3 years ago

Explain how you would use addition to find the product of –2 and 5 using the integer tiles and the number line.

Mathematics

1 answer:

Firdavs [7]3 years ago

5 0

Answer:

Product of -2 and 5 is -2 times 5, or 5 times -2 (5 * -2).

You can think of this as 5 lots of -2.

If each (-) is a negative,

-2 = (-)(-)

5* -2 =

(-)(-) (-)(-) (-)(-)

(-)(-) (-)(-)

= -10

Step-by-step explanation:

(( I might be wrong- If I am I shall give u a pretty picture~ <3 ))

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PLZZZZ HELP ASAP PLZZZ

11111nata11111 [884]

Answer:

1. (5x - 2) + (2x - 2) + x = $180^{o}$

2. m<J = $113^{o}$

3. m<K = $44^{o}$

4. m<L = $23^{o}$

Step-by-step explanation:

Generally, the sum of angles in a triangle = $180^{o}$ .

So that;

m<J + m<K + m<L = $180^{o}$

(5x - 2) + (2x - 2) + x = $180^{o}$

5x + 2x + x -2 -2 = $180^{o}$

8x - 4 = $180^{o}$

8x = $180^{o}$ + 4

8x = 184

x = $\frac{184}{8}$

x = $23^{o}$

Thus,

m<J = (5x - 2)

= 5(23) - 2

= $113^{o}$

m<K = (2x -2)

= 2(23) - 2

= $44^{o}$

m<L = x

= $23^{o}$

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Step-by-step explanation:

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