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fgiga [73]
3 years ago
10

Find the length of the base of a square pyramid if the volume is 128 cubic inches and has a height of 6 inches.

Mathematics
2 answers:
Sladkaya [172]3 years ago
6 0

Answer: The base length of the pyramid is:

8 inches

Alex777 [14]3 years ago
5 0
The\ value\ of\ the\ square\ pyramid:V=\dfrac{1}{3}BH\\\\B=128in^3;\ H=6in\\\\subtitute:\\\\\dfrac{1}{3}B\cdot6=128\\\\2B=128\ \ \ |divide\ both\ sides\ by\ 2\\\\B=64\ (in)\\\\a-the\ length\ of\ the\ base\\\\B=a^2\\\\a^2=64\to a=\sqrt{64}\to\boxed{a=8\ (in)}
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Three times the sum of a number and 4 is 8 less than one half the number
Gekata [30.6K]
The answer for this question is 3(x+4)=1/2x-8
6 0
4 years ago
Which expression is equivalent to (2 + 6i)(5 + 2i)?
skelet666 [1.2K]

Answer:

c. -2 + 34i

Step-by-step explanation:

(2 + 6i)(5 + 2i)

c. -2 + 34i

4 0
3 years ago
Find the volume of the composite shape. And round to the nearest tenth.
Sindrei [870]

Answer:

2010

Step-by-step explanation:

volume of a cube= hxlxw

5x5x5=125

V=πr2h

π10^2x6=1884.9=1885

1885+125=2010

5 0
2 years ago
Dan paid a total of $25.80 last month for his international calls. He makes international calls only to England. Dan pays $0.06
hammer [34]

Hello,

I Believe he used a total of 247 minutes.

Solution:

You want to subtract $10.98 from $25.80 because that is the monthly fee.

You are left with $14.82.

Now you divide $14.82 by $0.06 which is what every minute cost him.

and you get 247.


If you are solving for y the answer is -1

-4(24+8y)=-64 You want to distribute

-96-32y=-64 Then add 96 to each side

-32y=32 finally divide by -32

y=-1


Hope this helps!!!! :)

**(Vanessa)**



*Please leave a 'Thanks' trying to raise it up. Can you also mark me Brainliest trying to also raise that up!?


4 0
3 years ago
PLEASE HELP
arsen [322]

Answer:

Answer is b) 20.

Step-by-step explanation:

Mean is 0.43 kg.

0.43+0.1+0.1= 0.45

0.45 is two standard deviation above.

All that are below mean is 50%,

Two standard deviation above is 95%/2=47.5%

50%+47.5% =97.7% are  balls that are less than 0.45 kg.

100%-97.7%=2.5% balls that are more than 0.45 kg

2.3%=0.025

800*0.025 = 20 soccer balls weigh more than 0.45 kg

6 0
3 years ago
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