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
nexus9112 [7]
3 years ago
13

Landon is standing in a hole that is 5.1 ft deep. He throws a rock, and it goes up into the air, out of the hole, and then lands

on the ground above. The path of the rock can be modeled by the equation y = -0.005x2 + 0.41x - 5.1, where x is the horizontal distance of the rock, in feet, from Landon and y is the height, in feet, of the rock above the ground. How far horizontally from Landon will the rock land?
Mathematics
1 answer:
kati45 [8]3 years ago
6 0
This describes a parabolic path that starts at x=0 on a value of y = -5.1.  That's when the rock is below ground in the hole.  To find the answer we need to know the second x axis crossing.  The first is when it is rising and reaches ground level, the second is after it peaks and falls back to the ground and lands. Using the quadratic formula I get the two zeros of this function to be about
x= 15.29, and 66.71.  The rock then lands 66.71 feet from him horizontally.
You might be interested in
3. Is this an arithmetic or a geometric sequence? 5, 10, 15, 20, 25, ...
VikaD [51]

Answer:

arithmetric

Step-by-step explanation:

the difference is so simple

3 0
3 years ago
Read 2 more answers
I WILL GIVE U A CROWN.......
steposvetlana [31]
<h3>Answer: Likely it's choice D) </h3>

See below for the explanation why

========================================================

down payment = 22% of home value

down payment = 22% of $426,000

down payment = 0.22*426,000

down payment = 93,720 dollars

The remaining amount mortgaged (i.e. loaned out) is

home value - (down payment) = 426,000 - 93,720 = 332,280

----------------

The monthly payment formula is

P = (L*i)/(1 - (1+i)^(-n))

where,

  • P = monthly payment
  • L = amount loaned
  • i = monthly interest rate in decimal form
  • n = number of months

In this case,

  • L = 332,280 dollars
  • i = 0.0525/12 = 0.004375 which is exact without any rounding
  • n = 20*12 = 240 months (equivalent to 20 years)

Plugging those three values into the formula mentioned gets us the following:

P = (L*i)/(1 - (1+i)^(-n))

P = (332,280*0.004375)/(1 - (1+0.004375)^(-240))

P = 2,239.0493959316

P = 2,239.05

Multiply this monthly payment by the 240 months mentioned.

2,239.05*240 = 537,372

This is the total amount paid back (principal + interest)

Add on the down payment to find out how much money total is handed over:  537,372 + 93,720 = 631,092

Unfortunately $631,092 is not listed as one of the answer choices. The closest would be D) $631,057

I'm not sure if I made a rounding error somewhere, or perhaps your teacher is using an amortization table. It's also possible your teacher made a typo somewhere. I'd ask them for clarification.  

5 0
1 year ago
What is the solution for this system of linear equations?<br> {23x+4=y<br> 4−2x=y
liubo4ka [24]
We can subsitute since
23x+4=y and
4-2x=y
therefor
23x+4=y=4-2x
so
23x+4=4-2x
minus 4 on both sides
23x=-2x
add 2x to both sides
25x=0
divide both sides by... uh oh
I guess x=0

sub
4-2(0)=y
4-0=y
4=y

the solution is (0,4)
3 0
3 years ago
What are the possible values of x if (4x-5)2=49? Check all that apply.
Mars2501 [29]
The answer is x = 59/8
8 0
3 years ago
Read 2 more answers
What is the first step to follow before working on the Power Steering system of a hybrid? A. Disconnect the Battery B. Disable t
SVETLANKA909090 [29]
Primary concern when working<span> on a gas-electric </span>hybrid<span> drive train is the extremely </span>high voltage<span> and current stored  items, such as the </span>power steering<span> pump or the </span>air<span> condi-engine. Transmission.</span>Battery<span> pack. Power control module. Motor- generator  armature pole </span>C<span>. </span>B<span>—Three-phase alternating current is simply.</span>
5 0
3 years ago
Other questions:
  • A company is offering to pay a stadium $750,000 per year for naming rights. If the administrative costs for this sponsorship are
    6·1 answer
  • Does (3,6) is a solution to the promblem y&lt;3x-2
    15·2 answers
  • Paula completely covered a square wall using 87.5 ft2 of wallpaper without any overlap. Which measurement is closest to the side
    9·2 answers
  • 12% of what number is 36
    15·2 answers
  • The price of a pair of shoes increases from $55 to $77. What is the percent increase to the nearest percent?
    13·1 answer
  • Please give me the answer for the attachment given below.
    10·1 answer
  • Solve the following equation. 14 + (2x + 7) = 9x x=​
    15·1 answer
  • Hello free plonts have a good day
    7·2 answers
  • I need help finding this missing angle
    7·1 answer
  • Find the product. 6,372 x 75
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!