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3 years ago

Which of the following expressions is correctly written in scientific notation?

Mathematics

1 answer:

valentinak56 [21]3 years ago

3 0

Answer: D is correctly written in scientific notation.

Step-by-step explanation:

The base has to be between 1 and 10.

A has a base of 16.4 which is greater than 9.

B is not even in scientific because the base it being raise to an exponent

C has 0.71 as base which is less that.

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3 years ago

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What is the slope of the line that passes through the points (6, -5) and (6, -8)?

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(6,-5) (6,-8)

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3 years ago

Ahmed wants to buy one of two skateboards. One skateboard costs $1 more than the

Papessa [141]

Answer:

1 skateboard will cost $73 and the other will cost $72

Step-by-step explanation:

Skateboard A (Original) = X

Skateboard B (+$1) = X + 1

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2x + 1 - 1 = 145 - 1

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4 0

2 years ago

A cliff diver jumps from a cliff that is 96 feet above the water. His jump can be modeled by a quadratic equation, h= -16t(expon

ladessa [460]

Answer:

The diver will take 2.449 seconds to enter the water.

Step-by-step explanation:

We have been given that quadratic equation for the diver jumps is

$h=-16t^2+96$

We have to find the time taken for the diver to enter the water. When the diver enters the water, the height becomes zero.

$0=-16t^2+96\\\\16t^2=96\\\\t^2=6\\\\t=\sqrt6\\\\t=2.449\text{ seconds}$

Therefore, the diver will take 2.449 seconds to enter the water.

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3 years ago