1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Feliz [49]
1 year ago
10

Geometry question! Help!

Mathematics
1 answer:
Karolina [17]1 year ago
8 0

Answer: 2\sqrt{2}

Step-by-step explanation:

The inradius is given by the area of the triangle divided by the semiperimeter.

The semiperimeter is \frac{12+12+8}{2}=16.

Thus, by Heron's formula, the area is \sqrt{16(16-12)(16-12)(16-8)}=32\sqrt{2}.

Therefore, the radius is \frac{32\sqrt{2}}{16}=2\sqrt{2}}

You might be interested in
A ladder, 14 feet long, is leaning against
PolarNik [594]

Answer:

12.12ft

Step-by-step explanation:

14² = 7² + x²

x² = 14² - 7²

x² = 196 - 49

x² = 147

x = √147

x = 12.12ft

6 0
3 years ago
Read 2 more answers
The mean life of a particular brand of light bulb is 1200 hours. if you know that at about 95% of this brand of bulbs will last
Snowcat [4.5K]
<span>204
   First, lookup a standard normal table and see what the z-score is for 0.025 (one half of 100% - 95%) to allow for equal sized tails. You should find that the z-score is 1.96. That means that 95% of the time, the value should be within 1.96 standard deviations of the mean. Now let's calculate the standard deviation. 800 is 800 - 1200 = -400 to the left of the mean of 1200. 1600 is 1600 - 1200 = 400 to the right of the mean of 1200. So we are an equal distance of 400 on both sides of the mean. And we know from the z-score of 1.96, that we're 1.96 standard deviations from the mean. So a little division will give us the standard deviation. Which is: 400 / 1.96 = 204.0816327
   So the standard deviation of the light bulbs is 204</span>
4 0
3 years ago
Only find the vertex and axis of symmetry
lara [203]

Answer:

vertex (5,2)

axis of symmetry: x=5

Step-by-step explanation:

vertex (h,k)

y = a(x - h)² + k

f(x)=(x-5)²+2        a = 1     h = 5      k = 2

vertex (5 , 2)

The axis of symmetry always passes through the vertex of the parabola. The x -coordinate of the vertex is the equation of the axis of symmetry of the parabola.

x = 5

5 0
2 years ago
The relationship between fahrenheit and celsius scales is given by F=9/5C+32. Determine the value in celsius when F=-3?
IgorLugansk [536]
-3 = 9C/5 + 32

9C/5 = - 32 - 3

9C/5 = - 35

9C = - 175

C = -175/9

C = - 19.44
5 0
3 years ago
_______ is 100 times as much as 90
jek_recluse [69]

90*100=9000

hope that helps

3 0
3 years ago
Other questions:
  • D-10-2d+7=8+d-10-3d
    13·1 answer
  • A toll bridge charges $1.00 for passenger cars and $2.50 for other vehicles. suppose that during daytime hours, 60% of all vehic
    10·1 answer
  • Hiiii, can someone plz help me?
    14·1 answer
  • If a triangle has a heig of 14 inches and base of 9 inches whats its area?
    12·1 answer
  • 25 POINTS AND BRAINLIEST FOR THESE!
    13·2 answers
  • What equation has a slope of 2 and a y intercept of -5
    10·1 answer
  • Assume the standard deviation is $410 and that the amounts refunded follow a normal probability distribution. 1. What percent of
    7·1 answer
  • Plzzzzzzzzzzzzzzzzzzzzzzzz help ASAP
    15·2 answers
  • Helpppppppppppppppppp please......
    8·2 answers
  • How do i solve (3c^2d^4) ^3 x (2c^5d^8)^3?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!