Answer:
<h2>NOT</h2>
Step-by-step explanation:
Put x = 1, y = -1 and z = -2 to the equation 3x - 3y - z = 2, and check the equality:
3(1) - 3(-1) - (-2) = 3 + 3 + 2 = 8 ≠ 2
The measure of the vertex angle of the isosceles Δ is 96°
Step-by-step explanation:
In the isosceles triangle
- Two sides are equal in lengths
- The angle between the two equal sides is called vertex angle
- The other two angles are called base angles
- The base angles are equal in measure
∵ The measure of one of the base angles of an isosceles Δ = 42°
- The base angles are equal in measure
∴ The measure of the other base angle = 42°
∵ The sum of the measures of the interior angles of any Δ = 180°
∴ 42 + 42 + measure of the vertex angle = 180
∴ 84 + measure of the vertex angle = 180
- Subtract 84 from both sides
∴ measure of the vertex angle = 96°
The measure of the vertex angle of the isosceles Δ is 96°
Learn more:
You can learn more about the triangles in brainly.com/question/6530759
#LearnwithBrainly
Answer:
She will have $90 left over!
Step-by-step explanation:
Hope this is correct!
The numbers are 16 and 4
Reason: 16+4=20 and (16*3)-(4*2)=48-8=40
