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3 years ago

The parabola whose equation is y^2 = 12x has directrix

2 answers:

7 0

Answer:X=-3 is your answer plz like it and I will continue to do my best at answering these and helping others out so they can pass.

kakasveta [241]3 years ago

6 0

You can use the vertex form, y = a(x - h)^2 +k, to find the directrix.

The directrix is a fixed line associated with a parabola.

In this case, the directrix is x = -3

:)))

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Sofia's batting average is 0.022 higher than Joud's batting average. Joud has a batting average of 0.169

IgorLugansk [536]

Answer:

0.191

Step-by-step explanation:

S = Sofia's batting average

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S=?

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3 years ago

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Lilit [14]

Answer:

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3 years ago

use the fact that 10^3 = 2^10 to mentally find a vaule of n for which 2^n > 10^50 & 10^n > 2^300

Rudiy27

$2^n>10^{50}=10^{3\cdot16+2}=10^2(10^3)^{16}=10^2(2^{10})^{16}=5^22^{162}$
$2^{n-162}>25$

The least power of 2 that exceeds 25 is $2^5=32$ , so we have

$2^{n-162}=2^N>25\implies N=5\implies n-162=5\implies n=167$

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$10^n>2^{300}=(2^{10})^{30}=(10^3)^{30}=10^{90}$

The least integer $n$ that satisfies this inequality would clearly be $n=91$ .

6 0

3 years ago

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ivann1987 [24]

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3 years ago

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A six meter long ladder leans against a building. If the ladder makes an angle of 60° with the ground. How far up the wall does

jenyasd209 [6]

Step-by-step explanation:

step 1. This is a 30-60-90 triangle where the side opposite the 30° is the smallest and represented as x, the side opposite the 60 ° is the middle length at x(sqrt(3)) and the side opposite the 90° is the longest side at 2x. note: sqrt is the square root.

step 2. The ladder is 6m and is the 2x side.

step 3. The wall is across from the 60° side and is the x side.

step 4. if the 2x side is 6m then the x side is 3m.

step 5. The ladder is 3m up the side of the house.

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3 years ago