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FrozenT [24]
3 years ago
11

Simplify. 2 • (–2)4 + 101

Mathematics
1 answer:
SCORPION-xisa [38]3 years ago
6 0

Answer: following PEMDAS parentheses first, so (-2 )* 4= -8 next multiplication -8 * 2= -16 finally addition 101 + -16 = 85

Hope this helps :)

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Two similar cones have volume of 4 m and 108 m respectively. If the large one has surface area 54 m, find the surface area of th
trasher [3.6K]

 

\displaystyle\bf\\Explanations:\\\\The~similarity~ratio~of~two~similar~cones=k\\\\k=is~the~ratio~between~2~corresponding~lengths\\\\k=\frac{R_1}{R_2}=\frac{h_1}{h_2}\\\\The~ratio~between~2~corresponding~areas~of~similar~cones=k^2\\\\\frac{Area~1}{Area~2}=k^2\\\\The~ratio~between~the~volumes~of~the~2~similar~cones=k^3\\\\\frac{Volume~1}{Volume~2}=k^3

.

\displaystyle\bf\\Solving:\\\\Volume1=108~m^3\\\\Volume2=4m^3\\\\k^3=\frac{108}{4}\\\\k^3=27~~\Big|\sqrt{~}\\\\k=\sqrt[\b3]{27}\\\\k=3\\\\Area1=54~m^2\\\\\frac{Area~1}{Area~2}=k^2\\\\\frac{54}{Area~2}=3^2\\\\\frac{54}{Area~2}=9\\\\Area2=\frac{54}{9}\\\\\boxed{\bf Area2=6 m^2}

 

4 0
3 years ago
Is 2×2×5×5×7×7 a square number ? explain your answer.
givi [52]
Yes because you end up with 4,900 which is 70x70
8 0
3 years ago
Is 3/8 equal to 4/10?
BaLLatris [955]
8ths are divided by 12.5 so 3 * 12.5 is 37.5
10ths are divided by 10 so 4 * 10 is 40

3/8 is < / = 4/10
3 0
3 years ago
Translate into an expression:<br> two more than three times
melamori03 [73]

Answer:

Boggla

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
It you drive 7 hours and travel 280 miles what is your fate
liraira [26]

Answer:

280/7

Step-by-step explanation:

280/7 = 40

3 0
3 years ago
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