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kipiarov [429]
3 years ago
15

How do I find x and y for the problem below? -7x+2y=-13 1x-2y=11

Mathematics
1 answer:
d1i1m1o1n [39]3 years ago
7 0
For the first one :)))))))

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Use the pythagorean theorem to write an equation for the distance Jane's trainer bikes.​
ankoles [38]

Complete question is;

Jane is training for a triathlon. After swimming a few laps, she leaves the health club and bikes 16 miles south. She then runs 12 miles west. Her trainer bikes from the health club to meet jane at the end of her run. Use the pythagorean theorem to write an equation for the distance janes trainer bikes

Answer:

x = √(12² + 16²)

Step-by-step explanation:

We are told that;

She bikes from health club to South = 16 miles

From South to West = 12 miles

Her trainer bikes from the health club to meet her at the end which is west.

I have attached a diagram showing this movement in form of a triangle.

From the diagram I attached, I have depicted the distance the trainer bikes as x.

Using pythagoras theorem;

x² = 12² + 16²

x = √(12² + 16²)

7 0
3 years ago
Pls help me I really need help this is due ASAP I’ll brainlest grades close today pls help
Harlamova29_29 [7]
Answer: 11x-6

Steps:
(2x+ 1/2) + (9x - 6 1/2)
-1/2. -1/2
2x+9x-6
11x-6

So the final answer is 11x-6
6 0
3 years ago
Evaluate p(x)=-3+4x when x=-2,0,and 5
Luden [163]

Answer: -11, -3, 17

Step-by-step explanation:

There are three answers depending on what x equals. In this case, x can equal: -2, 0, or 5.

Part 1:

Step 1: Substitute -2 for x

-3 + 4(2)

Step 2: Solve

-3 + 8 = 5

This is the first answer

Part 2:

Step 1: Substitute 0 for x

-3 + 4(0)

Step 2: Solve

-3 + 0 = -3

This is the second answer

Part 3:

Step 1: Substitue 5 for x

-3 + 4(5)

Step 2: Solve

-3 + 20 = 17

This is the third answer

3 0
3 years ago
Llus
mafiozo [28]

Answer:

x ≈ 80.4

Step-by-step explanation:

Using the tangent ratio in the right triangle

tan15° = \frac{opposite}{adjacent} = \frac{x}{300} ( multiply both sides by 300 )

300 × tan15° = x , then

x ≈ 80.4 ( to the nearest tenth )

7 0
3 years ago
This is dumb is someone even going to help me with this answer
Jobisdone [24]
The two heaviest pumpkins weigh 19.5 lbs. Together, they weigh 35 lbs.

The two lightest pumpkins weigh 10 lbs and 10.75 lbs. Together, they weigh 20.75 lbs.

35 - 20.75 = 14.25 lbs

Hope this helps!
7 0
3 years ago
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