3 years ago

Help with sentence inequalities? Two times a number x is greater than 3.

Mathematics

1 answer:

kotykmax [81]3 years ago

4 0

Answer:

2*x+3

Step-by-step explanation:

hope that helped.

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Evaluate the permutation P(36,19)=____

kondaur [170]

Easy

nPr= $\frac{n!}{(n-r)!}$
here
36P19= $\frac{36!}{(36-19)!}=$
$\frac{36!}{(17)!}=$
$\frac{36*35*34*33*32*31*30*29*28*27*26*25*24*23*22*21*20*19*18}{1}=$
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4 years ago

Write f(x) = 2x2 – 44x + 185 in vertex form.

forsale [732]

Answer:

Step-by-step explanation:

$f(x)=2x^2-44x+185\\\\=2(x^2-2*11*x)+185\\\\=2(x^2-2*11*x+11^2)+185-2*121\\\\\boxed{f(x)=2(x-11)^2-57}\\\\vertex\ is\ (11,-57)$

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3 years ago

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Simplify the expression. Write the answer using scientific notation. (9x10^2)(2x10^10)

Advocard [28]

Answer:

1.8 x $10^{13}$

Step-by-step explanation:

( 9 x 10²) (2 x $10^{10}$ )

= (9)(2) x $10^{10+2}$

=18 x $10^{12}$

= 1.8 x $10^{13}$

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3 years ago

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Sebastian bought x gallons of gas at a price of $2.91 per gallon at his local gas station. When he paid for the gas, Sebastian a

rjkz [21]

Answer:

Sebastian spent $40.40 at the gas station.

Step-by-step explanation:

First let's find how much the gas cost.

So it's $2.91 a gallon, and Sebastian fills 10 gallons of gas, so we multiply.

10 * 2.91 = $29.10

Then we add on the $11.40 from the granola bars and the box of tissues.

$29.10 + $11.40 = $40.50

So the final price should be $40.40. Sebastian spent $40.40 at the gas station.

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3 years ago

Simplify (-6)×(-6)^2

alexdok [17]

Answer:

-216

(-6)^3

Step-by-step explanation:

-6 * (-6*-6)

-6 * 36

-216

-6 * -6 *-6

This is -6 multiplied together 3 times

(-6) ^3

8 0

3 years ago