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
musickatia [10]
2 years ago
15

8fsquare + 4f - 60 its an math equation can anyone plz gimme the answer

Mathematics
1 answer:
hammer [34]2 years ago
6 0

Answer:

f = -3 , 5/2

Step-by-step explanation:

8f² + 4f - 60 = 0

Divide the entire equation by 4

2f² + f  - 15 = 0

Product = -30

Sum = 1

Factors = -5 , 6      {(-5)*6 = -30  and -5 +6 = 1}

2f² + f -15 = 0        {Rewrite the middle term using the factors}

2f² + 6f - 5f -15 = 0

2f(f + 3) - 5(f + 3) = 0

(f +3) (2f - 5) = 0

f +3  = 0    ; 2f -5 = 0

f = -3         ; 2f = 5

                    f = 5/2

You might be interested in
A baseball team won 20 games and lost 10 games. What percent of the games did the team win?
omeli [17]
50% of the games were won
5 0
3 years ago
Hey! i’ll give brainliest please help.
dexar [7]

The last name I am pretty sure of it.

7 0
2 years ago
Read 2 more answers
Benny gets paid $500 every two weeks. After his paycheck is deposited, he has to pay his cell phone bill of $30 and buy a birthd
aliina [53]

Answer:

$80

Step-by-step explanation:

500-390-30

$80

7 0
2 years ago
Read 2 more answers
Light in vacuum is incident on the surface of a slab of transparent material. In the vacuum the beam makes an angle of 43.8° wit
REY [17]

Answer:

Index of refraction of transparent is 1.48

Step-by-step explanation:

Snell's law states that;

n1(sinθ1) = n2(sinθ2)

Where;

n1 and n2 represent the indices of refraction for the two media, and θ1 and θ2 are the angles of incidence and refraction that the ray R makes with the normal.

In this question;

n1 = 1;

θ1 = 43.8°

θ2 = 19.3°

n2 is unknown.

Thus using Snell's law, we have;

1 x sin 43.8 = n2 x sin 19.3

n2 = (sin 43.8)/sin 19.3

n2 = 1.48

4 0
3 years ago
Find the value of x. If necessary, round your answer to the nearest tenth. The figure is not drawn to scale. (1 point) 9.7 9.2 9
Vilka [71]
X= 9.2

From the figure, the chord (12) is drawn with a line (from the center of the circle) perpendicular to it. It can be said that the chord 12 is bisected by the 7 long line from the center which gives us with 6 each of the two parts of the chord. Since they are forming (the 6 and 7) a right angled triangle, we can then use Pythagorean theorem to find X, which can be seen as the radius at the same time hypotenuse of the right angled triangle.
4 0
2 years ago
Other questions:
  • The roots of 6 corn plants had depths of -3.54 feet? /2 4/5 feet, /3.86 feet, -3 2/5 feet. How many corn plants had roots betwee
    10·1 answer
  • Tamika makes a 5.5% commision selling electronics how much commission doesshe make if she sells a flat screen for 10000
    12·1 answer
  • 0.8 is 10 times as great as what decimal
    7·1 answer
  • Type SSS, SAS, ASA, SAA, or HL to justify why the two larger triangles are congruent.
    15·1 answer
  • If I make 111,000 a year how much do I bring home monthly ?
    12·2 answers
  • elect answers from the drop-down menus to correctly complete the statements. A scale factor of was applied to the first triangle
    5·2 answers
  • Four years ago, you started a job with an annual salary of $40,000. At the end of each year on the job, you received a raise of
    11·1 answer
  • How does using a model help me multiply decimals by whole numbers?
    9·1 answer
  • A publisher prints 1912 copies of a book in each print run.If they print 305 runs,the manager wants to know about how many books
    5·1 answer
  • What is the following product
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!