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
vredina [299]
3 years ago
11

Solve the equation 4c2 + 7c – 5 = 0 using the quadratic formula

Mathematics
1 answer:
sergiy2304 [10]3 years ago
3 0

4c2 + 7c – 5 = 0   a=4   b=7   c=-5

x = [-b +-sq root (b^2 -4ac)] / 2a

x = [-7 +-sq root(7^2 -4*4*-5)] / 2*4

x = [-7 +-sq root(49 + 80)] / 8

x = [-7 +-5.5677643628] /8

x1 = 0.544727125

x2 = -2.294727125



You might be interested in
the davis' backyard measures 40 ft x90 ft. find the area of their backyardand show how the area could be written using exponents
drek231 [11]
2,100 is the real number. 1,050² is exponent form.
8 0
3 years ago
Round 17.62114537 to the nearest tenth
harina [27]

Answer:

17.6

Step-by-step explanation:  Rounded to the nearest 0.1 or

the Tenths Place.

7 0
4 years ago
A square has an area of 150 square centimeters. Which of the
Sergio [31]

Answer:

C) 12.2 cm

Step-by-step explanation:

To find the area of a square, you multiply length and width, which for a square, are the same. So to find the length of one of its sides, you have to take the square root of the area.

L^{2} = 150\\\\L=\sqrt{150} \\L= 12.2\\

7 0
3 years ago
What does the number 120 in the equation mean y= 5x + 120
Maru [420]

Answer:

120 is the y intercept in the formula  y=mx+b

hope this helped!!

7 0
3 years ago
A Sum of $14 is made of 92 coins consisting of dimes and quarters. How Many are there of each kind of coin
steposvetlana [31]
So first I would say, what if all of them were dimes, how far away would it be from $14?

So 92 coins * 10 cents = $9.20

So it's 4.80 dollars away from 14 dollars.

So if we were to switch one to a quarter, it would increase by 0.15 cents.

So we want to see how many increases we need to reach 4.80 dollars more.

4.80/0.15 = 32

So there are 32 quarters and 60 dimes.
7 0
3 years ago
Read 2 more answers
Other questions:
  • 4. Which is NOT a way in which thermal energy is transferred? A. Conduction , B. Convection , C. Radiation , D. Sublimation
    11·2 answers
  • Give me sample rate/ratio questions
    15·1 answer
  • What are the values of the variables?
    9·1 answer
  • Patricia serves the volleyball to Amy with an upward velocity of 17.5ft/s. The ball is 5 feet above the ground when she strikes
    7·1 answer
  • Please help me out!!!!!!!!!!!
    15·1 answer
  • PLEASE HELP!!
    11·2 answers
  • Does this question have any correct answer? I can't see how any of the answer choices are correct.
    11·1 answer
  • Hi if you know 8th grd math pls help
    12·1 answer
  • Find the equivalent fraction 2/6= __ 2/5= ___​
    8·1 answer
  • A horse was galloping at average speed of 50km/hr for the first 12 minutes. For the next x minutes, the horse slowed down and it
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!