I NEED HELP ASAP!! Subtract. -30-27= ? -5-(-4)= ?

1 answer:

5 0

-30-27= -57
When both numbers are negative, they are “added” in a sense, but remain negative.

-5-(-4)= -1
You have to multiply the (-4) by the “invisible” -1 on the outside before you add/subtract.

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What is the value of k?

seraphim [82]

Answer:

k=2

Step-by-step explanation:

We have got a right triangle LNO with sides = m,4 and 8

By Pythagorean theorem

m^2=4^2 +8^2

Or m^2 = 80 ... i

IN triangle NOM, 4^2 +k^2 = l^2

i.e. 16+k^2 = l^2... i

In triangle LNM, m^2+l^2 = (8+k)^2

Substitute for m^2 as 80,

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From i, l^2 = 16+k^2

Substitute in iii

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svetoff [14.1K]

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3 years ago

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Answer:

Step-by-step explanation:

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