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4 years ago

Can someone please help me with this question?

Mathematics

1 answer:

White raven [17]4 years ago

4 0

Answer:

B. Lynden

Step-by-step explanation:

4(2x+2) - 2(x + 2) = 10 - 3(x +2)

To use the distributive property, you multiply the terms inside the parentheses by the number outside them.

8x + 8 - 2x - 4 = 10 - 3x - 6

A is wrong. Gregory used the addition property incorrectly. He should have gotten

4(2x + 2) + (x + 2) = 10

C is wrong. Whitney used the distributive property incorrectly. She made a mistake when distributing the -2 in -2(x + 2). She should have gotten

8x + 8 - 2x - 4 = 10 - 3x - 6

D is wrong. David combined like terms incorrectly. 10 and 3x are not like terms. He should have gotten

4(2x + 2) - 2(x + 2) = 4 - 3x

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3 years ago

Use the given values of n= 93 and p= 0.24 to find the minimum value that is not significantly low, μ- 2σ , and the maximum val

allsm [11]

Answer:

The answer is "Option a".

Step-by-step explanation:

$n= 93 \\\\p= 0.24\\\\\mu=?\\\\ \sigma=?\\\\$

Using the binomial distribution: $\mu = n\times p = 93 \times 0.24 = 22.32\\\\\sigma = \sqrt{n \times p \times (1-p)}=\sqrt{93 \times 0.24 \times (1-0.24)}=4.1186$

In this the maximum value which is significantly low, $\mu-2\sigma$ , and the minimum value which is significantly high, $\mu+2\sigma$ , that is equal to:

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3 years ago

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erik [133]

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3 years ago

What is the maximum number of pages the report can have so that it can be completely stored on a USB drive that holds 4 \cdot 10

lana [24]

Answer:

<em>2,300,000pages report.</em>

Step-by-step explanation:

Given a USB drive with memory of 4.6*10⁶KB, in order to know the maximum number of pages a report can have so that it can be completely stored on the drive, the conversion factor must be used.

We must first understand that 1 page of a document uses up approximately 2kB of the storage.

Since 2kB = 1page

4.6*10⁶KB = x page

Cross multiply

2kB * x = 4.6*10⁶KB * 1

2x = 4.6*10⁶

x = 4.6*10⁶/2

x = 2.3*10⁶

x = 2,300,000

<em>Hence the maximum number of pages that the report can have so that it can be completely stored on a USB drive that holds 4.6*10⁶KB is approximately 2,300,000pages report.</em>

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3 years ago

Which of the following groups of terms can be used interchangeably when working with normal distributions?

BARSIC [14]

Answer:

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Step-by-step explanation:

This is because each of these terms refers to an amount of space surrounding the mean on the normal distribution curve. Each of them let's us know how likely a spot is to have a value within it.

The z-score would not fit this as it identifies the value and how far away a single spot on the graph would be.

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3 years ago