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3 years ago

A pair of equations is shown below:

Mathematics

1 answer:

Margarita [4]3 years ago

4 0

your question: 

A pair of equations is shown below:

y = 7x − 9

y = 3x − 1

Part A: In your own words, explain how you can solve the pair of equations graphically. Write the slope and y-intercept for each equation that you will plot on the graph to solve the equations. (6 points) YOU HAVE ALREADY ANSWERED

Part B: What is the solution to the pair of equations? (4 points)

answer: 

the solution to the pair of equations would be

(2,5)

how do we get this?

you put both equations in a desmos graphing calculator

hope this helps, have a great night :)

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To travel Erie Canal, a boat must go through locks that raise or lower the boat. Traveling East a boat would have to be lowered

Nookie1986 [14]

Answer:

Boat level variation = 23'

Step-by-step explanation:

The graph shows that the variation between Amsterdam and Randall is referred to the Randall level

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4 years ago

Two spinner are shown. Which best explains why one spinner is more likely to land a section labeled A than the other spinner?

Blababa [14]

Answer:

I think the answer is B because there are 2 A's on spinner 1 than spinner 2

8 0

3 years ago

An observer (O) spots a plane flying at a 55° angle to his horizontal line of sight. If the plane is flying at an altitude of 21

mel-nik [20]

Angle of elevation is angle measured from horizontal line to line of sight, The distance from the plane to the observer is 25,636 feet approx

<h3>What is angle of elevation?</h3>

You look straight parallel to ground. But when you have to watch something high, then you take your sight up by moving your head up. The angle from horizontal line to the point where you stopped your head is called angle of elevation. See the figure where angle OPD is the angle when observer saw the plane. It is measured from the horizontal line OD.

Refer to the attached figure.

It is given that we have

Length of PD = |PD| = 21,000 feet

Angle ∠OPD = 55°

Assuming length of OP = |OP| = x feet, we get the sin ratio as

$sin(55^\circ) = \dfrac{|PD|}{|OP|} = \dfrac{21000}{x}\\\\x = \dfrac{21000}{\sin(55^\circ)} \approx 25636.27 \approx 25636 \: \rm feet$

(tan 55° was calculated from online calculator)

Thus,

The distance from the plane to the observer is 25,636 feet approx.

Learn more about trigonometric ratios here:
brainly.com/question/22599614

4 0

2 years ago

I need the answer asap please

vesna_86 [32]

Answer:

sin 60° = 1/2 √3

B. √3/2

Step-by-step explanation:

sin 0° = 0

sin 30° = 1/2

sin 45° = 1/2 √2

sin 60° = 1/2 √3

sin 90° = 1

7 0

3 years ago

During a race, Bernie ran 9meters every 4 seconds, while Wendel ran 2 meters every second and got a 9-meter head start. If the r

sdas [7]

Answer:

Step-by-step explanation:

No, because Bernie had to run 9 meters 7.77777778 time (70/9) and each of those 9-meter sections took 4 seconds, so her time was 31.1111111 (7.77777778*4). While Wendel had to run 61 meters 70-his headstart (9 meters) (70-9). So he only had to run 30.5 blocks of 2 meters (61/2). And since they're only 1 second long, it's 30.5*1=30.5.

So the answer is a NO because (Bernie) 31.1111111 seconds > 30.5 seconds (Wendel).

3 0

4 years ago