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3 years ago

Triangle ABC is transformed to triangle A′B′C′, as shown below:

Mathematics

1 answer:

Montano1993 [528]3 years ago

3 0

Answer:

C. m<CAB = m<C'A'B'

Step-by-step explanation:

Triangle ABC looks like it was only reflected over the line y = 0. If the triangle was only reflected then the triangles should be congruent to each other.

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Your family needs a set of 4 tires. which of the following deals would you prefer. explain. 1. Buy 3 get one free,

scZoUnD [109]

Number 1 and number 3 are the same because if you are purchasing three tires that is 75% off the tires you need and one of them you get free. the free one becomes the overall discount of 25% off. number 3 is the same, the one quarter represents 25% off of the purchase.

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3 years ago

In a recent year in Tennessee, there were 55 telephones for every 100 people. What was the ratio of phones to people?

Feliz [49]

Answer:

Step-by-step explanation:

I think that it would be 55/100

4 0

3 years ago

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A bag contains white,blue and red balls ratio8:3:2 and there are 10 red balls,if 10 white balls and 10 blue balls are removed fr

dmitriy555 [2]

Answer:

New ratio ( white,blue and red) = 6:1:2

Step-by-step explanation:

Given:

Old ratio ( white,blue and red) = 8:3:2

Number of red balls = 10

Removed balls = 10 white , 10 blue

Find:

New ratio ( white,blue and red)

Computation:

Assume total number of balls = x

So,

Number of total balls = 2x / 13 = 10

Number of total balls = 65

Number of white balls = 40

Number of blue balls = 15

So,

Number of new white balls = 40 - 10 = 30

Number of new blue balls = 15 - 10 = 5

New ratio ( white,blue and red) = 30 : 5 : 10

New ratio ( white,blue and red) = 6:1:2

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3 years ago

A commercial jetliner with an air speed of 640 mi/hr leaves Chicago and flies due west at the same time that a small single-engi

Vilka [71]

Answer:

40 mph

Step-by-step explanation:

The speed of separation of the two airplanes traveling in opposite directions is the sum of their respective airspeeds:

640 mi/h + 180 mi/h = 820 mi/h

At the time of interest, their separation distance is ...

1500 mi + 550 mi = 2050 mi

Then the time it took to achieve that separation was ...

time = distance/speed = (2050 mi)/(820 mi/h) = 2.5 h

The actual ground speed of the jetliner was ...

speed = distance/time = 1500 mi/(2.5 h) = 600 mi/h

Since the airspeed of the jet is 640 mi/h, the speed of the air must have subtracted 40 mi/h from its headway.

The wind from the west is 40 mi/h.

_____

<em>Check</em>

The wind adds to the speed of the small plane, so its ground speed is ...

180 mph +40 mph = 220 mph

and the distance it travels in 2.5 hours is ...

distance = speed × time = (220 mi/h)(2.5 h) = 550 mi

This value matches the problem statement, so the answer checks OK.

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3 years ago

Nancy is 5 years younger than her brother Stan. Last year she was twice as young as he was. How old is each of them now?

otez555 [7]

Nancy: 5 Stan: 10

5 is 5 years
younger then Stan
And 5 is twice as
young as 10

4 0

4 years ago

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