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3 years ago

What is 2 1/3 divided by 3 1/2?

Mathematics

1 answer:

maria [59]3 years ago

3 0

Answer:

2/3

Step-by-step explanation:

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R (-3,1) and S (-1,3) are points on a circle. If RS is a diameter, find the equation of the circle.

ELEN [110]

Answer:

$\sf (x+2)^2+(y-2)^2=2$

Step-by-step explanation:

If RS is the diameter of the circle, then the midpoint of RS will be the center of the circle.

$\sf midpoint=\left(\dfrac{x_s-x_r}{2}+x_r,\dfrac{y_s-y_r}{2}+y_r \right)$

$\sf =\left(\dfrac{-1-(-3)}{2}+(-3),\dfrac{3-1}{2}+1 \right)$

$\sf =(-2, 2)$

Equation of a circle: $\sf (x-h)^2+(y-k)^2=r^2$

(where (h, k) is the center and r is the radius)

Substituting found center (-2, 2) into the equation of a circle:

$\sf \implies (x-(-2))^2+(y-2)^2=r^2$

$\sf \implies (x+2)^2+(y-2)^2=r^2$

To find $\sf r^2$ , simply substitute one of the points into the equation and solve:

$\sf \implies (-3+2)^2+(1-2)^2=r^2$

$\sf \implies 1+1=r^2$

$\sf \implies r^2=2$

Therefore, the equation of the circle is:

$\sf (x+2)^2+(y-2)^2=2$

4 0

2 years ago

−4t + 9 ≥ −7 PLEASE HELPPP

stellarik [79]

Answer:

t is less than or equal to 4

Step-by-step explanation:

7 0

3 years ago

If 3x+5=11 what is the value of x-2

Alina [70]

Answer:

Step-by-step explanation:

x = 2

2 x 3 = 6 + 5 = 11

2 - 2 = 0

7 0

3 years ago

I need help if y’all want y’all can help me I need help

Snezhnost [94]

The answer is D. 42

A triangle equals 180 in total so what you would do it subtract 122 from 180 because 180 is also the angle of a straight line. You would get 58 then you add 58 and 80 to get 138. Subtract 138 from 180 and you get your answer of 42

6 0

3 years ago

The sum of two consecutive odd integers is 244. what is the smaller integer? 119 125 123 121

Alexus [3.1K]

Solve is in the picture

Good luck :)

7 0

3 years ago

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