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andreyandreev [35.5K]
3 years ago
8

Best explained and correct answer gets brainliest.

Mathematics
2 answers:
babymother [125]3 years ago
7 0
The answer is B ... proven by AAS
leva [86]3 years ago
5 0
Hey!

____________________________

Given-:

∆RQT
QS bisects ∠RQT
∠R= ∠T

To prove- RS=TS

Proof-

∠R= ∠T [Given]
∠RQS= ∠TQS [ QS bisects ∠RQT]
RQ= QT [∠R= ∠T]

Here we get, ∆RSQ ≅ ∆TSQ


Thus, By C.P.C.T, we get,

RS=TS


Thus, correct Option=> (B)
____________________________

Hope it helps...!!!


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If anyone can answer this, I will give you hearts!
kotegsom [21]

Answer:

  see attached

Step-by-step explanation:

Rotation 270° counterclockwise is equivalent to rotation 90° clockwise. The transformation of coordinates is ...

  (x, y) ⇒ (y, -x) . . . . . . . rotation 270° CCW

This means the points are moved to ...

  A(-2, 1) ⇒ A'(1, 2)

  B( 1, 2) ⇒ B'(2, -1)

  C(-2, 4) ⇒ C'(4, 2)

The rotated triangle is shown in the attachment. You may notice that A' and B are the same point.

6 0
2 years ago
I'm still stuck on this one
Evgesh-ka [11]
The answer would be -4.5/5. You would have to plot the number in between -2 and - 1 4/5. Hope this helps!
7 0
3 years ago
List all sets that apply for 0.6
uranmaximum [27]

Answer:

i know

Step-by-step explanation:0.6

3 0
3 years ago
Will mark brainliest! Please help!
ValentinkaMS [17]

Answer:

The dimensions are:

3(2x+1) by (7x+5)

Step-by-step explanation:

The area of the rectangle is given as

A=42x^2+51x+15

The factored form of this quadratic trinomial gives the dimensions of the rectangle.

We factor 3 first to obtain;

A=3(14x^2+17x+5)

We split the middle term to get;

A=3(14x^2+10x+7x+5)

We factor within the parenthesis to get;

A=3(2x(7x+5)+1(7x+5))

We factor further to get;

A=3(2x+1)(7x+5)

The dimensions are:

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Then the perimeter will be

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4 0
3 years ago
The mean score on a set of 17 test is 72. Suppose two more students take the test and score 68 and 63. What is the new mean?
Masja [62]

Answer:

New mean=71.32

Step-by-step explanation:

The expression for the total initial score is;

T=M×S

where;

T=total initial score

M=mean score

S=number in the set

replacing;

T=unknown

M=72

S=17

replacing;

T=72×17=1,224

The total initial score=1,224

Determine the total score by;

total score=total initial score+total final score

where;

total initial score=1,224

total final score=(68+63)=131

replacing;

total score=1,224+131=1,355

Determine the new mean;

New mean=total score/new number

where;

total score=1,355

new number=(17+2)=19

replacing;

new mean=1,355/19=71.32

8 0
3 years ago
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