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
sveta [45]
3 years ago
14

HELP FOR BRAQINLIETS T

Mathematics
2 answers:
ASHA 777 [7]3 years ago
7 0

Answer:

D. -6 + 2\sqrt{5}

Step-by-step explanation:

The answer is D because to solve for X you use the quadratic formula which is...

-b±\sqrt{b^{2} - 4ac}

now just plug in which would be

-6±\sqrt{6^{2} - 4(1)(4) }

then solve and the final answer would be

-6 ± 2\sqrt{5} but there is only one answer for this which is a positive that is how I got  

-6 + 2\sqrt{5}

Tcecarenko [31]3 years ago
3 0

Answer:

A -3-\sqrt{5\\} \\

Step-by-step explanation:

I use the quadratic formula to solve

You might be interested in
Is a basketball polyhedron? explain.
Alinara [238K]
No, because a basketball doesn't have any flat surfaces. It's completely round.
7 0
3 years ago
A shooting star forms a right triangle with the Earth and the Sun, as shown below:
Semmy [17]

I found this!!!!

The scientist can use these two measurements to calculate the distance between the Sun and the shooting star by applying one of the trigonometric functions: Cosine of an angle.

- The scientist can substitute these measurements into cos\alpha=\frac{adjacent}{hypotenuse}cosα=

hypotenuse

adjacent

and solve for the distance between the Sun and the shooting star (which would be the hypotenuse of the righ triangle).

Step-by-step explanation:

You can observe in the figure attached that "AC" is the distance between the Sun and the shooting star.

Knowing the distance between the Earth and the Sun "y" and the angle x°, the scientist can use only these two measurements to calculate the distance between the Sun and the shooting star by applying one of the trigonometric functions: Cosine of an angle.

This is:

cos\alpha=\frac{adjacent}{hypotenuse}cosα=

hypotenuse

adjacent

In this case:

\begin{gathered}\alpha=x\°\\\\adjacent=BC=y\\\\hypotenuse=AC\end{gathered}

α=x\°

adjacent=BC=y

hypotenuse=AC

Therefore, the scientist can substitute these measurements into cos\alpha=\frac{adjacent}{hypotenuse}cosα=

hypotenuse

adjacent

, and solve for the distance between the Sun and the shooting star "AC":

cos(x\°)=\frac{y}{AC}cos(x\°)=

AC

y

AC=\frac{y}{cos(x\°)}AC=

cos(x\°)

y

7 0
3 years ago
Help pls don not under stand
m_a_m_a [10]

The expected value of health care without insurance is $437.25.

The expected value of health care with insurance is $1,636.40.

<h3>What are the expected values?</h3>

The expected values can be determined by multiplying the respective probabilities by its associated costs.

The expected value of health care without insurance = (1 x 0) + (0.32 x 1050) + (0.45 x $225) = $437.25.

The expected value of health care with insurance = (1 x 1580) + (0.32 x 75) + (0.45 x $72) = $1,636.40.

To learn more about multiplication, please check: brainly.com/question/13814687

#SPJ1

4 0
2 years ago
Is 5400 perfect square?if not how it should cames 5400 by division ​
kap26 [50]

Answer:

73.4846922835 = 73.5 and no it is not a perfect square 5400/100 = 54

8 0
3 years ago
Enter the sum of the numbers as the product of their GCF and another sum.
Tpy6a [65]

Answer:

8

Step-by-step explanation:

Explanation: The GCF of 56 and 64 is 8 , as 8 goes into 56 exactly 7 times and into 64 exactly 8 times. 8(8)+7(8)=8(7+8).

8 0
3 years ago
Other questions:
  • What expression is equivalent to x^2+2x-24/3x+18
    5·1 answer
  • Which question is statical?
    15·1 answer
  • Is 55 810 a multiple of 10
    12·2 answers
  • 2. Claudia makes $16.47 per hour and works for 39 hours. What is her
    15·1 answer
  • For f(x), evaluate the following: a. f(0) b. f(6)
    7·1 answer
  • I Have A 58 in Math Please Help Who Ever Can Make A Real World Scenario With The Pythagorean Theorem And The Solution Step By St
    14·1 answer
  • Hugh has to earn at least $400 to meet his fundraising goal he only has 100 books that he plans to sell at $8 each. Which inequa
    12·1 answer
  • Devon painted 65% of one wall in his bedroom blue. Which shaded area represents the amount of the wall that Devon painted blue?
    6·1 answer
  • Solve pls brainliest
    9·2 answers
  • Photo Below Please check the photo
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!