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
vekshin1
3 years ago
8

Emmy throws a doggy toy up in the air. The path of the toy is modeled by the function f(x)=−x^2+4x+5, where x is the number of f

eet the toy is from Emmy and f(x) is the height of the toy. What is the maximum height of the toy?
Mathematics
1 answer:
Molodets [167]3 years ago
4 0

Answer:

9feet

Step-by-step explanation:

Given the path of the toy modeled by the function f(x)=−x^2+4x+5, where x is the number of feet the toy is from Emmy and f(x) is the height of the toy.

AT maximum height, the velocity of the toy will be zero. Hence;

df(x)/dx = 0

-2x + 4 = 0

-2x = -4

x = -4/-2

x = 2

Get the maximum height;

Substitute x = 2 into the given function;

f(x)=−x^2+4x+5

f(2)=−2^2+4(2)+5

f(2) = -4+8+5

f(2) = 9feet

Hence the maximum height of the toy is 9feet

You might be interested in
the amount of interest earned in a savings account varies directly with the amount of maney saved. if $126 in intrest is earned
Mashcka [7]
2,000 + 1,000 = 3,00 so you would have $2,000 more to get to 3,000
3 0
3 years ago
Plzzzzz help meee i do not know it
Andrej [43]

Answer:

70 cubic cenimeters

Step-by-step explanation:

please give brianly!

7 0
3 years ago
Help me with a math question plz
Kruka [31]

Answer:

x = 80

Step-by-step explanation:

Thank you for the clear diagram. We don't always get them.

Argument

There are two kinds of angles associated with a triangle

  1. Interior angles
  2. Exterior angles

You have both kinds in this question. The interior angles are the ones that make up the triangle itself. The ones you are concerned about are x and 38°.

The other kind is formed by extending one of the sides. In this question, the value of the exterior angle is 118°.

Rule

The two interior angles NOT connected to the given exterior angle are equal (when added) to the exterior angle.

In plain English what that means is

x + 38 = 118

Solution

x + 38 = 118                      Subtract 38 from both sides.

x + 38 - 38 = 118 - 38      

x = 80

So x = 80  

4 0
3 years ago
If x-9 is a factor of x^2 -5x-36 what is the other factor?<br> A-x-4<br> B-x+4<br> C-x-6<br> D-x+6
poizon [28]

Answer:

B

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Write these as normal numbers.
netineya [11]

Answer:

Step-by-step explanation:

5.1 × 108 = 550.8

9.6 × 10^0

10^0 = 1

9.6 × 1 = 9.4

2.44 × 10 = 24.4

5.023 × 1010 = 5073.23

4 0
3 years ago
Other questions:
  • In 4.59 what does the nine stand for?
    13·2 answers
  • Find the area under the curve y = 25/x3 from x = 1 to x = t. Evaluate the area under the curve for t = 10, t = 100, and t = 1000
    15·1 answer
  • Can someone help me figure this out pls and thank you
    13·2 answers
  • Solve the inequality and write the solution in interval notation:<br> k/-12 ≤ 15.
    5·1 answer
  • Can you help me with this question please THANK YOU IF YOU HELP ME
    15·1 answer
  • How do I do this? 50 points plus brainliest.
    12·1 answer
  • The quotient of 22 and a number a<br>Write the phrase as an expression ​
    7·1 answer
  • Solve -7y=42 <br> What is y?
    5·2 answers
  • 6) HELP plz ASAP the last one plz help
    10·2 answers
  • What is 61,734 divided by 46
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!