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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.

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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Is a linear model or a quadratic model a better fit?

ValentinkaMS [17]

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linear model

Step-by-step explanation:

linear graph will produce a straight line

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2 years ago

A Biycle wheel has a diameter of 52cm.

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2 years ago

Equation using the quadratic fromula for 0.05x^2 + 1.1x = 250

Anuta_ua [19.1K]

Answer:

x=60.56, x=-82.56

Step-by-step explanation:

Solve using quadratic formula

Formula is

$x=\frac{-b+-\sqrt{b^2-4ac}}{2a}$

0.05x^2 + 1.1x = 250

Subtract 250 on both sides

0.05x^2 + 1.1x - 250=0

a= 0.05, b=1.1 , c=-250

Plug in the values in the formula

$x=\frac{-1.1+-\sqrt{(1.1)^2-4(0.05)(-250)}}{2(0.05)}$

$x=\frac{-1.1+-7.156116265}{0.1}$

Now make two equations , one with + and one with -

then we solve for x

$x=\frac{-1.1+7.156116265}{0.1}$

x=60.56

$x=\frac{-1.1-7.156116265}{0.1}$

x=-82.56

3 0

3 years ago

Jefferson Park sits on one square city block that measures 300ft on each side. Sidewalks join opposite corners. About how long i

Alexxandr [17]

You have a 300 feet side length square and you need to calculate the length of the diagonal. When you split the square along one diagonal you get triangles, so you can apply Pythagoras' Theorem, with the hypotenuse as the needed diagonal.
a²+b²=c²
300²+300²=c²
2*300²=c²
√(2*300²)=c
√(2) * √(300²)=c
√(2) * 300=c
c~424.26 ft which is the solution/option c

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2 years ago

Write 3954 in expanded form using powers of 10

zavuch27 [327]

$3954=3\underbrace{954}_{\leftarrow3}=\boxed{3.954\cdot10^3}$

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3 years ago