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tatiyna
2 years ago
11

I was hoping that someone can help me get the right answer

Mathematics
2 answers:
Nezavi [6.7K]2 years ago
5 0
My answer is that Its a no... C
a_sh-v [17]2 years ago
3 0

The answer is no because it fails the vertical line test

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#4 NEAD HELP SOLVE THIS QUESTION ASAP
sergiy2304 [10]
C. 118.2

1 and 2 make a complimentary angle, so 2=118.2

2 and 6 are corresponding, so angle 2=angle 6 (118.2 = 118.2)
4 0
3 years ago
How would I finish solving this?
Zarrin [17]
Hello!

The original equation is:

200 = (5w ÷ 2)8

This problem can be written as:

200 = (5w/2)8

And you can then reduce the numbers with 2:

200 = 5x * 4
200 = 20x
10 = x

Your correct answer is 10.
3 0
3 years ago
Read 2 more answers
If the vertex of a parabola is (9,6), what is the axis of symmetry?
zimovet [89]

Answer:

x=9 :)

Step-by-step explanation:

3 0
2 years ago
Can someone help me with this??
Umnica [9.8K]

Answer:

divide by 2

Step-by-step explanation:

5 0
3 years ago
You want to obtain a sample to estimate how much parents spend on their kids birthday parties. Based on previous study, you beli
zhuklara [117]

Answer:

We need to sample at least 1069 parents.

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1-0.9}{2} = 0.05

Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

So it is z with a pvalue of 1-0.05 = 0.95, so z = 1.645

Now, find the margin of error M as such

M = z*\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample.

How many parents do you have to sample?

We need to sample at least n parents.

n is found when M = 4, \sigma = 79.5. So

M = z*\frac{\sigma}{\sqrt{n}}

4 = 1.645*\frac{79.5}{\sqrt{n}}

4\sqrt{n} = 1.645*79.5

\sqrt{n} = \frac{1.645*79.5}{4}

(\sqrt{n})^{2} = (\frac{1.645*79.5}{4})^{2}

n = 1068.92

Rounding up

We need to sample at least 1069 parents.

6 0
3 years ago
Read 2 more answers
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