Please help i need the answers for a test and how to work em out for the future

Given: The angles as shown in the image

To Determine: The measure of angle DEF

Solution

It can be observed that

Question 12

Given:

To Determine: The measure of angle HIU

Solution:

It can be observed that

Therefore, the measure of angle HIU would be

Hence, the measure of angle HIU is 30⁰

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step-by-step explanation:

the rocket cannot penetrate the ground, in a contextual sense, therefore the roots of this equation should be the domain of this function. i'll let you find the roots of this quadratic equation (hint: use the quadratic formula:  

1- c

2-a

step-by-step explanation:

mark brainliest!