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3 years ago

What is alpha null?????????????

1 answer:

8 0

Before you run any statistical test, you must first determine your alpha<span> level, which is also called the “significance level.” By definition, the </span>alpha<span> level is the probability of rejecting the </span>null<span> hypothesis when the </span>null<span> hypothesis is true.</span>

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Please Help 30 Points

Virty [35]

Answer:

Step-by-step explanation:

5 0

2 years ago

Substitute: 7.5x = 5.5x + 10

Umnica [9.8K]

The value of x is 5

<h3>What are algebraic expressions?</h3>

Algebraic expressions are expressions made up;

Factors
variables
terms
constants

They also consist of mathematical operations such as addition, multiplication, division, subtraction, parenthesis, brackets, etc

We have the expression as;

7.5x = 5.5x + 10

collect like terms

7.5x - 5.5x = 10

subtract the like terms

2.0x = 10

Make 'x' the subject

x = 10/2. 0

x = 5

Thus, the value of x is 5

Learn more about algebraic expressions here:

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7 0

1 year ago

Alina measured a distance to be 2.18 miles. what is the margin of error? 2.1 miles to 2.2 miles 2.175 miles to 2.185 miles 2.185

Gre4nikov [31]

Answer:

(b) 2.175 miles to 2.185 miles

Step-by-step explanation:

When a value is rounded, the original "exact" value is presumed to be within 1/2 of the value of one least-significant unit of the rounded number.

<h3>Application</h3>

A rounded value of 2.18 has a least-significant digit with a place value of 0.01 units. Half that value is the "margin of error". That is, the range of numbers that would be rounded to 2.18 is ...

2.18-0.005 ≤ x < 2.18+0.005

2.175 ≤ x < 2.185 . . . . miles

7 0

2 years ago

A new toy store had expenses of $50,000 for designing and building the shelves and counters and $150,000 for the first year’s to

Naya [18.7K]

The answer would be C.

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3 years ago

WHAT IS THE DECIMAL FORM FOR 7 x 10 + 9 x (1/10) + 2 x (1/100) + 5 x (1/000)

max2010maxim [7]

Answer:

70.925 I believe

Step-by-step explanation:

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2 years ago