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3 years ago

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A.)-5(n3 – n2 – 1) + n(n2 – n)B.) (n2 – 1)(n + 2) – n2(n – 3)C.) n2(n – 4) + 5n3 – 6 D.)2n(n2 – 2n – 1) + 3n2 arrange them in in

creasing order based on the coefficient of n2

1 answer:

Alina [70]3 years ago

4 0

The first one is d then b and a and also c

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densk [106]

For this case we have that by definition, a function is of the form:

$y = f (x)$

So, we have the following system of equations:

$y = -6x + 2\\y = -2x + 4$

Equating the equations we have:

$-6x + 2 = -2x + 4$

Adding 2x to both sides of the equation:

$-6x + 2x + 2 = 4\\-4x + 2 = 4$

Subtracting 2 from both sides of the equation:

$-4x = 4-2\\-4x = 2$

Dividing between -4 on both sides of the equation:

$x = \frac {2} {- 4}\\x = - \frac {1} {2}$

Thus, the value of the variable "x" is -0.5.

Answer:

-0.5

6 0

4 years ago

Write an equivalent expression for 8(3+5•)+7•+4 if•

Vadim26 [7]

8 times 3 then 8 times 5 then add the two then write the rest of the expression

8 0

3 years ago

Three is added to a number, and then the sum is multiplied by 4. The result is 16. Find the number.

pentagon [3]

$x-\ number\\\\
4(3+x)=16\\
12+4x=16\ \ \ |Subtract\ 12\\
4x=16-12\\
4x=4\ \ \ |Divide\ by\ 4\\
x=1\\\\ \textbf{Number\ is\ equal\ to\ 1.}$

7 0

3 years ago

Read 2 more answers

Josie had a choice of 3 breads, 4 choices of meat, and 4 choices of cheeses to make a sandwich.

tatyana61 [14]

3*4*4=48
she can make 48 different sandwiches

4 0

3 years ago

Read 2 more answers

SinA=√1-x÷√1+X<br> Find the value of cosA

Irina-Kira [14]

The value of cos A is √(1 + x²)/ (1 - x²) /√1 + x

<h3>Trigonometric ratios</h3>

It is important to note that

sin A = opposite/ hypotenuse

cos A = adjacent/ hypotenuse

Then,

opposite = $\sqrt{1} - x$

Hypotenuse = $\sqrt{1} + x$

Let's find the adjacent side using the Pythagorean theroem

$(\sqrt{1} + x)^2 = (\sqrt{1 -x } )^2 + x^2$

$1 + x^2 = 1 - x^2 + x^2$

$x = \sqrt{\frac{1 + x^2}{1 -x^2} }$

cos A = x/hypotenuse

$cos A = \frac{\sqrt{\frac{1+x^2}{1 -x^2} } }{\sqrt{1} +x}$

cos A = √(1 + x²)/ (1 - x²) /√1 + x

Thus, the value of cos A is √(1 + x²)/ (1 - x²) /√1 + x

Learn more about trigonometric identities here:

brainly.com/question/7331447

#SPJ1

6 0

2 years ago