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2 years ago

Find the length of FV

Mathematics

2 answers:

Anna [14]2 years ago

6 0

Answer:

72.47

Step-by-step explanation:

FV cos 43 = TV

FV (0.73135370161 ) = 53

FV = 72.468 = 72.47

QveST [7]2 years ago

4 0

Answer:

Step-by-step explanation:

Using the cosine ratio in the right triangle

cos43° = $\frac{adjacent}{hypotenuse}$ = $\frac{TV}{FV}$ = $\frac{53}{FV}$ ( multiply both sides by FV )

FV × cos43° = 53 ( divide both sides by cos43° )

FV = $\frac{53}{cos43}$ ≈ 72.47 ( to 2 dec. places )

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3 years ago

Find the midpoint of side EF. (4 points)

umka2103 [35]

Answer:

Midpoint of side EF would be (-.5,4.5)

Step-by-step explanation:

We know that the coordinates of a mid-point C(e,f) of a line segment AB with vertices A(a,b) and B(c,d) is given by:

e=a+c/2,f=b+d/2

Here we have to find the mid-point of side EF.

E(-2,3) i.e. (a,b)=(2,3)

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1 year ago

Percentage grade averages were taken across all disciplines at a particular university, and the mean average was found to be 83.

Georgia [21]

Correct Ans:
Option A. 0.0100

Solution:
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First step will be to convert the given score into z score for given mean, standard deviation and sample size and then use that z score to find the said probability. So converting the value to z score:

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So, 90 converted to z score for given data is 2.326. Now using the z-table we are to find the probability of z score to be greater than 2.326. The probability comes out to be 0.01.

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3 years ago

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