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Lostsunrise [7]
2 years ago
15

Simplify the expression 2+(a+8)

Mathematics
2 answers:
allochka39001 [22]2 years ago
5 0

Answer:

a+10

Step-by-step explanation:

kap26 [50]2 years ago
5 0

Answer:

a + 10

Step-by-step explanation:

2 + ( a +8)

Start by opening the bracket.

2 + a + 8

It becomes;

a + 10

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A shopkeeper bird and electric item for rupees 1520 and sold it at 10% loss find the loss amount​
Alex17521 [72]

Answer:

The answer is 152

Step-by-step explanation:

When you have a number in between 9999 and 1000 you can divide by 10 to get ten percent of the number

3 0
2 years ago
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How do you solve for a?−5+a=-10
belka [17]

Hi there!

Here we go:

-5 + a = -10

Add 5 to each side of the equation


a = -5


There you go! I really hope this helped, if there's anything just let me know! :)

7 0
3 years ago
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In a simple regression analysis (where y is a dependent and x an independent variable), if the y-intercept is positive, then it
Rom4ik [11]

Answer:

m=\frac{S_{xy}}{S_{xx}}  

Where:  

S_{xy}=\sum_{i=1}^n x_i y_i -\frac{(\sum_{i=1}^n x_i)(\sum_{i=1}^n y_i)}{n}  

S_{xx}=\sum_{i=1}^n x^2_i -\frac{(\sum_{i=1}^n x_i)^2}{n}  

\bar x= \frac{\sum x_i}{n}  

\bar y= \frac{\sum y_i}{n}  

And we can find the intercept using this:  

b=\bar y -m \bar x  

On this case the correct answer would be:

E.  none of the above

Since the intercept has no association between the increase/decrease of the dependent variable respect to the independent variable

Step-by-step explanation:

Assuming the following options:

A.  there is a positive correlation between X and Y

B.  there is a negative correlation between X and Y

C.  if X is increased, Y must also increase

D.  if Y is increased, X must also increase

E.  none of the above

If we want a model y = mx +b where m represent the lope and b the intercept

m=\frac{S_{xy}}{S_{xx}}  

Where:  

S_{xy}=\sum_{i=1}^n x_i y_i -\frac{(\sum_{i=1}^n x_i)(\sum_{i=1}^n y_i)}{n}  

S_{xx}=\sum_{i=1}^n x^2_i -\frac{(\sum_{i=1}^n x_i)^2}{n}  

\bar x= \frac{\sum x_i}{n}  

\bar y= \frac{\sum y_i}{n}  

And we can find the intercept using this:  

b=\bar y -m \bar x  

On this case the correct answer would be:

E.  none of the above

Since the intercept has no association between the increase/decrease of the dependent variable respect to the independent variable

3 0
2 years ago
Mom is getting food ready for my birthday party! including me, there will be 24 people at the party. Mom is baking cupcakes for
Brilliant_brown [7]
You should tell your mom to bake 8 cupcake batches
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nikitadnepr [17]
B) 200W
Hope this helps amigo
5 0
2 years ago
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