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3 years ago

Ok ok I know this looks easy but I’m dumb so,yeah

Mathematics

2 answers:

siniylev [52]3 years ago

4 0

So all the items are half price. Then what is the half of 3?

3/2 = 1.5 because 1.5 + 1.5 = 3.

So the jacket was sold for $1.5.

P.S.: Why is the jacket so cheap?

Rashid [163]3 years ago

4 0

Answer:

$1.50

Step-by-step explanation:

3.00 divided by 2 (half) is 1.5 and you add the 0 so it’s $1.50

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What is the length of HG?

Leviafan [203]

Answer:

$HG = 5$

Step-by-step explanation:

Given

$HE = 8mm$

$EF = 12mm$

$Area = 68mm^2$

Find the length of HG

First, it should be noted that the displayed figure is a trapezium

<em>The area of a trapezium is calculated by multiplying the sum of parallel sides by half its height;</em>

In this case;

$Area = \frac{HG + EF}{2} * HE$

Substitute the values of Area, HE and EF

$68 = \frac{HG + 12}{2} * 8$

$68 = (HG + 12) * 4$

Divide both sides by 4

$\frac{68}{4} = \frac{(HG + 12) * 4}{4}$

$17 = HG + 12$

Subtract 12 from both sides

$17 - 12 = HG + 12 - 12$

$5 = HG$

$HG = 5$

<em>Hence, the length of HG is 5mm</em>

6 0

3 years ago

Can you please tell me what -4x + 9x is?

Natasha2012 [34]

Answer:

$\boxed{ - 4x +9 x = ( - 4 + 9)x = 5x}\\$

<h3><u>5x</u> is the right answer.</h3>

4 0

3 years ago

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A random sample of 225 individuals working in a large city indicated that 45 are dissatisfied with their working conditions. Bas

Lorico [155]

Answer:

CI 90 % = [ 0,165 ; 0,235 ]

Lower limit 0,165

upper limit 0,235

Step-by-step explanation:

Sample information:

sample size n = 225

number of dissatisfied individuals x = 45

p = 45/225

p = 0,2 and q = 1 - p q = 1 - 0,2 q = 0,8

p*n = 0,2*225 = 45 and q*n = 0,8*225 = 180

p*n and q*n big enough to use the approximation of binomial distribution to normal distribution

90 % of Confidence Interval then a significance level is α = 10%

α = 0,1 in z table we get z(c) for that significance level

z(c) = 1,28

CI 90 % = [ p ± z(c)*√(p*q)/n ]

z(c) * √(p*q)/n = 1,28 * √ ( 0,2*0,8)/225

z(c) * √(p*q)/n = 1,28 * 0,027

z(c) * √(p*q)/n = 0,035

CI 90 % = [ 0,2 ± 0,035 ]

CI 90 % = [ 0,165 ; 0,235 ]

Lower limit 0,165

upper limit 0,235

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3 years ago

The length of a rectangular air filter is 2 inches less than twice the width. Find the length and width of the filter if the are

ycow [4]

Answer:

let the width be x and length =2x/x

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2 years ago

Point E is on line segment DF. Given DF = 13 and EF = 3, determine the<br> length DE.

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Answer:

DE=10

Step-by-step explanation:

Overall length DF is 13 EF is 3

13-3=10

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3 years ago

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