<span> ∠ACB = 258 is your answer</span>
Step-by-step explanation:
square both sides
expand
simplify
0=x^2+2x-3
Factor
0=(x+3)(x-1)
the possible values for x are -3 and 1
Hope that helps :)
Answer is
<span>C. reals all integers.
</span>the range <span>of the function f(x) =2[[x]] </span><span>is all integers, include the set of all even, odd numbers, positive and negative and even 0
</span>
Answer:
A. The center of dilation is point C.
B. It is a reduction.
E. The scale factor is 2/5.
Step-by-step explanation:
The center is shown as C. You can see this from the line segments they drew through C, the image, and the pre-image.
The pre-image is the image before the dialation. The pre-image here is XYZ.
The image is the image after dialation. The image is X'Y'Z'.
If you look at the pre-image XYZ and then it's image X'Y'Z', ask yourself the image get smaller or larger. To me I see a larger triangle being reduce to a smaller triangle so this is a reduction.
The scale factor cannot be bigger than 1 because the image shrunk so D is definitely not a possibility.
E. is a possibility but let's actually find the scale factor to see.
We can calculate or or to find out what the scale factor is.
.
The scale factor is 2/5.
Well its pretty hard let me see its 8 by cm and 27 by aera