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Pavlova-9 [17]
3 years ago
14

Can some explain and help me

Mathematics
1 answer:
Anna71 [15]3 years ago
7 0

Answer:

its b

Step-by-step explanation:


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What is the margin of error for a yes/no survey of 200 people with a proportion of 65% who answered \"yes\"?. A. ±3.37%. B. ±5.0
azamat
\sqrt{(p*q)/n}

where p is the number of positive outcomes (yes) and q is the number of negative outcomes (no).

\sqrt{(0.65*(1-0.65))/200} = 0.0337 or 3.37%

answer is A.
6 0
4 years ago
A sheet of glass has a density of 2.5 g/cm3. what is the density of the glass in kg/m3
asambeis [7]

Answer:

this is ez

Step-by-step explanation:

2.5 g converted to kg: 2.5 g x 1 kg/1000 g = 0.0025 kg = 2.5x10-3 kg

cm3 converted to m3: 1 cm3 x 10-6 m3/cm3 = 1x10-6 m3

Thus, the conversion of 2.5 g/cm3 to kg/m3 would be 2.5x10-3 kg/10-6 m3 = 2.5x103 kg/m3 = 2500 kg/m3

7 0
3 years ago
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Lilian says that 25% of a number will always be less than 75% of any other number. Complete one inequality to support Lillian's
rjkz [21]
She is incorrect cause if we take the number 20 and take 25% of it it equals 5 so now 20 is only 15. They if we take 75% away from 20 is equals 15 so then we only have 5 from 20 left. Therefore she’s incorrect because 75% leaves 5/20 and 25% leaves 15/20. Hope that makes sense.
6 0
3 years ago
??????????????????????????
Zinaida [17]

Answer:

D

Step-by-step explanation:

A)

3(2) + 4(-2) = -2                    2(2)-4(-2) = -8

6 - 8 = -2                              4 + 8 = -8

Correct                                 Incorrect  

B)

3(6) + 4(-5) = -2                    2(6) - 4(-5) = -8  

18 - 20 = -2                            12 + 20 = -8

Correct                                 incorrect

C)

3(4) + 4(4) = -2

12 + 8 = -2

incorrect

D)

3(-2) + 4(1) =-2                        2(-2) - 4(1) = -8

-6 + 4 = -2                                 -4 - 4 = -8

Correct                                      Correct

Best way is process of elimination

5 0
3 years ago
Plz helppp!!!!! I NEED IT NOWW !!!!!!!!!!!!!!!!
VashaNatasha [74]

Answer:

We Them holler boys holler if you need and something don't holler if you need a chip on her shoulder or a high-end with a loaded gun will be out that screen door no shirt on leaving two black marks down the one-lane road yeah we yeah we yeah wheel am I

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3 years ago
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