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2 years ago

What is the product of 10.04 and 2.8

Mathematics

2 answers:

natima [27]2 years ago

7 0

The product of two numbers is the result of multiplication.

so 10.04 • 2.8

= 28.112

zzz [600]2 years ago

7 0

28.11200 is the product of 10.04 and 2.8

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Oliga [24]

The line to find: y = mx + b
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3 years ago

If x = a sin α, cos β, y = b sin α.sin β and z = c cos α then (x²/a²) + (y²/b²) + (z²/c²) = ?

Oduvanchick [21]

$\large\underline{\sf{Solution-}}$

<u>Given:</u>

$\rm \longmapsto x = a \sin \alpha \cos \beta$

$\rm \longmapsto y = b \sin \alpha \sin \beta$

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$\rm \longmapsto \dfrac{x}{a} = \sin \alpha \cos \beta$

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$\rm \longmapsto \dfrac{z}{c} = \cos \alpha$

Now:

$\rm = \dfrac{ {x}^{2} }{ {a}^{2}} + \dfrac{ {y}^{2} }{ {b}^{2} } + \dfrac{ {z}^{2} }{ {c}^{2} }$

$\rm = { \sin}^{2} \alpha \cos^{2} \beta + { \sin}^{2} \alpha \sin^{2} \beta + { \cos}^{2} \alpha$

$\rm = { \sin}^{2} \alpha (\cos^{2} \beta + \sin^{2} \beta )+ { \cos}^{2} \alpha$

$\rm = { \sin}^{2} \alpha \cdot1+ { \cos}^{2} \alpha$

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$\rm = 1$

<u>Therefore:</u>

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2 years ago

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2 years ago

If you have $100 and then lose $25 what is the percent change

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$\huge{\textbf{\textsf{{\color{pink}{An}}{\red{sw}}{\orange{er}} {\color{yellow}{:}}}}}$

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Thanks
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2 years ago