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AveGali [126]
3 years ago
6

The mean value of land and buildings per acre from a sample of farms is ​$1300​, with a standard deviation of ​$200. The data se

t has a​ bell-shaped distribution. Assume the number of farms in the sample is 74.
​(a) Use the empirical rule to estimate the number of farms whose land and building values per acre are between ​$1100 and ​$1500.

Mathematics
1 answer:
Whitepunk [10]3 years ago
4 0

Answer:

number of farms are 108

Step-by-step explanation:

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Write the expression in standard form: 5(3a) + 8(-5b) + (4 * c * 6) * = Multiplication symbol
scoray [572]

Answer:

use photomath and your welcome :)))

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3 years ago
Compare using >,=, or >.
il63 [147K]

Answer:

5 = 5

5 < 6

7 > 6

Step-by-step explanation:

The two slashes is the equal sign, comparing two numbers that are of the same value. The sign below that means "less than," and 5 is less than 6. The sign below the "less than" sign is the "greater than" sign, and in the given example, 7 is GREATER THAN 6.

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3 years ago
Which ordered pair makes both inequalities true?
kow [346]

An ordered pair which makes both inequalities true is (-1, -3).

<h3>What is an ordered pair?</h3>

An ordered pair is a pair of two points that are commonly written in a fixed order within parentheses as (x, y), which represents the x-coordinate or x-axis (abscissa) and the y-coordinate or y-axis (ordinate) on the coordinate plane of any graph.

Next, we would test the ordered pair with the given system of inequalities in order to determine which is true.

For ordered pair (-3, 5), we have:

y < –x + 1

5 < -(-3) + 1

5 < 3 + 1

5 < 4 (False).

For ordered pair (-2, 2), we have:

y < –x + 1

2 < -(-2) + 1

2 < 2 + 1

2 < 3 (True).

y > x

2 > -2 (True)

For ordered pair (-1, -3), we have:

y < –x + 1

-3 < -(-1) + 1

-3 < 1 + 1

-3 < 2 (True).

y > x

-3 > -1 (False)

For ordered pair (0, -1), we have:

y < –x + 1

-(-1) < -(0) + 1

1 < 1

1 < 1 (False).

y > x

-1 > 0 (False)

Read more on inequality here: brainly.com/question/27166555

#SPJ1

5 0
1 year ago
Is a positive integer raised to a negative power always positive
Evgesh-ka [11]

Answer:

Yes

Step-by-step explanation:

Many students gets confused with these exponential problems, they often get misguided but understand that there is nothing to be confused of.

When you have a negative number, you just take the reciprocal of the whole exponent number.

What is a reciprocal?

Let's take an integer for example, let's take the number 3.

The reciprocal for 3 is (1/3)

Let's take an other number, let's take 2/3

The reciprocal for 2/3 is (3/2)

In conclusion, we just reverse the denominator and the numerator or just switch it.

We take 3 as (3/1) and that is the reason, the reciprocal would be (1/3)

Now, coming to the negative integers. Taking an example:

(2)⁻¹

This would be become (1/2¹) = (1/2)

Hence, the result of a negative integer is positive but would be a fraction.

Hope I helped!


3 0
3 years ago
Christopher mixes gallon of red paint with 5/8 gallon of blue paint to make
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Answer:1 3/8

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1 gallon + 5/8 gallon = 1 5/8 gallon

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4 years ago
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