Mathematics: PLEASE HELP ME. Select Function or Not A Function.

PLEASE HELP ME. Select Function or Not A Function.

kimberlyalonso6697

05.02.2022

Step-by-step explanation:

a and c are both functions

while b, is not

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rylanzuk

07.04.2022

The ratio that represents the cosine of ∠T is $\frac{56}{65}$

Step-by-step explanation:

We are given:

UV = 56 units

VT = 33 units

UT = 65 units

∠V = 90°

Cosine of an angle is equal to the ratio of base and the hypotenuse of the triangle. ΔTUV is drawn in the image below.

$\cos \theta=\frac{\text{base}}{\text{hypotenuse}}$

Base of the triangle is UV and the hypotenuse of the triangle is TU

Putting values in above equation, we get:

$\cos \theta=\frac{UV}{TU}=\frac{56}{65}$

Hence, the ratio that represents the cosine of ∠T is $\frac{56}{65}$

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