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Inessa05 [86]
3 years ago
7

The sum of three consecutive even integers is 66. Which equation represents the scenario? x = 66

Mathematics
1 answer:
vesna_86 [32]3 years ago
5 0

Answer:

(D)

x + (x + 2) + (x + 4) = 66

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If $4500 earns $120 simple interest at a flat rate of 2% p.a., calculate the duration of the investment.
Nimfa-mama [501]

Answer:

1.33 years.

Step-by-step explanation:

I=PRT

120=4500(0.02)T

120/90=T

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3 years ago
A local board of education conducted a survey of residents in the community concerning a property tax levy on the coming local b
IrinaK [193]

Answer:

a. [ 0.454,0.51]

b. 599.472 ~ 600

Step-by-step explanation:

a)

Confidence Interval For Proportion

CI = p ± Z a/2 Sqrt(p*(1-p)/n)))

x = Mean

n = Sample Size

a = 1 - (Confidence Level/100)

Za/2 = Z-table value

CI = Confidence Interval

Mean(x)=410

Sample Size(n)=850

Sample proportion = x/n =0.482

Confidence Interval = [ 0.482 ±Z a/2 ( Sqrt ( 0.482*0.518) /850)]

= [ 0.482 - 1.645* Sqrt(0) , 0.482 + 1.65* Sqrt(0) ]

= [ 0.454,0.51]

b)

Compute Sample Size ( n ) = n=(Z/E)^2*p*(1-p)

Z a/2 at 0.05 is = 1.96

Samle Proportion = 0.482

ME = 0.04

n = ( 1.96 / 0.04 )^2 * 0.482*0.518

= 599.472 ~ 600

8 0
3 years ago
Which number line model of the sum of 8 + -12 correctly ​
hoa [83]

Answer:

U did not add a picture but if u do I will help.

Step-by-step explanation:

It should be 8 to the right and 12 to the left which should end at -4

4 0
2 years ago
Read 2 more answers
I GIVEEEEE BRAINLILSTE
charle [14.2K]

Answer:

20.4cm²

Step-by-step explanation:

base= 10.2

height= 2

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3 0
3 years ago
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If 8 feet of fencing costs $12.40 , how much does 36 feet of fencing cost?
Vesnalui [34]

Answer:

$55.80

Step-by-step explanation:

8, 16, 24, 32, 36

8=12.40, 16=24.80, 24=37.2, 32=49.6,

+4 makes it 36 so it's have of 8, so add 6.20 to the end and it's 55.80

6 0
3 years ago
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