Answer:
a. 8
b. 114
Step-by-step explanation:
a.
36/6 = 48/x
36x = 288
x = 8
b.
12/72 = 19/x
1/6 = 19/x
x = 114
Answer: The area of triangle ΔXYZ is 12 square inches.
Step-by-step explanation:
Since we have given that
RS = 3 inches
XY = 2 inches
Area of ΔRST = 27 in²
Since ΔRST is similar to ΔXYZ.
So, using the "Area similarity theorem":
Hence, the area of triangle ΔXYZ is 12 square inches.
Answer:
y=4x-27
Step-by-step explanation:
Parallel lines have the same slope, so lets use 4 as the slope.
Plug in the slope, and the two points into point-slope form to find the y-intercept:
<u>y+3=4(x-6)</u>
1) Distribute the 4 to x and -6:
y+3=4x-24
2) Subtract 3 from both sides:
y=4x-27
Answer:
Step-by-step explanation:
Note that 20 (an approximation for 205) less 4 (an approx. for 431) comes out to 16.
This tells us that the proper placement of the decimals is
20.50
- 4.31
----------
and this comes out to 16.19.