Answer:
k = 26
Step-by-step explanation:
90 + 8 = x + k
x = 72
90 + 8 = 72 + k
90 + 8 = 98
98 = 72 + k
98 = 72 + k
-72 -72
98 - 72 = 26
72 + k - 72 = k
26 = k
k = 26
Answer:
b
Step-by-step explanation:
Answer:
168
Step-by-step explanation:
If u can make 14 in 5 mins then u will make 168 in an hour. 60min/5min=12min, 12*14=168
Hey there! :)
Answer:
V = 3408 units³
Step-by-step explanation:
Given:
r = 12
h = 71
Volume of a cone: V = 1/3 (bh) where b = πr²
Calculate the area of the base:
A = 12²π
A = 144π units²
Plug this into the formula for the volume of a cone:
V = 1/3 (144π · 71)
V = 1/3 (10224)
V = 3408 units³
I'll start 18 and 22 for you, and you should then be able to do the rest on your own!
For 18, what we literally do is apply the distance formula for all the points and add them up. For B to C, we get the distance between them to be
sqrt((x1-x2)^2+(y1-y2)^2)=sqrt((0-4)^2+(3-(-1))^2)=sqrt((-4)^2+4^2)=sqrt(16+16)=sqrt(32). Repeat the process for C to E, E and F, and F to B then add the results up to get your answer!
For 22, since the area of a rectangle is length*width (we know given the right angles and that the opposite sides are equal in how long they are), we can multiply 2 perpendicular lines, for example, BC and CE to get sqrt(32)*sqrt(8)=16 as the area
