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
avanturin [10]
3 years ago
11

Will give brainliest!  pts to the correct answer! Are quadratic equations already in rectangular form? I'm asked to eliminate th

e parameter t from these two questions to get it into the rectangular equation with x and y. Is it possible?
x(t) = 0.5t^2+0.4t-87.30
y(t)= 0.4t^2+0.1t +29.44
Mathematics
1 answer:
Semmy [17]3 years ago
4 0
\bf x(t)=0.5t^2+0.4t-87.30\implies x(t)=\cfrac{1}{2}t^2+\cfrac{2}{5}t-\cfrac{873}{10}
\\\\\\
x=\cfrac{1}{2}\left( t^2+\cfrac{4}{5}t+\boxed{?}^2 \right)-\cfrac{873}{10}

so, as you already know, we'll borrow from our good friend Mr Zero, 0, to get that missing value for the perfect square trinomial,

\bf x=\cfrac{1}{2}\left[ t^2+\cfrac{4}{5}t+\left( \cfrac{2}{5} \right)^2-\left( \cfrac{2}{5} \right)^2 \right]-\cfrac{873}{10}
\\\\\\
x=\cfrac{1}{2}\left[t^2+\cfrac{4}{5}t+\cfrac{4}{25}-\cfrac{4}{25}  \right]-\cfrac{873}{10}
\\\\\\
x=\cfrac{1}{2}\left[t^2+\cfrac{4}{5}t+\left( \cfrac{2}{5} \right)^2\right]-\cfrac{2}{25}-\cfrac{873}{10}
\\\\\\
x=\cfrac{1}{2}\left[t^2+\cfrac{4}{5}t+\left( \cfrac{2}{5} \right)^2\right]-\cfrac{4369}{50}

\bf x=\cfrac{1}{2}\left( t+\frac{2}{5} \right)^2-\cfrac{4369}{50}\implies x+\cfrac{4369}{50}=\cfrac{1}{2}\left( t+\frac{2}{5} \right)^2
\\\\\\
2x+\cfrac{4369}{25}=\left( t+\frac{2}{5} \right)^2\implies \sqrt{2x+\cfrac{4369}{25}}=t+\cfrac{2}{5}
\\\\\\
\sqrt{2x+\cfrac{4369}{25}}-\cfrac{2}{5}=t

\bf -------------------------------\\\\
y(t)=0.4t^2+0.1t+29.44\implies y=\cfrac{2}{5}t^2+\cfrac{1}{10}t+\cfrac{736}{25}
\\\\\\
y=\cfrac{2}{5}\left( \sqrt{2x+\cfrac{4369}{25}}-\cfrac{2}{5} \right)^2+\cfrac{1}{10}\left( \sqrt{2x+\cfrac{4369}{25}}-\cfrac{2}{5} \right)+\cfrac{736}{25}
You might be interested in
Reflex angle 60degree
Natalija [7]
120 degrees is the answer
3 0
3 years ago
Tell me if I’m right
insens350 [35]

Answer:

yesssirrr

Step-by-step explanation:

8 0
2 years ago
Help me please.....,,,,,,,,,,,,
attashe74 [19]

Answer:

It has to be a positive number.

Step-by-step explanation:


7 0
3 years ago
Read 2 more answers
This net will be folded to form a prism. A net of a rectangular prism. From top to bottom, the rectangles are labeled B, D, E, F
Oksi-84 [34.3K]

Answer:

D and F

A and C

B and E

Step-by-step explanation:

due to the fact that it is a rectangle prism, and the A is on the left  and  C is on the right, the other alphabet  B,D,E F is straight down, you have to fold the d and f first, then A and C and lastly B and E to form the prism

5 0
3 years ago
Is the sequence geometric if so identify the common ratio 1/3, 2/9, 4/27, 8/81, 16/243
docker41 [41]
Yes it is a geometric sequence and the common ratio is 2/3
3 0
2 years ago
Read 2 more answers
Other questions:
  • What is the estimate of 324+285
    10·2 answers
  • Morty buys and sells computer parts he bought two monitors for $25 each and later sold them for 88 each he bought four cases for
    6·1 answer
  • Draining a half cylinder tank. A trough is shaped like a half cylinder with length 5 m and radius 1 m. the tank is full of water
    10·1 answer
  • In th fig , d is the mid point of ab and cd is perpendicular to ab. prove abc is congurence to bcd.​
    15·1 answer
  • An ice cream factory makes 68.8 quarts of ice cream
    15·1 answer
  • What is the distance between -24 and -16.5 on a number line?
    10·2 answers
  • The largest pyramid in Egypt, built almost 5,000 years ago, covers an area of about 63,300 square yards. Find the length of each
    13·1 answer
  • A random sample selected from an infinite population is a sample selected such that each element selected comes from the same __
    12·1 answer
  • 4. Solve the following system of equations for x.
    6·1 answer
  • Moesha needs $79 for a class trip. She already has $22 and she can earn the rest by babysitting for 8 hours. If h represents her
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!