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3 years ago

Find the sum or difference of 2/3 + 5/6

Mathematics

1 answer:

umka21 [38]3 years ago

8 0

Answer:

The sum would be

$\frac{3}{2}$

The difference would be

$\frac{2}{3} - \frac{5}{6} = - \frac{1}{6} \\ \\ or \\ \\ \frac{5}{6} - \frac{2}{3} = \frac{1}{6}$

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Write a multiplication problem in which the product is between 0.05 and 0.75

ladessa [460]

0.3*0.9=0.27........

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3 years ago

Find all the zeros of 2x4+x3-14x2-19x-6 two of its zeros are -2 and -1

GalinKa [24]

Answer:

$-2,\ -1,\ -\dfrac{1}{2},\ 3.$

Step-by-step explanation:

Consider polynomial $2x^4+x^3-14x^2-19x-6.$

If x=-2 is its zero, then you can divide the polynomial $2x^4+x^3-14x^2-19x-6$ by $x+2$ and get

$2x^4+x^3-14x^2-19x-6=(x+2)(2x^3-3x^2-8x-3).$

If x=-1, then the polynomial $2x^4+x^3-14x^2-19x-6$ can be rewritten as

$2x^4+x^3-14x^2-19x-6=(x+2)(x+1)(2x^2-5x-3).$

The quadratic polynomial has roots

$x_{1,2}=\dfrac{-(-5)\pm\sqrt{(-5)^2-4\cdot2\cdot(-3)}}{2\cdot 2}=\dfrac{5\pm \sqrt{25+24}}{4}=\dfrac{5\pm \sqrt{49}}{4}=3,-\dfrac{1}{2}.$

Then the polynomial $2x^4+x^3-14x^2-19x-6$ has zeros $-2,\ -1,\ -\dfrac{1}{2},\ 3.$

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3 years ago

Which shape is used to draw a plane on paper in geometry? Triangles Quadrilaterals Lines Circles Points

Katyanochek1 [597]

Answer:

Answer is 'Lines'

Step-by-step explanation:

We use the lines to draw plane on paper.

For example, to draw three dimensional cube , we use lines.

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3 years ago

Solve for x 10-4x=-9

Aleksandr-060686 [28]

Answer:

x = 4.75 or 19/4 or 4 and 3/4

Step-by-step explanation:

10 - 4x = -9

-10 -10

-4x = -19

---- -----

-4 -4

x = 4.75 or 19/4 or 4 and 3/4

4 0

3 years ago

Read 2 more answers

Write down the first five terms of the sequence start at 26 and subtract 3 B start at -3 and add 10

MissTica

Step-by-step explanation:

Sequence 1:

term1=26

term2=26-3=23

term3=23-3=20

term4=20-3=17

term5=17-3=14

sequence2:

term1=-3

term2=-3+10=7

term3=7+10=17

term4=17+10=27

term5=27+10=37

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3 years ago

Find the sum or difference of 2/3 + 5/6​

Find the sum or difference of 2/3 + 5/6