Help me nowwwwwww 7 a b and 8

A large airplane (plane A) flying at 26,000 feet sights a smaller plane (plane B) travelling at an altitude of 24,000 feet. The

Delicious77 [7]

Answer:

The line of sight distance is 1285.58 feet.

Step-by-step explanation:

The situation is illustrated in the figure attached.

From the figure we see that the altitude difference of the planes and the distance between them form a right triangle with one angle of 40° .

The line of sight between the two planes is the hypotenuse of the triangle.

The altitude difference of the planes is

$26,000ft -24,000ft = 2000 ft.$

Therefore, if we call $x$ the line of sight distance, from trigonometry we have

$sin (40^0) = \frac{2000ft}{x}$

$\boxed{ x = 1285.58ft}$

Therefore, the line of sight distance (x) is 1285.58 feet.

5 0

3 years ago

I need help thank you!<br> (7x + 14)<br> (15x - 4)

sergey [27]

Answer:

(7x + 14)° = 84°

(15x - 4)° = 146°

Step-by-step explanation:

62° + (7x + 14)° = (15x - 4)°

62° +7x + 14 = 15x - 4

15x - 7x = 62 + 14 + 4

8x = 80

x = 10

Therefore, exterior angle (15x - 4)° = 146°

interior angle (7x + 14)° = 84°

8 0

3 years ago

Which expression is equal to 4/8

givi [52]

<h2>Fractions</h2>

Which expression is equal to $\large\tt \frac{4}{8}$ ?

Option 1

$\large \tt 4 \times \frac{1}{2} = \frac{4}{1} \times \frac{1}{2} = \red{\frac{4}{2}}$

Option 1 is not equal to $\large\tt \frac{4}{8}$

$\huge{\overline{\qquad\qquad\qquad\qquad \: \: \: }}$

Option 2

$\large \tt 3 \times \frac{1}{5} = \frac{3}{1} \times \frac{1}{5} = \red{\frac{3}{5}}$

Option 2 is not equal to $\large\tt \frac{4}{8}$

$\huge{\overline{\qquad\qquad\qquad\qquad \: \: \: }}$

Option 3

$\large \tt 3 \times \frac{1}{8} = \frac{3}{1} \times \frac{1}{8} = \red{\frac{3}{8}}$

Option 3 is not equal to $\large\tt \frac{4}{8}$

$\huge{\overline{\qquad\qquad\qquad\qquad \: \: \: }}$

Option 4

$\large \tt 4 \times \frac{1}{8} = \frac{4}{1} \times \frac{1}{8} = \green{\frac{4}{8}}$

Therefore, option 4 is equal to $\large\tt \frac{4}{8}$

$\huge{\overline{\qquad\qquad\qquad\qquad \: \: \: }}$

<h3>#CarryOnLearning</h3>

7 0

3 years ago

c) Solve the equation you wrote in part b to find how many hours you would have to work to pay for the first year of video strea

marta [7]

Parents will allow you to stream videos on your tablet if you agree to prepay the monthly bill. If the initial charge to set up an account is $50 and the monthly fee is $18, create a table that would represent the cost each month for the first year.
Every Month $68 $18 $18 $18 $18 $18 $18 $18 $18 $18 $18 $18
<span>Total For Year$68 $86 $104 $122 $140 $158 $176 $194 $212 $230 $248 $266 </span>

4 0

3 years ago

What is the measure of the inscribed angle ABC if the measure of the arc, which this angle intercepts is:

Margaret [11]

I believe the answer should be A

5 0

4 years ago