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snow_lady [41]
3 years ago
8

Can someone help me with this math question & show steps ?

Mathematics
2 answers:
forsale [732]3 years ago
7 0

a xuz if u work it out ull get a

d1i1m1o1n [39]3 years ago
7 0
A=2πrh+2πr2=2·π·11·7+2·π·112≈1244.07069
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In a recent​ poll, 44​% of survey respondents said​ that, if they only had one​ child, they would prefer the child to be a boy.
viva [34]

Answer:

a) The probability that 71 of 150 will prefer boy child is 71/150 or 0.47

b) The result contradicts the poll actual percentage is 47.33% which is 3.33% more than the poll predicted

Step-by-step explanation:

If 71 out of 150 prefer boy child

The probability that the 71 will prefer boy child is

= 71/150

The actual percentage is

(71/150)*100%

= 47.33%

This contradicts the poll as this is more than the poll predicted. That means Less than 71 of 150 actually preferred boy child.

5 0
3 years ago
Dividir entre la raíz más cercana
inna [77]
Where is the question ?
7 0
1 year ago
Interoperate your solution in the context of the problem.<br> f(10)=1.75r+9
iVinArrow [24]

Answer:

Simplifying

f(r) = 5 + 1.75r

Multiply f * r

fr = 5 + 1.75r

Solving

fr = 5 + 1.75r

Solving for variable 'f'.

Move all terms containing f to the left, all other terms to the right.

Divide each side by 'r'.

f = 5r-1 + 1.75

Simplifying

f = 5r-1 + 1.75

Reorder the terms:

f = 1.75 + 5r-1

Step-by-step explanation:

tada i think

6 0
3 years ago
Read 2 more answers
9 7/8 - ( -2 4/5 - 1/2)
Viefleur [7K]

Answer:

9 7/8 - ( -2 4/5 - 1/2)  = 13.175

Step-by-step explanation:

Hope this is correct and helps.

3 0
2 years ago
A cone has a diameter of 18 in. and a height of 14 in.
Bond [772]
Cone's volume is V =  \frac{1}{3}Sh
where    S - surface area,  h - height
Surface area =  \pi r^2

r = 18/2=9
h= 14
π = 3.14
V= \frac{1}{3}  \pi r^2h= \frac{1}{3} *3.14*9^2*14= \frac{1}{3} *3.14*81*14=27*14*3.14[/tex]
V = 1186.92 in.^3


6 0
3 years ago
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