Determine which representation corresponds to a decreasing speed with an increasing time

Mathematics

1 answer:

TEA [102]3 years ago

3 0

The answer is here!!!!

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I'm really not sure how to go about solving this algebraic equation, please help! .513 = (2x)^2 / (.05-x)

LiRa [457]

Let's set it up like this:
$0.513=\frac{\left(2x\right)^2}{\left(0.05-x\right)}$
Multiply both sides by $0.05-x$
$0.513\left(0.05-x\right)=\frac{\left(2x\right)^2}{0.05-x}\left(0.05-x\right)$
$0.513\left(0.05-x\right)=4x^2$
We are then going to use the distributive property. Since we also know that the opposite of an number that is squared is the square root, we can also apply that. We would be left with something like this:
$x=-\frac{0.513+\sqrt{0.673569}}{8},\:x=\frac{\sqrt{0.673569}-0.513}{8}$
The variable $x$ can be both positive or negative.
We have found successfully our answer.

Let me know if you have any questions regarding this problem!
Thanks!
-TetraFish<span />

4 0

3 years ago

Express your answer as a polynomial in standard form.

Natasha2012 [34]

Answer:

fog(x)= -4x+11

Step-by-step explanation:

Here,

f(x) = 2x - 3

g(x) = 2x - 4x +7 = -2x+7

fog(x)= f(-2x+7)

= 2(-2x+7)-3

= -4x+14-3

= -4x+11

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3 years ago

tossing a number cube numbered from 1 to 6 and getting an Evan number that is greater than of equal to 2

photoshop1234 [79]

Even numbers on die: 2,4,6
odd numbers on die: 1,3,5
3+3=6 -> 6 numbers in total
3/6 chance because there are 3 even numbers. This would round to 1/2, so 1/2 a chance the die will roll an even number.

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3 years ago

How do I solve circumference and areas of circles?

vaieri [72.5K]

Radius squared times pie
and diameter squared times pie

4 0

3 years ago

Read 2 more answers

Write a division expression with a quotient of 20^{5}

ivolga24 [154]

Answer:

3200000