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Vikentia [17]
2 years ago
15

Ared candle is 8 inches tall and burns at a rate of inch per hour. 1 A blue candle is 6 inches tall and burns at a rate of inch

per hour. 5 After how many hours will both candles be the same height? Enter your answer in the box.​
Mathematics
1 answer:
qwelly [4]2 years ago
6 0

Answer:

After 8 hrs both candles would've burned out completely, so they'll, more or less, be at the same height.

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Find the intersection points using substitution or elimination for each system of equations:
natka813 [3]

Answer:

Step-by-step explanation:

Okay, so I think I know what the equations are, but I might have misinterpreted them because of the syntax- I think when you ask a question you can use the symbols tool to input it in a more clear way, otherwise you can use parentheses and such.

Problem 1:

(x²)/4 +y²= 1

y= x+1

*substitute for y*

Now we have a one-variable equation we can solve-

x²/4 + (x+1)² = 1

x²/4 + (x+1)(x+1)= 1

x²/4 + x²+2x+1= 1

*subtract 1 from both sides to set equal to 0*

x²/4 +x^2+2x=0

x²/4 can also be 1/4 * x²

1/4 * x² +1*x² +2x = 0

*combine like terms*

5/4 * x^2+2x+ 0 =0

now, you can use the quadratic equation to solve for x

a= 5/4

b= 2

c=0

the syntax on this will be rough, but I'll do my best...

x= (-b ± √(b²-4ac))/(2a)

x= (-2 ±√(2²-4*(5/4)*(0))/(2*(5/4))

x= (-2 ±√(4-0))/(2.5)

x= (-2±2)/2.5

x will have 2 answers because of ±

x= 0 or x= 1.6

now plug that back into one of the equations and solve.

y= 0+1 = 1

y= 1.6+1= 2.6

Hopefully this explanation was enough to help you solve problem 2.

Problem 2:

x² + y² -16y +39= 0

y²- x² -9= 0

6 0
3 years ago
Find the unknown angle in tye guven figure with reason​
Sunny_sXe [5.5K]

Step-by-step explanation:

the opposite angles are always same.

8 0
3 years ago
Select all the properties of a kite.
drek231 [11]

Answer:

  • B.

Step-by-step explanation:

<u>Here are the Options verified:</u>

  • A. Incorrect. Kites can't be parallelograms.
  • B. Correct. Kites are quads. Quads have 4 sides. A kite has 4 sides.
  • C. Incorrect. They don't have opposite sides that are congruent.

<u>Correct choice is B.</u>

5 0
2 years ago
Read 2 more answers
A school goes through 10 gallons of milk in 3 days.
Akimi4 [234]
G = gallons     d = days
10g = 3d
?g = 1d
1g = ?d
-------------
for gallons in a day, divide 10g = 3d by 3
d = 10/3 gallons
3 and 1/3 gallons in a day
---------------
for days per gallon, divide 10g = 3d by 10
g = 3/10 days
1 gallon lasts 3/10 of a day
3 0
3 years ago
Alvin is 15 years younger than Elga. The sum of their ages is 25. What is Elga’s age
Fynjy0 [20]
Elga is 20 years old and Alvin would be 5. Hope this helped.
4 0
3 years ago
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