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Murljashka [212]
3 years ago
15

(16x²+24xy+9y²)÷(4x+3y)​

Mathematics
2 answers:
ruslelena [56]3 years ago
7 0

Answer:

4x+3y

Step-by-step explanation:

8_murik_8 [283]3 years ago
3 0

Answer:

4x + 3y

Step-by-step explanation:

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I need help preciate it
kipiarov [429]

Answer:  x=1

They all have 1 for their x coordinate; 'nuff said.

6 0
3 years ago
Find, correct to the nearest degree, the three angles of the triangle with the given vertices. A(1, 0, −1), B(4, −3, 0), C(1
zavuch27 [327]

Answer:

Angle at vertex  A : 59.2° B: 61.7° C : 59.1°

Step-by-step explanation:

1. First find the length of the vectors  

AB = B-A = (4-1, 3-0, 0-1) = (3, 3, -1)

AC = C-A = (1-1, 4-0, 3-1) = (0, 4, 2)

BC = C-B = (1-4, 4-3, 3-0) = (-3, 1, 3)

2. Find magnitude of the vectors

|AB| = √(3^2+3^2+〖(-1)〗^2 )=√19  

|AC| = √(0^2+4^2+2^2 )=2√5

|BC| = √(〖(-3)〗^2+1^2+3^2 )=√19

3. Find the angles between them

cos θ = (a.b)/(|a||b|) -----> θ = arc cos ((a.b)/(|a||b|))

AB, AC : θ =arc cos (AB.AC)/(|AB||AC|) = arc cos ( (3.0+3.4+ -1.2)/(√19  x 2√5)=  10/(2√95) ) =59.136, which is approximately 59.14°

AB, BC : θ =arc cos (AB.BC)/(|AB||BC|) = arc cos( (3.-3+3.1+ -1.3)/(√19  x √19)=  (-9)/19 ) = 118.27°

Because of the direction of BC is pointing relative to AB this is the angle outside the triangle, and we should find the supplementary angle.

180-118.27 = 61.73°

If we used –(BC) = CB in the formula (just negate the numerator) we would have gotten the correct angle on first try.

The 3rd angle should be what’s left after subtracting from 180°;

180-61.73-59.14 = 59.13 °

You can confirm using the formula again :

AC, BC : θ =arc cos (AC.BC)/(|AC||BC|) = arc cos( (0.-3+4.1+ 2.3)/(√19  x 2√5)=  10/(2√95) = 59.13°

Rounding everything up so they add up to 180 degrees we have Angle at vertex  A : 59.2° B: 61.7° C : 59.1°

7 0
3 years ago
HURRY FAST LOOK AT THE PHOTO TRUE OR FALSE
katovenus [111]
That is true. 4 and 5 are corresponding angles.
8 0
2 years ago
Math help, BOTH of these please!
Feliz [49]
#1 : ( 3 , - 2 )

~~

#2 : ( - 1 , 4 )

~~

I hope that helps you out!!

Any more questions, please feel free to ask me and I will gladly help you out!!

~Zoey
8 0
3 years ago
Read 2 more answers
The graphs of ​ f(x)=2x+4 ​ and ​ g(x)=10−4x ​ intersect at (1,6) . What is the solution of the equation 2x+4=10−4x ? Enter your
nordsb [41]
X = 1, since they intersect at (1,6) and are thus equal at that point
8 0
3 years ago
Read 2 more answers
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