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zepelin [54]
2 years ago
7

HAVE A NICE DAY WILL GIVE BRAINLST :)

Mathematics
1 answer:
Damm [24]2 years ago
7 0

Answer:

6. 40

7. 65

8. 50 and 80

Step-by-step explanation:

180-70-70=40

180-55-60=65

180-50-50=80 so that would have to be 50+50+80= 180

Becuase it all needs to add up to 180. :))

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PLEASE HELP ME!!!!
Damm [24]

Answer:

  • sin C=h/a
  • substitution property of equality
  • commutative property of multiplication

Step-by-step explanation:

Because two points determine a line, you can draw altitude​ BD perpendicular to AC with height h. By the definition of a sine ratio, <u>sin(C) = h/a</u>, which can be rearranged into​ a·sin(C) = h​. The area of △ABC is A=1/2bh. The <u>substitution property of equality</u> can be used to write A=1/2b(a sinC), which becomes A=1/2ab(sinC) by the <u>commutative property of multiplication</u>.

___

The mnemonic SOH CAH TOA reminds you that the sine ratio is ...

  Sin = Opposite/Hypotenuse

Here, the side of the right triangle opposite angle C is designated "h", the height of ∆ABC. The hypotenuse of that right triangle is side "a". So ...

  sin(C) = h/a

__

The substitution property of equality lets you replace any expression with its equal. Here, we have h=a·sin(C), so we can use a·sin(C) in place of h in the formula for triangle area:

  1/2bh = 1/2ba·sin(C)

__

The commutative property of multiplication lets you rearrange the order of the factors in a product, so ...

  ba = ab

and

  A = 1/2ba·sin(C) = 1/2ab·sin(C)

7 0
3 years ago
Whats 8/16 in decimal form
VikaD [51]
I believe the answer is
.5
7 0
2 years ago
I need help I am timed please <br><br> 1/4c+5/3c-4=2-1/12 What dose c equalu
Anon25 [30]

Answer:

c=71/23 or 3 2/23 or 3.08695652...

6 0
2 years ago
Read 2 more answers
the lenghty of a rectangal is 8 feet more than its width. the pirimete of the rectangle is 72 feet. Find the width
morpeh [17]

Width of the rectangle is 14 ft

Step-by-step explanation:

  • Step 1: Let the width of the rectangle be x. Then length = 8 + x. Perimeter = 72 ft.

Perimeter = 2(length + width)

72 = 2 (8 + x + x)

72 = 16 + 4x

4x = 56

x = 56/4 = 14

∴ Width of the rectangle is 14 ft

3 0
3 years ago
Question 1 of 8
tekilochka [14]

Answer:

A, C,D,E,F

Step-by-step explanation:

6 0
2 years ago
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