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arsen [322]
3 years ago
15

What is the expression in factored form 9x^2-18x+9

Mathematics
1 answer:
nydimaria [60]3 years ago
7 0
9x^2-18x+9 =9(x^2-2x+1)=9(x-1)^2
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)) How many solutions does this equation have?<br> 12 + 4t - 14t = -13t - 18
Orlov [11]

Answer:

t = -10

Step-by-step explanation:

Ok so,

12 - 10t = -13t -18

12 - 10t + 13t = -13t + 13t - 18

12 + 3t = -18

12 - 12 + 3t = -18 - 12

3t = -30

t = -10

hope this helps! have a good day!

7 0
3 years ago
Jenette rides her bike to the bus station where she barely makes it in time to catch the bus to work. She spends half an hour on
aleksklad [387]

Answer:

The rate of the bike is approximately 23.14 mph

The rate of the bus is approximately 62.14 mph

Step-by-step explanation:

The given parameters are;

The time Janette spends on her bike to get to bus station = Half an hour = 0.5 hours = 30 minutes

The time Janette spends on the bus on her way to work = Two-thirds of an hour = 2/3 hours

The speed of the bus = 39 mph + The speed with which Janet travels on her bike

The total distance from her home to her work = 40 miles

To answer the question, let the speed with which Janet travels on her bike in miles per hour = x = the rate of the bike

Therefore, we have;

The speed rate of the bus = 39 + x

Distance = Speed × Time

The distance Janet travels to the bus station = The speed with which Janet travels on her bike × The time Janette spends on her bike to get to bus station

The distance Janet travels to the bus station = x × 0.5 = 0.5·x

The distance travelled by the bus from the bus station to her work = The speed of the bus × The time Janette spends on the bus from the bus station to her place of work

∴The distance travelled by the bus from the bus station to her work = (39 + x) × 2/3 hours = 13 + 2/3·x

The total distance from her home to her work = 40 miles = The distance Janet travels to the bus station + The distance travelled by the bus from the bus station to her work

∴ The total distance from her home to her work = 40 miles = 0.5·x + 13 + 2/3·x

Which gives;

40 = 0.5·x + 13 + 2/3·x

40 = 7/6·x + 13

7/6·x = 40 - 13 = 27

7/6·x = 27

x = 27 × 6/7 ≈ 23.14 mph

The rate of the bike = x ≈ 23.14 mph

The rate of the bike ≈ 23.14 mph

The speed rate of the bus = 39 + x ≈ 39 + 23.14  ≈ 62.14 mph

The speed rate of the bus ≈ 62.14 mph.

5 0
3 years ago
When the outliers are removed, how does the mean change? dot plot with 1 on 50, 1 on 76, 1 on 78, 2 on 79, 1 on 80, 1 on 81, 2 o
sveticcg [70]
We can plot this data on MS Excel and determine the distribution of these data reflected on the graph. Among these numbers, 50 is the outlier since it is very far from the other numbers ranging from 76 to 83. We can perform interquartile range to determine or verify the outliers in the data set. In this respect, we can see that there is not much distribution seen. The average of all data sets is equal to 96.25. When the outlier (50) is removed, we expect the mean to become higher since a low number was ommitted including high numbers only. Outliers are obtained from special causations such as human errors. 

5 0
3 years ago
Read 2 more answers
can someone help me please?? my teacher gave me a worksheet of a game with no rules or nun nd expected me to know how to play, s
8_murik_8 [283]
I would continue how to solve them in and out functions and email the principle or counselor that the teacher is not answering your questions on your worksheet
5 0
3 years ago
Use the drawing tools to form the correct answer on the graph. Graph the line that represents this equation: y=-5x+2
Tomtit [17]

An equation is formed of two equal expressions. The graph for the given situation can be drawn as shown below.

<h3>What is an equation?</h3>

An equation is formed when two equal expressions are equated together with the help of an equal sign '='.

<h3 />

A graph is a way to represent a lot of data in such a visual format that it is easy for the user to understand the complete information in one go. Usually, the line of the graph is a function that follows the graph.

The graph for the given equation y=-5x+2 can be drawn as shown below.

<h3 />

Learn more about Equation:

brainly.com/question/2263981

<h3 />

#SPJ1

7 0
2 years ago
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