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Serggg [28]
3 years ago
7

I give 20! Help pleasee

Mathematics
1 answer:
Alexeev081 [22]3 years ago
3 0

Answer:

29cm

Step-by-step explanation:

just add them all up

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In a lab, a substance was cooked by 42 C over a period of 7 hours at a constant rate. What was the change in temperature each ho
Mekhanik [1.2K]

Given that we have the change in temperature over 7 hours and we are looking for the change over 1 hour, we can divide the total change in temperature by 7. Thus, the change in temperature would be \frac{42}{7} C^{\circ}.


Additionally, this can be solved by equations:

\dfrac{42 \,\textrm{C}^{\circ}}{7 \,\textrm{hours}} = \dfrac{x \,\textrm{C}^{\circ}}{1 \,\textrm{hour}}

1 \,\textrm{hour} \cdot \dfrac{42 \,\textrm{C}^{\circ}}{7 \,\textrm{hours}} = x \,\textrm{C}^{\circ}

\dfrac{42}{7} \,\textrm{C}^{\circ} = x \,\textrm{C}^{\circ}

\dfrac{42}{7} = x


By using two different methods, we can determine that the change each hour was equal to 42/7 C° per hour.

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The point of intersection is (2,6).
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Greeley [361]
If the question is 6,372= 35x and you were solving for x the answer would be found by dividing 6372 by 35. this would leave you with 182.1=x
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Find the z value such that 39% of the standard normal curve lies between −z and z.
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Use symmetry and find z so that probability is:
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From the z-table:
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Read 2 more answers
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Answer:

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Step-by-step explanation:

Given the ratio

2 : \frac{9}{10}

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= 20 : 9

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