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3 years ago

Which of the following describes a continuous variable?

Mathematics

1 answer:

saveliy_v [14]3 years ago

6 0

Answer: E. The shoe sizes of all shoes on sale at a department store

Step-by-step explanation:

Continuous variable is defined as:

a numeric variable that has an infinite values between any two values.
a measure of a quantity like length, height, weight etc.

Here, All the options from A to D are discrete variables that are countable.

Only option E. is describing the measure as size of the shoe.

Hence, "The shoe sizes of all shoes on sale at a department store" is describing a continuous variable.

So, the correct option is "E".

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Is -2 9/11 a rational number or irrational number

horrorfan [7]

Answer:

irrational

Step-by-step explanation:

9/11 is a decimal that gets repeated so it is irrational

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3 years ago

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Find the area of quadrilateral which all side is 4 cm and diagonal one is 7 and diagonal two is 6

enyata [817]

Step-by-step explanation:

Your answer...... 21 cm^2

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3 years ago

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Reca was approved for a credit card that charges an apr of 26% what is her monthly interest rate?

Lesechka [4]

Answer:

$i_m=0.01945$ or 1.945%

Step-by-step explanation:

Term annual percentage rate(APR) is the annual interest rate charged ona financial year for a duration of one year. APR can be converted to weekly, monthly, daily or even semi-annual rates using the below formula.

Effective rate for period = (1 + annual rate)(1 / n of periods) – 1

Rate is given as:

$i_m=(1+i)^\frac{1}{12}-1\\i_m=(1+0.26)^\frac{1}{12}-1\\i_m=0.01945$

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2 years ago

Find the area of the shape shown below. 12 5 5 units

Yanka [14]

Answer:

42.5 units²

Explenation:

The area of the square on the left is 5×5=25.

At the top you do 12-5=7 to find the length of the tringle.

Than it is 7×5=35 than this divided by two, so 17.5.

You add both areas 25+17.5=42.5

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2 years ago

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What is the y value of the solution to the system of equations given? y=5x-3 3x-2y=27

nignag [31]

Answer:

y = -18

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS
Equality Properties

Algebra I

Solving systems of equations using substitution/elimination

Step-by-step explanation:

Step 1: Define systems

y = 5x - 3

3x - 2y = 27

Step 2: Rewrite systems

Define: 3x - 2y = 27
Add 2y on both sides: 3x = 2y + 27
Divide 3 on both sides: x = 2/3y + 9

Step 3: Redefine

y = 5x - 3

x = 2/3y + 9

Step 4: Solve for y

Substitute in x: y = 5(2/3y + 9) - 3
Distribute 5: y = 10/3y + 45 - 3
Combine like terms: y = 10/3y + 42
Subtract 10/3y on both sides: -7/3y = 42
Divide -7/3 on both sides: y = -18

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3 years ago