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3 years ago

- 9.9t = - 9.9 solve for t

Mathematics

1 answer:

vampirchik [111]3 years ago

5 0

T=1

Hope that helps bud!

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-1/2

Step-by-step explanation:

the slope of the first line is 2

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3 years ago

-6(a+8)<br> it says to simply the expression

mars1129 [50]

Answer:

-6a-48

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3 years ago

I have a fair six sided dice numbered 4,9,12,16,20 and 24 what is the probability of rolling a multiple of 4

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3 years ago

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megan hughes deposits 2100 in an account that pays simple interest. when she withdraws her money 11 months later, she receives $

USPshnik [31]

Answer:

The rate at which the account pay the deposit is 2 %

Step-by-step explanation:

Given as :

The principal amount deposited in account = $2100

The rate of interest = r % simple interest annually

The time period = 11 months = $\frac{11}{12}$ year

The amount received = $2138.50

Now<u>, From Simple Interest method </u>

Simple Interest = $\dfrac{\textrm Principal\times \textrm rate\times \textrm time}{100}$

Or, Interest = $\dfrac{2100\times r\times \frac{11}{12}}{100}$

Or, Interest = $\frac{21\times r\times 11}{12}$

Or, Interest = 19.25 r

Now, Interest = Amount - Principal

So, 19.25 r = $2138.50 - $2100

Or, 19.25 r = $38.5

∴ r = $\frac{38.5}{19.25}$

I.e r = 2

So, rate of interest = r = 2 %

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4 years ago

Find (f - g)(x)

Sidana [21]

Answer:

Step-by-step explanation:

We have the two functions:

$f(x)=3x^2-2x\text{ and } g(x)=9x^2-x+7\\$

And we want to find:

$(f-g)(x)$

This is equivalent to:

$=f(x)-g(x)$

Hence, by substitution:

$=(3x^2-2x)-(9x^2-x+7)$

Distribute:

$=(3x^2-2x)+(-9x^2+x-7)$

Rearrange:

$=(3x^2-9x^2)+(-2x+x)+(-7)$

Combine like terms:

$=-6x^2-x-7$

Hence, our answer is A.

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3 years ago

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