(4.18 × 10 -⁴) × (9 × 10 -⁴)

Mathematics

1 answer:

Alinara [238K]3 years ago

3 0

Answer:

Use a scientific notation

Step-by-step explanation:

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EASYY TO ANSWER I WILL MARK YOU AS BRILIANT HELP PLEASE

BARSIC [14]

Question 1: (0,2) because b value in mx+b is y-intercept

Question 2: plug in 4 for x you will get 1 so max is (4, 1)

Question 3: plug in -4 for x you will get -5 so min is (-4, -5)

Hope it helps :D

7 0

3 years ago

Find the exact value of tan (arcsin (two fifths)). For full credit, explain your reasoning.

Hitman42 [59]

$\bf sin^{-1}(some\ value)=\theta \impliedby \textit{this simply means}
\\\\\\
sin(\theta )=some\ value\qquad \textit{now, also bear in mind that}
\\\\\\
sin(\theta)=\cfrac{opposite}{hypotenuse}\qquad 
\qquad 
% tangent
tan(\theta)=\cfrac{opposite}{adjacent}\\\\
-------------------------------\\\\$

$\bf sin^{-1}\left( \frac{2}{5} \right)=\theta \impliedby \textit{this simply means that}
\\\\\\
sin(\theta )=\cfrac{2}{5}\cfrac{\leftarrow opposite}{\leftarrow hypotenuse}\qquad \textit{now let's find the adjacent side}
\\\\\\
\textit{using the pythagorean theorem}\\\\
c^2=a^2+b^2\implies \pm\sqrt{c^2-b^2}=a\qquad 
\begin{cases}
c=hypotenuse\\
a=adjacent\\
b=opposite\\
\end{cases}$

$\bf \pm \sqrt{5^2-2^2}=a\implies \pm\sqrt{21}=a
\\\\\\
\textit{we don't know if it's +/-, so we'll assume is the + one}\quad \sqrt{21}=a\\\\
-------------------------------\\\\
tan(\theta)=\cfrac{opposite}{adjacent}\qquad \qquad tan(\theta)=\cfrac{2}{\sqrt{21}}
\\\\\\
\textit{and now, let's rationalize the denominator}
\\\\\\
\cfrac{2}{\sqrt{21}}\cdot \cfrac{\sqrt{21}}{\sqrt{21}}\implies \cfrac{2\sqrt{21}}{(\sqrt{21})^2}\implies \cfrac{2\sqrt{21}}{21}
$

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3 years ago

Witch 2 numbers are 4 units away from zero on a number line

Liula [17]

Answer:

it depends which way youre going, but 4 and -4 work.

Step-by-step explanation:

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2 years ago

If you have 3/4 cup of flour how many eigths do you have

Nina [5.8K]

Your answer to the problem is 6/8

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2 years ago

HELP PLSSS IM STARTING SCHOOL AND DODNT FINISH MY HW!!

Tems11 [23]

Answer:

(2,3.5)

Step-by-step explanation:

B=(1,2)

A=(3,5)

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3 years ago

(4.18 × 10 -⁴) × (9 × 10 -⁴)​

(4.18 × 10 -⁴) × (9 × 10 -⁴)