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LuckyWell [14K]
3 years ago
11

Evaluate the expression when b= -2, b2 +6b +9

Mathematics
1 answer:
Tema [17]3 years ago
4 0

Answer:

1

Step-by-step explanation:

b= -2, b2 +6b +9

=-2(2)+6(-2)+9

=-4-12+9

=4+9-12

=13-12

=1

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One half of the students in a school are girls, 3/5 of these girls are studying in lower classes. What fraction of girls are stu
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Answer:

4

Step-by-step explanation:

4

6 0
2 years ago
Which of the following statements does not describe a characteristic of the line of best fit for a scatter plot?
stira [4]

A statement which does not describe a characteristic of the line of best fit for a scatter plot is that: A. the line of best fit should be the average of all the data points.

<h3>What is a scatter plot?</h3>

A scatter plot can be defined as a type of graph which is used for the graphical representation of the values of two variables, with the resulting points showing any association (correlation) between the data set.

<h3>What is a line of best fit?</h3>

A line of best fit is also referred to as a trend line and it can be defined as a statistical (analytical) tool that is used in conjunction with a scatter plot, in order to determine whether or not there's any correlation between a data.

<h3>The characteristics of a line of best fit.</h3>

The statements which describe a characteristic of the line of best fit for a scatter plot include the following:

  • The line should be as close to the points as possible.
  • The number of points above the line should be equal to the number of points below the line.
  • The distance between the points above the line and the line should be relatively equal to the distance between the points below the line and the line.

Read more on scatterplot here: brainly.com/question/6592115

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7 0
1 year ago
Why is my dad so mean to me?
Vladimir79 [104]
To be honest there are lots of different reasons. You might want to try and talk to him to let him now how he is making you feel.
6 0
2 years ago
Read 2 more answers
7<br> х<br> 45<br> Find x.<br> x=<br> V(14)<br> 7<br> 07/2
lukranit [14]

Answer:

7

Step-by-step explanation:

This a special 90° 45° 45° triangle and is an Isosceles triangle at the same time

Of one of the equal side is 7 than the other one too must be 7

6 0
3 years ago
A home’s value increases at an average rate of 5.5% each year. The current value is $120,000. What function can be used to find
Wewaii [24]

Answer:

y=120,000(1.055)^x

Step-by-step explanation:

we know that

The equation of a exponential growth function is given by

y=a(1+r)^x

where

y is the value of the home

x is the number of years

a is the initial value

r is the rate of change

we have

a=\$120,000\\r=5.5\%=5.5/100=0.055

substitute

y=120,000(1+0.055)^x

y=120,000(1.055)^x

7 0
3 years ago
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