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IRINA_888 [86]
3 years ago
8

Tom is building a pool. He plans to dig a hole 20 feet wide and 50 feet long. He wants the pool to hold 7500 cubic feet of water

. How deep must he dig the hole?
Mathematics
1 answer:
9966 [12]3 years ago
4 0

Answer: 7.5 feet

Step-by-step explanation:

.

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Find the values of c and d​
forsale [732]

36 + 3c = 90 \\ 3c = 90 - 36 \\ 3c = 54 \\ c = 18

5d + 10 = 90 \\ 5d = 90 - 10 \\ 5d = 80 \\ d = 16

4 0
3 years ago
Li Na has 5 sixths pound of brownies. She places the brownies into containers that hold 1 tenth pound each until she runs out of
ad-work [718]
I did 5/6 ÷ 1/10 and I got 8 2/6 so 9 FULL containers
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2 years ago
(Sec. 2.3) A restaurant having a grand opening is allowing visitors to try 6 different free samples from a selection. Options fo
Akimi4 [234]

Answer:A)35choices

B)475,020choices

C)132choices

D)0.000278

E)0.000166

Step-by-step explanation:

Given 7poultry items represented by 7p

10 red meat items=10R

12 vegetarian items=12V

@

A)there are 7combination 3ways of selecting 3out of 7 poultry items

From the formula nCr=n!/(n-r)!r!

7C3=7!/(7-3)!3!=7!/4!×3!=35choices

b)total items available=7p+10R+12V(denotation explained above)=29items

Choosing 6items implies

29C6=29!/(29-6)!×6!

29!/23!×6!=475,020 ways

C)7C2+10C2+12C2

7!/5!2!+10!/8!2!+12!/10!2!

21+45+66=132 choices

D) probability (choosing 2items from each class)=

7C2+10C2+12C2/29C6

Where 29C6 represent total probable.

21+45+66/29!/23!6!

=132/475020=0.000278choices

E)for meats to be in the majority on a 6choices selection impliee that vegetarian items will be

0,1 or2i.e combination of vegetarian and meat will be(0,6)or(1,5)or(2,4) .

Prob(0veg)+prob(1veg item) or prob(2veg items)

12C0+12C1+12C2/29C6

=1+12+66/475,020

=0.000166

5 0
3 years ago
Is the number <img src="https://tex.z-dn.net/?f=%5Csqrt%7B62%7D" id="TexFormula1" title="\sqrt{62}" alt="\sqrt{62}" align="absmi
mrs_skeptik [129]

Answer:

Irrational.

Step-by-step explanation:

Rational means that it is a whole number and can be written as a fraction. That doesn't apply for square rooted numbers. So, \sqrt{62} is irrational.

4 0
3 years ago
The radius of a circle is 14.2 m. Find the circumference to the nearest tenth.​
lana66690 [7]

Answer:

C=89.2

Step-by-step explanation:

The formula of the circumference of a circle is C=2piR (or C=piD). Now, when calculating, plug in the numbers, giving you C=2pi14.2. Multiply everything, you get a super long irrational number; just round. You will get 89.2.

7 0
2 years ago
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