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Verizon [17]
3 years ago
13

A heart beat takes 0.8 second ,how many seconds is this writtin as a fraction

Mathematics
2 answers:
NeX [460]3 years ago
5 0
The answer to your Question is 8/10 but if you simplify it the answer is 4/5.

alina1380 [7]3 years ago
5 0

Answer:

\frac{4}{5} seconds.

Step-by-step explanation:

We have been given that hear beat takes 0.8 second.

We have to convert it in fraction form

We can write 0.8 in fraction as

\frac{0.8}{1}

Multiply numerator and denominator by 10

\frac{0.8\times10}{1\times10}

On simplifying,

\frac{8}{10}

Write in simplest form

\frac{4}{5}

Therefore, the heart takes \frac{4}{5} seconds.

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Using the equation 4x^3-6x^2-144x+8, find the function values f(-3) and f(-4) at the interval {-4,5}
Leto [7]

Answer: f(-3) = 278, f(-4) = 232

Step-by-step explanation:

f(x) = 4x³ - 6x² - 144x + 8

f(-3) = 4(-3)³ - 6(-3)² - 144(-3) + 8

f(-3) = 4(-27) - 6(9) - 144(-3) + 8

f(-3) = 278

f(-4) = 4(-4)³ - 6(-4)² - 144(-4) + 8

f(-4) = 4(-64) - 6(16) - 144(-4) + 8

f(-4) = 232

7 0
3 years ago
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goldenfox [79]

Answer:

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Step-by-step explanation:

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3 0
3 years ago
40 POINTS is (4,7) a solution of equations? Explain your answer 2x+4y=36 3x-4y=-6
dsp73
<span>2x + 4y = 36
3x - 4y = -6
--------------add
5x = 30 
  x = 6

</span>2x+4y=36 
2(6)+4y=36 
12 + 4y = 36
4y = 24
  y = 6

answer
<span>(6, 6) is a solution of equations
</span><span>(4,7) is NOT a solution of equations</span>
6 0
3 years ago
Read 2 more answers
The radius of a solid hemisphere is 2r. Find its total surface area
Musya8 [376]

Answer:

Radius= 2r

Step-by-step explanation:

Surface area of hemisphere

=2 x 22/7 x (2r)^2

=44/7 x 4 r^2

=174/7 r^2

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5 0
3 years ago
What are the solutions to this system of equations?
saveliy_v [14]

Answer:

A

Step-by-step explanation:

The solution is at the points of intersections of the graphs

The graphs intersect at (- 3, 0 ) and (2, 5 )  , then

solutions are (- 3, 0 ) and (2, 5 )

4 0
2 years ago
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