Answer:
D.$80
Step-by-step explanation:
$5.26 x 15.5= $81.53
The closest amount to $81.53 is D.$80
answer
given
v=2100cm³
h=3r
v=1/3πr²h
soln
v=1/3πr²h
2100cm³=1/3×π×r²×3r( you will insert 3r in the place of h.)
2100cm³=3π/3×r³(cancel 3 by 3)
2100cm³= πr³
r³=2100cm³/3.14 ( π=3.14)
¾r³=¾2100cm³/3.14(I make them cube root.sorry I can't use the real cube root so I replace it by ¾)
r=8.74…
Answer:
11.7 cm
Step-by-step explanation:
Using Pythagoras Theorem
AC² = AB² + BC²
AB = 4 cm
BC = 11 cm
AC² = 4² + 11²
AC = √4² + 11²
AC =✓137
AC = 11.704699911 cm
Approximately = 11.7 cm
Length AC = 11.7cm
Answer: a=-3.4
Step-by-step explanation: you mean solve for a:)
-2a+7-3(-9-4a)=0 We would have to equal this equation to 0
-2a+7+27+12a=0 We multiply the -3 with the parentheses
10a+34=0 Add the like terms, and subtract 34 from both sides
10a=-34 Then divide both sides by 10
a=-3.4
Answer:52.714
Step-by-step explanation:Used desmos to find the mean.
