3 years ago

How do I work this out

Mathematics

1 answer:

vazorg [7]3 years ago

7 0

Check the picture below.

make sure your calculator is in Degree mode.

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Multiply (2x-5)(3x^2-4x+2)

fgiga [73]

Answer:

$\large\boxed{(2x-5)(3x^2-4x+2)=6x^3-23x^2+24x-10}$

Step-by-step explanation:

$\text{Use FOIL:}\ (a+b)(c+d)=ac+ad+bc+bd\\\\(2x-5)(3x^2-4x+2)\\\\=(2x)(3x^2)+(2x)(-4x)+(2x)(2)+(-5)(3x^2)+(-5)(-4x)+(-5)(2)\\\\=6x^3-8x^2+4x-15x^2+20x-10\\\\\text{combine like terms}\\\\=6x^3+(-8x^2-15x^2)+(4x+20x)-10\\\\=6x^3-23x^2+24x-10$

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3 years ago

If i were to divide 15.34 by 1.64 what would it be

vazorg [7]

Answer:

9.35975609756

Step-by-step explanation:

Its about this I just put it into a calculator

3 0

3 years ago

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Fill in the table to convert kilometers to meters

Phantasy [73]

Step-by-step explanation:

Where is the table

1 km = 1000m

4 0

3 years ago

Reduce to simplest form. -\dfrac{1}{3}-\left(-\dfrac{3}{5}\right)=− 3 1 −(− 5 3 )=minus, start fraction, 1, divided by, 3, e

nevsk [136]

Answer:

-1/3 - (-3/5) = 4/15

Step-by-step explanation:

Reduce to simplest form

-1/3 - (-3/5)

= -1/3 + 3/5

Find the Lowest Common Multiple of 3 and 5

Lowest Common Multiple of 3and 5 is 15

Use the LCM to Simplify

= {(-5*1)+(3*3)} / 15

= (-5+9) / 15

= 4/15

Therefore,

-1/3 - (-3/5) = 4/15

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3 years ago

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The scale of a map says that 6 cm represents 15 km.

atroni [7]

37.5 km is equal to 15 cm

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3 years ago