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3 years ago

13

Two cars start at the same point. One travels north at 65 km/h and the other travels east at 50 km/h. How far are they apart aft

er 30 minutes?

1 answer:

Naya [18.7K]3 years ago

7 0

Answer:

1they are 15 kilometers apart

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is picking out some movies to rent, primarily interested in horror films and comedies. He has narrowed down his selections to 15

tigry1 [53]

Answer: 31,365

Step-by-step explanation:

Given : The number of horror films = 15

The number of comedies = 18

Then , the number of different combinations of 4 movies can he rent if he wants at least two comedies is given by :-

$^{18}C_2\times ^{15}C_2+^{18}C_3\times ^{15}C_1+^{18}C_4\times ^{15}C_0\\\\=\dfrac{18!}{2!(18-2)!}\times\dfrac{15!}{2!(15-2)!}+\dfrac{18!}{3!(18-3)!}\times\dfrac{15!}{1!(15-1)!}+\dfrac{18!}{4!(18-4)!}\times\dfrac{15!}{0!(15-0)!}\\\\=16065+12240+3060=31365$

Hence, the number of different combinations of 4 movies can he rent if he wants at least two comedies = 31,365

7 0

3 years ago

Abigail redecorates her house. A scale drawing of her house can be seen above. If each 6cm on the scale drawing equals 12ft, wha

mihalych1998 [28]

If 6cm=12ft, then if you reduce that you get 1cm=2ft so multiply each measurement by 2 getting 9cm=18ft, 7cm=14ft, 10cm=20ft, 8cm=16ft

7 0

3 years ago

What the answer to this <br><br><br> -3+u=-20

yawa3891 [41]

- 3 + u = - 20

u = - 20 + 3

u = -17

hope this helps!.

5 0

3 years ago

Read 2 more answers

Select the correct answer. Vincent wants to construct a regular hexagon inscribed in a circle. He draws a circle on a piece of p

uranmaximum [27]

Answer:

B.

Step-by-step explanation:

4 0

3 years ago

A football is kicked with a speed of 18.0 m/s at an angle of 36.9° to the horizontal.

nata0808 [166]

Answer:

A

Step-by-step explanation:

horizontal component=18cos 36.9°≈14.39 m/s≈14.4 m/s

Vertical component=18 sin 36.9°≈10.81 m/s≈10.8 m/s

8 0

2 years ago