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galina1969 [7]
2 years ago
5

What is y+2= (-3) (x-4)

Mathematics
2 answers:
TEA [102]2 years ago
3 0
Y=-3x+10 is your awnser
Darya [45]2 years ago
3 0

Answer:

y + 3x = 10

Step-by-step explanation:

y + 2 = -3 ( x - 4 )

y + 2 = -3x + 12                       ( <em>opening the brackets and multiplying</em> )

y + 3x = 10                              ( <em>taking - 3x to left side and +2 to right side</em> )

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The value of 2 in 204.75 is how many times greater than the 2 in 103.52
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The value is 200. It is 4 times greater
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A) 3a + 5 (2a + 6) - 7a
Mrac [35]

Answer:

A) 3a+10a+30-7a

=6a+30

B) 6b-32b+72+3b

=72+23b

3 0
3 years ago
Whats 25 divided by 2
Assoli18 [71]
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4 0
3 years ago
Read 2 more answers
An article reported on the results of an experiment in which half of the individuals in a group of 60 postmenopausal overweight
slavikrds [6]

Answer:

Step-by-step explanation:

From the given information:

Let's first compute the null and alternative hypothesis

Null hypothesis:

\mathbf{H_o: \mu_1-\mu_2=1}

Alternative hypothesis:

H_a :\mu_1 -\mu_2 > 1

The number of samples is half in a group of 60

i.e

n_1=n_2 = 30

the sample mean for sample 1 \overline x_1 = 5.7

the standard deviation for sample 1 s_1 = 3.1

the sample mean for sample 2 \overline x_2 = 3.9

the standard  deviation for sample 2 s_2 = 2.7

degree of freedom  for this test can be computed by using the formula:

df = \dfrac{\begin {pmatrix} \dfrac{s_1^2}{n_1} + \dfrac{s^2_2}{n_2}   \end {pmatrix}^2  }  {\dfrac{ (\dfrac{s_1^2}{n_1}^2)}{ n_1-1}  + \dfrac{ (\dfrac{s_2^2}{n_2}^2)}{ n_2-1}  }

df = \dfrac{\begin {pmatrix} \dfrac{3.1^2}{30} + \dfrac{2.7^2}{30}   \end {pmatrix}^2  }  {\dfrac{ \begin {pmatrix} \dfrac{3.1^2}{30} \end {pmatrix}^2}{ 30-1}  + \dfrac{ \begin {pmatrix} \dfrac{2.7^2}{30} \end {pmatrix}^2}{ 30-1}  }}

df = 114.68

The test statistics can be computed as follows:

t = \dfrac{ \overline x_1 -\overline x_2- (\mu_1 -\mu_2)}{\sqrt{ \dfrac{s_1^2}{n_1} +\dfrac{s_2^2}{n_2} }}

t = \dfrac{ 5.7-3.9- (1)}{\sqrt{ \dfrac{3.1^2}{30} +\dfrac{2.7^2}{30} }}

t = 1.07

Using the level of significance of 0.1, the P-value for the test statistics at the df of 114.68 is:

P-value = 0.143

Decision rule: To reject the null hypothesis if the level of significance is greater than the p-value.

Conclusion: We fail to reject the null hypothesis because the p-value is greater than the level of significance at 0.1.

Thus, it appears that the true average weight loss for the vegan diet does not exceeds that for the control diet by more than 1 kg.

8 0
3 years ago
A rectangle's length is twice its width. if the perimeter is 132 cm, find the width of the rectangle.
Over [174]
Perimeter=(2*length)+(2*width)
length=2*w
132=(2(2w))+(2w)
132=(4w)+(2w)
132=6w
w=22
l=44
8 0
3 years ago
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