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2 years ago

Given: Circle A externally tangent to Circle B.

Mathematics

2 answers:

adoni [48]2 years ago

6 0

Answer:

Step-by-step explanation:

kati45 [8]2 years ago

5 0

there are only 2 possible common tangents to circles A and B can exist

ok done. Thank to me :>

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The wind speed near the center of a tornado is represented by the equation S=93logd+65, where d is the distance, in miles, that

dezoksy [38]

Answer:

Therefore,

Wind speed of a Tornado when it travels 4 miles is 121.0 miles per hour.

Step-by-step explanation:

Given:

The wind speed near the center of a tornado is represented by the equation,

$S=93\log d+65$

Where,

d = the distance, in miles

S = the wind speed, in miles per hour.

To Find:

S = ? at d = 4 miles

Solution:

We have

$S=93\log d+65$ .........Given

Substitute d = 4 in above equation we get,

$S=93\log 4 + 65=93\times 0.602 +65=120.99$

Rounding the answer to the nearest tenth we have

$S=121.0\ mph$

Therefore,

Wind speed of a Tornado when it travels 4 miles is 121.0 miles per hour.

4 0

3 years ago

Solve the equation by using quadratic formula . Show your work! Answer maybe in radical or decimal form .

Lorico [155]

Answer:

$x_1=\frac{-2+\sqrt{14}}{2}\approx 0.871,x_2=\frac{-2-\sqrt{14}}{2}\approx-2.871$

Step-by-step explanation:

$2x^2+4x-5=0$

$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

$x=\frac{-4\pm\sqrt{4^2-4(2)(-5)}}{2(2)}$

$x=\frac{-4\pm\sqrt{16+40}}{4}$

$x=\frac{-4\pm\sqrt{56}}{4}$

$x=\frac{-4\pm2\sqrt{14}}{4}$

$x=\frac{-2\pm\sqrt{14}}{2}$

$x_1=\frac{-2+\sqrt{14}}{2}\approx 0.871,x_2=\frac{-2-\sqrt{14}}{2}\approx-2.871$

5 0

3 years ago

Rico spent $87.00 to go to the movies on Friday night. He spent $25.75 on popcorn and drinks and paid $12.25 for each movie tick

Svetlanka [38]

You haven't given the equations I'm supposed to chose from, but the answer would be

25.72 + 12.25x = 87.00 is the equation.

He spent a total of $87

The popcorn was 25.75 and each ticket was 12.25, which means we must add the amounts they costs and multiply how my tickets he bought, which is x.

5 is the solution

7 0

3 years ago

Read 2 more answers

Solve the system by the method of elimination.

likoan [24]

Answer:

no solution

Step-by-step explanation:

x-y = 2

-4x +4y = 4

Multiply the first equation by 4

4(x-y) = 2*4

4x -4y = 8

Add this to the second equation

4x -4y = 8

-4x +4y = 4

------------------------

0x + 0y = 12

0 =12 is never true so there is no solution

7 0

4 years ago

Read 2 more answers

Please help! Geometry!

sasho [114]

Sorry I couldn’t answer but I can ask my friend to answer

4 0

3 years ago