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Makovka662 [10]
3 years ago
5

Mhydydluduhufhjpjphlb

Mathematics
2 answers:
PIT_PIT [208]3 years ago
6 0
The answer is a. your welcome
zalisa [80]3 years ago
5 0
The answer is d

Explanation: The arrow is pointing to the right hand sign and is also a shaded circle so therefore it will be D since they both point the same direction and also has a shaded circle.
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HURRY 12 POINTS
Svetlanka [38]

Answer:

The correct description of the variables is given by as the following -

The variables  are  gender and preferred method of learning. They are categorical variables.

Step-by-step explanation:

The correct description of the variables is given by as the following -

The variables  are  gender and preferred method of learning. They are categorical variables.

8 0
3 years ago
How many 0.45-ounces packages of cinnamon can be made with 3.15 ounces of cinnamon
Studentka2010 [4]
<span>3.15/.45=7 .45 ounce packages of cinnamon.</span>
8 0
3 years ago
In a restaurant, the proportion of people who order coffee with their dinner is p. A simple random sample of 144 patrons of the
mote1985 [20]
<h2>Answer with explanation:</h2>

Given : In a restaurant, the proportion of people who order coffee with their dinner is p.

Sample size : n= 144

x= 120

\hat{p}=\dfrac{x}{n}=\dfrac{120}{144}=0.83333333\approx0.8333

The null and the alternative hypotheses if you want to test if p is greater than or equal to 0.85 will be :-

Null hypothesis : H_0: p\geq0.85   [ it takes equality (=, ≤, ≥) ]

Alternative hypothesis : H_1: p  [its exactly opposite of null hypothesis]

∵Alternative hypothesis is left tailed, so the test is a left tailed test.

Test statistic : z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}

z=\dfrac{0.83-0.85}{\sqrt{\dfrac{0.85(1-0.85)}{144}}}\\\\=-0.561232257678\approx-0.56

Using z-vale table ,

Critical value for 0.05 significance ( left-tailed test)=-1.645

Since the calculated value of test statistic is greater than the critical value , so we failed to reject the null hypothesis.

Conclusion : We have enough evidence to support the claim that p is greater than or equal to 0.85.

8 0
2 years ago
Fred's basement is flooded. The basement floor is 3.4 meters below the ground floor. The water is 1.2 meters
alina1380 [7]

Answer:

the water is 2.2 meters deep

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
How do I verify #15 using fundamental trig identities?
expeople1 [14]

We start with the more complicated side which is the left side, and show that, on using some trigonometric identities, we will get the term on the right side .

\frac{sin \theta + tan \theta}{1+cos \theta}

Using Quotient identity for tangent function, we will get

\frac{sin \theta+ \frac{sin \theta}{cos \theta}}{1+cos \theta}

\frac{sin \theta cos \theta + sin \theta}{cos \theta(1+cos \theta)}

Taking out sine function from the numerator

=\frac{sin \theta(1+cos \theta)}{cos \theta(1+cos \theta)}

Cancelling the common term of numerator and denominator

=\frac{sin \theta}{cos \theta} = tan \theta

7 0
3 years ago
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