Step-by-step explanation:
open brackets
5z+20-13=2z+19
5z+7=2z+19
3z=12
z=4
B.
Because it reflects over
first the square root of 4 is 2 so we can sub that in.
now we have 2(2*2)^-2.
2 * 2 of course is 4
with 2(4)^-2, keep in mind that negative exponents just mean to "flip" the number and turn the exponents positive.
so 4^-2 is the same as 1/4^2 or 1/16.
finally 1/16 * 2 = 2/16. 2/16 simplified is 1/8.
Answer:
the theorum used here is sas one
Hey!
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Solution:
Put all the answer choices into expanded form.
3^9 = 3 x 3 x 3 x 3 x 3 x 3 x 3 x 3 x 3
1^8 = 1 x 1 x 1 x 1 x 1 x 1 x 1 x 1
9^3 = 9 x 9 x 9
8^1 = 8
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Answer:
We can see that the only way to write to write 9 x 9 x 9 in exponential form is c) 9^3
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Hope This Helped! Good Luck!
