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Mathematics

1 answer:

photoshop1234 [79]3 years ago

7 0

Answer:

2.3

Step-by-step explanation:

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When x = 3, y = 4. What is y when x = 12?

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Answer:

A)3

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3 years ago

Cost price of a chair and table is rupee 490. If the cost of the chair is rupee 50 less than the cost of the table, find the cos

densk [106]

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3 years ago

A student fond the slope of a line that passes through the points (-8,-6) and (2,-3) to be 3/10. what mistake did she make?

goldfiish [28.3K]

Simple ....

we know to find slope is (y1-y2)/(x1-x2)

if we plug in what we know......

(-8,-6),(2,-3)

(-6--3)/(-8-2)

it turns into...

(-6++3)/(-8+-2)

(-3)/(-10)= 3/10

Thus, your answer is that she made no mistake. (C)

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3 years ago

For a certain model of car the distance d required to stop the vehicle if it is traveling at v mi/h is given by the formula d =

enyata [817]

Given that <span>For a certain model of car the distance $d$ required to stop the vehicle if it is traveling at $v$ mi/h is given by the formula $d=v+\frac{v^2}{20}, where [tex]d$ is measured in feet.

If Kerry wants her stopping distance not to exceed 75 ft, then the range of speeds (in mi/h) can she travel is obtained as follows:

$v+ \frac{v^2}{20} \leq75 \\ \\ 20v+v^2\leq1,500 \\ \\ v^2+20v+100\leq1,500+100 \\ \\ (v+10)^2\leq1,600 \\ \\ |v+10|\leq\sqrt{1,600} \\ \\ -40\leq v+10\leq40 \\ \\ -40-10\leqv\leq v\leq40-10 \\ \\ -50\leq v\leq30$

Therefore, the range of speed she can travel is $v\leq30\ mi/hr$
</span>

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3 years ago

**PSYCHOLOGY**

iris [78.8K]

Her conception is that the view of the sun is bright, her perception is that the bright sun has a positive impact on her, and her interpretation is that her body doesn't mind the heat yet welcomes it. The answer here is Perception.

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3 years ago

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