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3 years ago

7

20 POINTS!! Betty arranged equal numbers of movies on four shelves of a shelving unit and placed 6 of her favorite movies on the

top shelf. If x is the number of movies on each shelf, the expression for the total number of movies on the shelving unit is 4x + 6.
If each of the 4 shelves holds 12 movies, how many movies does Betty have on her shelving unit? Show your work.

1 answer:

Bess [88]3 years ago

6 0

Answer:

54 movies

Step-by-step explanation:

shelving unit has 4x + 6 movies

and each holds 12 movies,

then x =12

Then solve 4x + 6 for x= 12

4(12) + 6 = 54

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Aleonysh [2.5K]

Answer:

it's the last one *25,000 J

Step-by-step explanation:

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3 years ago

Would you please help me with this quiz answer, I will really appreciate if you do.

laila [671]

Answer:

a . domain 5,0,7,9,0

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b. domain 2,4,8,9

range 1,2,4,11

Step-by-step explanation:

<h3>a is not a function</h3>

because function is a relationship in which each domain element occurs only once.

<h3>b is a function</h3>

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3 years ago

On a coordinate plane, triangles R S T and L M N are shown. Triangle R S T has points (5, 5), (2, 1), and (1, 3). Triangle L M N

ivolga24 [154]

Answer:

LMN has a larger area

Step-by-step explanation:

Given

RST

$R =(5,5)$

$S= (2,1)$

$T = (1,3)$

LMN

$L = (0,-1)$

$M= (2,-4)$

$N= (-2,-3)$

Required

Compare both areas

The area of triangle is:

$Area = \frac{1}{2}|x_1y_2 - x_2y_1 + x_2y_3 - x_3y_2 + x_3y_1 - x_1y_3|$

For RST, we have:

$Area = \frac{1}{2}|5*1 - 2*5 + 2*3 - 1*1 + 1*5 - 5*3|$

$Area = \frac{1}{2}|-10|$

Remove absolute signs

$Area = \frac{1}{2}*10$

$Area = 10$

For LMN, we have:

$Area = \frac{1}{2}|x_1y_2 - x_2y_1 + x_2y_3 - x_3y_2 + x_3y_1 - x_1y_3|$

$Area = \frac{1}{2}|0*-4-2*-1+2*-3--2*-4--2*-1-0*-3|$

$Area = \frac{1}{2}|-14|$

Remove absolute signs

$Area = \frac{1}{2}*14$

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<em>By comparing both areas, we can conclude that LMN has a larger area</em>

3 0

3 years ago

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Makovka662 [10]

Answer:

D

Step-by-step explanation:

Terms are separated by addition and subtraction symbols.

Polynomials consist of terms that are constant and/or variable. The variable terms must have 0 or positive exponents. Polynomials will not consist of division of variable expressions.

Examples of polynomials:

$5$

$5x$

$6-x$

$24x^9-x$

Examples of non-polynomials:

$\sqrt{x}$

$\frac{x+2}{x-4}$

In general a polynomial when written in standard form should be comparable to:

$a_nx^n+a_{n-1}x^{n-1}+\cdots a_3x^3+a_2x^2+a_1x+a_0$

where the $a$ 's could be zero and all the exponents,n, are positive or 0.

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Also the other choices have either division by variable expressions and/or negative exponents on variables.

5 0

3 years ago

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seraphim [82]

Answer:

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Step-by-step explanation:

Let n be our number

3 times n

3n

eight less than

3n-8

4 0

3 years ago