Evaluate the algebraic expression: (20 - (-2)) = 11

Mathematics

2 answers:

kogti [31]3 years ago

6 0

Answer:

the answer is 22 not 11

Step-by-step explanation:

(20-(-2))

we change the sign of the number being subtracted and treat the operation as addition instead

so it's

(20+2)=22

telo118 [61]3 years ago

5 0

Answer:

false

Step-by-step explanation:

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Which expression is equivalent to...

olga_2 [115]

Answer:

$8m^5$

Step-by-step explanation:

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We can now divide the m^7 by m^2 by subtracting the exponents, and the reason why this works, is you're simply cancelling out the m's, If we express this in expanded form we have the following fraction: $\frac{24 * m * m * m * m * m * m * m}{3 * m * m}$

Since there is two m's in the denominator and there is also two (more than two) m's in the numerator, we can cancel those two m's out, and we get the fraction:

$\frac{24 * m * m * m * m * m}{3}$ which can be simplified in exponent form as: $\frac{24m^5}{3}$ , now all we have to do is divide the 24 by the 3, to get 8