Answer:
1767 cm³
Step-by-step explanation:
We can use volume V = 4/3 π r³
We have diameter of 15 cm. To get radius, we need to divide diameter by 2.
r = 7.5 cm
So now plug in r = 7.5 then calculate V:
V = 4/3 π ( 7.5 )³
V = 4/3 π * 421.875 ≈ 1767.145 ≈ 1767
Hope this helps.
7: 2 -(4-7) + (-7) +10
2 +3 -7 +10
= 8
9: (-10) x (-5) + (-4) + 5 -(-10)
(50) -4 +5 +10
= 61
hope this helps :) (please mark brainliest!)
Answer:
The rate of change was 3.5 degrees / h.
Step-by-step explanation:
In order to calculate the rate of change we need to divide the variation of temperature by the variation of time. Since the time is given to us in a 12 h format (am/pm), we first need to convert it to 24 h. To do that we sum the time that is "pm" by 12, we have:
time2 = 3 + 12 = 15
Therefore the rate of change in temperature is:
rate = variation of temp / variation of time
rate = (temp final - temp init) / (time final - time init)
rate = (82 - 54) / (15 - 7) = 28 / 8 = 3.5 degrees / h
The rate of change was 3.5 degrees / h.
Answer:
1. 148
2. 17
Step-by-step explanation:
1. m<FEC + m<CED = m<FED
32 + m<CED = 180
m<CED = 180 - 32
m<CED = 148
2. m<CEA + m<AED = m<CED
(6x - 20) + (3x + 18) = 151
9x - 2 = 151
9x = 153
x = 17
