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kupik [55]
3 years ago
9

Answer for B and C and explanation if possible

Mathematics
2 answers:
Viefleur [7K]3 years ago
8 0
A.  7x5=35 you multiply 7 and 5
C.  5x1=5 you multiply the path and the
 metre
sesenic [268]3 years ago
5 0
B) The area of the garden and path is:

8 x 6 = 48


C) the area of just the path is:

48 - 35 = 13
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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

\rm \longmapsto z = c\cos \alpha

Therefore:

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

\rm \longmapsto \dfrac{y}{b}  = \sin \alpha  \sin \beta

\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

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

\rm = 1

<u>Therefore:</u>

\rm \longmapsto\dfrac{ {x}^{2} }{ {a}^{2}} +  \dfrac{ {y}^{2} }{ {b}^{2} } +  \dfrac{ {z}^{2} }{ {c}^{2} }  = 1

5 0
3 years ago
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Naya [18.7K]
When you divide 98 by 5194, you get 0.01886 to be almost exact
6 0
3 years ago
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Answer:

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Step-by-step explanation:

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3 years ago
A triangular prism has a volume of 2500 cubic feet. What is the length of the prism if its triangular bases are right triangles,
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Answer:

25 ft

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V = bh/2 × H

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2 years ago
Is 0.45 equal to 4/10
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No, \frac{4}{10} equals to 0.4

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