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FinnZ [79.3K]
3 years ago
9

Help please! Find the difference between the measure of the largest angle and the measure of the smallest angle in the triangle

above.
 A.14° B.45° C.88..9° D.99.8°

Mathematics
1 answer:
lana66690 [7]3 years ago
7 0
We will use the Cosine law:
c² = a² + b² - 2 a b cos C
In this case:
15² = 10² + 7² - 2 · 10 · 7 cos K
225 = 100 + 49 - 140 cos K
76 = - 140 cos K
cos K = - 76 / 140
cos K =  - 0.5428
∠ K= cos ^(-1) ( -0.5428 ) = 122.88° ( the largest angle )
49 = 100 + 225 - 2 · 10 · 15 cos J
- 276 = -300 cos J
cos J = 0.92
∠J = cos ^(-1) 0.92 = 23.08° ( the smallest angle )
122.8° - 23.08° = 99.8°
Answer: D )
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NEEED HELP ASAPPPP !!
Ksenya-84 [330]

Answer:

the 3rd one

Step-by-step explanation:

If you use the vertical line test, you can see that in all the other graphs theres 2 points on a line, the 3rd one is the only one where each point doesn't share a vertical line with any other points. :)

6 0
4 years ago
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Destiny grew 15 plants with 3 seed packets. How many seed packets does Destiny need to have a total of 65 plants in her backyard
Alexandra [31]

Answer: she would have to use 5 seed packets

This is because every seed packet has 15 plants so 15 x 5 would equal 75

If you only use 4 packets you would be short 5 plants so you have to add another packet to get all 65 plants

7 0
4 years ago
Find the approximate area of /CDE. A. 48.3 square units B. 59.8 square units C. 64.6 square units D. 75 square units
Alex Ar [27]

Answer:

B

Step-by-step explanation:

To calculate the area of this triangle we can use the Heron’s formula

Mathematically we have the Heron’s formula as;

A = √s(s-a)(s-b)(s-c)

where s = (a + b + c)/2

Thus, s = (15 + 12+ 10)/2 = 18.5

a = 15, b = 12 and c = 10

Plugging these values into the equation, we have

√18.5(18.5-15)(18.5-12)(18.5-10)

= √18.5(3.5)(6.5)(8.5)

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A = 59.8116

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8 0
4 years ago
Given: b = 600, B = 11°, C = 75° in triangle ABC; find C. (Round the answer to the nearest whole number.)
Slav-nsk [51]

Answer:

The answer to your question is the letter B. 3,037

Step-by-step explanation:

Data

b = 600

B = 11°

C = 75°

c = ?

Process

1.- To solve this problem, use the law of sines

               b/sin B = c/sin C

2.- Solve for c

                c = b sin C / sin B

3.- Substitution

                c = 600 sin 75 / sin 11

4.- Simplification

                c = 600 (0.966) / 0.191

                c = 579.55 / 0.191

5.- Result

                c = 3037    

5 0
4 years ago
Can someone help me with this problem pleaseeee :(
Andrej [43]

Answer:

2/7

Step-by-step explanation:

6 large fish and 8 small fish (half of the them are red = 4)

total fish 6 + 8 = 14 fishes

probability that one fish is one small and red fish is

there are 4 small and red fish

= 4c1 / 14c1

= (4! / (1! (4 - 1)! )  /  (14! / (1! (14-1)! )

= 4/14

= 2/7

6 0
3 years ago
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