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ehidna [41]
3 years ago
11

What is the value of x, rounded to the nearest tenth?

Mathematics
2 answers:
Vedmedyk [2.9K]3 years ago
4 0

Answer:

15.0cm this can be wrong answer but i think this is right

elena55 [62]3 years ago
4 0

Answer:

15.0

Step-by-step explanation:

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WILL MARK BRAINLIEST
777dan777 [17]

Answer:


Step-by-step explanation:

xy = k    

where k is the constant of variation.

We can also express the relationship between x and y as:

y =      

where k is the constant of variation.

Since k is constant, we can find k given any point by multiplying the x-coordinate by the y-coordinate. For example, if y varies inversely as x, and x = 5 when y = 2, then the constant of variation is k = xy = 5(2) = 10. Thus, the equation describing this inverse variation is xy = 10 or y = .

Example 1: If y varies inversely as x, and y = 6 when x = , write an equation describing this inverse variation.

k = (6) = 8  

xy = 8 or y =  

Example 2: If y varies inversely as x, and the constant of variation is k = , what is y when x = 10?

xy =  

10y =  

y = × = × =  

k is constant. Thus, given any two points (x1, y1) and (x2, y2) which satisfy the inverse variation, x1y1 = k and x2y2 = k. Consequently, x1y1 = x2y2 for any two points that satisfy the inverse variation.

Example 3: If y varies inversely as x, and y = 10 when x = 6, then what is y when x = 15?

x1y1 = x2y2  

6(10) = 15y  

60 = 15y  

y = 4  

Thus, when x = 6, y = 4.



2nd answer choice


constant of variation is xy. XY=23. If X=7 then Y=23/7.

3 0
3 years ago
<img src="https://tex.z-dn.net/?f=p%5E%7B2%7Dxp%5E%7B2%7D" id="TexFormula1" title="p^{2}xp^{2}" alt="p^{2}xp^{2}" align="absmidd
vichka [17]

Answer:

{p}^{4} x

Step-by-step explanation:

1) Regroup terms.

{p}^{2} p^{2} x

2) Use product rule.

{p}^{2 + 2} x

3) Simplify 2 × 2 to 4.

p ^{4} x

Therefor, the answer is p⁴x

5 0
3 years ago
Read 2 more answers
What is the domain of the function shown in the graph?
lara31 [8.8K]

Answer:

the domain is the possible points on the x axis

Step-by-step explanation:

6 0
3 years ago
dominic rides hus bike at a rate of 4 minutes per mile how many miles will it take him to ride 12 miles
earnstyle [38]
It would be 48 miles
7 0
3 years ago
Read 2 more answers
A realtor collects the data set given in DS 12.2.4 concerning the sizes of a random selection of newly constructed houses in a c
Yuliya22 [10]

The table is missing in the question. The table is attached below.

Solution :

Let X = appraised value

    Y = area (square feet)

The regression line is given by :

$\hat y = b_0+b_1X$

$b_1=\frac{n\sum XY-\sum X \sum Y}{n \sum X^2-(\sum X)^2}$

   $=\frac{15(5964990)-(2157)(33370)}{15(404799)-(2157)^2}$

  $=12.3267$

$b_0=\frac{\sum Y}{n}-b_1\frac{\sum X}{n}$

   $=\frac{33370}{15}-\left(12.3267 \times \frac{2157}{15}\right)$

  $b_0=452.0841$

The regression line is :

$\hat Y = 452.0841+12.3267 X$

To estimate the error variance, we have:

Error variance, $\sigma =\sqrt{\frac{\sum (Y-\hat Y)^2}n-2{}}$

                           $=\sqrt{\frac{587682.3}{15-2}}$

                            $=212.6178$

8 0
3 years ago
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