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pav-90 [236]
2 years ago
9

{[(8-3)x2]+[5x6)-5]} divided by five

Mathematics
2 answers:
Kobotan [32]2 years ago
6 0
{[(8 - 3) * 2] + [(5 * 6) - 5]} / 5 =
= {[2 * 8 + 2 * (-3)] + 30 - 5} / 5 =
= [(16 - 6) + 25] / 5 =
= (10 + 25) / 5 =
= 35 / 5 =
= 7

Brackets make it look complex but it's not that bad at all :)
nignag [31]2 years ago
3 0

Answer:

The answer is 7.

Step-by-step explanation:

First we will solve this as per pemdas.

{[(8-3)\times2]+[(5\times6)-5]}

= {[5\times2]+[(5\times6)-5]}

=> {[10]+[(30)-5]}

=>  {[10]+[25]}

= 35

Now 35 divided by 5 = 7

\frac{35}{5}=7

Therefore, the answer is 7.

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A local company wants to evaluate their quality of service by surveying their customers.
stich3 [128]

Answer: b. 0.98

Step-by-step explanation:

The formula to find the maximum error of the estimated mean :

E=z^*\dfrac{\sigma}{\sqrt{n}}            (1)

, where \sigma = standard deviation

n= Sample size

z* = Critical z-value.

As per given , we have

\sigma=5

n=100

Critical value for 95% confidence interval = z*=1.96

Put these values in the formula (1), we get

E=(1.96)\dfrac{5}{\sqrt{100}}

E=(1.96)\dfrac{5}{10}=0.98

Hence, the maximum error of the estimated mean quality for a 95% level of confidence is 0.98.

Therefore , the correct answer is b. 0.98 .

6 0
2 years ago
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MakcuM [25]

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Step-by-step explanation:

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

h(-4)=12+2

h(-4)=14

7 0
3 years ago
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Someone, please help me with this question.
Viefleur [7K]

Answer:

C.  95°

Step-by-step explanation:

Sumplementary angles sum 180°

144° + a = 180°

a = 180° - 144°

a = 36°

121° + b = 180°

b = 180° - 121°

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The sum of internal angles of a triangle is 180°

a + b + c = 180°

36° + 59° + c° = 180°

c° = 180° - (36°+59°)

c° = 180° - 95°

c° = 85°

then:

c + n = 180°

85° + n = 180°

n = 180° - 85°

n = 95°

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Answer:

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Step-by-step explanation:

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Answer:

-127

Step-by-step explanation:

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