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3 years ago

A direct variation function contains the points (2, 14) and (4, 28). Which equation represents the function?

2 answers:

6 0

Direct variation mean x =ky so y = x/k

(2,14) mean y = kx so 14 = k*2 so 14 = 7*2 so 14 = 14
(4,28) mean y = kx so 28 = k*4 so 28 = 7*4 so 28 = 28

from these result that the 3rd choice is right sure

mash [69]3 years ago

6 0

y = 7x THIS IS THE ANSEWR

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blagie [28]

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3 years ago

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Simplify the expression by arranging the steps in sequence, based on the order of operations.

lubasha [3.4K]

Answer:

$\displaystyle 6x - 5$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Distributive Property

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Step-by-step explanation:

Step 1: Define

$\displaystyle \frac{1}{6}(30x + 24) - \frac{1}{7}(63 - 7x)$

Step 2: Simplify

Distribute: $\displaystyle \frac{1}{6}(30x) + \frac{1}{6}(24) - \frac{1}{7}(63) - \frac{1}{7}(-7x)$
Multiply: $\displaystyle 5x + 4 - 9 + x$
Rearrange: $\displaystyle 5x + x + 4 - 9$
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2 years ago

PLEASE HELP! Last question! Which graphs show the solution to the given inequalities?

charle [14.2K]

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2 years ago

Simplify the expression (7+5)+4•13-2

Yakvenalex [24]

Pemdas

Parentheses exponents multiplication divide add subtract (7+5)=12

12+4•13-2 4•13= 52

12+52-2
64-2

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2 years ago

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cupoosta [38]

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Step-by-step explanation:

$\sin \left(x\right)=\frac{1}{2}$

$x=\frac{\pi }{6}+2\pi n,\:x=\frac{5\pi }{6}+2\pi$

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2 years ago

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