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Anika [276]
3 years ago
12

Write 675,000,000 in scientific notation.

Mathematics
1 answer:
Lostsunrise [7]3 years ago
7 0

Answer:

= 6.75 × 10^8

Step-by-step explanation:

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number of bald eagles in a country a discrete random​ variable, a continuous random​ variable, or not a random​ variable?
kykrilka [37]

Answer:

Discrete random variable.

Step-by-step explanation:

Discrete variable:

Countable numbers(0,1,2,3,...)

Continuous variable:

Can assume decimal values, such as 0.5, 2.5,...

Number of bald eagles:

Number of bald eagles is a countable value, either there a 0, 100, 1000,... so it is a discrete random variable.

7 0
2 years ago
Simplify (-8z+4) + (7z-7)
Karo-lina-s [1.5K]

Answer:

1. -1z-3

2. 4x+2

3. -y+11

4. 7a-22

Step-by-step explanation:

Not too sure about the last one

5 0
2 years ago
Jessica is hiring a plumber to remodel her bathroom. She knows that this job will take many hours to complete, so she wants to f
Eddi Din [679]

Answer:

It doesn't make sense ....

Step-by-step explanation:

180 divided by 2=90

400 divided by 7=57

220 divided by 4=55

280 divided by 3.5=80

370 divided by 5.5 =67

None of it is under 50  per hour....sorry

6 0
3 years ago
Read 2 more answers
John left the museum and drove south at a rate of 55 mph. Sally left four hours later driving 10 mph faster than John in an effo
Leona [35]

Answer:

22 hours (B)

Step-by-step explanation:

John's velocity = 55mph

Sally's velocity = 65mph

John's time taken = x

Sally's time taken = x - 4

since they must cover the same distance.

and, distance = vel × time

Sally's vel × time = John's vel × time

55x = 65(x-4)

55x = 65x - 220

-10x = -220

x = 22 hours.

Therefore, Sally catches up after 22 hours

5 0
2 years ago
Help me now!! 16 points!!
stellarik [79]

Answer:

it's the fourth one

Step-by-step explanation:

Solve all the problems using exponent rules and the last one equals 632

6 0
2 years ago
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