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dalvyx [7]
4 years ago
11

Katrina drinks 0.5 gallons of water per day which expression shows how to find the number of cups of water she drinks per week

Mathematics
1 answer:
Dahasolnce [82]4 years ago
3 0
Times it by 7 because those are the days of the week
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What number rounds to 3.10
Vikentia [17]

Answer:

They're many numbers

Step-by-step explanation:

3.6, 3.7, 3.8, 3.9

8 0
3 years ago
Read 2 more answers
Rain is falling at a constant rate of 0.2 inches per hour. After 5 hours, how much rain has fallen?
il63 [147K]

Answer:

pretty sure the answer is 1 inch

Step-by-step explanation:

0.2 x 5 = 1

8 0
3 years ago
Which of the choices below is not a possible correlation coefficient?
fiasKO [112]

Answer:

The condition for r is the following:

-1 \leq r \leq 1

And for this case if we analyze the options the only impossible value is given by:

1.0528

Because this value is higher than 1 and not satisfy the general limits for r

Step-by-step explanation:

The correlation coefficient is a measure of dispersion and is a value between -1 and 1, and is defined as:

r=\frac{n(\sum xy)-(\sum x)(\sum y)}{\sqrt{[n\sum x^2 -(\sum x)^2][n\sum y^2 -(\sum y)^2]}}

The condition for r is the following:

-1 \leq r \leq 1

And for this case if we analyze the options the only impossible value is given by:

1.0528

Because this value is higher than 1 and not satisfy the general limits for r

8 0
3 years ago
Write the parametric equation of the line 10x-4y=20
77julia77 [94]

Answer:

x = 1 - t and y = -2.5 - 2.5t.

Step-by-step explanation:

Parametric equations are the equations in which the all the variables of the equation are written in terms of a single variable. For example in 2-D plane, the equation of the line is given by y=mx+c, there x is the independent variable, y is the dependent variable, m is the slope, and c is the y-intercept. The equation of the given line is 10x - 4y = 20. The goal is to convert the variables x and y in terms of a single variable t. First of all, take two points which lie on the line. By taking x=1, y comes out to be -2.5 and by taking x=0, y comes out to be -5. The general form of the straight line is given by:

(x, y) = (x0, y0) + t(x1-x0, y1-y0), where (x, y) is the general point, (x0, y0) is the fixed point, t is the parametric variable, and (x1-x0, y1-y0) is the slope.

Let (x0, y0) = (1, -2.5) and (x1, y1) = (0, -5). Substituting in the general equation gives:

(x, y) = (1, -2.5) + t(-1, -2.5). This implies that x = 1 - t and y = -2.5 - 2.5t!!!

6 0
3 years ago
Does this graph represents a function? why or why not?
ankoles [38]

Answer:

Yes, it passes the vertical line test

Step-by-step explanation:

This graph has a one to one correspondence and will pass the vertical line test, there fore it is a function

3 0
3 years ago
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