All categories

3 years ago

What are the solutions of this quadratic equation? x2 − 10x = -34

2 answers:

7 0

Here it is, step by step:

x^2 - 10x = -34
x^2 - 10x + 34 = 0
We cannot easily factor anything, so we resort to the quadratic equation. The work is attached as an image.

yKpoI14uk [10]3 years ago

7 0

Answer:

x=5+3i or x=5-3i

Step-by-step explanation:

You might be interested in

Factor the following 3x + 66y

miv72 [106K]

Answer:

3(x+22y)

Step-by-step explanation:

Because three can be taken from both of them

8 0

3 years ago

An express train travels 80km/h from Ironton to Wildwood. A local train, traveling at 48km/h, takes 2 hours longer for the same

masha68 [24]

Answer:

They are 240 kilometers apart.

Step-by-step explanation:

This question can be solved using the following relation:

$v = \frac{d}{t}$

In which v is the velocity, d is the distance and t is the time.

An express train travels 80km/h from Ironton to Wildwood.

Here we have $v = 80, t = x$ . So

$v = \frac{d}{t}$

$80 = \frac{d}{x}$

$d = 80x$

A local train, traveling at 48km/h, takes 2 hours longer for the same trip.

This means that when $v = 48, t = x + 2[tex]. So[tex]v = \frac{d}{t}$

$48 = \frac{d}{x+2}$

Since $d = 80x$

$48 = \frac{80x}{x+2}$

Applying cross multiplication

$80x = 48(x + 2)$

$80x = 48x + 96$

$32x = 96$

$x = \frac{96}{32}$

$x = 3$

So the distance is:

$d = 80x = 80*3 = 240$

They are 240 kilometers apart.

3 0

2 years ago

if a scatter plot has no association then... A.) it has no ordered psirs B.) its ordered pairs have no predictable pattern C.) i

musickatia [10]

Answer:

If a scatter plot has no association then it's ordered pairs have no predictable pattern.

Step-by-step explanation:

8 0

2 years ago

Y = −1/3x + 2

alukav5142 [94]

Answer:

The solution is (0, 2).

Step-by-step explanation:

Here we have two different equations for y. Equate them to eliminate y. Solve the resulting equation for x:

y = −1/3x + 2 = y = x + 2

Simplifying, we get (-1/3)x = x, and so x must be 0.

Then, using the second equation, we find that y = 0 + 2 = 2.

The solution is (0, 2).

3 0

2 years ago

Question 2 of 10

attashe74 [19]

Answer:

This is true

LMN is a right triangle

7 0

3 years ago