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
Ilya [14]
3 years ago
15

Which of the following is the maximum value of the equation y=-2x^2-3x+4

Mathematics
1 answer:
mylen [45]3 years ago
4 0
Y=-2x^2-3x+4

dy/dx=-4x-3, d2y/dx2=-4

When the velocity, dy/dx=0, then y(x) is at an absolute maximum because the acceleration is a constant negative, -4.

dy/dx=0 only when -4x-3=0, -4x=3, x=-3/4

y(-3/4)=5.125

So the maximum value of y is 5 1/8
You might be interested in
If BI=9 and HA=15, find the scale factor​
inessss [21]

Answer:

5:3

Step-by-step explanation:

to find the scale factor you set up the proportion as 15/9 and reduce to 5/3

7 0
3 years ago
Could someone help me understand how to solve this? I'm having trouble with it, it's about Applications of Systems of Linear Equ
Anna35 [415]

Answer:

Therefore the amount in the 4% savings account = $550

Step-by-step explanation:

i) the total amount = $1500

ii) let the amount placed in the 4% interest savings account = x

iii) let the amount placed in the 5% interest savings account  = y

iv) therefore fro i) we can say  x  +  y = 1500

v) the total interest gained = $69.5

vi) therefore we can write 0.04x + 0.05y = 69.50

vii) multiplying equation vi) with 100 we get 4x + 5y = 6950

viii) Multiplying the equation in iv) by 5 we get 5x + 5y = 7500

ix) Subtracting equation in vii) from equation in viii) we get x = $550

x) Therefore the amount in the 4% savings account = $550

3 0
3 years ago
Put the following equation of a line into slope-intercept form, simplifying all
soldier1979 [14.2K]
Answer: y = 2x - 2

Explanation: The slope-intercept form is y = mx + b, where m is the slope and b is the y-intercept.
y = mx + b
Subtract 2x from both sides of the equation.
-y = 2 - 2x
Multiply each term in -y = 2 - 2x by -1
(-y) . -1 = 2 . -1 + (-2x) . -1
Multiply (-y) . -1
Multiply -1 by -1
Multiply y by 1
y = 2 . -1 + (-2x) . -1
Simplify each term
Multiply 2 by -1
y = -2 + (-2x) . -1
Multiply -1 by -2
y = -2 + 2x
Reorder -2 and 2x
y = 2x - 2
4 0
3 years ago
Dice is tossed once what is the probability of the number 7 ​
gulaghasi [49]

Answer:

0

Assuming it’s a normal dice, the highest number is 6.
You cannot get the number 7 since it doesn’t exist on the dice.

8 0
2 years ago
Sylvie finds the solution to the system of equations by graphing.
Goryan [66]

Answer:

sorry don't know the answer

8 0
3 years ago
Other questions:
  • PLEASEEEEE HELP WITH MY LAST QUESTION, WILL GET BRAINIEST AND TRIPLE POINTS!!
    15·1 answer
  • The area of a rectangle is 28m^2 and the length of a rectangle is 1 m more than twice the width. Find the dimensions of the rect
    14·1 answer
  • A-Plus Auto Body is painting disigns on a customer's car. They had 18 pints of blue paint on hand. They used 1/2 of it for the f
    10·1 answer
  • Ayo can yall help me plzzz
    5·2 answers
  • MATH QUESTION HELP ME PLS, KINDA URGENT!!
    11·2 answers
  • Urgent!! Math help!!!
    13·2 answers
  • Please help me with this math problem! I'm really confused.
    10·1 answer
  • - (64 - 36 + 5) + (45 - 87) = ?
    15·1 answer
  • Find the inverse <br><img src="https://tex.z-dn.net/?f=f%28x%29%3D%7Be%7D%5E%7B3x%20-%201%7D%20" id="TexFormula1" title="f(x)={e
    10·1 answer
  • Solve the equation 5(x + 2) = 6x + 3x − 14, and show your work. (5 points)
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!