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SVETLANKA909090 [29]
3 years ago
9

Which of the following expressions is written in scientific notation?

Mathematics
2 answers:
balu736 [363]3 years ago
6 0

Lesson 2: Scientific Notation quick check

1. D) 4.22x10^-3

2. A) 7.08x10^-8

3. A) 6.1x10^-7

4. D) 1.25x10^-4

5.C) Doubling n results in doubling the value of the expression.

6. B) 2.45x10^5

7.A) 3x10^3

Please use this for double checking your answers!

Afina-wow [57]3 years ago
5 0
a\cdot10^n\ is\ scientific\ notation\ if\ a\in\left 10)\\\\b)\ 0.09\cdot10^7-NO-(0.0910)\\\\d)\ 4.22\cdot10^{-3}-YES
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jek_recluse [69]

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3 years ago
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Complete the table for Jeff hike. ​
VikaD [51]

It would take  1/2 hour to get 3/4 mile.

3/4 of a hour to get 1 mile.

I think it would take 1 hour to get 1 1/4 miles

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5 0
3 years ago
X 5 X6 7 8 A garden table and a bench cost $659 combined. The garden table costs $91 less than the bench. What is the cost of th
Greeley [361]

Answer:

The bench was $375 and the garden table was $284.

Step-by-step explanation:

Let x be the value of the bench, if the table is 91 less than the value of the bench then the equation can be:

x + x-91 = 659

2x -91 = 659

Add 91 to both sides of the equation to isolate the 2x:

2x - 91 + 91 = 659 + 91

2x = 750

Divide both sides by 2 to get 1x:

2x ÷ 2 = 750 ÷ 2

x = 375

This means the bench was $375 and the garden table was $284.

Hope this helps!

8 0
3 years ago
Write the equation that shows the relationship in the table
V125BC [204]

Answer:

in steps

Step-by-step explanation:

upper: a₁ = 50

           t = a₁ - s

lower: a₁ = 1

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3 0
3 years ago
What is the answer to 2/3^5 divided by 2/3^1
lorasvet [3.4K]

Use the rules of indices

When they are dividing we subtract the exponents provided the bases are the same.

Since the bases are the same,

(2/3)^5 ÷ (2/3)¹

Will be

(2/3)^5-1

= (2/3)⁴

= 16/81

Hope this helps.

8 0
4 years ago
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