Answer:
She can expect 240 to say no.
Answer
Find out the value of x .
To proof
SAS congurence property
In this property two sides and one angle of the two triangles are equal.
in the Δ ADC and ΔBDC
(1) CD = CD (common side of both the triangle)
(2) ∠CDA = ∠ CDB = 90 °
( ∠CDA +∠ CDB = 180 ° (Linear pair)
as given in the diagram
∠CDA = 90°
∠ CDB = 180 ° - 90°
∠ CDB = 90°)
(3) AD = DB (as shown in the diagram)
Δ ADC ≅ ΔBDC
by using the SAS congurence property .
AC = BC
(Corresponding sides of the congurent triangle)
As given
the length of AC is 2x and the length of BC is 3x - 5 .
2x = 3x - 5
3x -2x =5
x = 5
The value of x is 5 .
Hence proved
<span>C. 2* (3 + 5)^2 = 128 is the correct answer.
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The question is a little confusing, so bare with me.
The part that throws me off is the "same number of girls and boys". Does each individual group need the same amount of girls to boys, or does each group need the same amount of girls and boys as the other groups? I'm assuming it's the latter, as "all of the children are in a group, but I'll solve it both ways.
The first way, there can only be twelve groups. A boy and a girl in each group so it's equal, and 24 boys sit out.
The second way, the answer is 16. Each group will have two boys and one girl. So each group will have three kids. 12 plus 36 is 48, and 48 divided by 3 is 16.
Hope this helped, and feel free to ask more questions.
The answer is B because the slope is always the one multiplying the x and the 1 is negative because the equation is y-y1=m(x-x1)
