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3 years ago

HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP

Mathematics

2 answers:

ioda3 years ago

7 0

Answer: The first option with sss as part of the proof

Step-by-step explanation:

The lengths of the arcs drawn in the constructions are the same, so when the line is drawn, the lengths of the sides will all be the same. SSS is proof of congruence.

CPCTC is an acronym for "corresponding parts of congruent triangles are congruent."

Cerrena [4.2K]3 years ago

5 0

Answer: the first option with sss as part of the proof
explanation :

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The angles and the answers i don’t know any of this

ser-zykov [4K]

Answer:

5- 25

6- 27

7- 73

8- 150

9- 71

10- 99

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4 years ago

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HACTEHA [7]

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Step-by-step explanation:

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3 years ago

In ΔKLM, m = 160 cm, ∠M=145° and ∠K=28°. Find the length of l, to the nearest 10th of a centimeter.

Montano1993 [528]

Answer:

34.0 m

Step-by-step explanation:

The total angle sum in a triangle should be 180° hence the missing angle will be given by

180°-145°-28°=7°

Using sine rule

$\frac {m}{sin M}=\frac {l}{sin L}=\frac {k}{sin K}$

By substituting 160 for m, 145° for M and 7° for L then

$\frac {160}{sin 145^{\circ}}=\frac {l}{sin 7^{\circ}}$

Making l the subject then

$l=\frac {160 sin 7^{\circ}}{sin 145^{\circ}}=33.9956345990643m\\l\approx 34.0m$

3 0

3 years ago

Find three ratios equivalent to the ratio described in the situation the ratio of cups of water to cups of milk in a recipe 1 to

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10 + 10 = 21

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6 0

3 years ago

At a museum you can see the four cable lines that are used to pull cable cars up and down a hill. Each cable travels at a speed

borishaifa [10]

Answer:

54.514 rev/min

Step-by-step explanation:

Data provided in the question:

Speed of the cable car = 12.65 miles per hour

Diameter of the rotating wheel, d = 6.5 feet

Now,

The speed of rotation of the wheel will be equal to the speed of the cable car

thus,

The speed of rotation of the wheel = 12.65 miles per hour

also,

1 miles = 5280 feets

1 hour = 60 minutes

Thus,

The speed of rotation of the wheel = $\frac{12.65\times5280}{60}$

= 1113.2 ft/ min

Circumference of the wheel = πd

= 6.5π feet

= 20.42 feet

Therefore,

The speed of rotation of the wheel in revolutions per minute

= 1113.2 ÷ 20.42 rev/min

= 54.514 rev/min

6 0

4 years ago