1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
harkovskaia [24]
3 years ago
12

HELP PLEASEEE 9th Grade Geometry

Mathematics
1 answer:
Shtirlitz [24]3 years ago
6 0

Step-by-step explanation:

AD ≅ BC, Given

∠BCD ≅ ∠ADC, Given

CD ≅ CD, Reflexive property

ΔBCD ≅ ΔADC, SAS congruence

∠BDC ≅ ∠ACD, CPCTC

ΔECD is an isosceles triangle, definition of isosceles

DE ≅ CE, properties of isosceles triangles

You might be interested in
Please help me with this. It makes no sense to me.
lara [203]

Answer:

D

Step-by-step explanation:

<8 and <5 are vertical angles

6 0
3 years ago
I need help please explain how to do these two question as I did the rest of them. I just don't understand these.
Alexxandr [17]

Answer:

7. (4x +10)/(x^3 +3x^2 -16x -48)

9. -320/93

Step-by-step explanation:

7. As with adding any fractions, first you find a common denominator. When the fractions are rational expressions, it often helps to factor the denominators.

6/(x^2 -16) -2/(x^2 -x -12) = 6/((x -4)(x +4)) -2/((x -4)(x +3))

= (6(x +3) -2(x +4))/((x -4)(x +3)(x +4)) . . . . . using a common denominator

= (6x +18 -2x -8)/((x -4)(x +3)(x +4))

= (4x +10)/((x^2 -16)(x +3))

= (4x +10)/(x^3 +3x^2 -16x -48)

_____

9. First you simplify the denominator:

2/25 -5/16 = (2·16 -5·25)/(25·16) = -93/400

Then you perform the division. This can be done by multiplying by the inverse of the denominator.

(4/5)/(2/5 -5/16) = (4/5)·(-400/93) = -320/93

6 0
3 years ago
Set up a proportion and use cross multiplication to solve. 15 is what % of 60.
marissa [1.9K]
15 times percentage of 60 so i think it means it like 15/100 times 60/100
8 0
3 years ago
Read 2 more answers
Tina and maryann each play tennis. Maryann has won 5 more games than Tina. Is it possible for tina to have won games if the sum
Soloha48 [4]

Answer:

Tina won 5 games more than maryann, and the sum of their games is 29.. 29-5/2= 12

Maryann won 12 games while Tina won 12+5= 17 games.

4 0
3 years ago
Read 2 more answers
What is the next number in the sequence? 9….16….24….33…
Delvig [45]
43 ........................................
3 0
3 years ago
Other questions:
  • In a group of 60 children there are three times as many boys as girls.how many girls are there
    8·1 answer
  • (15 Points)
    10·2 answers
  • Alicia and her friends went out for lunch during the week. The bill for all four of the woman was $96. The women decided that th
    10·1 answer
  • An exterior angle of a triangle measures 125° and one of the remote interior angles measures 35°. The triangle must be:
    14·1 answer
  • PRUDLEM
    10·1 answer
  • A soccer game is 90 minutes long. 36 minutes have passed.
    12·1 answer
  • 1. Mrs. Verner's class has
    9·1 answer
  • Set up an integral for the volume with radi br and aR a=3 b=8
    11·1 answer
  • what is the equation in slope intercept form for the line that passes through the points (2,4) and (3,6)
    5·1 answer
  • Raphael buys one raffle ticket.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!