1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Andrej [43]
3 years ago
5

This question is WORTH 15 POINTS

Mathematics
1 answer:
masha68 [24]3 years ago
8 0
3x² - 33x - 180 = 0
3(x² - 11x - 60) = 0
3(x² - 15x + 4x - 60) = 0
3(x + 4)(x - 15) = 0
3(x - 4) = 0 or x - 15 = 0
3x - 12 = 0     <u>  + 15  + 15</u>
<u>    + 12 + 12</u>           x = 15
       <u>3x</u> = <u>12</u>
        3      4
         x = 3

The answer is equal to H.15 and E. 4.
You might be interested in
Which description of the vector shown is correct ?
BartSMP [9]

Answer:

(B) The magnitude is 7sqrt2, and the direction angle is approximately 135 degrees.

Step-by-step explanation:

From the figure, the coordinate of the tail of the vector,

(x_1,y_1)=(3,-6).

The coordinate of the head of the vector,

(x_2,y_2)=(-4,1).

The magnitude of a vector is the length between the head and tail of the vector.

By using the distance formula,

the magnitude of the vector = \sqrt{(1-(-6))^2+(-4-3)^2}

=\sqrt{(7^2+(-7)^2}\\\\=\sqrt{98}\\\\=7\sqrt{2}

Now, let \theta be the angle made by the vector with the positive direction of the x-axis, so

\tan\theta = \frac{y_2-y_1}{x_2-x_1}\\\\\Rightarrow \tan\theta = \frac{1-(-6)}{-4-3}=\frac{7}{-7}=-1 \\\\\Rightarrow \theta = \tan^{-1}(-1) \\\\\Rightarrow \theta =\pi- \tan^{-1}1 \\\\\Rightarrow \theta = \pi-\frac{\pi}{4} \\\\\Rightarrow \theta =\frac{3\pi}{4} \\\\\Rightarrow \theta = 135 ^{\circ}.

So, the magnitude of the vector is 7\sqrt 2 which makes 135 ^{\circ} with the positive direction of the x-axis.

Hence, option (B) is correct.

8 0
2 years ago
Read 2 more answers
Pleaseeehelp me !!!!
Volgvan

Answer:

Go on to photo math it's good for equations

8 0
3 years ago
NEED HELP ASAP PLEASE AND THANK YOU<br> ALEGRA 1
sammy [17]
16 and 157
Accordingly
5 0
3 years ago
Read 2 more answers
Free 1/10 K giveaway pls give my brainliest, add as a friend, say sth nice
malfutka [58]

Answer:

Huh?? I have no idea what you said.

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Solve for the exact value of x.
egoroff_w [7]

Answer:

x = 4

Step-by-step explanation:

4 0
2 years ago
Other questions:
  • Which ordered pair makes both inequalities true? y &gt; –2x + 3 y &lt; x – 2 A.(0,0) B.(0,–1) C.(1,1) D.(3,0)
    9·1 answer
  • Estimate the quotient 57.8 ÷81
    10·2 answers
  • Can anyone help me with the last question plzzz!!!
    11·1 answer
  • The lengths of nails produced in a factory are normally distributed with a mean of 5.02 centimeters and a standard deviation of
    7·1 answer
  • Problem 7-12 don't understand it so can I have answer please.
    5·1 answer
  • 2. An apple has a diameter of 8 cm. An orange has a diameter of 11 cm
    8·2 answers
  • Please help me find the circumference and area ​
    12·2 answers
  • Kasey has taken down 6 shirts and 3 pair of pants on her vacation.What is the number of different shirt and pants combinations t
    8·1 answer
  • How do u estimate a probability?​
    14·1 answer
  • Help please : -5+6/3 + 3+6/-5 =
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!