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andreyandreev [35.5K]
3 years ago
15

Which equation is equivalent to 2/3x - 5/6 = -5/12x + 1/4 ?

Mathematics
2 answers:
Lena [83]3 years ago
5 0

Answer:

The answer is D

Step-by-step explanation:

2/3x-5/6=5/12x+1/4

x=1

the only option that x=1 is

2/3x-13/12=-5/12x

Scorpion4ik [409]3 years ago
3 0
2/3x - 5/6 = -5/12x + 1/4 =
2/3x - 5/6 - 1/4 = -5/12x
2/3x - 10/12 - 3/12 = -5/12x
2/3x - 13/12 = -5/12x <=====
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Suppose we conduct a hypothesis test to determine if an exercise program helps people lose weight. We measure the weight of a ra
shusha [124]

Answer: (ii) We reject H0---this sample provides significant evidence that the program is effective.

Step-by-step explanation:

The null hypothesis is

The program is not effective for weight loss.

The alternative hypothesis is

The program is effective for weight loss.

If the P-value for the test turns out to be 0.012, and the level of significance is 0.05, then

Alpha, 0.05 > p value, 0.012

Therefore, there is enough evidence to reject the null hypothesis. We then accept the alternative hypothesis.

The correct option is

(ii) We reject H0---this sample provides significant evidence that the program is effective.

6 0
3 years ago
Please help! use the net to find the lateral area of the prisim
Sergio039 [100]

Answer: 832 cm².

Step-by-step explanation:

1. To calculate the lateral area of the prism by using the net you must:

- Calculate the perimeter of the base:

P=2l+2w

Where l is the lenght and w is the width:

l=17cm\\w=15cm

Then:

P=2(17cm)+2(15cm)=64cm

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Then, the lateral surface area is:

LA=64cm*13cm=832cm^{2}

7 0
3 years ago
Multiply 5 yards 18 inches by 3? please show work
lesya692 [45]

Answer:

5 yards = 15 feet = 180 inches

Step-by-step explanation:

180 inches plus 18 inches = 198 inches

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7 0
3 years ago
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2 years ago
42. Which matrix represents the image of the triangle with vertices at (-2,0), (1,5), and (4,-8) when dilated by a scale factor
jasenka [17]

The second matrix \left[\begin{array}{ccc}-6&3&12\\0&15&-24\end{array}\right] represents the triangle dilated by a scale factor of 3.

Step-by-step explanation:

Step 1:

To calculate the scale factor for any dilation, we divide the coordinates after dilation by the same coordinated before dilation.

The coordinates of a vertice are represented in the column of the matrix. Since there are three vertices, there are 2 rows with 3 columns. The order of the matrices is 2 × 3.

Step 2:

If we form a matrix with the vertices (-2,0), (1,5), and (4,-8), we get

\left[\begin{array}{ccc}-2&1&4\\0&5&-8\end{array}\right]

The scale factor is 3, so if we multiply the above matrix with 3 throughout, we will get the matrix that represents the vertices of the triangle after dilation.

Step 3:

The matrix that represents the triangle after dilation is given by

3\left[\begin{array}{ccc}-2&1&4\\0&5&-8\end{array}\right] = \left[\begin{array}{ccc}3(-2)&3(1)&3(4)\\3(0)&3(5)&3(-8)\end{array}\right] = \left[\begin{array}{ccc}-6&3&12\\0&15&-24\end{array}\right]

This is the second option.

4 0
3 years ago
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