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masya89 [10]
3 years ago
15

PLZ HELP!! Will mark brainliest !!! Idk how to do this :((

Mathematics
1 answer:
antoniya [11.8K]3 years ago
7 0

Answer:

Part A: if cosθ = 4/5 and sinθ < 0, then

secθ = 5/4

sinxθ = 3

tanθ = 15/4, cotθ = 12/5, cscx = 1/3

Step-by-step explanation:

Remember, secθ = 1/4/5 --> 1/4 *5/1 = 5/4

sinx, cscx, cotx, and tanx will be negative because since sinθ < 0 and cosθ is positive, this means that the quadrant will be in quadrant 4

To find these values, we have to use the pythagorean identities

cosx = adj/hyp, sinx = opp/hyp, and tanx = adj/opp

Since 4 is the value of the adjacent side, and we know that x² + 4² = 5².

x² + 16 = 25 ---> x² = 9--> x =3.

Since the value of the opposite side equals 3, and sinx = y, y = 3. Now we can find the rest of our trig values.

Remember that cosθ = x and sinθ = y

tanθ = y/x, cotθ = x/y, secθ = 1/x, cscx = 1/y.

So, since cosθ = 4/5 and sinθ = 3,

tanθ = 15/4, cotθ = 12/5, cscx = 1/3

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Step-by-step explanation:

Hello!

The definition of the Central Limi Theorem states that:

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If the variable of interest is X: the number of accidents per week at a hazardous intersection.

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Need help to solve. ​
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3 years ago
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uranmaximum [27]

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Step-by-step explanation:

Change values to whole numbers.

Convert any mixed numbers to fractions.

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5 : 3 1/8 = 5 : 25/8

Convert the whole number 5 to a fraction with 1 in the denominator.

We then have:

5 : 3 1/8 = 5/1 : 25/8

Convert fractions to integers by eliminating the denominators.

Our two fractions have unlike denominators so we find the Least Common Denominator and rewrite our fractions as necessary with the common denominator

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40 : 25 = 8 : 5

4 0
3 years ago
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