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olga2289 [7]
3 years ago
6

What expression is equivalent to 13-(-21)?

Mathematics
2 answers:
Naddik [55]3 years ago
5 0

Answer:

34

Step-by-step explanation:

13-(-21) = 13 + 21 = 34

Maru [420]3 years ago
4 0

Answer:

34

Step-by-step explanation:

13 - ( - 12 ) given

13 + 12 distribute the invisible -1 and - 12 and add 13 + 12

34 answer

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Slope is found by dividing the change in ____ by the change in ____. x; y y; x
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Answer:

Change in Y by the Change in X.

Step-by-step explanation:

Slope can be found by dividing the rise (change in y) by the run (change in x).

m =\frac{rise}{run} = \frac{y_{2}-y_{1}}{x_{2}-x_{1}}

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3 years ago
lana is putting a lace trim arount the border of a circular tablecloth. the tablecloth has a diameter of 1.2 meters. to the near
Inessa [10]

Answer:

4m

Step-by-step explanation:

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allochka39001 [22]

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Determine the measure of angle A, B, and C in triangle ABC. If m∠A=(x-10)°,m∠B=(2x-50)°,and m∠C=x°
Effectus [21]

Answer:

m∠A = 50°

m∠B = 70°

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Step-by-step explanation:

Determine the measure of angle A, B, and C in triangle ABC. If m∠A=(x-10)°,m∠B=(2x-50)°,and m∠C=x°

In a Triangle, the sum of the interior angles of a triangle = 180°

Step 1

We solve for x

Hence:

m∠A + m∠B + m∠C= 180°

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Step 2

Solving for each measure

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3 years ago
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kkurt [141]

Answer:

(x-2) (x+2)

Step-by-step explanation:

------------------

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