Answer:
4
Step-by-step explanation:
A simple matter of using Pythagoras. The hypotenuse is the ladder, and one of the legs is the wall, and we have to figure out the value of the other leg.
The Pythagorean formuda is (hypotenuse = a): a² + b² = c² (b and c are the other sides)
applying the values: a = 5 and b or c is 3 (I'll put b = 3)
5² = 3² + c²
25 = 9 + c²
25 - 9 = c²
16 = c²
√16 = c
4 = c
c = 4
There is a typo here. We cannot evaluate the given expression if there is no b and z to replace with the given values. Get it?
Answer: C.
Step-by-step explanation: um hm.
Answer:
x: 4metres
y: 8metres
Step-by-step explanation:
using scale 1:4
x:16 ÷ 4
y: 2×4
Answer:
Distance=![\sqrt{40}](https://tex.z-dn.net/?f=%5Csqrt%7B40%7D)
Step-by-step explanation:
The distance between two points in coordinate system can be find by using the distance formula;
The distance between two points:
and
can be find by:
![Distance=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}](https://tex.z-dn.net/?f=Distance%3D%5Csqrt%7B%28x_2-x_1%29%5E2%2B%28y_2-y_1%29%5E2%7D)
For the points:
and
![Distance=\sqrt{(4-(-2))^2+(3-1)^2} \\\\=\sqrt{(4+2)^2+(2)^2} \\\\=\sqrt{6^2+2^2}\\\\ =\sqrt{36+4}\\\\=\sqrt{40}](https://tex.z-dn.net/?f=Distance%3D%5Csqrt%7B%284-%28-2%29%29%5E2%2B%283-1%29%5E2%7D%20%5C%5C%5C%5C%3D%5Csqrt%7B%284%2B2%29%5E2%2B%282%29%5E2%7D%20%5C%5C%5C%5C%3D%5Csqrt%7B6%5E2%2B2%5E2%7D%5C%5C%5C%5C%20%3D%5Csqrt%7B36%2B4%7D%5C%5C%5C%5C%3D%5Csqrt%7B40%7D)
The distance between the points is:![\sqrt{40}](https://tex.z-dn.net/?f=%5Csqrt%7B40%7D)