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
arlik [135]
3 years ago
11

The fucntion f(x)=2x^2+3x+5 when evaluated, gives a value of 19. What is the functions input value?

Mathematics
1 answer:
BlackZzzverrR [31]3 years ago
8 0

Answer:

x1= 14/4 and X2 = -2

Step-by-step explanation:

To find the values of "X" for which when the function is evaluated gives 19 we need to equal the function to 19, as follows:

2x^2+3x+5 = 19

2x^2+3x+5-19=0

2x^2+3x-14=0

Then, solving for "x" we need to use the quadratic formula (Attached), where a, b, and c, are the following:

a: 2 b: 3 c: 14

Using the quadratic formula, we get:

x1= 14/4 and X2 = -2

You might be interested in
How do you solve 8x+5=3x+15
sladkih [1.3K]
8x + 5 = 3x + 15

8x - 3x = 15 - 5   (put same kinds of number on one side and change the signs)

5x = 10 (simplify)

5x/5 = 10/5 (simplify)

x = 2 (answer)

hope this helps

8 0
3 years ago
Miles buys a 10-ounce bag of chips. He weighs it in a scale and makes four measurements. Which measurement is the most accurate
MaRussiya [10]
I believe it's A(that would be the closest to 10oz)
4 0
3 years ago
Read 2 more answers
Ben drinks tea at an incredible rate. He drinks 3 1/2 liters of tea every 2/3 of an hour. Ben drinks tea at a constant rate. How
s344n2d4d5 [400]
Divide 3 1/2 by 2/3. 3 1/2 = 7/2 as an improper fraction, so we have 7/2 ÷ 2/3 = 7/2 * 3/2 = 21/4 = 5 1/4 L
5 0
3 years ago
Read 2 more answers
Describe the steps needed to solve 8x-12y=-3 for y.
Sholpan [36]

Answer:

y = (2 x)/3 + 1/4

Step-by-step explanation:

Solve for y:

8 x - 12 y = -3

Subtract 8 x from both sides:

-12 y = -8 x - 3

Divide both sides by -12:

Answer: y = (2 x)/3 + 1/4

4 0
3 years ago
Covert (3×10²)(2×10³) to scientific notation. Show work please.
leonid [27]
(3*2)(10^2 * 10^3) = 6*10^5
4 0
3 years ago
Other questions:
  • 3+(4×12) in expression words
    9·1 answer
  • Micah is deciding what rooms of his house he is going to paint. He wants to spend no more than $150 on the paint and supplies.
    14·1 answer
  • A rope is swinging in such a way that the length of the arc is decreasing geometrically. If the first arc is 18 feet long and th
    11·2 answers
  • The graph of y>1/2x-2 is shown. Which set contains only points that satisfy the inequality
    8·1 answer
  • Simplify sin Θ/√1-sin^2 Θ
    12·2 answers
  • 3.6.PS-11
    11·1 answer
  • Solve x2+x-1=0 using the quadratic formula.
    13·1 answer
  • How do you do this ​
    10·1 answer
  • How can you find the y-coordinates of the midpoint of a vertical line segment with endpoints at (0,0) and (0,-12)? Check all tha
    9·1 answer
  • What is the interest on a. deposit of $1000 with an interest rate of 1% for 10 years?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!