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Marrrta [24]
3 years ago
8

Which postulate can be used to prove that ABD and CBD are congruent given that BD and AC and BD bisects AC

Mathematics
1 answer:
laila [671]3 years ago
8 0

Answer:

SAS

Step-by-step explanation:

Here we are given two situations:

BD⊥AC

This indicates that angle ADB and CDB are 90 degrees.

Aso we are given that BD bisects AC.

This indicates that AD=DC

So in triangles ADB and CDB , we have

BD=BD (common) (Side)

angle ADB= angle CDB (Angle)

AD=DC (side)


So the two triangles are congruent by SAS congruency.

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Answer:

She will have 8 pieces.

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3 years ago
Read 2 more answers
A football team plays in a large stadium. With a ticket price of ​$19​, the average attendance at recent games has been 50 comma
tino4ka555 [31]

Answer:

Part 1: N(x) = 50,000 - 300(x-19)

Part 2: R(x) =-300x² + 55700x

Step-by-step explanation:

Given,

The original price of each ticket = $ 19,

The original attendance = 50,000

Part 1 :

∵ For the each​ $1 increase in the ticket​ price, attendance decreases by 300.

Let x represents the price of each ticket after increment,

Thus, if price increment = (x-19) dollars,

New attendance, N(x) = 50,000 - 300(x-19)

Part 2 :

Since, revenue = price of each ticket × attendance

Thus, the revenue from the football​ game,

R(x) = x(50,000 - 300(x-19))

R(x) = 50000x - 300x²+ 5700x

⇒ R(x) =-300x² + 55700x

8 0
3 years ago
a car takes 8 hours to reach to its destination with a speed of 75km/hr. how much time will it take if the speed is 60km/hr?​
r-ruslan [8.4K]

Answer:

10 hours

Step-by-step explanation:

speed = distance/time

s = d/t

d = st

d = 75 km/h * 8 h = 600 km

t = d/s

t = 600 km/(60 km/h) = 10 h

Answer: 10 hours

6 0
3 years ago
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