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yanalaym [24]
3 years ago
14

2+2 equals .................................................

Mathematics
2 answers:
Sholpan [36]3 years ago
4 0

2+2=4

Are you sure you need help with this

Vlad [161]3 years ago
3 0

the answer is four because 2 plus 2 equals 4

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Solve the problem.When exposed to ethylene gas, green bananas will ripen at an accelerated rate. The number of days for ripening
Alex Ar [27]

The table and the plotted data are in the attachment.

Answer and Step-by-step explanation: A line of best fit is the best approximation of the given data. It is used to show the relation of two variables and it can be determined, more accurately, by the Least Square Method.

To use the method, follow the steps:

1) Calculate the mean of the two variables:

X = \frac{\Sigma x_{i}}{n}

Y=\frac{\Sigma y_{i}}{n}

2) The Slope of the line is given by:

m=\frac{\Sigma (x_{i}-X)(y_{i}-Y)}{\Sigma (x_{i}-X)^{2}}

3) The y-intercept is found by the formula:

b=Y-mX

For the ripening of bananas, the least square method gives the line:

y = -0.142x + 5.56

The rate of change of a line equation is its slope, so

Rate of change = -0.14

The rate of change of ripening time with respect to exposure time is -0.14, which means the more expose the fruit is, the less time it needs to ripe.

Download pdf
7 0
3 years ago
The area of a rectangle is 45 square inches. One dimension is 5 inches. What is the perimeter
professor190 [17]

Answer:

28 inches

Step-by-step explanation:

To begin, the area of a rectangle is base · height. Since we are given one of the sides already, you can make an equation to solve for the other value.

5 · x = 45

5x = 45

x = 9

A rectangle has two pairs of parallel sides, or in easier terms, two sets of sides that are the same. So, the perimeter is going to be two lengths plus two widths.

2 · 5 + 9 · 2 = 10 + 14 = 28

6 0
2 years ago
Translate this phrase into an algebraic expression.
Levart [38]

Answer:

(n*19)-4

Step-by-step explanation:

A product is the result of multiplication, so the product of a number (represented as n) and 19 would be n*19. Put these in parentheses, so that it remains organized and you don't become confused later.

Then 4 less would simply mean you subtract 4 from the product of n and 19.

(n*19)-4

7 0
3 years ago
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g.o is going on a hike in the mountains on a hot summer day. he has 4/5 gallon of water that splits into 4 bottles. what fractio
Pani-rosa [81]
If he splits it into 4 bottles you have to convert 4/5 into a decimal and you would get .8 then
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4 0
3 years ago
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Evaluate each expression 9 cubed
Harrizon [31]
9 cubed would be 9×9×9=729
8 0
3 years ago
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