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puteri [66]
3 years ago
7

Q supp r and m q =22 degrees

Mathematics
2 answers:
Gennadij [26K]3 years ago
4 0

Answer:

Option 2 -  \angle R=158^\circ

Step-by-step explanation:

Given : \angle Q supp \angle R and \angle Q=22^\circ

To find : \angle R ?

Solution :

Supp means the supplementary angle.

We know that,

The sum of two supplementary angle is 180°.

i.e. \angle Q+\angle R=180^\circ

Substitute \angle Q=22^\circ,

22+\angle R=180^\circ

\angle R=180-22

\angle R=158

Therefore, \angle R=158^\circ

So, option 2 is correct.

netineya [11]3 years ago
3 0

Answer:

<R = 158

Step-by-step explanation:

Supplementary angles equal 180 degrees.

<Q + <R =180

22 + <R = 180

Subtract 22 from each side

22-22 + <R = 180-22

R = 158

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Two years ago ,a woman was 7 times as old as her daughter,but in 3 years time ,she would be 2 times as old as the girl,how old a
Vika [28.1K]

Let present age of women and her daughter be x and y respectively.

<u>According to the questi</u>on,

Case 1 :

Two years ago,

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Woman was 7 times old as her daughter. [ Given ]

x - 2 = 7 ( y - 2 )

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=> x - 2 + 14 = 7y

=> x + 12 = 7y ....( i )

Case 2 :

After Three years ,

Woman age = x + 3

Her daughter age = y + 3

she would be 4 times old as the girl. [ Given ]

x + 3 = 4 ( y + 3 )

=> x + 3 = 4y + 12

=> x = 4y + 12 - 3

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Now,

★ Substituting the value of x = 4y + 9 from equation ( ii ) in equation ( i ),we get

x + 12 = 7y

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=> 21 = 3y

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4 years ago
Solve by the linear combination method.
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If a rectangle is rotated about the y-axis as shown below, what three-dimensional figure would be formed?
Xelga [282]

Answer:

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Step-by-step explanation:

This is assuming the rectangle has its sides parallel with the x and y axes.  

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Now for me I would imagine that rectangle being a sheet of paper, or metal.  if you set that sheet atop some dirt or something and then rotated it, what shape would be drawn into the material?  It would be a circle.  So we know the 3d shapewill have a base of a circle, which leaves us with a cylinder.  Again, let me know if this method did not make sense.  

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