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marysya [2.9K]
3 years ago
5

Find the product.

Mathematics
2 answers:
Serhud [2]3 years ago
7 0

Answer:

Im thinking all of the spots are <u><em>2</em></u> because of <u><em>distributive property</em></u>

Step-by-step explanation:


Otrada [13]3 years ago
5 0

Answer:

The fill in the blanks are :

-a <u>3</u> b <u>2</u> c <u>2</u> - a <u>2</u> b <u>3</u> c <u>2</u> + a <u>2</u> b <u>2</u> c <u>3</u>

Step-by-step explanation:

The required product can be find out by using the Distributive law of multiplication over addition.

Now the given expression is :  -a²b²c²·(a + b - c)

Distributing -a²b²c² over addition inside the bracket, We get,

= -a²b²c² × a - a²b²c² × b - a²b²c² × -c

= -a³b²c² - a²b³c² + a²b²c³ ( product of negative and negative is positive)

Therefore, the required product is :

-a²b²c²·(a + b - c) = -a³b²c² - a²b³c² + a²b²c³

Hence, the fill in the blanks are :

-a <u>3</u> b <u>2</u> c <u>2</u> - a <u>2</u> b <u>3</u> c <u>2</u> + a <u>2</u> b <u>2</u> c <u>3</u>

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I please need help with this question. Thank you
Diano4ka-milaya [45]

Part (A)

The input variable is the shoe size because it is along the horizontal axis, or x axis. It's not clear what the units for the shoe size are, but it's possible the units are in inches.

The output variable is the y value, which in this case is the height. The units for the height is in inches.

====================================================

Part (B)

We have a positive trend. We determine this visually by noting the regression line, or trend line, is going upward as we move from left to right.

Algebraically, the equation for the trend line has a positive slope, which leads to a positive trend.

A positive trend is where x and y increase together. As shoe size goes up, height goes up as well.

While not all the points are on the line, there is a tendency for the points to go uphill as we move from left to right.

As for the strength of the correlation, that part is subjective. If we knew the correlation coefficient r, then we could be more certain; however, we don't know this value. So instead we have to eyeball the given graph and give an estimate. Based on the graph, I'd say there's a moderate positive correlation going on. It's somewhere in the middle of weak and strong positive correlation because the data points are somewhat scattered randomly, but they trend upward nonetheless.

====================================================

Part (C)

The rate of change is the slope. The slope is the coefficient of the independent variable x. In this problem, the slope is 1.728

So the rate of change is 1.728 inches per shoe size.

In other words, as the shoe size increases by 1 unit (1 inch perhaps?), the height will increase by roughly 1.728 inches.

---------------------------------------------------------

Extra info:

The equation

Height = 51.46 + 1.728(Shoe Size)

is the same as

y = 51.46 + 1.728x

where x is the shoe size and y is the height

We can rearrange that into

y = 1.728x + 51.46

So that it matches with the familiar y = mx+b slope intercept form. This is optional.

3 0
3 years ago
0.6cm squared to mm squared
san4es73 [151]
1 cm = 10 mm

1 cm^2 = 100 mm^2

0.6 cm^2 = 0.6 * 100 mm^2 = 60 mm^2
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3 years ago
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egoroff_w [7]

Answer:

the anwser is b

Step-by-step explanation:

divide 27 by 180 and you get an answer of 54

8 0
3 years ago
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Citrus2011 [14]
If you are having trouble with ratios you can look at them as fractions. The first number being the numerator and the second number being the denominator or the other way around. When you are asked to find an equivalent ratio, you just have to find an equivalent fraction. 
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What is the simplified equation of 9(x+3)-(2x+5)?
Zanzabum

Answer:

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Step-by-step explanation:

9(x+3)-(2x+5)

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4 0
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