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3 years ago

How many vertices AND faces does this shape have? (NO LINKS)

Mathematics

2 answers:

sleet_krkn [62]3 years ago

8 0

Answer:

It's a pyramid, therefore it must have 5 vertices

Hope this helps! Let me know if I am wrong

Step2247 [10]3 years ago

6 0

It has 5 vertices since it’s a pyaramid

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A pilot is traveling at a height of 30,000 feet above ground she looks down at a angle of depression of 6 and spots runway as me

sukhopar [10]

Distance between runway and pilot position along the ground is 285430.9336 feet that is 53.9464 miles.

<h3><u>Solution:</u></h3>

Given that

Height of position of pilot from the ground = 30000 feet

Angle of depression when he looks down at runway = 6o

Need to measure along the ground, distance between runway and pilot that is horizontal distance between runway and pilot.

Consider the figure attached below

D represents position of runway.

P represents position of pilot.

PG represents height of position of pilot from the ground that means PG = 30000 feet

PH is virtual horizontal line and HPD is angle of depression means ∠ HPD = 6 degree

AS DG and HP are horizontals, so DG is parallel to HP.

=> ∠ HPD =∠ PDG = 6 degree [ Alternate interior angle made by transversal PD of two parallel lines ]

We need to calculate DG

Consider right angles triangle PGD right angles at G

$\text {As } \tan x=\frac{\text { Perpendicular }}{\text { Base }}$

$\tan \angle \mathrm{PDG}=\frac{\mathrm{PG}}{\mathrm{GD}}$

$\begin{array}{l}{=>\mathrm{GD}=\frac{\mathrm{PG}}{\tan \angle \mathrm{PDG}}} \\\\ {=>\mathrm{GD}=\frac{30000}{\tan 6^{\circ}}=285430.9336}\end{array}$

As one foot = 0.000189 miles

$=>285430.9336 \text { feet }=285430.9336 \times 0.000189 \text { miles }=53.9464 \text { miles. }$

Hence distance between runway and pilot position along the ground is 285430.9336 feet that is 53.9464 miles.

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3 years ago

If a and b are non-negative integers, is ab prime?

andrew-mc [135]

No because ab can be divided by a and b.

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4 years ago

Assume that y varies directly with x. If y=1/4 when x=1/8, find x when y=3/16. Enter in any fractions using a / (e.g. "1/2" is t

wariber [46]

Answer:

3/32

Step-by-step explanation:

Whatever you do to y always happens to x right? I'm REALLY new to this question so i'm not really sure so wait for more responses if needed.

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3 years ago

Please answer them alll 50 points

rodikova [14]

Answer:

1. slope -9

y-int (0, 3)

2. slope 5

y-int (0, -7)

we don't have the tables

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3 years ago

Identify the coefficient(s), constants, and number of terms for the following expression:

Talja [164]

The given expression is: $3 x^{2} -7x+2$

There are 3 terms in this expressions:
1) $3 x^{2}$
2) $-7x$
3) 2

The coefficient of $3 x^{2}$ is 3.
The coefficient of $-7x$ is -7.
The constant term is 2.

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3 years ago