Probably like ten maybe four
Hey, the sum of these two is -1/8. You can use the LCD of 8 and go from there.
Answer:
The mass is 25.68 g
Step-by-step explanation:
To find the volume, you are going to use the amount of water displaced when the object is added. The water goes from 70 mL to 78mL, with an 8mL displacement.
An important formula to know for density equations is 1 milliliter is equal to 1 cm^3
So 8mL= 8cm^3 is the volume
The formula for density is Density = mass/volume
Density= 3.21 g/cm^3
Volume= 8cm^3
3.21 g/cm^3 = mass / 8cm^3
8 cm^3 * 3.21 g/cm^3 =
The cm^3 cancels out leaving the mass at 25.68 g
I hope this helps! :)
To get the area of the half circle, do π r².
Let's use 3.14 as pi.
First square 2 to get 4 then multiply it by 3.14 to get 12.56. Since this is a half circle we have to divide it by 2 for the area: 6.28.
Then for the triangle multiply 6 times 2 (12) then divide it by 2 to get 6. Then add the two together to get 12.28 then round to the nearest tenth to get a final answer of 12.3 m². Hope this helps!
I believe the answer would be 300. One eighth of the class would be 100 and 1/2 of the class would be 400. 800-(400+100)=300. Hope this helped!
