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3 years ago

Subtract: 2x2 - 4x - 3 from x2 - 5x - 8.

Mathematics

2 answers:

VladimirAG [237]3 years ago

7 0

X^2 - 5x - 8 - <span>2x^2 + 4x + 3
= -x^2 - x - 5

hope that helps</span>

Archy [21]3 years ago

6 0

(x²-5x-8)-(2x²-4x-3)

> x²-5x-8-2x²+4x+3

> x²-2x²-5x+4x-8+3

>-x²-x-5

Hope This Helps!

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ABC will undergo two transformations to give abc. Which pair of transformations will give a different image of abc if the order

ExtremeBDS [4]

You can consider the triangle (as on in the picture) and apply to it composition of two transformations:
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You can see that results are different.

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3 years ago

How to find the square root of complex numbers?? Find the square root of (6+8i) ??

ivann1987 [24]

Answer:

$2 \sqrt{2} + i \sqrt{2}$

Step-by-step explanation:

The square of a complex number is a complex number. Here, we have:

${(a + bi)}^{2} = 6 + 8i$

${a}^{2} + 2abi - {b}^{2} = 6 + 8i$

We then have this system of equations:

${a}^{2} - {b}^{2} = 6$

$2ab = 8$

Solving this system:

$ab = 4$

$b = \frac{4}{a}$

${a}^{2} - {( \frac{4}{a}) }^{2} = 6$

${a}^{2} - \frac{16}{ {a}^{2} } = 6$

${a}^{4} - 16 = 6{a}^{2}$

${a}^{4} - 6 {a}^{2} - 16 = 0$

$( {a}^{2} - 8)( {a}^{2} + 2) = 0$

${a}^{2} = 8$

$a = 2 \sqrt{2}$

$b = \frac{4}{2 \sqrt{2} } = \sqrt{2}$

6 0

2 years ago

Read 2 more answers

Love u frens :><br> eeeeeeeeeeeeeeeeeeeee

tatuchka [14]

Answer:

12/7

Step-by-step explanation:

1 x 7= 7, then add 5 because of the denominator. 12/7

8 0

3 years ago

Volume of a sphere with a diameter of 8 meters? Use 3.14 for pi.

kvasek [131]

Answer: " 267.95 m³ " .
______________________________________________________
Explanation:
________________________________________________________

V = (4/3) * $\pi$ * r³ ;

Given: diameter, "d" = "8 m" ;

radius, "r" = 8 m / 2 = 4 m "

V = (4/3) * $\pi$ * r³

V = (4/3) * $\pi$ *(4m)³

V = (4/3) * (3.14) * 4³ * m³ ;

V = (4/3) * (3.14) * (4*4*4) * m³ ;

V = (4/3) * (3.14) * (64) * m³ ;

V = 267.9466666666666667 m³ ;

round to: " 267.95 m³ " .
_________________________________________________________

4 0

3 years ago

Square root -9/(3-2i) + (1+5i)

stiv31 [10]

Answer: i 53°17'37

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Step-by-step explanation:

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3 years ago