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
sleet_krkn [62]
4 years ago
10

A quarterback throws an incomplete pass. The height of the football at time t is modeled by the equation h(t) = –16t2 + 40t + 7.

Rounded to the nearest tenth, the solutions to the equation when h(t) = 0 feet are –0.2 s and 2.7 s. Which solution can be eliminated and why?
Mathematics
2 answers:
PSYCHO15rus [73]4 years ago
6 0

Answer:

Its -0.2 Because time cannot be a negative value.

Step-by-step explanation:

Nostrana [21]4 years ago
5 0
Indicated here when h(t) = 0, we are to find for the time where the football has reached a certain height. 


Then, the values of t would be -0.2 and 2.7.

Since we are to look for the time, it is impossible for us to have an answer that has a negative value. So based from our answer, the solution that we will eliminate is the -0.2 one. Since its value is negative.

So, the correct value would be the 2.7 sec. one.
You might be interested in
<img src="https://tex.z-dn.net/?f=%20%20%7Bx%7D%5E%7B2%7D%20%20%3D%20%20%7B16%7D%5E%7Bx%7D%20" id="TexFormula1" title=" {x}^{2}
aalyn [17]
The value of x is -1/2 or -.5
4 0
3 years ago
Mrs. Barnes bought 12 pounds 8 ounces of flour. If she uses 4 ounces of flour for each batch of sugar cookies, how many batches
Misha Larkins [42]

Answer: 50 Batches

Step-by-step explanation:

16 ounces in a pound

12 pounds times 16 ounces is 192 ounces

192 ounces plus the extra 8 is 200 ounces of flour

200 divided by 4 ounces per batch

200/4= 50

3 0
3 years ago
Read 2 more answers
A species of fish was added to a lake. The population size P() of this species can be modeled by the following function, where t
____ [38]

Answer:

<em>The initial population size is 500 fish</em>

<em>Population size after 9 years: 1910 fish</em>

Step-by-step explanation:

<u>Mathematical Model</u>

We usually represent real situations as mathematical functions or rules that express the dependency of one variable quantity P with another variable quantity t.

The population size of a species of fish P(x) is modeled by the following function:

\displaystyle P(t)=\frac{3000}{1+3e^{-0.34t}}

Where t is the number of years elapsed since the species was added to the lake.

The initial population size can be found by substituting t for 0:

\displaystyle P(0)=\frac{2000}{1+3e^{-0.34*0}}

\displaystyle P(0)=\frac{2000}{1+3*1}

\displaystyle P(0)=\frac{2000}{4}

P(0)=500

The initial population size is 500 fish

The population size after t=9 years is:

\displaystyle P(9)=\frac{2000}{1+3e^{-0.34*9}}

\displaystyle P(9)=\frac{2000}{1+3e^{-3.06}}

\displaystyle P(9)=\frac{2000}{1.047}

P(9)\approx 1910

Population size after 9 years: 1910 fish

6 0
3 years ago
Michelle made 240 Rice Krunchy treats for the Fall Festival. Each treat has one extra ingredient. • 14 of the treats had chocola
horrorfan [7]

Answer:

i think it is c

Step-by-step explanation:

4 0
4 years ago
I need help please please
stiks02 [169]

Answer:

I'm pretty sure the answer is a.

8 0
3 years ago
Other questions:
  • SUPER URGENT Sam is eating a Big Hamburger. The first bite was 20% of the Hamburger, the second bite was 20% of what is left and
    11·2 answers
  • a dust is 1.5 ft wide and 5 feet long it is 3 feet above the floor what is the volume of the space under the desk
    9·1 answer
  • How do you graph a piecewise defined function?
    6·1 answer
  • Could someone please help me with this problem?<br>I keep getting the wrong answer
    12·1 answer
  • I need help on this I will give brainlist help it will mean a lot this is my last math problem help me!​
    5·2 answers
  • How do you do this one ?
    6·1 answer
  • PLZ HELP U WILL GET BRAINLIEST Solve for X:
    9·2 answers
  • Find all of the equilibrium solutions. Enter your answer as a list of ordered pairs (R,W), where R is the number of rabbits and
    15·1 answer
  • Write the equation of the circle:<br> center: (-9, 0), diameter: 10
    6·1 answer
  • If someone could help me I would mean a lot man.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!