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
Gelneren [198K]
3 years ago
15

If Y is directly proportional to X² and y=21 when x=2, find the value of y when X=4.

Mathematics
2 answers:
kykrilka [37]3 years ago
8 0

Step-by-step explanation:

it means y/x^2=k

when y=21, x=2; k is 21/4.

when x=4, k is y/16.

k=21/4=y/16.

the next step is easy to see, you can do it.

frozen [14]3 years ago
7 0
The value of y will probably be 4.
You might be interested in
Which translation transformed the parent function, f(x), to g(x)?
icang [17]

Answer:

A. A translation right 2 units:

We know that given f(x), the function g(x) = f(x+m), is the same function f(x) but shifted m units to the left. In that sense, a translation right 2 units would be:

g(x) = f(x-2).

B. A translation left 2 units:

We know that given f(x), the function g(x) = f(x+m), is the same function f(x) but shifted m units to the left. In that sense, a translation left 2 units would be:

g(x) = f(x+2).

C. A translation up 2 units:

We know that given f(x), the function g(x) = f(x) + m, is the same function f(x) but shifted m units up. In that sense, a translation up 2 units would be:

g(x) = f(x) + 2

D. A translation down 2 units:

We know that given f(x), the function g(x) = f(x) + m, is the same function f(x) but shifted m units up. In that sense, a translation down 2 units would be:

g(x) = f(x) - 2

5 0
4 years ago
Read 2 more answers
Draw and label ray RT
Keith_Richards [23]
You need a picture to lable and draw it so we can awnser your question
6 0
3 years ago
What is the measure of EBG?
Mars2501 [29]

Answer:

Easy. 41+32= 73 degrees

Step-by-step explanation:

4 0
3 years ago
4/15 + 7/9 whats the sum
JulijaS [17]

Answer:

Step-by-step explanation:

54/45 = 1 9/45 = 1 1/5

which is one and one fifth

7 0
4 years ago
Read 2 more answers
Please help solve this
Julli [10]

Answer:

x=283 and the abc is 2929

Step-by-step explanation:

cuz its right

6 0
2 years ago
Other questions:
  • Through: (-1,-5), slope=3
    11·1 answer
  • Select all the correct answers.
    5·1 answer
  • Jordan has $10.00. If each drawing pen costs $1.49, how many can he buy?
    7·2 answers
  • A machine used to fill gallon-sized paint cans is regulated so that the amount of paint dispensed has a mean of 125 ounces and a
    12·1 answer
  • Help with this measurement question pls
    6·2 answers
  • At a pie eating contest johnny ate 8 pies in 5 mins how long did johnny spend on each pie
    13·1 answer
  • Need help on 28 please
    6·1 answer
  • A salesperson is hired with a commission structure that allows for a 5% commission payment. This can be modeled by the function
    12·1 answer
  • Can you please solve and explain how
    8·2 answers
  • ..........................help me pls?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!