MATHEMATICS HIGH SCHOOL

A ball is thrown into the air with an upward velocity of 44 ft/s. Its height h in feet after t seconds is given by the function h=-16t ^(2) +44t+9. What is the height of the ball after 2 seconds?

Answers

Answer 1
Answer: h=-16t^2+44t+9\n\nsubstitute\ t=2:\n\nh=-16\cdot2^2+44\cdot2+9=-16\cdot4+88+9=-64+97=33\n\nAnswer:33\ feets.
Answer 2
Answer: the\ function:\ \ h(t)=-16t^2+44t+9\n \n h=2\ \ \ \Rightarrow\ \ \ h(2)=-16\cdot 2^2+44\cdot 2+9=-16\cdot4+88+9=33\n \nAns.\ the\ height\ of\ the\ ball\ after\ 2\ seconds\ is\ 33\ feets

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Pls help ASAP I’ll give brainliest

Adita has two options for how to invest $1,000.Plan A: Put the $1,000 in an account that pays $100 per year.
Plan B: Put the $1,000 in an account that pays 5 percent interest per year.

Which statement is true?
Plan A will be worth more than plan B after two years.
Plan A will be worth the same amount as plan B after one year.
Plan B will be worth more than plan A after three years.
Plan B will be worth more than plan A after four years.

Answers

First let's calculation
Plan A = 1000 dollars to be invested in an account that pays 100 dollars per year. (1000 + 100 = 1100 dollars in a year)
Plab B = 1000 dollars to be invested in an account that pays 5% interests per year  (1000 * .05 = 50 => 1000 + 50 = 1050 dollars per year)
Thus the correct answer is Plan A will be worth more than plan B after two years.

The true statement is Plan A will be worth more than plan B after two years.

What is the worth of the plans with the passage of time?

The equation that can be used to represent the future value of plan A:

Total value = initial value x ($100 x number of years)

Value in 2 years: 1000 x (100 x 2) = $1200

Value in 3 years: 1000 x (100 x 3) = $1300

Value in 4 years: 1000 x (100 x 4) = $1400

The equation that can be used to represent the future value of plan B:

FV = P (1 + r)^n

  • FV = Future value
  • P = Present value
  • R = interest rate
  • N = number of years

  • Value in 2 years: 1000 x(1.05^2) = $1102.50
  • Value in 3 years: 1000 x(1.05^3) = 1157.63
  • Value in 4 years: 1000 x(1.05^2) = 1215.51

To learn more about future value, please check: brainly.com/question/18760477

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If t+8=-12 what's the value of t + 1

Answers

To find out what t + 1 is, we first must find out the value of t.
We know that t + 8 = -12, so all we need to do to solve for t is subtract 8 from both sides.

t + 8 = -12

t + 8 - 8 = -12 - 8

t = -20

So now that we know the value of t, all we need to do to find t + 1 is insert the value of t into the variable and solve.

t + 1 = ?

-20 + 1 = ?

-19

And there we have it.
t + 1 = -19
Hope that helped! =)
the reason it gives us t + 8 = -12 is because they want us to figure out what t is. this is very simple trust me:) given our problem.
t + 8 = -12 what we have have to do here is isolate t alone. lets subtract 8 from both sides.
t + 8 = -12 
   - 8 = - 8     the 8 on the left hand side of the equal side is canceled out! and  we have to subtract 8 from -12. lets do the math:)
-12 - 8 = -20 well lets see what we have left of our problem.
t = -20
hey we have our answer we know that t = -20
but the question is asking us to find the value of t + 1 
well lets plug -20 for t
-20 + 1 = -19 since we are adding 1 it moves plus 1 towards the number zero.
so whats the answer? you may be asking..
-19
have a good one :)

merry christmas:D

4. Mr. Ramos notices a pattern in the number of people attending the weekly students governing. For weeks 1,2,3,4, and 5, the number of students attending the meetings was 31, 43, 55, 67, and 79, respectively. Write an explicit equations that models the pattern Mr. Ramos notices

Answers

s=12x+19, where s is equal to the number of students attending and x is equal to the week number.

The slope of the graph of y = x is

Answers

Hello,
y=1*x
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=================

Which of the following are steps in the process in solving application problems using the two-order system? Assign two variables for the unknowns.

Make a guess for the value of the variables.

Write two equations using the assigned variables.

Make another guess, based on the results of the first guess. Solve the pair of equations.

Answers

Answer:

Options A, C and E are correct.

Step-by-step explanation:

a. Assign two variables for the unknowns.- Firstly we read the problem and then assign values like (x and y) to the unknown entities.

c. Write two equations using the assigned variables. - After the first step, we get few equations to be solved. These equations are based on the assigned values from step 1.

e. Solve the pair of equations. - Finally we solve these equations to get the variable values.

Answer:


Step-by-step explanation:

Assign two variables for the unknowns.

Write two equations using the assigned variables.

Solve the pair of equations.

A hallway is 9 yards how long is the inches in the hallway

Answers

1 yard=36 inches
9 times 1=9
multiply both sides by 9
9 times 1 yard=9 times 36 inches
9 yard=324 inches
Hello!  To find out how many inched the hallway is, you first need to know how many inches are in a yard.  You need to find the operation that will be needed for this problem, and I'm assuming you don't know, what you want to do is ask yourself,"What am I trying to find?  Wold this best be accomplished with subtraction or division, or multiplication or addition?  Am I looking for what the difference between two, or how many items are needed for even groups?  Do I want to find out how long something will be when added to something else, or multiplied?  

I hoped this helped!  If you have any further questions pertaining to this problem, feel free to shoot me a message or another question!  Good luck :)
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