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serg [7]
2 years ago
14

Simplify: ((2x)/(3y ^ - 1)) ^ 2

Mathematics
1 answer:
Marina86 [1]2 years ago
8 0

Answer:

2xy²/9

Step-by-step explanation:

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A person jogged 10 times along the perimeter of a rectangular field at the rate of 12 kilometers per hour for 30 minutes. If fie
balu736 [363]

Answer:

20,000m²

Step-by-step explanation:

If they jog 12 km/h for half an hour, they have covered.

12 X 0.5 = 6km in 10 circuits. Making 1 perimeter

6 / 10 =0.6 km (600 m).

To determine area we need to convert this perimeter to length and width. We know that it is a rectangle, with 2 equal widths and 2 equal lengths, and the length is twice the width.

So L = 2W

Perimeter = 2W + 2L

600 m = 2W + 2(2W)

600 m = 6W

W = 100 m

L = 200 m

Area = 100 X 200 = 20,000 m²

4 0
2 years ago
Simplify the expression by using a double-angle formula or a half-angle formula. (a) cos2 θ 2 − sin2 θ 2
SCORPION-xisa [38]
If this is supposed to be
cos^{2}θ-sin^{2}θ
Then this can simply be reduced to
cos2θ
by the double angle formula for cosine



6 0
3 years ago
Determine the solutions of the equation. What solution
Vika [28.1K]

Answer: x=8

Width=8 inches

Length=13 inches

4 0
3 years ago
Identify the percent of change an increase or decrease then find percent of change one hundredfifty pounds to one hundred thirty
Alex777 [14]

Answer:

−10%change

 10%decrease

Step-by-step explanation:

V2−V1)|V1|×100

 =(135−150)|150|×100

=−15150×100

=−0.1×100

=−10%change

=10%decrease

Note: Percent Change is NOT the same as  Percent Difference between 150 and 135.

Hope this helps!

6 0
3 years ago
Help me in number 8 plzz
Karo-lina-s [1.5K]
8a) The monthly rainfall is 3.6

8b) Deviation for May is 1
      Deviation for June is 2.725
      Deviation for July is 0.65

8c) Yes, the average annual rainfall was exceeded by 0.525

Please give me a rating if this helped
5 0
3 years ago
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