2 years ago

70 points- help ASAP, please.

Mathematics

1 answer:

poizon [28]2 years ago

5 0

Answer:

1) a) yes

b) no

c) a² - 39

(a)² - (sqrt(39))²

(a - sqrt(39))(a + sqrt(39))

This quadratic can be split into real factors, but not rational

sqrt(39) is a real number, but not rational

2) real

You might be interested in

Determine the fees: 175 transactions with a $2.75 fee per transaction

nignag [31]

What am i supposed to do?

5 0

2 years ago

Read 2 more answers

Two lines segment that both have a midpoint at point M

AVprozaik [17]

Answer:

No se

Step-by-step explanation:

5 0

3 years ago

Given 2 lines cut by a transversal, what would the m<7 have to be if m <4=85 for the lines to be parallel and what is the

nlexa [21]

Answer:

85º

Step-by-step explanation:

<7=<4 since we know the lines are parallel, and intersected at the same angle

Therefore, <7=85º.

8 0

2 years ago

These figures are congruent. What is the measurement? pic below

larisa [96]

Answer:

i dont know

Step-by-step explanation:

7 0

2 years ago

Use the x-intercept method to find all real solutions of the equation.<br> x^3-8x^2+9x+18=0

meriva

Answer:

a. $x=-1,3,\:or\:6$

Step-by-step explanation:

The given equation is;

$x^3-8x^2+9x+18=0$

To solve by the x-intercept method we need to graph the corresponding function using a graphing calculator or software.

The corresponding function is

$f(x)=x^3-8x^2+9x+18$

The solution to $x^3-8x^2+9x+18=0$ is where the graph touches the x-axis.

We can see from the graph that; the x-intercepts are;

(-1,0),(3,0) and (6,0).

Therefore the real solutions are:

$x=-1,3,\:or\:6$

8 0

3 years ago

Read 2 more answers