3 years ago

Tyler is conducting a science experiment. He is observing the effects of

Mathematics

1 answer:

love history [14]3 years ago

4 0

Answer:

Your answer is -25

Step-by-step explanation:

First, you figure out what to do for the equation.

In this case we you would subtract because it says "what is the difference" which means to subtract.

So -55 subtracted by -80 = -25

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7. A model rocket is launched from a roof into a large field. The path of the rocket can be modeled by the

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Answer: 475.59 meters .

Step-by-step explanation:

The correct equation is the following:

$y =-0 .02x^2 +9.5x + 5.6$

For this exercise you need to use the Quadratic formula:

$x = \frac{-b\±\sqrt{b^2-4ac}}{2a}$

In this case you can identify that the values of "a", "b" and "c" are:

$a=-0.02\\\\b=9.5\\\\c=5.6$

Now you must substitute these values into the Quadratic formula and then evaluate. You get:

$x=\frac{-9.5\±\sqrt{(9.5)^2-4(-0.02)(5.6)}}{2(-0.02)}\\\\x_1=475.588\\x_2=-0.588$

Choose the positive one and round it to the nearest hundreth:

$x_1\approx 475.59$

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3 years ago

The surface of a rectangular table has an area of 8 square feet and a perimeter of 12 feet. What are the dimensions of the table

nirvana33 [79]

Answer:

4 ft by 2 ft

Step-by-step explanation:

4*2=8

4+4+2+2=12

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3 years ago

Picking up a hot coal is wich type of heat transfer

NeTakaya

A) conduction. because you are conducting heat from the coal to your hand

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Step-by-step explanation:

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4 years ago

Which is bigger 11/20 or 14/25?

NeX [460]

14/25 is bigger, when you divide these numbers and look for their decimals, you can tell which one is greater

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