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RUDIKE [14]
3 years ago
5

What is 128.439 rounded to the nearest tenth??

Mathematics
1 answer:
irga5000 [103]3 years ago
6 0

Answer:

the answer is 128.4

Step-by-step explanation:

To round up a number to the nearest tenth if the hundredth is more than or 5 you add 1 to the tenth but if it less than 5 you remove the other numbers and leave the number like that which will give you 128.4.

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A dolphin jumped up out of the water and back into the water in a parabolic path. (H) height (t) seconds . H=-8(t-0.5)^2+2 . How
tigry1 [53]

Answer:

4 seconds

Step-by-step explanation:

using the vertex formula of a quadratic,

a(x-h)^{2} + k, where (h,k) is the vertex

h = -8(t-0.5)^{2}+2    h is height and t is time in seconds

the vertex (maximum height) of the dolphin is (h,k) or (0.5, 2)  

Height of 1/2

time of 2 seconds

it will take 2 additional seconds to reach the water again.

this can also be solved using quadratic equation, but since it was already set up in vertex form, i'd use that.

4 0
2 years ago
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5 0
3 years ago
Simplify the expression - 1/2(5/6+1/3)
mel-nik [20]

Answer:

- 7/12

Step-by-step explanation:

- 1/2 ( 5/6 + 1/3 )

- 1/2 ( 5/6 + 2/6)

- 1/2 ( 7/6 )

- 7/12 or - 0.58

8 0
2 years ago
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Vlad [161]
5.95 + 2.95 = 8.9
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8 0
3 years ago
Read 2 more answers
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A, C, and D... a polygon simply has all rigid corners and flat edges
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3 years ago
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