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balu736 [363]
4 years ago
10

How to find the scale factor of a drawing

Mathematics
1 answer:
Zanzabum4 years ago
6 0
To find scale factor between similar figures , find two corresponding sides and write the ratio of the two sides . if you begin with the smaller figure your scale factor will be less than one . if you begin with a larger figure your scale factor will be larger than one .
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Suppose SAT Writing scores are normally distributed with a mean of 488488 and a standard deviation of 111111. A university plans
makvit [3.9K]

Answer:

The minimum score required for the scholarship is 644.

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 488, \sigma = 111

What is the minimum score required for the scholarship?

Top 8%, which means that the minimum score is the 100-8 = 92th percentile, which is X when Z has a pvalue of 0.92. So it is X when Z = 1.405.

Z = \frac{X - \mu}{\sigma}

1.405 = \frac{X - 488}{111}

X - 488 = 1.405*111

X = 644

The minimum score required for the scholarship is 644.

4 0
4 years ago
Please help me ASAP
o-na [289]
I think its 9,43 units
5 0
3 years ago
Really need help I don't understand ​
Mrrafil [7]

we know the circumference shown for that picture is π miles, what would it be for the diameter?  namely how long is the diameter of that circle whose circumference is π miles?

\bf \textit{circumference of a circle}\\\\ C=\pi d~~ \begin{cases} d=diameter\\ \cline{1-1} C=\pi \end{cases}\implies \pi =\pi d\implies \cfrac{~~\begin{matrix} \pi \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~}{~~\begin{matrix} \pi \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~}=d\implies 1=d

6 0
4 years ago
The equation b = 4a - 5 and the table represent two different functions. The table represents ‘c’ as a function of ‘a’.
Annette [7]

Answer: a 4

Step-by-step explanation: a 5 6 a

6 0
3 years ago
Can someone please help I'm trying to get my grade up but I'm struggling
melamori03 [73]
1. B
2. D I'm not sure about this one
3. A
4. C
5. C
6. B
7. -9
8. 1
9. -2
10. 5
Hope this helps! I'm sure about all except for number 2!
6 0
4 years ago
Read 2 more answers
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