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hey guys i need with math word problems i hope u guys can help me on this:).

A football punted during a high school football game followed the path of a parabola. The path can be modelled by the function

D (t) = -5t^2 + 15T +1, t = 0

Where t is the number of seconds which have elapsed since the football was punted, and d(t) is the number of metres above the ground after t seconds.

A) Sketch graph on the grid

^^ I'm new to using the Texas Instruments calculator and if someone could tell me what to plug in and stuff and exactly how to find the answer, that would be so helpful.

B) What was the height of the football above the ground as the punter made contact with the football?

C) What was the height of the football above the ground 1 second after contact?

D) What is the maximum height reached by the football?

What relation does this have to the vertex of the parabola?

E) How many seconds had elapsed when the football reached it maximum height, what relation does this have to the vertex?

F) The punt was not fielded by the opposition and the football hit the ground. How many seconds did it take for the football to hit the ground?

G) The original domain was given as t = 0

Write a more accurate domain for the function which describes the path of the football.

2x(x+3) = 0

Is there a way to solve that using the below methods?

Substitute zero for f(x) and find the roots of the resulting equation, or graph the function and determine the x-intercepts of the graph.

Finding the roots of a single variable equation may involve factoring. Except in the case of a linear equation, set the equation to zero before factoring. Recall the following techniques for factoring: common factors, difference of two squares, trinomials in the form x^2+bx+c=0, and trinomials of the form ax^2+bx+c=0

Originally posted by: -Ayeshaa-

2x(x+3) = 0

Is there a way to solve that using the below methods?

Substitute zero for f(x) and find the roots of the resulting equation, or graph the function and determine the x-intercepts of the graph.

You already know this.
2x(x+3) = 0
x = 0, x+3 = 0
x = 0, x = -3

For graph method, plot the graph of
y = 2x(x+3)

and see where it cuts the x axis.

Anybody with knowledge of Genetics? To help a student, I urgently need answers to this questions.

1. A heterozygote has a 10% fitness disadvantage relative to wildtype homozygotes. The mutant homozygote has a 20% fitness disadvantage. What do you predict after many generations have passed?
A) Fixation of the mutant allele
B) Loss of the mutant allele (Is this correct option)
C) A stable equilibrium maintaining both alleles
D) An unstable equilibrium with possible fixation or loss of either allele

2. Average polymorphism (heterozygosity) within a species at a particular gene region is expected to be?
A) 2
B) 1/(2N)
C) 4N (Is this correct option?)
D) 2N
E) 2N

3. The chance of coalescence of two lineages of a locus each generation is?
A) 2
B) 1/(2N) (Is this correct option?)
C) 4N
D) 2N
E) 2N

4. The average time to coalescence of two lineages is how many generations?
A) 2
B) 1/(2N)
C) 4N
D) 2N (Is this correct option?)
E) 2N

5. The divergence expected between species for a gene is?
A) 2
B) 1/(2N)
C) 4N (Is this correct option?)
D) 2N
E) 2N

6. What is the expected allele frequency in the next generation?
A) wA=wB
B) p '= pwp/w (Is this correct option?)
C) wAA<wAB>wBB
D) wA<w

7. Which represents the equilibrium value?
A) wA=wB (Is this correct option?)
B) p '= pwp/w
C) wAA<wAB>wBB
D) wA<w

8. Which represents overdominance?
A) wA=wB
B) p '= pwp/w
C) wAA<wAB>wBB (Is this correct option?)
D) wA<w

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What effect do you think television has on people today?

What is the role of the CRTC? U think the agency is necessary?

never mind ...😳

Discuss the statement "exercise is the most important factor in terms of good health."
Any ideas?

Thank you
.SilentPrincess

Originally posted by: .SilentPrincess

Discuss the statement "exercise is the most important factor in terms of good health."
Any ideas?

Thank you
.SilentPrincess

It maximizes lung capacity, helps boost the immune system, and helps prevent health problems, like diabetes. It also imprives mental health and performance and prevents depression. Hope I've helped give you some ideas.