MATHEMATICS HIGH SCHOOL

Which expression is equivalent to 9^-2?
–81
–18
1/81
1/18

Answers

Answer 1
Answer:

Answer:

(C) f(x)={(1)/(81)}

Step-by-step explanation:

The given expression is:

f(x)=9^-2

Upon solving the above expression, which can be written as:

f(x)=({(1)/(9)})^2

f(x)={(1)/(81)}

which is same as the expression given in the option (C) that is f(x)={(1)/(81)}, hence the option C is correct.
Answer 2
Answer: (9)^-2 = (1/9)^2 = 1/81

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Answer:uh look up a video?

Step-by-step explanation:

Tiff's Treats two-thirds of a glass of juice which fraction is equivalent to 2/3

Answers

2/3 is equal to 4/6 because if you have the numerater and denominator both multiply 2 it would be equal.
2×2           4
____  = ____
3×2           6

I need this rn 3×-7 equivalent expressions A. -21 B. 4 C. -4 D. 21

Answers

Answer: The answer is A. -21

Its simplified and i just multiplied 3 by -7 :)

Answer:

A

Step-by-step explanation:

because a plus and minus equals a minus.

What’s a reflection transformation

Answers

Answer:

A rigid transformation that flips preimage without changing size or shape just the angle over a specific line.

Step-by-step explanation:

"In mathematics, a reflection is a mapping from a Euclidean space to itself that is an isometry with a hyperplane as a set of fixed points; this set is called the axis or plane of reflection. The image of a figure by a reflection is its mirror image in the axis or plane of reflection."

"In geometry, a reflection is a type of rigid transformation in which the preimage is flipped across a line of reflection to create the image. Each point of the image is the same distance from the line as the preimage is, just on the opposite side of the line."

Brainliest please!

What is the angle of C (C)?
С
65°
65°

Answers

Answer:

50°

Step-by-step explanation:

The missing angle, <C, is an angle on a straight line with the two other angles who measures are 65% each.

Therefore:

65 + 65 + C = 180° (angles on a straight line)

130 + C = 180

Subtract 130 from both sides

130 + C - 130 = 180 - 130

C = 50°

How can I make this a perfect square
w^2-4w+

Answers

ax^2+bx+c
if a=1, then
take 1/2 of b and square it

w^2-4w+c
b=-4
-4/2=-2, (-2)^2=4
add that
w^2-4w+4
(w-2)(w-2)
(w-2)^2

to make it into perfect squres, add 4
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