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
ICE Princess25 [194]
3 years ago
12

The value of y varies directly with x2, and y = 64 when x = 4. What is the value of y when x = 6?

Mathematics
1 answer:
fenix001 [56]3 years ago
3 0
The value of y = 144
You might be interested in
What equation results from completing the squre and then factoring x^2+10=15
nlexa [21]

For this case we must complete squares:

x ^ 2 + 10x = 15

We add the square of half the coefficient of the term "x",

(\frac {b} {2a}) ^ 2 on both sides of the equation:

x^2+10x+(\frac {10} {2 (1)}) ^ 2 = 25 + 15\\x ^ 2 + 10x + 5 ^ 2 = 25 + 15

According to the perfect square trinomial we have:

(a + b) ^ 2 = a ^2 + 2ab + b ^ 2

Rewriting the expression we have:

a = x\\b = 5\\(x + 5) ^ 2 = 25 + 15\\(x + 5) ^ 2 = 40

ANswer:

(x + 5) ^ 2 = 40

6 0
3 years ago
5√28+ √63<br> please simplify no exponents please
zaharov [31]

Answer:

34.3948

Step-by-step explanation:

5\sqrt{28} +\sqrt{63} = 13\sqrt{7} = 34.3948

3 0
3 years ago
Read 2 more answers
A television at Walmart cost $1,538 and $1,923 at Target. With taxes, what would you actually pay at each store. Walmart sales t
mamaluj [8]

Answer:

walmart:1645.66 target:2096.07

Step-by-step explanation:

walmart:1538/100 × 107= 1645.66

target:1923/100 × 109= 2096.07

i think this is the ans but im not very sure

8 0
2 years ago
How many cubic inches are in a cubic foot Use a sketch to explain your reasoning
sweet-ann [11.9K]
There are 1728 cubic inches in a cubic foot... not sure bout the sketch part. 
6 0
3 years ago
Researchers have concluded that a dry basin began to fill with water in 1880. the water level rose an average of 1.6 millimeters
docker41 [41]

Answer:

  1. the domain is [0,129]
  2. 112 mm
  3. 1942

Step-by-step explanation:

1. The function is good for years 1880 to 2009, 0 to 129 years after 1880. Values of x can be anything in the domain [0, 129].

__

2. 1950 -1880 = 70. The year 1950 corresponds to x=70, so the function tells us the water level rose ...

  f(70) = 1.6·70 = 112 . . . . . mm

__

3. We want to find x when f(x) = 100. That will be the solution to ...

  100 = 1.6x

  100/1.6 = x = 62.5

Then 62.5 years after 1880 is year 1942.5. The water level was 100 mm higher than in 1880 in the year 1942.

3 0
2 years ago
Other questions:
  • From the ten books that you've recently bought but not read, you plan to take four with you on vacation. How many different sets
    12·1 answer
  • Alice bought a new cell phone. The cell phone company she bought the phone from charges $50 per month for cell phone service, $2
    8·1 answer
  • Help me PLS!!!! &lt;3
    12·1 answer
  • Whats twenty five times eighty​
    10·2 answers
  • Sam Sounds received a $290 discount loan to purchase a stereo. The loan was offered at 16% for 90 days. Find the interest in dol
    8·2 answers
  • What does -4.2-(-2.9)= equal
    12·2 answers
  • At a store, the price per pound of heart candies (h) is 30 cents more than three times the price per pound of jelly beans (j). T
    5·1 answer
  • Find the sum of 3876, 9828 and 5030
    15·2 answers
  • HELP ME PLZ <br> m + 3 &gt;= 14 then complete the inequality m-6 &gt;
    7·1 answer
  • 12n²-4mn<br> factorise completely
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!