3 years ago

A number between

Mathematics

2 answers:

Dovator [93]3 years ago

8 0

it's 24

Good luck!!!!! (:

umka21 [38]3 years ago

7 0

The answer is 24.........

Rate if thus helps.......

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F (n) = 65 - 100n<br> f (39) =

yan [13]

f(39)=65-100(39)

65-3900

= -3835

6 0

2 years ago

Mark says that 3.002 must be less than 3.0019, since 2 is less than 19. Explain why he is wrong.

erik [133]

Answer:

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4 0

2 years ago

Please give me a step by step explanation of how to solve this question WILL MARK AS BRAINLIEST!

vodomira [7]

Answer:

2261

<h2>Step-by-step explanation:add them up $x_{123}$ </h2>

4 0

2 years ago

Solve for each system of equations by substitution or elimination.

Tems11 [23]

QUESTION 1

The given system of equations are:

$y=x^2+5x+1$

$y=x^2+2x+1$

We equate the two equations to get:

$x^2+5x+1 =x^2+2x+1$

$x^2 - {x}^{2} + 5x - 2x = 1 - 1$

$3x = 0$

$x = 0$

When x=0,

$y=0^2+2(0)+1 = 1$

The solution is (0,1)

QUESTION 2

The given equations are:

$y=x^2-2x - 1$

and

$y= -x^2-2x-1$

We equate both equations to get:

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

Group similar terms,

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

$2 {x}^{2} = 0$

$x = 0$

We put x=0 into any of the equations to find y.

$y= -0^2-2(0)-1 = - 1$

The solution is (0,-1).

QUESTION 3

The given equations are:

$y=x^2+2x+1$

and

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

We equate both equations:

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

Group similar terms:

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

$0 = -2$

This is not true.

Hence the system has no solution.

6 0

3 years ago

How would the expression x^2+27 be rewritten using sum of cubes?

nydimaria [60]

Assuming the square is not a typo, one can write

$x^2+27=(x^{2/3})^3+3^3=(x^{2/3}+3)\bigg((x^{2/3})^2-3x^{2/3}+9\bigg)$

$=(x^{2/3}+3)\bigg(x^{4/3}-3x^{2/3}+9\bigg)$

6 0

3 years ago