Answer:
A
Step-by-step explanation:
for a right angled triangle, the sum of the square of the two sides should be equal to the square of the hypotenuse. If this rule does not hold, the dimensions do not represent the side of a right angled triangle.
The Pythagoras theorem : a² + b² = c²
where a = length
b = base
c = hypotenuse
4² + 10² ≠ 16²
6² + 12² = 13²
7² + 24² = 25²
8² + 15² = 17²
Answer:
C.
Step-by-step explanation:
None of these numbers have perfect square roots, but is the closest to the point on the number line. The square root of is 6. 244997998398398. Rounding that number we get approximately 6.3.
Answer:
See step-by-step explanation
Step-by-step explanation:
Question 3: (4, -3)
Solving through elimination: Multiply the first equation by -3.
-3x+6y=-30
3x-5y = 27
Add. The x drops out.
y= -3
Substitute -3 in for y.
x-2y=10
x-2(-3)=10
x+6=10
x=4
Question 4: (2,5)
Solve through elimination: Multiply the second equation with 3.
![\frac{3}{2} x+y=8](https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B2%7D%20x%2By%3D8)
![\frac{9}{4} x-y=-\frac{1}{2}](https://tex.z-dn.net/?f=%5Cfrac%7B9%7D%7B4%7D%20x-y%3D-%5Cfrac%7B1%7D%7B2%7D)
3/2= 6/4
15/4x=7.5
x=2
3/2 (2) + y = 8
3+ y =8
y=5
Question 5: (6,4)
Use your graph to graph.
![y=-\frac{1}{3} x+6](https://tex.z-dn.net/?f=y%3D-%5Cfrac%7B1%7D%7B3%7D%20x%2B6)
Slope of -1/3
Y-intercept of 6 (0,6)
X-intercept of 18 (18,0)
![y=\frac{3}{2} x-5](https://tex.z-dn.net/?f=y%3D%5Cfrac%7B3%7D%7B2%7D%20x-5)
Slope of 3/2
Y-intercept of -5 (0,-5)
X-intercept of
(
Question 6: (5, -7)
![Ax+2By=-41](https://tex.z-dn.net/?f=Ax%2B2By%3D-41)
![4Ax-By=88](https://tex.z-dn.net/?f=4Ax-By%3D88)
![3A+2B(4)=-41](https://tex.z-dn.net/?f=3A%2B2B%284%29%3D-41)
![4A(3)-B(4)=88](https://tex.z-dn.net/?f=4A%283%29-B%284%29%3D88)
Solve by substitution:
Words of encouragement:
Good luck!
Im gonna need to know what the choices are
Answer:$450
Step-by-step explanation: