3 years ago

Which angle pairs are supplementary? Check all that apply.

Mathematics

1 answer:

Lisa [10]3 years ago

6 0

Answer:

Is this what your talking about??

Step-by-step explanation:

Supplementary angles add up to 180 degrees, meaning they are straight lines.

B) ∠4 and ∠3

C) ∠4 and ∠5

E) ∠3 and ∠6

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URGENT !!

Elina [12.6K]

Answer:C

Step-by-step explanation:

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2 years ago

The ratio of carbon-14 to carbon-12 in a piece of wood discovered in a cave is R = 1/917. Estimate the age of the piece of wood

Colt1911 [192]

Answer:

The answer is " $\bold{6.6 \times 10^{12}\ years}$ "

Step-by-step explanation:

Let the given value is:

$R=\frac{1}{9^{17}}\\\\\to \frac{N_{c_{14}}}{N_{c_{12}}}=\frac{1}{9^{17}}\\\\\to t=\frac{2.303 \times 9^{17}}{5717}=6.6\times 10^{12}\ years$

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2 years ago

You wish to mentally estimate the total cost of items that have the following prices: $1.85, $.98, $3.49, $9.78, and $6.18. Roun

Tanzania [10]

If you wish to mentally estimate the total cost of items, rounding off the items to the nearest half dollar, then you have to consider all five items separately.

Five items cost $1.85, $.98, $3.49, $9.78, and $6.18.

1. $1.85≈$2;

2. $0.98≈$1;

3. $3.49≈$3.50;

4. $9.78≈$10;

5. $6.18≈$6.

Then the total cost is

$2 + $1 + $3.50 + $10 + $6 =$22.50.

Answer: correct choice is C

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2 years ago

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I have no idea what this means

Natali [406]

The answer is boxed in. follow the arrows.

7 0

3 years ago

Find the perimeter. Simplify your answer completely.

Vladimir79 [104]

Answer:119 4/7

Step-by-step explanation:

2/14+6/14+2/14+4/14+1/14+3/14+4/14= 22/14

10+35+10+12+24+15+12=118

118 22/14

119 8/14

119 4/7

5 0

2 years ago

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