Answer:
The last one.
Step-by-step explanation:
The 1/2 slope has to be positive because the graph goes upward from the left to the right. If you plug in (3, -2), a possible point on the line, you get that 1=1, which is seemingly true.
Answer:
20-foot flag
Step-by-step explanation:
12-foot flag casts 4.8-foot shadow,
which also means that:
4.8-foot shadow is casted by a 12-foot flag
Lets start by find the length of the flag that will cast a 1-foot shadow.
4.8-foot shadow -----> 12-foot flag
1-foot shadow -----> 12 ÷ 4.8 = 2.5-foot flag
Now we can find the flag that will cast a 8-foot shadow.
1-foot shadow -----> 2.5-foot flag
8-foot shadow -----> 8 x 2.5-foot = 20-foot flag
<span>i got --> x= (0, -1) </span>
Answer:
r = 5mm
Step-by-step explanation:
When two shapes are similar, They are the same shape but with 1 or more basic transformations(dilations, reflections, rotations, and translations.). All sides on the new shape (green) are similar to the original shape (blue), meaning they were all dilated by the same scale factor.
First, we need to find our scale factor. To find our scale factor, take 10 and divide it by 4 (These sides are similar and we have established values so we can be sure our scale factor is correct by using these.).
10/4 = 2.5
So, our scale factor is 2.5.
Now, to solve for r, we need to find it's similar side (in this case it's 2 mm.).
Now, simply multiply the original size by our scale factor.
2 * 2.5 = 5.
So, r = 5 mm (Don't forget units, teachers hate that.)