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LenaWriter [7]
3 years ago
11

What is 8.21 as a mixed number

Mathematics
2 answers:
babymother [125]3 years ago
8 0
8 21/100 is your answer! :)
m_a_m_a [10]3 years ago
4 0
Well first of all we know that 8.21 as a fraction is 
821
------
100
but thats not as a mixed number 
in order to change it to a mixed number we need to see how many time we can fit 100 into 821
in this case it only fits 8 times so thats our whole number
but 21 is left over! we put it as our numerator and keep 100 the same as our denominator. heres what it looks like now
      21
8 --------
     100
merry christmas:)
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Pls answer giving brainleist
astra-53 [7]

Answer:

The last 3 are OR inequalities

Step-by-step explanation:

Because they are not meeting the center, they are going opposite directions.

Hope This works.

8 0
3 years ago
The 90% confidence interval for the mean one-way commuting time in New York City is
Zinaida [17]

Answer:

95% provides more information

Step-by-step explanation:

The confidence interval is obtained by using the relation :

Xbar ± Zcritical * σ/√n

(Xbar - (Zcritical * σ/√n)) = 5.22 - - - (1)

(Xbar + (Zcritical * σ/√n)) = 5.98 - - (2)

Adding (1) and (2)

2xbar = 5.22 + 5.98

2xbar = 11.2

xbar = 11.2 / 2 = 5.6

Margin of Error :

Xbar - lower C.I = Zcritical * σ/√n

Zcritical at 90% = 1.645

5.6 - 5.22 = 1.645 * (σ/√n)

0.38 = 1.645 * (σ/√n)

(σ/√n) = 0.38 / 1.645 = 0.231

Therefore, using the se parameters to construct at 95%

Zcritical at 95% = 1.96

Margin of Error = Zcritical * σ/√n

Margin of Error = 1.96 * 0.231 = 0.45276

C.I = xbar ± margin of error

C. I = 5.6 ± 0.45276

C.I = (5.6 - 0.45276) ; (5.6 + 0.45276)

C. I = (5.147 ; 6.053)

Hence, 95% confidence interval provides more information as it is wider.

3 0
3 years ago
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xxTIMURxx [149]

Answer:

D) x=6√3, y=3√3

Step-by-step explanation:

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This also means that x will be twice the length of y which means x=2y=2(3√3)=6√3

This means that the correct answer is D) x=6√3, y=3√3

Refer to the diagram below to understand where I got these lengths.

4 0
3 years ago
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OlgaM077 [116]

Answer:

48 degrees

Step-by-step explanation:

Angle 2 is a right angle.

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Angle 1, 5, and 2 form a line.

180-90=90

That means that Angles 1 and 5 add up to 90 degrees.

We know that Angle 3 is 42 degrees.

Angle 3 and 5 are Vertical angles.

Vertical angles are always congruent.

This means that Angle 5 is also 42 degrees.

As we discussed earlier, Angles 1 and 5 are complementary. (Add up to 90 degrees)

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4 0
3 years ago
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LUCKY_DIMON [66]

Answer:

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