All categories

3 years ago

❗️Help needed please ❗️

Mathematics

2 answers:

elixir [45]3 years ago

7 0

Answer:

prove it by S.S.S axiom bro

Step-by-step explanation:

statement reason

1.in triangle ADB and ADC

a. AB=AC a.given

b.BD=CD b. radii of same circle

c. AD=AD c. common side

2. ∵triangle ADB is congurent to 2. by S.S.S axiom

ADC

cupoosta [38]3 years ago

5 0

Answer:

AD cuts BC at I => I is the midpoint of BC => BI = CI

ΔAIB and ΔAIC have:

AB = AC

BI = CI

m∠ABC = m∠ACB ( because ΔABC is a isosceles triangle)

=> ΔAIB ≅ ΔAIC (sas)

=> m∠BAD = m∠CAD

ΔADB and ΔADC have:

m∠BAD = m∠CAD

AB = AC

AD is the common edge

=> ΔADB ≅ ΔADC (sas)

Step-by-step explanation:

You might be interested in

Tell whether –4 is a solution of the inequality.<br> —3x + 2 < 15. YES OR NO?

NikAS [45]

Answer:

YES

Step-by-step explanation:

-3 times -4 = 12

12 + 2 = 14

14 < 15

7 0

3 years ago

Which number is composite 2, 5, 11, 9,

kykrilka [37]

Answer:

Step-by-step explanation:

3*3 =9

4 0

3 years ago

Please help! I don't understand this at all!

liq [111]

Answer:

Step-by-step explanation:

jgyyjjjf

5 0

3 years ago

A table top in the shape of a trapezoid has an area of 2250 square centimeters and the shorter base is 80 centimeters. The longe

Citrus2011 [14]

The area of a trapezoid has a formula of:
Area = (a + b) h / 2

Using the formula, we can easily find the height of the trapezoid.
<span>Area = (a + b) h / 2
</span>2250 = (80 + 100) h / 2
2250 = 180h / 2
2250 = 90h
h = 25 centimeters

So the height of the trapezoid is 25 centimeters.

3 0

3 years ago

In Grafton, a rural area in Vermont, the distance (in meters) between telephone poles has a uniform distribution between 40 and

coldgirl [10]

Answer:

a) 60% probability that the distance is environment friendly.

b) The mean of the distances between the telephone poles is 52.5 meters.

c) The standard deviation of the distance between the telephone poles is 7.22 meters.

Step-by-step explanation:

An uniform probability is a case of probability in which each outcome is equally as likely.

For this situation, we have a lower limit of the distribution that we call a and an upper limit that we call b.

The probability that we find a value X lower than x is given by the following formula.

$P(X \leq x) = \frac{x - a}{b-a}$

Uniform distribution between 40 and 65 meters.

This means that $a = 40, b = 65$

a) Any distance between poles greater than 50 meters is considered to be environment friendly. What is the probability that the distance is environment friendly?

This is $P(X > 50)$