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
antoniya [11.8K]
3 years ago
15

Can you help please!

Mathematics
1 answer:
never [62]3 years ago
6 0

Answer:

c

Step-by-step explanation:

i just took the test

You might be interested in
Rounded to the nearest hundredth , what is the positive solution to the quadratic equation 0=2x^2+3x-8
elena-14-01-66 [18.8K]

The positive solution to the quadratic equation 2 x^{2}+3 x-8=0 is x = 1.39

<h3><u>Solution:</u></h3>

Given quadratic equation is 2 x^{2}+3 x-8=0

<em><u>The general quadratic equation is of form:</u></em>

a x^{2}+b x+c=0

Now comparing the general equation with the given equation we get

a = 2 , b = 3 and c = -8

<em><u>The formula to determine roots of the quadratic equation is:</u></em>

x=\frac{-b \pm \sqrt{b^{2}-4 a c}}{2 a}

On plugging in vlaues, we get

x=\frac{-3 \pm \sqrt{3^{2}-4 \times 2 \times(-8)}}{2 \times 2}

\mathrm{x}=\frac{-3 \pm \sqrt{9-(-64)}}{4}

On solving we get,

\begin{array}{l}{\mathrm{x}=\frac{-3 \pm \sqrt{9+64}}{4}} \\\\ {\mathrm{x}=\frac{-3 \pm \sqrt{73}}{4}}\end{array}

\mathrm{x}=\frac{-3+\sqrt{73}}{4} \text { OR } \mathrm{x}=\frac{-3-\sqrt{73}}{4}

x = 1.39  OR  x = -2.89  

Hence , the positive solution to the quadratic equation  is x = 1.39

7 0
4 years ago
What is the measure of an angle at the centre whose radius is equal to arc length?​
klasskru [66]

Answer:

radian

Step-by-step explanation:

A radian is a unit of angle that is equal to the angle created at the center of a circle whose arc is equal in length to the radius.

<h2><u><em>Hope it helps!!!</em></u></h2><h2><u><em>Brainliest pls!!!</em></u></h2>
4 0
3 years ago
Please help me im having a mental breakdown over this
Likurg_2 [28]

Answer:I have the same thing

Step-by-step explanation:

7 0
3 years ago
Help me plz check it
Nikolay [14]

3 1/4 = 3.25

1 mile = 5280

5280 * 3.25 = 17,160

Correct answer is D. 17,160

6 0
3 years ago
A single card is drawn from a standard 52 card deck.
liberstina [14]

Answer:

selena gomez promoting a covergirl magazine is an example of what propaganda device? A.testimonial B.name-calling C.bandwagon

3 0
3 years ago
Other questions:
  • 604,016 in expanded form
    15·1 answer
  • What is the answer? trying hard here
    15·1 answer
  • A measure of ________ for a numerical data set describes how its values vary with a single number
    8·1 answer
  • dennis ran a mile in 593.7 seconds.martina ran a mile in 573.36 seconds. what was the difference in their running times? A-5.14
    11·2 answers
  • I really need help. I don't get this.
    6·2 answers
  • Which of these is a true statement?
    6·2 answers
  • Is 5/8 grater than or equal to 11/16
    5·1 answer
  • (Please provide an explanation as well if you can, I'm pretty confused on how you would find this out on any other problems)
    12·1 answer
  • Which expression is equivalent to the given expression? −(12y+14) A:−14(1+2y) B:14(2y−1) C:−2(14y−18) D:2(18−14y)
    10·2 answers
  • Please help me im stuggling
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!