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Archy [21]
3 years ago
5

Simplify the expression. 3(5 – 2) a. 5 b. 6 c. 9 d. 30 PLZ HELP!

Mathematics
1 answer:
Fiesta28 [93]3 years ago
3 0
The answer is C) 9. The answer is 9 because you have to subtract (5-2) then multiply the answer by 3 which ends up as 9.
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-9(-3 1/3 - 4) how do I solve that math problem?
svetoff [14.1K]
You need to use the distributive property. So you take the -9 from outside the parentheses and multiply itself by the numbers inside.
3 0
3 years ago
"During their first swim through a water maze, 15 laboratory rats made the following number of errors (went the wrong way): 2, 1
velikii [3]

Answer:

mean = 7.8, median =5, and mode(s) =5

the shape of the distribution is positive skewed

Step-by-step explanation:

Find the mean, median and mode(s) for

2, 17, 5, 3, 28, 7, 5, 8, 5, 6, 2, 12, 10, 4, 3

the mean = sum of (2, 17, 5, 3, 28, 7, 5, 8, 5, 6, 2, 12, 10, 4, 3)/15 =

              =  7.8          

the median = 2, 2, 3, 3, 4, 5, 5, 5,  6, 7,  8, 10, 12, 17, 28, = the middle value, the 8th value falls in the middle = 5

the mode is the most occurring value = 5

2. Without constructing a frequency distribution or graph, would you characterize the shape of this distribution as balanced, positively skewed, or negatively skewed?

positive skewed or Right skewed because the value of the mean is greater than the median

A right skewed histogram is a positive skewed histogram (which means the tail is longer the positive direction) that have its tail to the right.For a right skewed histogram the mean has a larger value that the median because the peak of the skewness fall in the median range then the mean follow to the right. and the data drive the mean value to the right which increase in value.

Read more on Brainly.com - brainly.com/question/14703862#readmore

5 0
3 years ago
Use quadratic formula to find the solutions to the quadratic equation 2x^2-3x+6=0
defon

Answer:

2x² - 3x + 6 = 0

a = 2 b = -3 c = 6

delta = b² - 4ac = 9 - 4.2.6 = -39

=  > x =  \frac{3 +  \sqrt{39}i }{4}  \: or \: x =  \frac{3 -  \sqrt{39} i}{4}

8 0
3 years ago
Read 2 more answers
If a=3 and b=4 wat is it ?
Anarel [89]

Answer:

what is what?

Step-by-step explanation:

5 0
3 years ago
Write an equation in standard form that has a slope of - and a y-intercept of -2.
Setler79 [48]

Answer:

y= 3x-2

Step-by-step explanation:

standard form

y= mx + c

 c represents y intercept

m represents slope or gradient

y= 3x-2

The slope is 3 and the y intercept in -2

7 0
3 years ago
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