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3 years ago

F(x) = x^2 - 3x + 18

Mathematics

2 answers:

Marat540 [252]3 years ago

3 0

Answer: discriminant of f is -63

Step-by-step explanation:

olya-2409 [2.1K]3 years ago

3 0

Answer:

-63

and there are no distinct real numbers

Step-by-step explanation:

-63

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The graph shows an image of a dilation about the origin with a scale factor of . What are the coordinates of the pre-image of ,

timama [110]

Answer:

A- (-8,-12)

Step-by-step explanation:

I got it right on the test

7 0

3 years ago

In triangle ABC,D is a point on side AC such that BD=DC and angle BCD measures 70 degrees. What is the measure if of angle ADB?

mars1129 [50]

If BD=DC that means triangle CDB is isosceles triangle and the measure of angles ∡CDB and ∡BCD is the same
   ∡CDB=∡BCD=70°

The angles ∡ADB and ∡CDB are adjacent and suplementary angles

It means ∡ADB + ∡CDB = 180°
      ∡ADB = 180° - ∡CDB
      ∡ADB = 180° - 70°
      <u>∡ADB = 110°</u>

5 0

3 years ago

M(−6, 7) is the midpoint of DF¯¯¯¯¯ . The coordinates of point D are (−14, 13) .

Helen [10]

(2, 1) is the answer

4 0

3 years ago

Read 2 more answers

Find all solutions of each equation on the interval 0 ≤ x<2π.

Aleksandr [31]

Answer:

$x = 0 \: or \:x = \pi$

Step-by-step explanation:

The given equation is

$\tan^{2} (x) \sec^{2} (x) + \sec^{2} (x) - \tan^{2} (x) = 2$

Subtract 2 from both sides and factor by grouping to get:

$\sec^{2} (x)(\tan^{2} (x) + 2) -1( \tan^{2} (x) + 2)$

$(\tan^{2} (x) + 2) (\sec^{2} (x) - 1) = 0$

By the zero product principle:

$(\tan^{2} (x) + 2) = 0 \: or \: (\sec^{2} (x) - 1) = 0$

$(\tan^{2} (x) = - 2 \: or \: \sec^{2} (x) = 1$

When

$\sec^{2} (x) = 1 \implies\cos^{2} (x) = 1$

$\implies \: \cos(x) = \pm1$

This implies

$x = 0 \: or \:x = \pi$

When

${ \tan }^{2} (x) = - 2$

We have

$\tan(x) = \pm \sqrt{ - 2}$

hence x is not defined for all real numbers

6 0

3 years ago

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PLEASE HELP EXPLAIN THIS!?!

zalisa [80]

Using your approximate y-intercept on the line of best fit, your equation would be y=11/7x + 3.

We find the slope by choosing two points that are on the line:

(9, 18) is easy to spot; and (2, 7) is fairly easy to spot as well. The formula for slope is:
m=y₂-y₁/x₂-x₁

m=7-18/2-9 = -11/-7 = 11/7

Slope intercept form, y=mx+b, has the slope and the y-intercept. Plugging those in we have y=11/7x+3.

8 0

4 years ago

Read 2 more answers