If the trends in this table continue , after how many years y will the population of Manchester , NH be more than the population of Vallejo , CA ? Round your answer to the nearest tenth of a year
Answers
As soon as I read the first line and saw the words "in this table", I knew in my
guts that when I opened the question and saw the whole thing, there would be
no table. So I opened it and, sure enough, my guts were correct again.
Nobody ... including you ... can answer this question without seeing the table.
Maybe that's been your whole problem, and the reason you're having trouble
with it. Sit down, relax, and spend some time with the table.
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Answers
Answer:
-8x² + 28x - 20
Step-by-step explanation:
To simplify the expression A(x) = ( 2x - 5 )( x + 1 ) - ( 5x - 3 )( 2x - 5 ), you can start by using the distributive propertyto expand both sets of parentheses and then combine like terms:
A ( x ) = ( 2x - 5 ) ( x + 1 ) - ( 5x - 3 ) ( 2x - 5 )
- Expand the first set of parentheses.
( 2x - 5 ) ( x + 1 )
2x ( x ) + 2x ( 1 ) - 5 ( x ) - 5 ( 1 )
2x² + 2x - 5x - 5
- Now, expand the second set of parentheses.
( 5x - 3 ) ( 2x - 5 )
5x ( 2x ) + 5x ( -5 ) - 3 ( 2x ) - 3 ( -5 )
10x² - 25x - 6x + 15
- Now, let's combine like terms within each part.
2x² + 2x - 5x - 5 - ( 10x² - 25x - 6x + 15)
- Distribute the negative sign to both terms in the second parentheses.
2x² + 2x - 5x - 5 - 10x² + 25x + 6x - 15
- Combine like terms in the entire expression.
( 2x² - 10x² ) + ( 2x - 5x + 25x + 6x ) + ( -5 - 15 )
- Simplify further.
-8x² + 28x - 20
∴ A ( x ) = -8x² + 28x - 20
Answers
f(2) = 4(2) × 2 + 5
f(2)=8 × 2 + 5
f(2)=16 + 5
f(2)=21
There's your answer :) (I just assumed that 2 was being multiplied when you said 4x2)
its supposed to be 4x^2.
Answers
ANSWER: 15.5 units^2
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15 students
2 students must be chosen.
No repetition, no order
This is a combinations problem. We use this formula: n! / (n-r)!(r!)
n = 15 ; r = 2
15! / (15-2)!(r!) ⇒ 15! / 13! * 2! = 105
Using the combination formula, it is found that the students can be selected in 105 ways.
The order in which the students are selected is not important, hence the combination formula is used to solve this question.
What is the combination formula?
The number of possible combinations of x elements from a set of n elements is given by:
In this problem, two students are selected from a set of 15, hence the number of different orders is given by:
More can be learned about the combination formula at brainly.com/question/25821700
#SPJ5
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Answers
Answer:
6.8 units
Step-by-step explanation: