In △CDE , DE=10 , CE=5 , and m∠E=58∘ .

What is the length of CD¯?

Enter your answer, rounded to the nearest hundredth, in the box.

The length of CD is 8.5

Explanation:

The image of the triangle CDE with the measurements DE=10 , CE=5 , and m∠E=58 is attached below:

To determine the length of CD, let us use the law of cosine formula.

Thus, we have,

where , and

Substituting these values in the above formula, we get,

Simplifying,we get,

Subtracting, we get,

Taking square root on both sides, we get,

Hence, the length of CD is 8.5

i dont know men

step-by-step explanation:

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.