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4 years ago

Express the product of 2xsquared+6x-8 and x+3 in standard form

Mathematics

1 answer:

postnew [5]4 years ago

4 0

Answer:

2x^3+12x^2+10x-24

Step-by-step explanation:

(2x^2+6x-8)(x+3)

2x^3+6x^2-8x+6x^2+18x-24

2x^3+6x^2+6x^2-8x+18x-24

2x^3+12x^2+10x-24

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If I have 40 pieces of candy and I sell them all for $20 how much would each piece of candy be worth

Hatshy [7]

Answer:

2cents

Step-by-step explanation:

40/20=2

5 0

4 years ago

Evaluate 2/3 + 1/3 + 1/6 + … THIS IS CONTINUOUS. It is NOT as simple as 2/3 + 1/3 + 1/6.

Vlada [557]

$a=\dfrac{2}{3}\\r=\dfrac{1}{2}$

The sum exists if $|r|$

$\left|\dfrac{1}{2}\right|$ therefore the sum exists

$\displaystyle\\\sum_{k=0}^{\infty}ar^k=\dfrac{a}{1-r}$

$\dfrac{2}{3}+\dfrac{1}{3}+\dfrac{1}{6}+\ldots=\dfrac{\dfrac{2}{3}}{1-\dfrac{1}{2}}=\dfrac{\dfrac{2}{3}}{\dfrac{1}{2}}=\dfrac{2}{3}\cdot 2=\dfrac{4}{3}$

5 0

3 years ago

0.92857142857 as a fraction

klio [65]

Answer:

92857142857/100000000000

Step-by-step explanation:

There are 11 numbers so add 11 zeros

6 0

3 years ago

Read 2 more answers

2x+3y=4<br><br>This is not slope btw

viktelen [127]

When x=-4:
2(-4)+3y=4
3y=4+8
3y=12
y=4
So the ordered pair is (-4,4), I think

3 0

4 years ago

Read 2 more answers

Logan’s town is building a volleyball court based on a scale drawing that is 20 centimeters by 40 centimeters and uses the scale

natita [175]

Answer:

1.62m^2

Step-by-step explanation:

From the problem statement, the scale of the drawing is

1cm:45cm (meaning that 1cm on the drawing represent 45cm in reality ofr actual)

first,let us convert 20cm to the actual drawing

20cm in actual will give 20*45=900cm

to meters =900/100= 0.9m

Secondly let us convert 40cm to the actual drawing

20cm in actual will give 40*45=1800cm

to meters =1800/1000= 1.8m

Now we can calculate the actual area in meters we have

area= 0.9*1.8

area= 1.62m^2

6 0

4 years ago