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vodomira [7]
3 years ago
9

What is the simplified form of the expression 3 + 8x − 2y − x + 1 + 4y? Enter your answers in the boxes.

Mathematics
1 answer:
mr_godi [17]3 years ago
3 0
3+8x-2y-x+1+4y

Combine all like terms and 

7x+4+2y is your answer
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Matches the description in the table below. 
tatiyna
I think it is A because i think it is the only one that makes sense
5 0
3 years ago
A dogs weighs 7 pounds and triples each year for two years. How much does the dog weigh?
Tanya [424]
Year 1: 7lbs x 3years= 21lbs
Year 2: 21lbs x 3years = 63lbs
5 0
2 years ago
Read 2 more answers
The population of a city in 2000 was 500,000 while the population of the suburbs of that city in 2000 was 700,000. Suppose that
Mnenie [13.5K]

Answer:

The population of the city in 2002 is 469,280 while the population of the suburb is 730,720.

Step-by-step explanation:

  • 6% of the city's population moves to the suburbs (and 94% stays in the city).
  • 2% of the suburban population moves to the city (and 98% remains in the suburbs).

The migration matrix is given as:

A= \left \begin{array}{cc}  \\ C \\S \end{array} \right\left[ \begin{array}{cc}  C&S\\ 0.94&0.06 \\0.02&0.98 \end{array} \right]

The population in the  year 2000 (initial state) is given as:

\left[ \begin{array}{cc}  C&S\\ 500,000&700,000  \end{array} \right]

Therefore, the population of the city and the suburb in 2002 (two years after) is:

S_0A^2=\left \begin{array}{cc} [500,000&700,000]\\&  \end{array} \right\left \begin{array}{cc} \end{array} \right\left[ \begin{array}{cc} 0.94&0.06 \\0.02&0.98 \end{array} \right]^2

A^{2} = \left[ \begin{array}{cc} 0.8848 & 0.1152 \\\\ 0.0384 & 0.9616 \end{array} \right]

Therefore:

S_0A^2=\left \begin{array}{cc} [500,000&700,000]\\&  \end{array} \right\left \begin{array}{cc} \end{array} \right \left[ \begin{array}{cc} 0.8848 & 0.1152 \\ 0.0384 & 0.9616 \end{array} \right]\\\\=\left[ \begin{array}{cc} 500,000*0.8848+700,000*0.0384& 500,000*0.1152 +700,000*0.9616 \end{array} \right]\\\\=\left[ \begin{array}{cc} 469280& 730720 \end{array} \right]

Therefore, the population of the city in 2002 is 469,280 while the population of the suburb is 730,720.

6 0
3 years ago
In gym class students were asked to form six equal groups. If there were 18 students in each group, then how many total students
Contact [7]

Answer:108

Step-by-step explanation:

18 times 6 is 108

7 0
2 years ago
I NEED THIS ROGHT NOE help me pls
Lorico [155]

Answer:

A is estimated to 110.11

Step-by-step explanation:

Area of a regular pentagon = pa/2

p= perimeter

a= the apothem

Calculate it from the side length: p= 5s

8 0
3 years ago
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