3 years ago

Which expression is equivalent to s - 0.78s +0.28s? 0.58 1.5s O 1-0.55 s – 0.5

Mathematics

1 answer:

Andrej [43]3 years ago

5 0

Answer:

0.5s

Step-by-step explanation:

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Here’s my dilemma, I can accept a $1000 bill or play a game ten times. For each roll of the single die, I win $500 for rolling 1

Aloiza [94]

Answer:

you should accept the $1,000 bill

Step-by-step explanation:

Given the information:

$500 for rolling 1 or 2
$400 for rolling 3
lose $300 for rolling 4,5,6

P (rolling 1 or 2) = 1/6 + 1/6 = 2/6 = 1/3

P (rolling a 3) = 1/6

P (rolling 4 or 5 or 6) = 3/6 = 1/2

Hence, the expected value for 1 time is:

E = (1/3)*500 + (1/6)*400 - (1/2)*300

E = $166 + $66 - $150

E = $82

Expected value is linear so if you roll the die 10 times, expected value is: 10*82 = $820

The expected value is $82, meaning you should accept the $1,000 bill

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2 years ago

Round 20045 to 4 significant figures.

tresset_1 [31]

Answer:

2005

Step-by-step explanation:

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2 years ago

A train must climb a constant gradient of 5.5m for every 200m on track. Find the angle of incline

Eduardwww [97]

<span>angle = arcsin(5.5/200) = 1.575 degrees</span>

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3 years ago

Read 2 more answers

the total charge for a yearly internet movie rental membership is $231.A registration fee of $15 is paid up front and the rest i

Flura [38]

New members pay a fee of $18 per month.

Step-by-step explanation:

Given,

Yearly movie rental cost = $231

Registration fee = $15

1 year = 12 months

Let,

x be the fee per month.

12x+15=231

$12x=231-15\\12x=216$

Dividing both sides by 12

$\frac{12x}{12}=\frac{216}{12}\\x=18$

New members pay a fee of $18 per month.

Keywords: subtraction, division

Learn more about division at:

#LearnwithBrainly

7 0

2 years ago

Please help me I need the answer

VMariaS [17]

Check the picture below.

well, since the triangle is an isosceles, with twin sides and twin angles at the "base", let's check what the angle at R is, 15(7) - 31 = 74, and her twin sister at T is also 74, that means that the angle at S is 180 - 74 - 74 = 32.

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2 years ago