# Points B and D are points of tangency. Find the value of x. 12210204011.jpg

Question
Circles
Points B and D are points of tangency. Find the value of x.

2021-03-10
3x+10=7x-6
3x=7x-16
-4x=-16
x=4

### Relevant Questions

Points B and D are points of tangency. Find the value of x.

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Consider the curves in the first quadrant that have equationsy=Aexp(7x), where A is a positive constant. Different valuesof A give different curves. The curves form a family,F. Let P=(6,6). Let C be the number of the family Fthat goes through P.
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[Pic] This arch is formed by an arc of a circle. What is the radius of the circle?
A. 1.500 m
B. 1.875 m
C. 3.000 m
D. 3.750 m
Given the following formula, solve for r. $$\displaystyle{C}={2}π{r}$$
A. $$\displaystyle{r}={2}π{C}$$
B. $$\displaystyle{r}=\frac{{{C}−π}}{{2}}$$
C. $$\displaystyle{r}=\frac{{C}}{{2}}π$$
D. $$\displaystyle{r}={C}−{2}π$$