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Sergeu [11.5K]
2 years ago
9

What is the area of this triangle in square units? 10 & 7

Mathematics
2 answers:
timurjin [86]2 years ago
7 0

Answer:

alòja máskelás 70 Mòk a sì ?!

ella [17]2 years ago
4 0

Answer: 35

Step-by-step explanation: formula; LxW divided by 2 7x10= 70 70 divided by 2 equals 35

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The law of Cosines Is......​
iogann1982 [59]

Answer: \Large\boxed{C.~21}

Step-by-step explanation:

<u>The goal of the question</u>

Find the value of 2abcosC

<u>Given information</u>

a = 4

b = 3

c = 2

<u>Given formula (Law of Cosine)</u>

c^2=a^2+b^2-2abcosC

<u>Substitute values into the formula (Leave 2abcosC as it is)</u>

(2)^2=(4)^2+(3)^2-2abcosC

<u>Simplify the exponents</u>

4=16+9-2abcosC

<u>Simplify by addition</u>

4=25-2abcosC

<u>Add 2abcosC on both sides</u>

4+2abcosC=25-2abcosC+2abcosC

4+2abcosC=25

<u>Subtract 4 on both sides</u>

4 + 2abcosC-4=25-4

\Large\boxed{2abcosC=21}

Hope this helps!! :)

Please let me know if you have any questions

5 0
1 year ago
Read 2 more answers
Help asap!!!!!!!!!!!
svlad2 [7]

Answer:

The answer to your question is:

Step-by-step explanation:

12.-

                x² - 6x = 5

                x² - 6x + (3)² = 5 + (3)²

               x² - 6x + 9 = 5 + 9

               (x - 3)² = 14

13.-           x² - 6x = 12

               x² - 6x + (3)² = 12 + (3)²

               x² - 6x + 9 = 12 + 9

              (x - 3)² = 21

              x - 3 = ±√21

             x1 = √21 + 3                     x2 = -√21 + 3

               x1 = 7.58                           x2 = -1.58

14.-           2x² - 24x = - 20            Divide by 2

                x² - 12 x = -10

               x² - 12x + (6)² = - 10 + (6)²

               x² - 12x + 36 = - 10 + 36

              ( x - 6) ² = 26

               x - 6 = ±√26

x1 = √26 + 6                                 x2 = -√26 + 6

x1 = 11.1                                          x2 = 0.9

3 0
3 years ago
When no net force is applied to a moving object, it still comes to rest because of its inertia.
mafiozo [28]

Answer:

A true

Step-by-step explanation:


3 0
3 years ago
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What is a close but easier numbers to estimate the answer to the problem
borishaifa [10]
You forgot to put the problem but choose answers that will divide evenly
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3 years ago
[14 POINTS AND BRAINLIST ❗️]
julsineya [31]

Answer:

d

Step-by-step explanation:

6 0
3 years ago
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