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3 years ago

3a + 3b is equivalent to 3(a + 2b). A true B false

Mathematics

1 answer:

Sunny_sXe [5.5K]3 years ago

4 0

Answer:

B-false

Step-by-step explanation:

It is false because where the 2 is, has to be 3, other wise it won't make sense. Because it will not equal the same thing.

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Help me..............

Virty [35]

The correct answer would be (C.) x>90

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4 years ago

I need step to step help please.

VMariaS [17]

The equation and steps are...

First, find the slope of the original equation. In this case, the slope is -8. You know that perpendicular lines have slopes that are negative reciprocals, so the negative reciprocal of -8 is 1/8.

Now, use this new slope and the given point to find the y-intercept:

y = mx + b

4 = (?)(2) + b

4 = ? + b

15/4 = b

Use the new slope and y-intercept to write the new linear equation:

Answer:

y = 1/8x + 15/4

Sorry if i'm wrong

seemed easy

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4 years ago

3 Consider the line y= 3/4x+3. Find the equation of the line that is perpendicular to this line and passes through the point (-8

julsineya [31]

Answer:

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Step-by-step explanation:

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3 years ago

Whoopy what a day! 6+6

mash [69]

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Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

In a survey of 2264 adults, 729 say they believe in ufos. construct a 95 confidence interval for the population proportion of ad

Andreyy89

90% confidence, it can be said that the population proportion of adults who believe in UFOs is between the endpoints of the giver confidence interval [ 0.3026, 0.3348 ].

Here, we have given:

Number of adults (n) = 2272

Number of adults who believe in UFO (x) = 724

Sample proportion (p) = x/n

p = 724 / 2272

p = 0.3187

now, let q = 1 - p

q = 1 - 0.3187

q = 0.6813

Confidence level → 90%

The 90% confidence interval for population proportion is

$[ p - 1.645\frac{\sqrt{pq} }{\sqrt{n}} ,p + 1.645\frac{\sqrt{pq} }{\sqrt{n}} ]$

where 1.645 is Zac value at 90% confidence level.

$p - 1.645\frac{\sqrt{pq} }{\sqrt{n}}$ = 0.3187 - 0.0161 = 0.3026

$p + 1.645\frac{\sqrt{pq} }{\sqrt{n}}$ = 0.3187 + 0.0161 = 0.3348

90% confidence interval for the population proportion is

[ 0.3026, 0.3348 ]

Hence, With 90% confidence, it can be said that the population proportion of adults who believe in UFOs is between the endpoints of the giver confidence interval [ 0.3026, 0.3348 ]

Learn more about " Population Proportion " from here: brainly.com/question/15087042

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5 0

2 years ago