Brianna is 2 years less than 4 times the age of Zack. If Zack's age in years is y, which expression represents Brianna's age?
2 answers:
You might be interested in
Answer:
c = 0.38 J/g °C
Step-by-step explanation:
We have,
Mass of metal X is 95.4 g
Initial temperature was 25°C and final temperature is 48°C.
The metal absorbs 849 J of heat
The heat absorbed due to change in temperature is given by :
So, the specific heat of metal X is 0.38 J/g °C.
Answer:
The answer is <ACD = 68°
Step-by-step explanation:
Using the property that the sum of interior angles in a triangle is equal 180°,we have:
<DAC + <ACD + <ADC = 180°
Finally, calculating the angle <ACD, we have:
<ACD = 180 - 4x
<ACD = 180 - 4 . 28
<ACD = 180 - 112
ACD = 68°