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2 years ago

−2.4(m−2/3)=−9 Please help! I can't figure it out!

Mathematics

2 answers:

notsponge [240]2 years ago

7 0

Answer:

−2.4(m−2/3)=−9 First you do the problem inside the parenthesis. Then figure out the answer for that and then -2.4 with whatever the answer was. then you will have the answer

Step-by-step explanation:

hope this hels

Sonja [21]2 years ago

3 0

Answer: 4.416 (the 6 should have a line on top to show it goes on)

Step-by-step explanation:

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What is 2 plus 2 plus 2 times 6 times 7

Oduvanchick [21]

2+2+(2*6*7)
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3 years ago

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Delvig [45]

S+g=316 "s"=strawberry "g"=grape
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plug in for "g" to find "s"
s+(52+s)=316
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3 years ago

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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.

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

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

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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:

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

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2 years ago

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den301095 [7]

Answer:

Step-by-step explanation:

3 * 4 = 12 - 6

12 = 6

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