There are 5 solutions for this system.
x^2 + 4y^2 = 100 ____1
4y - x^2 = -20 ____2
Add both 1 & 2 together. x^2 gets cancelled
4y^2 + 4y = 80 (send 80 to the other side and divide by 4)
Then equation the becomes : y^2 + y -20 =0
Now factorise the equation: (y+5) (y-4) = 0
Solve for y : y = -5 and y = 4
Using the values of y to find the values of x. From equation 1:
x^2 = 100 - 4y^2 x = /100 - 4y^2 (/ means square root) Replace values of y
y = -5, x = /100 - 4(-5)^2 = /100 - 100 = 0
y = 4, x = /100 - 4(4)^2 = / 100 - 64 = /36 = -6 or 6
Thus we have 6 solutions y = -5, 4 and x = -6, 0, 6
Answer:
1.) 434 ____________
2.)5658 ____________
3.) 8374 ____________
4.) 361 ____________
5.) 7454 ____________
ito po ba ang i raround off
Step-by-step explanation:
answer:
1. 400
2.5000
3.8000
4.400
5.7000
kung ito po
#HOPE ITS HELP
Answer: A. y = 16 x
B. 8 days
Step-by-step explanation:
A) Here, 16 Fluid ounces of milk is used for breakfast every morning.
In one day the consumption of milk = 16 fluid ounces
In x days the consumption of milk = 16 x fluid ounces
Thus, if y be the total milk in ounces that is used in x days,
The required function,
y = 16 x
B) In 1 day, consumption of milk = 16 ounces
⇒ 
⇒ 
⇒ 
Since, 128 ounces = 1 gallon
⇒ 
In 8 days, 1 gallon of milk will consumed.
Answer:
Some rational numbers are natural numbers
All whole numbers are integers
Some integers are natural numbers.
Step-by-step explanation:
Answer:
1 is what percent of 52.6? = 1.9011406844106.
Step-by-step explanation:
urm google it that is what i did
