Answer:
3a^2 + 20a + 34
Step-by-step explanation:
(2a + 5)^2 = 4a^2 + 20a + 25
(a +3)(a - 3) = a^2 - 9
Put these two partial answers together.
4a^2 + 20a + 25 -(a^2 -9 ) Remove the brackets.
4a^2 + 20a + 25 - a^2 + 9
4a^2 + 20a + 25 - a^2 + 9
3a^2 + 20a + 34
Answer:
Angle 2 measures 58°
Step-by-step explanation:
Sum of all three angles formed = 180
Because the sum of angles on a straight line is always 180
Angle 1 =3x-4
Angle 2 = 4x+10
Angle 3= 90° (given)
So,
90+3x-4+4x+10=180
(4x+3x)+(90+10-4)= 180
7x+96=180
Bring 96 to the other side, making it negative,
7x = 180-96 = 84
x = 12
Therefore angle 2
= 4x+10
= (4)(12)+10
=48+10
=58°
X= 11 so whatever other equation that has x= 11 would be the answer but I can't see the others...
Answer:
C. All the point in the pre-image are shifted the same distance.
Step-by-step explanation:
It's not A because for example, a rotation also preserves the angles and sides.
It's not B because the points stay in the same plane for all transformations.
It.s not D - the orientation is the same in a rotation.
4(x+3) = 16
First divide by 4 on both sides
x+3 = 4
Then subtract 3 from both sides
x = 1
Then check your work
4(1+3) = 16
4(4) = 16
16 = 16
Hope this helped! :)
