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stira [4]
3 years ago
13

PLEASE HELP ASAP GEOMETRY 20 POINTS REAL ANSWERS ONLY!

Mathematics
1 answer:
DedPeter [7]3 years ago
8 0

Answer:

16.2

Step-by-step explanation:

Use the law of cos

c^2 = 8^2+10.4^2-2*8*10.4*cos(122.2 degrees)

=260.83

c = √260.83 = 16.15

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What kind of triangle does it form?
Gwar [14]

Answer:

It forms a scalene triangle

Step-by-step explanation:

This is because scalene triangle does not have any of its sides equal.

\sqrt{111} is also 10.54.And looking at the measurements none of it are equal to each other so therefore it is a scalene triangle

7 0
3 years ago
LAST QUESTION!!!!!! WILL GIVE BRANLIEST!!!!! PLS JUST TAKE A LOOK!!!!!! SHARE YO SMARTNESS!!!!!!!!
Anettt [7]

Answer:

D

Step-by-step explanation:

D is more appropriate for distance formula because you are looking for the whole length between two points rather than the point in between the the two points such as in the other answers.

4 0
3 years ago
Index notation -
Jlenok [28]
A) 4*3 x 5*2
b) 9*4 x 7*2
c) 3 x 7*4
d) 2*2 x 9*4
8*5
6 0
4 years ago
Two triangles are similar. The smaller triangle has side lengths 10, 20, and 15 units. The larger triangle's longest side is 52
Firdavs [7]

Answer:

117 units

Step-by-step explanation:

if you use the ratio of the two longest sides then you can find all side lengths

\frac{52}{20} = \frac{x}{10};    x = half of 52, or 26

\frac{52}{20} = \frac{x}{15};    20x = 52 · 15

              20x = 780

               x = 39

add to get perimeter: 52 + 26 + 39 = 117 units

5 0
3 years ago
Read 2 more answers
1. The county fair charges $1.25 per ticket for the rides. Jermaine bought 25 tickets for the rides and spent a total of $43.75
Diano4ka-milaya [45]
We will use the amount Jermaine used to determine the admission price, since that is not given to us. The total amount he paid is equal to the sum of the price of the tickets and the amdission price, a. We get the equation 43.75 = 1.25 * 25 + a a = $12.5 Now, if a person comes to the fair and pays for only the rides and admission, we can form an equation in x, the number of ride tickets, and y, the total cost incurred by that person. y = 1.25x + 12.5 Here, y is the total cost, 1.25 is the price per ticket, x is the number of tickets and 12.5 is the admission cost.

Hope this help. 
6 0
3 years ago
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