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
ipn [44]
3 years ago
7

PLZ HELP ASAP 30 POINTS !!!! Which is a zero of the quadratic function f(x) = 9x2 – 54x – 19?

Mathematics
1 answer:
Firdavs [7]3 years ago
3 0

Answer: x =6 1/3

Step-by-step explanation:

Whichever value of x from the given option that make f(x) = 0 is the zero of f(x). x = 6 1/3 satisfies this, you can check by replacing 6 1/3 by x in the equation. 6 1/3 can be written as 19/3

f(19/3) = 9(19/3)² - 54(19/3) - 19

= 9(361/9) - 54(19/3) - 19

= 361 - 342 - 19

= 0.

The remaining values don't give 0.

You might be interested in
The Jones family is landscaping their yard. Their yard yard is 160 square feet and one side is 10 feet long. What is the length
Stels [109]
The length of the other side of the yard is 16 feet
work: 160 divided by 10
hope it helps
3 0
3 years ago
Which point is an x-intercept of the quadratic function f(x)=(x-4)(x+2)
Mademuasel [1]

Answer:

x = - 2 or x = 4

Step-by-step explanation:

To find the x- intercepts let f(x) = 0, that is

(x - 4)(x + 2) = 0

Equate each factor to zero and solve for x

x - 4 = 0 ⇒ x = 4

x + 2 = 0 ⇒ x = - 2

The x- intercepts are at x = - 2, x = 4

3 0
3 years ago
PLEASE HELP ME ON THIS
ra1l [238]

Answer:

<h2>B</h2>

Step-by-step explanation:

it increased by two inches from noon to 1pm and increased another two inches from 3pm - 4pm

7 0
3 years ago
Plz help I need help plz
dem82 [27]
Answer:

33/4 or 8 1/4

Step-by-step explanation:

-3 2/3 • (-2 1/4)

Step 1. Convert each into improper fractions
(Reply for details)

-11/3 • (-9/4)

Step 2. Multiply
(Reply for details)

99/12

Step 3. Simplify
(Reply for details)

33/4 or 8 1/4
4 0
3 years ago
Can someone please help me with number 3
gladu [14]

Answer:

...

Step-by-step explanation:

the central angle is the same as the arc

mDE= 104°

mFE= 76°

mDEF= 180°

mCFD= 180°

mDFE= 256°

5 0
3 years ago
Other questions:
  • Samantha has 29 songs downloaded to her new tablet. She wants to have a total of 100 songs on the tablet. How many more songs do
    6·1 answer
  • Identify all the real roots of 4x^4+31x^3-4x^2-89x+22=0
    7·1 answer
  • 12 plus the product of 2 and some number is equal to the product of 4 and some number minus 8 .
    9·2 answers
  • What is the equation in point−slope form of the line passing through (0, 6) and (1, 3)? (5 points)
    15·1 answer
  • The quotient of a number and 8 is at most -6
    11·1 answer
  • Ruby and Will are running a team relay race. Will runs twice as far as Ruby. Together they run 18 miles. How far did each person
    11·1 answer
  • Evaluate |3x| +4 when x=-5
    9·1 answer
  • The side lengths of a triangle are 5, 3, and 4. Is this a right triangle?
    10·1 answer
  • 110 divided by 4 using partial quotient
    9·2 answers
  • you are 6 1/2 feet below sea level. you swim towards the surface 2 2/3 feet. what is your new position the water?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!