Mathematics, 14.07.2019 15:30 breanastone15
Acircle is centered at the point (-7, -1) and passes through the point (8, 7). the radius of the circle is units. the point (-15, lies on this circle.
Answers: 1
![\bf ~~~~~~~~~~~~\textit{distance between 2 points}\\\\(\stackrel{x_1}{-7}~,~\stackrel{y_1}{-1})\qquad (\stackrel{x_2}{8}~,~\stackrel{y_2}{7})\qquad \qquad d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2}\\\\\\\stackrel{radius}{r}=\sqrt{[8-(-7)]^2+[7-(-1)]^2}\implies r=\sqrt{(8+7)^2+(7+1)^2}\\\\\\r=\sqrt{15^2+8^2}\implies r=\sqrt{289}\implies r=17](/tpl/images/0089/1395/b65b6.png)
![\bf ~~~~~~~~~~~~\textit{distance between 2 points}\\\\\stackrel{center}{(\stackrel{x_1}{-7}~,~\stackrel{y_1}{-1})}\qquad (\stackrel{x_2}{-15}~,~\stackrel{y_2}{y})\\\\\\\stackrel{r}{17}=\sqrt{[-15-(-7)]^2+[y-(-1)]^2}\\\\\\17=\sqrt{(-15+7)^2+(y+1)^2}\implies 17^2=(-15+7)^2+(y+1)^2\\\\\\289=(-8)^2+(y+1)^2\implies 289=64+(y+1)^2\\\\\\225=(y+1)^2\implies \sqrt{225}=y+1\implies 15=y+1\implies 14=y](/tpl/images/0089/1395/47edc.png)
Another question on Mathematics
Mathematics, 20.06.2019 18:04
The triangles are similar. what is the value of x? enter your answer in the box. x = two right triangles. the larger right triangle is labeled x on the longer leg, 12 on the shorter leg and 20 on the hypotenuse. the smaller triangle is labeled 4 on the longer leg, 3 on the shorter leg, and 5 on the hypotenuse.
Answers: 2
Mathematics, 21.06.2019 20:40
In each of the cases that follow, the magnitude of a vector is given along with the counterclockwise angle it makes with the +x axis. use trigonometry to find the x and y components of the vector. also, sketch each vector approximately to scale to see if your calculated answers seem reasonable. (a) 50.0 n at 60.0Β°, (b) 75 m/ s at 5Ο/ 6 rad, (c) 254 lb at 325Β°, (d) 69 km at 1.1Ο rad.
Answers: 3
Mathematics, 21.06.2019 21:00
If 30 lb of rice and 30 lb of potatoes cost ? $27.60? , and 20 lb of rice and 12 lb of potatoes cost ? $15.04? , how much will 10 lb of rice and 50 lb of potatoes? cost?
Answers: 1
Mathematics, 21.06.2019 23:30
Astraight water slide is 175 feet above ground and is 200 feet long. what is the angle of depression to the bottom of the slide?
Answers: 1
You know the right answer?
Acircle is centered at the point (-7, -1) and passes through the point (8, 7). the radius of the cir...
Questions
Geography, 26.08.2019 08:20
Mathematics, 26.08.2019 08:20
Mathematics, 26.08.2019 08:20
Mathematics, 26.08.2019 08:20
Mathematics, 26.08.2019 08:20
French, 26.08.2019 08:20
Mathematics, 26.08.2019 08:20
Mathematics, 26.08.2019 08:20
Mathematics, 26.08.2019 08:20
History, 26.08.2019 08:20
Social Studies, 26.08.2019 08:20
Chemistry, 26.08.2019 08:20
Mathematics, 26.08.2019 08:20
Social Studies, 26.08.2019 08:20
Mathematics, 26.08.2019 08:20
