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BigorU [14]
3 years ago
7

Help plz I've been stuck

Mathematics
2 answers:
stepladder [879]3 years ago
6 0

Answer:

The answer is D. (\frac{1}{5} )^{2}

Step-by-step explanation:

5^{4} *(5^{-3} )^{2}

simplify the expression by multiplying

5^{4} *5^{-6}

calculate the product

5^{-2}

express with a positive exponent using a^{-n} =\frac{1}{a^{n} }

\frac{1}{5^{2} }

skad [1K]3 years ago
3 0

{5}^4 * {(5^{-3} )}^2

5^{4} * 5^{-6}  = 5^{-2}

5^{-2} = \frac{1}{5^{2} } = {(\frac{1}{5})}^2

Alternative D)

See exponent/power properties for help.

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The measure of anglerst can be represented by the expression (6x 12)°. three lines extend from point s. the space between lines
miv72 [106K]

Answer:

  ∠RST = 120°

Step-by-step explanation:

We assume the positions of the lines and angles will match the attached figure. The angle addition theorem gives a relation that can be solved for x, then for the value of angle RST.

  ∠RSU +∠UST = ∠RST

__

  78° + (3x -12)° = (6x +12)° . . . . . substitute given values into the above

  54 = 3x . . . . . . . . . . . . . . . . divide by °, subtract 3x+12

  108 = 6x . . . . . . . . . . . multiply by 2

  120° = (6x +12)° = ∠RST . . . . add 12, show units

The measure of angle RST is 120 degrees.

_____

<em>Additional comment</em>

Note that we don't actually need to know the value of x (18) in this problem. We only need to know the value of 6x.

7 0
1 year ago
Help please!! The measures of the angles of a triangle are shown in the figure below. solve for x
tatiyna

9514 1404 393

Answer:

  x = 33

Step-by-step explanation:

The angles are complementary.

  x° = 90° -57°

  x = 33

3 0
2 years ago
Show all the steps!<br><br>3+2x=13-3x
Goshia [24]

Answer:

x=2

Step-by-step explanation:

3+2x=13-3x

 +3x      +3x

3+5x=13

-3      -3

5x=10

/5    /5

x=2

Hope this helps! :D

7 0
2 years ago
Read 2 more answers
Make x the subject of the formula y= 2x +5
Kryger [21]

Answer:

x= (y-5)/2

Step-by-step explanation:

Isolate the x variable.

y= 2x +5

Subtract 5 from both sides.

y-5=2x

Divide both sides by 2.

(y-5)/2= x

5 0
2 years ago
What is k in this proportional relationship?
Zolol [24]

Answer:

60

Step-by-step explanation:

K is the constant of proportionality or unit rate

(x, y)

(0, 0)

(2, 120)

(3, 180)

(4, 240)

120/2=60

180/2=60

240/2=60

The constant of proportionality or unit rate is 60

7 0
2 years ago
Read 2 more answers
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