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3 years ago

36. Factorize x-12x + 20

Mathematics

2 answers:

Yuri [45]3 years ago

7 0

Hope this helps! feel free to clarify

m_a_m_a [10]3 years ago

6 0

Answer:

${ \tt{ {x} - 12x + 20}} \\{ \tt{ =-11x + 20 }}$

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$21 x 1.11 = $23.31

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2 years ago

A line passes through the point (4 , 2) and has a slope of 5/4

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3 years ago

How do you solve the problem 6-3x=-2x

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3 years ago

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3 years ago

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A Cepheid variable star is a star whose brightness alternately increases and decreases. For a certain star, the interval between

sattari [20]

Answer:

$B'(t) = \dfrac{0.9\pi}{4.4}\cos\bigg(\dfrac{2\pi t}{4.4}\bigg)$

b) 0.09

Step-by-step explanation:

We are given the following in the question:

$B(t) = 4.2 +0.45\sin\bigg(\dfrac{2\pi t}{4.4}\bigg)$

where B(t) gives the brightness of the star at time t, where t is measured in days.

a) rate of change of the brightness after t days.

$B(t) = 4.2 +0.45\sin\bigg(\dfrac{2\pi t}{4.4}\bigg)\\\\B'(t) = 0.45\cos\bigg(\dfrac{2\pi t}{4.4}\bigg)\times \dfrac{2\pi}{4.4}\\\\B'(t) = \dfrac{0.9\pi}{4.4}\cos\bigg(\dfrac{2\pi t}{4.4}\bigg)$

b) rate of increase after one day.

We put t = 1

$B'(t) = \dfrac{0.9\pi}{4.4}\cos\bigg(\dfrac{2\pi t}{4.4}\bigg)\\\\B'(1) = \dfrac{0.9\pi}{4.4}\bigg(\cos(\dfrac{2\pi (1)}{4.4}\bigg)\\\\B'(t) = 0.09145\\B'(t) \approx 0.09$

The rate of increase after 1 day is 0.09

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3 years ago

36. Factorize x-12x + 20​

36. Factorize x-12x + 20