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Rufina [12.5K]
3 years ago
5

To approach the runway, a pilot of a small plane must begin a 10 descent starting from a height of 1983 feet above the ground. T

o the nearest tenth of a mile, how many miles from the runway is the airplane at the start of this approach. . A. 2.2 mi. . B. 0.4 mi. . C. 11,419.6 m.
Mathematics
1 answer:
max2010maxim [7]3 years ago
3 0
Sin10 = 1790/d 

<span>d = 1983/(sin 10) </span>

<span>d = 11665 feet </span>

<span>Since there is 5,280 feet in one mile we have </span>

<span>11665/5280 = 2.2 miles </span>
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5.a.A tourist buys 5 pieces of Nepali cap at Rs 452 per piece including 13% VAT. How much will he recive while leaving Nepal?​
Natasha2012 [34]

Step-by-step explanation:

vat of a cap=13/100*452

=58.76

price after vat=58.76+452=510.76

price after vat of 5 cap = 510.76*5=2553.8

6 0
2 years ago
What is the vaule (x + y)(x + y)
Stolb23 [73]

Answer:

x^2+2xy+y^2

Step-by-step explanation:

(x + y)(x + y)

FOIL

first x*x = x^2

Outer x*y = xy

inner: y*x = xy

last y*y = y^2

add together

x^2+xy+xy+y^2

Combine like terms

x^2+2xy+y^2

6 0
3 years ago
Read 2 more answers
The fraction that's equivalent to 6/7. The sum of the numerator and the denominator is 78. What is the fraction?
a_sh-v [17]
6*6= 36
7*6- 42

36+42= 78. 

The fraction is 36/42.
8 0
3 years ago
Read 2 more answers
F(x)=−10x2−x and g(x)=−2x2−x, find (f−g)(x) and (f−g)(−2)
blondinia [14]

Answer:

(f - g)(x) = -8x²

(f - g)(2) = -32

General Formulas and Concepts:

<u>Algebra I</u>

  • Combining like terms

Step-by-step explanation:

<u>Step 1: Define</u>

f(x) = -10x² - x

g(x0 = -2x² - x

(f - g)(x) is f(x) - g(x)

(f - g)(2) is f(2) - g(2)

<u>Step 2: Find (f - g)(x)</u>

  1. Substitute:                    (f - g)(x) = -10x² - x - (-2x² - x)
  2. Distribute -1:                 (f - g)(x) = -10x² - x + 2x² + x
  3. Combine like terms:    (f - g)(x) = -8x²

<u>Step 3: Evaluate</u>

  1. Substitute:                    (f - g)(2) = -8(-2)²
  2. Evaluate:                       (f - g)(2) = -8(4)
  3. Multiply:                        (f - g)(2) = -32

And we have our answers!

7 0
3 years ago
Describe in words the region of R3 reperesented by the equations or inequalities y2+z2=16
Anastasy [175]

Answer:

It represents an infinite cylinder of radius 4.

Step-by-step explanation:

The first thing to notice is that

y^2+z^2=4^2

<u>represents a circle of radius 4</u>, with its center in the origin of a plane yz, of cartesians coordinates.

Starting from here, we have to put the coordinate x, for all values of x, to complete the space R³. <em>This will enlarge this circle we had on the plane, to infinity</em> (positive and negative on the x-axis).

Finally, we have that this region is a cylinder of radius 4, with center in y=0 and z=0, and of infinite length in the x coordinates.

5 0
3 years ago
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