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Nady [450]
4 years ago
12

= - 11 \\ " align="absmiddle" class="latex-formula">
Mathematics
1 answer:
irakobra [83]4 years ago
7 0

Answer:

n is equal to -8

Step-by-step explanation:

In order to solve this, we simply need to add 3 to both sides of the equation.

n - 3 = -11

n - 3 + 3 = -11 + 3

n = -8

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Im on a time limit please help i will give brainliest!
kari74 [83]

Answer:

C

Step-by-step explanation:

The area (A) of a triangle is calculated as

A = \frac{1}{2} bh ( b is the base and h the perpendicular height )

Here b = 19 and h = 16 , thus

A = 0.5 × 19 × 16 = 152 yd² → C

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3 years ago
What is the perimeter of a triangle with side 14in 8in and 16in in length
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4 0
3 years ago
Tell whether the equation has the ordered pair as a solution y=6x; (-7,-42)
Ber [7]

Answer:

Yes

Step-by-step explanation:

Substituting in x = -7, we get y = 6(-7) = -42, which is the same as the y coordinate of the given point.

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2 years ago
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

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3 years ago
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