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Aleks [24]
3 years ago
10

Chords and Arcs.

Mathematics
1 answer:
harina [27]3 years ago
7 0
It looks like you want to find the short leg (x) of a right triangle with long leg 15 and hypotenuse 18. The Pythagorean theorem gives the relationship between the sides of a right triangle.
  18² = 15² + x²
  324 = 225 + x²
  x² = 324 - 225 = 99
  x = √99 ≈ 9.9

The appropriate choice is ...
  b) 9.9
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1. Jamie purchases gifts for three friends. She chooses a book for $12.80 and then finds two identical necklaces. Her budget is
Evgen [1.6K]

Step-by-step explanation:

1.

  • (48 - 12.80)/2 = $17.6

2.

  • 250/6 ≈ 42 and more

3.

  • 485 - 319 = 166 more people

4.

  • 14.5x + 80 > 500
  • 14.5x > 420
  • x > 420/14.5
  • x > 29

5.

  • 1.25x + 3 ≤ 28
  • 1.25x ≤ 25
  • x ≤ 25/1.25
  • x ≤ 20 miles

6.  <em>This seems a typo... 460 is likely $60</em>

  • 60x + 145 ≤ 625
  • 60x ≤ 625 - 145
  • 60x ≤ 480
  • x ≤ 480/60
  • x ≤ 8 days

7 0
3 years ago
Which number is three hundred thousand times larger than 1.6x100
Georgia [21]

The answer is B) 4.8x10 to the 7th power

4 0
3 years ago
What is 4.2 converted into a fully reduced fraction?
Monica [59]

Answer:

4 1/5

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
If X and Y are supplementary angles then is y acute
xxMikexx [17]
Supplementay means adds to 180
x and y could be 100 and 80
x and y could be 1 and 179

acute means that it is less than 90


since we are not told what x or y is, y could or could not be acute
4 0
3 years ago
Help me with this please
Nostrana [21]
Check out the image attachment for one way to draw this problem out. Notice how angles AEC and DEB are vertical angles, so that means they are congruent angles

(measure of angle AEC) = (measure of angle DEB)
6x + 20 = 10x
6x + 20-6x = 10x-6x ... subtract 6x from both sides
20 = 4x
4x = 20
4x/4 = 20/4 ... divide both sides by 4
x = 5

The value of x is 5. 

Let's check the answer
6x + 20 = 10x
6*5 + 20 = 10*5 ... replace every x with 5
30+20 = 50
50 = 50
We have confirmed the answer.

8 0
3 years ago
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