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mote1985 [20]
3 years ago
12

Given: <1 congruent to <2prove: AB is congruent to CB​

Mathematics
1 answer:
Viktor [21]3 years ago
8 0

Answer:

Because 3 and 2 are vertical angles

Step-by-step explanation:

Vertical angles are always equal or congruent

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Solve. 3x2 + 4x = –5 <br> using quadratic equation ...?
cupoosta [38]
3x^2 + 4x - 5 = 0 
x = [-b ±√(b^2 - 4ac)]/2a 

a = 3 
b = 4 
c = -5 

x = [-4 ±√(16 + 60)]/6 
x = [-4 ±√76]/6 
x = [-4 ±√(2^2 * 19)]/6 
x = [-4 ±2√19]/6 
x = [-2 ±√19]/3 

x = [-2 + √19]/3 
x = [-2 + 4.35]/3 
x = 2.35/3 
x = 0.78 (rounded to the nearest hundredth) 

x = [-2 - ±√19]/3 
x = [-2 - 4.35]/3 
x = -6.35/3 
x = -2.12 (rounded to the nearest hundredth) 

<span>∴ x = -2.12 , 0.78 (rounded to the nearest hundredth)</span>
6 0
3 years ago
in the following equation A &amp; B are both integers. What is the value of a? What is the value of b?
MariettaO [177]
3ax-8a=b-18x
3ax+18x=b+8a
3x(a+6)=b+8a

3x=(b+8a)/(a+6)
x=(b+8a)/3(a+6)
3a*(b+8a)/3(a+6)=b-18*(b+8a)/3(a+6)
a(b+8a)/(a+6)=b-6(b+8a)/(a+6)
a(b+8a)=b(a+6)-6(b+8a)
ab+8a^2=ab+6b-6b-48a
ab+8a^2=ab-48a
8a^2=-48a
8a^2+48a=0
8a(a+6)=0 so a=0,-6
0=b-18x or -18x+48=b-18x
-b=-18x or 48=b
let b=18 if a =-6
8 0
3 years ago
What is the mechanical energy
Sergeu [11.5K]

Answer:

In physical sciences, mechanical energy is the sum of potential energy and kinetic energy. It is the macroscopic energy associated with a system. The principle of conservation of mechanical energy states that if an isolated system is subject only to conservative forces, then the mechanical energy is constant.

hope it helps ;)

6 0
2 years ago
I NEED HELP PLEASE, THANKS!
Finger [1]

Answer:

the 3rd option is the answer

Step-by-step explanation:

I hope the attached file is self-explanatory

3 0
3 years ago
Pls help me step by step faster if you can
Veronika [31]

Answer:

Step-by-step explanation:

If you meant to type    x+1<21, then we simplify this inequality by subtracting 1 from both sides, ending up with x < 20.

I do not recognize what your "4" represents.

6 0
3 years ago
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