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nadezda [96]
3 years ago
6

Area of triangle where A=50, b=31, c=18

Mathematics
1 answer:
Mrac [35]3 years ago
5 0
Use Heron's Formula:
s means semi-perimeter = (50 + 31 + 18) / 2 = 99 / 2 =
49.5
area = sq root [(s * (s-a) * (s-b) * (s-c)]
area = sq root [(49.5 * (s-a) * (s-b) * (s-c)]

This will NOT form a triangle.  The longest side (50) is greater than the sum of the other 2 sides.

Source:
http://www.1728.org/trianinq.htm

 


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Please please help mane :((( give explanation plsss :(((
Deffense [45]

Answer:

2x - 1 > 4x + 6 \\ 2x - 2x - 1 > 4x - 2x + 6 \\  - 1 > 2x + 6 \\  - 6 - 1 > 2x \\  - 7 > 2x \\  \frac{ - 7}{2}  > x

I hope I helped you^_^

3 0
3 years ago
Find the slope of the line (-1,-4) , (-4,2)
Feliz [49]
Rise = -6
Run = 3

-6/3 = -2

Slope = -2

4 0
2 years ago
A researcher claims that the average annual salary of part-time community college instructors is at least $45,000. To test this
Doss [256]

Answer:

See explanation

Step-by-step explanation:

Solution:-

- The researcher claims :

" the average annual salary of part-time community college instructors is at least $45,000 "

- We will extract the claim made by the researcher to be the Null hypothesis:

                     Null Hypothesis : μ ≥ $45,000

- Any statement otherwise, or point of rejection criteria will denote the Alternate hypothesis that disbands the claim that:

" the average annual salary of part-time community college instructors is less than $45,000 " :

                    Alternate Hypothesis : μ < $45,000

- This type of test with a sample size of n = 25 < 30 and population standard deviation is also not given hints the use t-test statistics and t-critical value reject the claim.

                     Lower tail - one sample - T-test.

6 0
2 years ago
SHOW YOUR WORK PLEASE ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
IgorC [24]

Answer:

h = -t+20

After 8 hours the candle will be 12 inches

Step-by-step explanation:

We have 2 points (time, inches)

 (3,17)  and (5,15)

We can find the slope

m = (y2-y1)/(x2-x1)

   = (15-17)/(5-3)

   = -2/2

   = -1

We can use point slope form

y-y1 = m(x-x1)

Replace y with h and x with t

h-17 = -1 (t-3)

Distribute

h-17 = -t+3

Add 17 to each side

h-17+17 = -t+3+17

h = -t+20

After 8 hours

h = -t+20

h = -8+20

h= 12

3 0
3 years ago
Asap please !
S_A_V [24]

Answer:

2/3 I think I'm not completely sure

4 0
2 years ago
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