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dlinn [17]
2 years ago
9

I need help with math

Mathematics
1 answer:
nevsk [136]2 years ago
6 0

Answer:

Step-by-step explanation:

<h3>7) The lengths of the tangent from an external point to a circle are  equal.</h3>

      2x - 1 = x + 10

           2x = x + 10 + 1

           2x = x + 11

      2x -x  = 11

             \sf \boxed{\bf x = 11}

8) Radius : XC

    Chord: CB

   Diameter : AB

  Name of the circle: X    {a circle is named by its center}

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A car travels at 65 miles per hour. Going through construction, it travels at 3/5 this speed. Write this fraction as a decimal a
nata0808 [166]
3/5 = 60/100 = 0.6

   65 
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=  00
3900

3900 / 100 = 39. 

While going through construction, the car travels at 39mph. 

8 0
3 years ago
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What is the slope of the line through (-3, 3) and (-1,-1)?
stira [4]
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5 0
2 years ago
a river flows due south at 1.2 miles per hour. A swimmer attempting to cross the river heads due east swiming at 3 miles per hou
kotegsom [21]

Answer:

The swimmer must move in the direction 338.2°

Step-by-step explanation:

Since the river flows due south at 1.2 miles per hour and the swimmer swims 3 miles per hour due east of the river, since their directions are perpendicular,  the resultant speed is the hypotenuse of the triangle formed by the two perpendicular directions.

The direction of the resultant speed is thus θ = tan⁻¹( vertical component/horizontal component) where vertical component = 1.2 mph due south = -1.2 mph and horizontal component = 3 mph due east = + 3 mph

So, θ = tan⁻¹(-1.2 mph/+ 3mph)

θ = tan⁻¹(-1.2/3)

θ = tan⁻¹(-0.4)

θ = -21.8°

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θ = 338.2°

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4 0
3 years ago
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I think the Samsung TV might have already had 5% off but I don't know if I interpreted the question right or not.

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3 0
2 years ago
Please help SO CONFUSED
gulaghasi [49]

Answer:

SOH-CAH-TOA

h = \sqrt{ 9^{2} +5^{2} }

~~~~~~~~~~

H= \sqrt{106}

O= 5

A= 9

~~~~~~~~~~~~~~~~

Sin = \frac{5}{\sqrt{106 }  }

Cos= \frac{9}{\sqrt{106 }  }

Tan = \frac{5}{9  }

Step-by-step explanation:

5 0
2 years ago
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