NORMDIST(32000,28732,1500,1))\\\\$

For point c:

$Probability\ = 0.794614436 \\\\$

$\text{(Using Excel function:} \\=NORMDIST (30000,28732,1500,1)-NORMDIST(25000,28732,1500,1))\\\\$

For point d:

$Q_1 = 27720.26537 \\\\\text{(Using Excel function:} =NORMINV(0.25,28732,1500)) \\\\Q_3 = 29743.73463 \\\\\text{(Using Excel function:} =NORMINV(0.75,28732,1500)).$

For point e:

$IQR = Q_3 - Q_1 = 29743.73463 - 27720.26537 = 2023.469251.$

For point f:

$Top\ 10\% = 30654.32735 \\\\\text{(Using Excel function:} =NORMINV(0.9,28732,1500)).$

5 0

3 years ago

Can someone please explain this to me

ki77a [65]

Answer:

What part do you need explained?

Step-by-step explanation:

7 0

3 years ago