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IrinaVladis [17]
3 years ago
9

Is y=150x proportional?

Mathematics
2 answers:
daser333 [38]3 years ago
5 0

Answer:

yes

Step-by-step explanation:

A proportional equation is of the form

y = kx where k is the constant of proportionality

y = 150x is proportional

CaHeK987 [17]3 years ago
5 0
Yes this slope is proportional
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A study is planned to compare the proportion of men who dislike anchovies with the proportion of women who dislike anchovies. Th
andrey2020 [161]

Answer:

The requirements are satisifed since we have the proportion estimated, the sample sizes provided, we assume random sampling for the selection of the data and the distribution for the difference of proportions can be considered as normal

z=\frac{0.67-0.84}{\sqrt{0.755(1-0.755)(\frac{1}{41}+\frac{1}{56})}}=-1.923  

Step-by-step explanation:

The requirements are satisifed since we have the proportion estimated, the sample sizes provided, we assume random sampling for the selection of the data and the distribution for the difference of proportions can be considered as normal

Data given and notation  

n_{M}=41 sample of male selected

n_{W}=56 sample of demale selected

p_{M}=0.57 represent the proportion of men who dislike anchovies

p_{WCB}=0.84 represent the proportion of women who dislike anchovies

z would represent the statistic (variable of interest)  

p_v represent the value for the test (variable of interest)

Concepts and formulas to use  

We need to conduct a hypothesis in order to check if the proportion for men is different from women  , the system of hypothesis would be:  

Null hypothesis:p_{M} = p_{W}  

Alternative hypothesis:p_{M} \neq p_{W}  

We need to apply a z test to compare proportions, and the statistic is given by:  

z=\frac{p_{M}-p_{W}}{\sqrt{\hat p (1-\hat p)(\frac{1}{n_{M}}+\frac{1}{n_{W}})}}   (1)

Where \hat p=\frac{X_{M}+X_{W}}{n_{M}+n_{W}}=\frac{0.67+0.84}{2}=0.755

z-test: Is used to compare group means. Is one of the most common tests and is used to determine whether the means of two groups are equal to each other.  

Calculate the statistic

Replacing in formula (1) the values obtained we got this:  

z=\frac{0.67-0.84}{\sqrt{0.755(1-0.755)(\frac{1}{41}+\frac{1}{56})}}=-1.923  

4 0
3 years ago
Ahhh plz help last question!!! 15 points
Archy [21]
Area of triangle = 1/2(4)(4) = 16/2 = 8

if Area of square then A = 4 x 4 = 16

so answer
B. it's one half the area of square  of side length 4 units
4 0
3 years ago
Read 2 more answers
HELP ASAP THIS IS SOMETHING DUE IN LESS THAN AN HOUR AND I HAVE OTHER PROBLEMS TO DO
saw5 [17]

Answer:

30 degrees

Step-by-step explanation:

Let Angle ABC be 2x, Angle EBC be 5x

angle \: dbc = 90 - 2x \\ angle \: dbc \:  + angle \: ebc = 180 \\ 90 - 2x + 5x = 180 \\ 3x = 90 \\ x = 30 \\  \\ angle \: dbc = 90 - 60 \\   = 30

5 0
3 years ago
Step 1: 1x-21+3=7 step 2: 1x-21=7-3 step 3: 1x-21=4 what would the next step be to solve equation
IgorC [24]
Add 21 to both sides
6 0
3 years ago
Brainliest 25pts Bad answers = insta-report, if you dont understand dont answer the question. Must give statement and reason
Klio2033 [76]

9514 1404 393

Explanation:

We can find the slope by solving for y.

  3x +2y +7 = 5x +3y +10

  -2x -3 = y . . . . . . . . . . . . . add -5x-10-2y to both sides of the equation

In this form, the slope (m) is the coefficient of x, -2. Hence m = -2.

__

<em>Alternate solution</em>

A graph of the equation shows it has an x-intercept of -1.5 and a y-intercept of -3. The slope (m) is then "rise" divided by "run", or ...

  m = rise/run = -3/1.5

  m = -2

4 0
3 years ago
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