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Shkiper50 [21]
3 years ago
6

Marie grew 10 plants with 2 seed packets. How many seed packets does Marie need to have a total of 15 plants in her backyard? So

lve using unit rates
Mathematics
1 answer:
drek231 [11]3 years ago
6 0

Answer:

he need 3 seeds to plant a 15 plant

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How many solutions does the system of equation have?
serious [3.7K]
We can determine the number of solutions from the slope intercept form of the equations.

Slope intercept form of equation 1 is:

y=- \frac{1}{4}x+3/4

Slope intercept form of second equation is:

y=- \frac{1}{4}x+ \frac{9}{12} \\  \\ 
y=  - \frac{1}{4}x+ \frac{3}{4}

The slope and the y-intercept of both equations are the same. This means, the two lines are lying over each other and hence they infinite number of solutions.

So, the correct answer is option C
8 0
3 years ago
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7. License Plate Laws The Chapter Problem involved passenger cars in Connecticut and passenger cars in New York, but here we con
sergejj [24]

Yes it is true that commercial truck owners violate laws requiring front license plates at a higher rate than owners of passenger cars because null hypothesis is rejected.

Given among 2049 Connecticut passenger cars, 239 had only rear license plates. Among 334 Connecticut trucks, 45 had only rear license plates.

let p_{1} be the probability that commercial cars have rear license plates and p_{2} be the probability that connected trucks have rear license plates.

                         Cars                     Trucks                         Total

Total                  2049                    334                             2383

x                          239                      45                                284

p                        0.1166                   0.1347                          0.1191

α=0.05

Hypothesis will be  :

H_{0}:p_{1} =p_{2}

H_{1} :p_{1} < p_{2}

It is a left tailed test at 0.05 significance.

Standard errors of p=\sqrt{p(1-p)/n}

=\sqrt{(0.1191*0.8809)/2383}

=\sqrt{0.1049/2383}        

=0.0066

Test statistic Z=p difference/standard error

=(0.1166-0.1347)/0.0066

=-0.0181/0.0061

=-2.967

p value=0.001505<5%

Since p is less than 5% we reject null hypothesis.

We cannot calculate standard deviation so  we cannot calculate confidence interval.

Hence there is statistical evidence at 5% significance level to support that commercial truck owners violate laws requiring front license plates at a higher rate than owners of passenger cars.

Learn more about z test at brainly.com/question/14453510

#SPJ4

5 0
2 years ago
All points from which of the following patterns would be contained on the given graph?
BARSIC [14]
The next number in the linear pattern would be 18
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4 years ago
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Robert bought some gifts that were each worth $25.90 at a store. He also bought one treat for himself that cost $4.00.
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A bc he bought three of the $25.90 then he bought only one for himself (the $4)
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How many edges does this figure have?
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Answer:

please show the figure

Step-by-step explanation:

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