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Readme [11.4K]
3 years ago
6

Anna found the difference between thirteen and the product of four and a number. Which expression represents this phrase, and wh

at is its value if n = 3?
StartFraction n Over 4 EndFraction minus 13; when n = 3 the value is Negative 12 and one-fourth
13 minus 4 n; when n = 3 the value is 1
4 n minus 13; when n = 3 the value is –1
13 minus StartFraction n Over 4 EndFraction; when n = 3 the value is 12 and one-fourth
Mathematics
2 answers:
Vinil7 [7]3 years ago
8 0

Answer:

yeah i think its B too

Step-by-step explanation:

ira [324]3 years ago
7 0

Answer:

tbh i think the answer is b

Step-by-step explanation:

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1. Which property is illustrated by the statement?(statement below)
bearhunter [10]

1. 8(-5/6) = (-5/6)8 illustrates the commutative property of multiplication.

2. 5.4 + 3 = 3 + 5.4 illustrates the commutative property of addition.

<h3>What is the Commutative Property of Multiplication?</h3>

The commutative property of multiplication states that the arrangement of change of numbers that you want to multiply does not change what you would get as the product.

For example, a × b = b × a.

In the same vein, 8(-5/6) = (-5/6)8 illustrates the commutative property of multiplication.

<h3>What is the Commutative Property of Addition?</h3>

The commutative property of addition also states that the order or arrangement of addends will not change the sum you would get.

For example, 3 + 2 = 2 + 3.

Therefore, the statement, 5.4 + 3 = 3 + 5.4 illustrates the commutative property of addition.

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7 0
1 year ago
The sum of two numbers is no more than 28. Let x represent the first number, and let y represent the second number. Which
Sphinxa [80]
The answer is the first one
7 0
3 years ago
The weekly earnings of students in one age group are normally distributed with a standard deviation of 47 dollars. A researcher
ELEN [110]

Answer:

Option D) 340

Step-by-step explanation:

We are given the following in the question:

Alpha, α = 0.05

Population standard deviation, σ = $47

Margin of error = 5

95% Confidence Interval:

\mu \pm z_{critical}\frac{\sigma}{\sqrt{n}}

\text{Margin of error} = z_{critical}\frac{\sigma}{\sqrt{n}}

Putting the values, we get,

z_{critical}\text{ at}~\alpha_{0.05} = 1.96

5 = 1.96(\dfrac{47}{\sqrt{n}} )\\\\\sqrt{n} = \dfrac{47\times 1.96}{5}\\\\n = 339.443776\\\Rightarrow n \approx 340

Thus, the correct answer is

Option D) 340

7 0
3 years ago
The formula F=9/5C+32 is used to convert Celsius to Fahrenheit temperature. If the temperature is 20 C what is it in Fahrenheit?
ahrayia [7]
F = C x 9/5 + 32
(20) x 9/5 + 32
= 68
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3 years ago
Tìm x<br> a) (x+3)²+(x-2)²=2x²
natta225 [31]
The answer is 7 because x+3 is 10. Hope this helped
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3 years ago
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