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3 years ago

10

Can someone help with these two PLZ.

1 answer:

Alexandra [31]3 years ago

7 0

Answer:

5. 76

6. 24

Step-by-step explanation:

5.

x + x = 152

2x = 152

x = 76

6.

2x + 3x = 120

5x = 120

x = 24

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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

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3 years ago

3y-5=5y<br><br> What is the value of y?

navik [9.2K]

The value of Y would be -5 = 2y

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3 years ago

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At the doctor's appointment a baby weight 10 pounds how many ounces did the baby weigh

Xelga [282]

Answer:

<u>160 ounces</u>

Step-by-step explanation:

A pound = 16 ounces

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3 years ago

use the identity below to complete the tasks a^3-b^3=(a-b)(a^2+ab+b^2) when using the identity for the difference of two cubes t

zheka24 [161]

Answer:

see explanation

Step-by-step explanation:

Given that the the difference of cubes is

a³ - b³ = (a - b)(a² + ab + b²)

Given

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with a = 4x² and b = 3, thus

= (4x²)³ - 3³

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3 years ago

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valkas [14]

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Step-by-step explanation:

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3 years ago