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Anvisha [2.4K]
3 years ago
13

-3|2w|=-6 SOLVE THE EQUATION

Mathematics
1 answer:
ElenaW [278]3 years ago
3 0

Answer:

w=-1

Step-by-step explanation:

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Solve: y= 7/3x-3 and y=11
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Answer:

x = 6

Step-by-step explanation:

Given

y = \frac{7}{3} x - 3 and y = 11, thus

\frac{7}{3} x - 3 = 11 ( add 3 to both sides )

\frac{7}{3} x = 14

Multiply both sides by 3 to clear the fraction

7x = 42 ( divide both sides by 7 )

x = 6

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Its a i just took the test

Step-by-step explanation:

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The height of a stuntperson jumping off a building that is 20 m high is modeled by the equation h = 20 – 5t2, where t is the tim
Leno4ka [110]
<h2>Time Interval : 1 sec to 1.414 sec</h2>

Step-by-step explanation:

       The height of the stuntperson jumping off a 20\text{ }m is modelled as h\text{ }=\text{ }20\text{ }-\text{ }5t^{2}. Here t is the time in seconds.

       We have to record the person when he is between the heights 15\text{ }m\text{ and }10\text{ }m from the ground.

       When h\text{ }=\text{ }15,

               15\text{ }=20\text{ }-\text{ }5t^{2}\\5t^{2}\text{ }=\text{ }5\\t^{2}\text{ }=\text{ }1\\t\text{ }=\text{ }1\text{ }sec

       When h\text{ }=\text{ }10,

               10\text{ }=20\text{ }-\text{ }5t^{2}\\5t^{2}\text{ }=\text{ }10\\t^{2}\text{ }=\text{ }2\\t\text{ }=\text{ }\sqrt{2}\text{ }=\text{ }1.414\text{ }sec

       The stuntperson is at height 15\text{ }m at t\text{ }=\text{ }1\text{ }sec, and is at height 10\text{ }m at t\text{ }=\text{ }1.414\text{ }sec.

∴ The camera should film the person for the time interval \textbf{1}\text{ }sec\text{ to }\textbf{1.414}\text{ }sec.

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3 years ago
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Eiko is wearing a magic ring that increases the power of her healing spell by 30%. Without the ring, her
Butoxors [25]

Answer:

The correct answers are B and C.

Step-by-step explanation:

3/10 + 1 represents an extra 30%, plus 100%. The 100% accounts for the original power of the spell. The expression can be simplified as 1.3H, or 130% of H. 130% of H can also be represented as 130/100 H.

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Answer:

85.2

Step-by-step explanation:

first divide 53.25 by 5 to get the per hour amount.

Then times that number by 8.

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