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2 years ago

What is 7500 written in scientific notation

Mathematics

2 answers:

LenKa [72]2 years ago

5 0

Answer:

It is written as 7.5 x 103 in scientific notation.

Step-by-step explanation:

hjlf2 years ago

3 0

7.5 x 103 is the scientific notation of 7500

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Matilda measures the perimeter of her bedroom to determine how many feet of border she needs to go around the tops of the walls.

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The answer is most likely a because if you calculate its better

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2 years ago

Delta Airlines quotes a flight time of 2 hours for its flights from Cincinnati to Tampa, meaning that an on-time flight would ar

ddd [48]

Answer:

a) Attached

b) P=0.60

c) P=0.80

d) The expected flight time is E(t)=122.5

Step-by-step explanation:

The distribution is uniform between 1 hour and 50 minutes (110 min) and 135 min.

The height of the probability function will be:

$h=\frac{1}{Max-Min}=\frac{1}{135-110} =\frac{1}{25}$

Then the probability distribution can be defined as:

$f(t)=\frac{1}{25}=0.04 \,\,\,\,\\\\t\in[110,135]$

b) No more than 5 minutes late means the flight time is 125 or less.

The probability of having a flight time of 125 or less is P=0.60:

$F(T$

c) More than 10 minutes late means 130 minutes or more

The probability of having a flight time of 130 or more is P=0.80:

$F(T>t)=1-0.04(t-110)\\\\F(T>130)=1-0.04*(130-110)=1-0.04*20=1-0.8=0.2$

d) The expected flight time is E(t)=122.5

$E(t)=\frac{1}{2}(max+min)= \frac{1}{2}(135+110)=\frac{1}{2}*245=122.5$

6 0

2 years ago

What is 3x+4x-7=8-3x+11 need step by step explanation

Nadya [2.5K]

Answer:

exact form: 13/5

Decimal form: 2.6

x= 2 3/5

Step-by-step explanation:

3x+4x-7=8-3x+11

7x-7=8-3+11

7x-19-3x

7x-7 + 7 =-3x+19+7

7x=-3+26

10x=26

x= 13/5

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2 years ago

Solve 2x + 2 > 10 A. x<6 B. x>6 C. x>4 D. x<4

melamori03 [73]

The answer is c) x>4

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3 years ago

The weight of each cookie in a batch of a certain type of commercially produced cookie follows an approximately normal distribut

melisa1 [442]

Answer:

Around 34.14% of the cookies are between 11.32 and 11.35 grams.

Step-by-step explanation:

In a normal distribution around 68.28% of the values are around minus one to one standard deviation. In this case we want to know the percentage of values that are between zero and one standard deviation, therefore the percentage of values that are in that range is given by 68.28% / 2 , which is equal to 34.14%.

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2 years ago