Answer:
7m^2+13
Step-by-step explanation:
7m^2 + 10m + 3
Add the numbers ;10+3=13
=7m^2+13
Hope this helped!!!
He had 20 questions to answer hope it helps
Answer:
x = 7.5
Step-by-step explanation:
Dilation is a transformation in which the size of a given figure is either increased or decreased by a scale factor.
Given that the length of sides of the smaller triangle are; 5, 13, 12.
Given also that the length of the dilated triangle are; x, blank, 18.
Comparing the length of the last sides of the two triangles, we have;
(scale factor x 12) + 12
= (
x 12) + 12
= 6 + 12
= 18
Thus the scale factor for the dilation is
. So that:
x = (
x 5) + 5
= 2.5 + 5
= 7.5
x = 7.5
And also,
blank = (
x 13) + 13
= 6.5 + 13
blank = 19.5
Therefore, the length of the sides of dilated triangle are: 7.5, 19.5, 18
Photomath is a good one. So is KhanAcademy, but I don't know if they have an app version of the website.
To get this, take 0.10 x 145 = 14.5