Answer:
14. 28 inches
15. 6.3 cm
16. 1/2 yard
Step-by-step explanation:
14. use the pythagorean theorem for this problem
a^2 + 45^2 = 53^2
you get a^2+2025=2809
subtract 2025 from both sides to get
a^2=784
square root both sides to get 28
15. same thing as question 14
1.6^2+b^2=6.5^2
2.56+b^2=42.25
subtract 2.56 from both sides
b^2=39.69
square root both sides to get your answer
b = 6.3cm
16. again use the pythagorean theorem
.3^2+.4^2=c^2
.09+.16=c^2
.25 = c^2
square root both sides to get
c = .5
or
c = 1/2 yard
Answer:
9g/mL
Step-by-step explanation:
The density of something is mass/volume and the density of something never changes, no matter how much or how little there is of it.
We know that the mass of Cu (copper) is 45g and its volume is 5.0mL.
density = 45g/5.0mL
Plug that into a calculator and you'll get your answer.
Answer:
Each candy bar was $3
Step-by-step explanation:
You subtract the 3 dollar soda from the total to find out how much he spent on candy bars all together.Then, you divide that number by how many candy bars he purchased, 6 to get your answer, $3