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aleksandr82 [10.1K]
3 years ago
7

Which number is not written in scientific notation

Mathematics
2 answers:
Mariana [72]3 years ago
5 0

Answer:

D. 15x10^20

Step-by-step explanation:

The rule for scientific notation is that the coefficient has to be between 1 and less than 10. This means there is only one digit in front of the decimal. 15x10^20 should be written as 1.5x10^21 to follow the rule.

Tju [1.3M]3 years ago
3 0

Answer:

Hey there!

e15 times 10^20 isn't written in scientific notation. For a number to be in scientific notation, the leading number must be between 1 and 10.

Let me know if this helps :)

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Janson has quarters and dimes in his pocket. he counted 42 coins that added up to $7.50
vlada-n [284]

Answer:

28 quarters and 5 dimes

7(Q)+5(D)

7(4)+5(10)

28Q      50D          Q=quarters  D=dimes

it would be more efficient to do the substitution method bc its faster and easier

7 0
2 years ago
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19. The bases of a trapezoid are 8 and 22 and the trapezoid's area is 135. Find the height
julia-pushkina [17]

Answer: 9

Step-by-step explanation:

A=(a+b)/2 *h

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135/15= h

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8 0
3 years ago
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Carmen buys 153 shares of Cawh Consolidated Banks, each of which pays a constant yearly dividend of $7.14. After six years, how
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153 x 7.14 = 1092.42
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G(n)=-50-15n(n)=−50−15n, Complete the recursive formula of g(n)
UkoKoshka [18]

Answer:

  g(1) = -65; g(n) = g(n-1) -15

Step-by-step explanation:

Using n = 1, 2, 3, we can find the first three terms of the sequence:

  g(1) = -50 -15 = -65

  g(2) = -50 -15(2) = -80

  g(3) = -50 -15(3) = -95

The first term of the arithmetic sequence is -65, so that is g(1). Each next term is 15 less than the one before, so the recursive formula is ...

  g(n) = g(n-1) -15

The complete recursive function definition requires both parts:

  g(1) = -65

  g(n) = g(n-1) -15

8 0
3 years ago
A. hellen raised 12$ for the food bank last year and she raised 6 times as much money this year how much money did she raise thi
ruslelena [56]

Answer:

A. 72

B. 3

C. 135

Step-by-step explanation:

A. 12 x 6 = 72

B. 15 x 3 = 45 so Nina raise 3x more money than Sandra

C. 45 x 3 = 135

6 0
3 years ago
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