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jarptica [38.1K]
3 years ago
11

I actually put two questions here... please help!

Mathematics
1 answer:
Verdich [7]3 years ago
4 0
1) You know the height of the bird from the observer is the same as the height of the plane to tower. We also know that the angle of depression is same as the angle of elevation.

So we will use the tangent function to find the value of x.

tan 23 = 5000 / x
x = 5000 / tan 23
x = 11779 

You're answer will be 11779 feet

2) We will use the sine function.

sin 35 = 17,000 / x
x = 17,000 / sin 35
x = 29638.6

So the answer would be approximately 29639
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Bob purchase a bus pass card with 320 points,each weeks costs 20 points for unlimited bus rides
blagie [28]
It would be 20 points bcuz it says each week it costs 20 points for unlimited bus rides
8 0
3 years ago
Answer please!!!!!!!!!!!!!!!!!!
castortr0y [4]
The rule is "whatever the input is, multiply it by 5, then subtract 2"

For example, if the input is 4 then 4*5 = 20 and 20-2 = 18
So in short, the input 4 leads to the output 18 as shown in the top row of the diagram. 

The answer is the box on the bottom row, right hand side where it says "x 5"  and "-2" in the two bubbles.
7 0
3 years ago
How to Find the vertex of f(x)=-8x^2-8x+7
charle [14.2K]

Answer:

The answer to your question is: (1/2, 5)

Step-by-step explanation:

Parabola                     f(x) = 8x² - 8x + 7

                                     y = 8x² - 8x + 7

Vertical Parabola equation

( x - h)² = 4p (y - k)            Transform the original equation to this form

8x² - 8x       = y - 7            

8(x² - x  + (   )²)  = y - 7       Complete squares

8 (x² - x + (1/2)²) = y - 7 + 2    Simplification

8 (x² - x + 1/4) = y - 5

                                 (x - 1/2)² = 1/8 (y - 5)

Finally Vertex

                        (1/2 , 5)

7 0
3 years ago
What is equivalent to 3 and 1/4 minus negative 5/8
marysya [2.9K]

Answer:

31/8

Step-by-step explanation:

3/1/4 - (-5/8)

13/4 + 5/8

find Lcm of 4 and 8 = 8

multiply their common factors with numerators.

13*2 + 5*1 = 31

=31/8 or 3/7/8 or 3.875

7 0
2 years ago
Read 2 more answers
PLZ HURRY IT'S URGENT!!!!<br> Which ratio is equivalent to 14/21? A. 2/3 B. 1/7 C. 3/4 D. 2/7
Naddik [55]

Answer:

The correct answer here is 2/3

Step-by-step explanation:

That is because 7 doubled is 14 and 7 multiplied by 3 is 21.

8 0
3 years ago
Read 2 more answers
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