Answer:
person
Step-by-step explanation:
9 person × 5 hours
= 45 person-hours
Sorry if there any mistakes
Step-by-step explanation:
if the vertex A is (-2;5), vertex B is (1;3) and the vertex C is (-1;0), then
1) the lengths are (note, the side AC should be hypotenuse):
2) if to check the equation AB²+BC²=AC², then
13+13=26 - it is true.
It means, the triangle ΔABC is right triangle.
P.S. all the details are in the attachment.
Answer:
A. Angle A=80°
Angle I= 30°
B.y=6.39
x=9.43
Step-by-step explanation:
Here is the complete question.
Answer:
3.7 meters
Step-by-step explanation:
From the given information:
The radius is 3m
The central angle XYZ = 70°
To calculate the circumference of the circle:
C = 2 π r
C = 2 × 3.142 × 3
C = 18.852 m
Let's recall that:
The circumference length define a central angle of 360°
The approximate length of minor arc XZ can be determined as follow:
Suppose the ≅ length of minor arc XZ = Y
By applying proportion;
Y(360) = 18.852 × 70
Y = 1319.64/360
Y = 3.66
Y ≅ 3.7 m