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Leya [2.2K]
3 years ago
9

(?,3) is on the line y=2x+5 find the other coordinate

Mathematics
1 answer:
Lerok [7]3 years ago
7 0
Think about this. What do the numbers in a coordinate stand for? They stand for X and Y. If you're trying to figure out what the X is, wouldn't you be solving for x? And didn't they just give you an equation? ;) First off, do you see how the "Y" value is given to you in the coordinate? All you have to do is substitute that 3 in for the "y" in the equation! 3=2x+5. Hey.... that looks like a simple equation! First, you need to subtract 5 from the other side of the equation. Now you're left with 2x=-2. Divide both sides by 2, and you get that x=-1. Now, just substitute that "x' value into the coordinate, and your answer should come out to be (-1, 3). :D
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Find the measure of the red arc or chord in ⊙C. The measure of arc XYZ is a °
Igoryamba

The points on the red arc are points A and B

The measure of the red arc is 75 degrees

<h3>How to determine the measure of arc XYZ?</h3>

From the complete question, we have:

Angle DCE = 75 degrees

By vertical angles theorem,

Angle ACB = Angle DCE = 75 degrees

So, we have:

Angle ACB = 75 degrees

The measure of the red arc is the same as the measure of the angle ACB.

So, we have:

Red arc = 75 degrees

Hence, the measure of the red arc is 75 degrees

Read more about arc and chords at:

brainly.com/question/25871159

3 0
2 years ago
Jensen has an above ground pool in the shape of a regular octagon. Opposite sides are 25 feet apart and each side is 10.4 feet l
bija089 [108]

Answer:

<u>Given</u>: base = 10.4ft, height = 12.5

Area of octagon = 8(1/2 × b × h)

  • 8(1/2 × 10.4 × 12.5)
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Volume of pool = 520ft² × 3ft

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Now, 1 cubic ft takes 7.5 gallons to fill.

Therefore, 1560 cubic ft takes,

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6 0
3 years ago
Can someone plzz help me with these 2 questions. thanks!
Deffense [45]

9514 1404 393

Answer:

  4. height: 5√3 cm; area: 25√3 cm²

  5. 30√2 ft ≈ 42.43 ft

Step-by-step explanation:

4. The height of an equilateral triangle is (√3)/2 times the side length, so is ...

  height = (√3)/2 × (10 cm) = 5√3 cm

The area is given by the formula ...

  A = 1/2bh

  A = 1/2(10 cm)(5√3 cm) = 25√3 cm²

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5. The diagonal of a square is √2 times the side length, so the distance from 3rd to 1st base is ...

  (30 ft)√2 ≈ 42.43 ft

__

The length of the diagonal of a square is something you should be familiar with. If you're not, you can figure the distance using the Pythagorean theorem.

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6 0
2 years ago
Write two word phrases for t+23
bixtya [17]
For a sum of a number t and 23
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3 years ago
karla borrowed $5 each from 4 different friends. How much money does karla owe her friends altogether
lys-0071 [83]

Answer:

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If she owes 4 people 5 dollars each, you multiply 5 and 4 to get the full amount of money altogether. In this case, the equation is

5*4=20

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