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lesantik [10]
3 years ago
6

I got so confused with this math because since it’s Halloween my teacher nearly didn’t teach us

Mathematics
1 answer:
pashok25 [27]3 years ago
8 0
To answer this question, I need to know how much of each fruit Adrian bought
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Simplify the following expression:
Morgarella [4.7K]

Answer:

2nd option

Step-by-step explanation:

Given

2x - 8y + 3x² + 7y - 12x ← collect like terms

= 3x² + (2x - 12x) + (- 8y + 7y)

= 3x² + (- 10x) + (- y)

= 3x² - 10x - y

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2 years ago
El equivalente de 4/6 ​
Diano4ka-milaya [45]
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HELPㅔPLS! BOTS STAY AWAY!! The mean amount of money withdrawn from
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The answer is $45 it wasn’t that hard

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3 years ago
Read 2 more answers
he XO Group Inc. conducted a survey of brides and grooms married in the United States and found that the average cost of a weddi
ahrayia [7]

Answer:

A. P(X<20,000) = 0.0392

B. P(20,000 < x < 30,000) = 0.488

C. Amount = $39,070

Step-by-step explanation:

From XO group website

Cost of a wedding = $29,858

Mean, μ = $29,858

Standard Deviation, σ =$5,600

a. Calculating the probability that a wedding costs less than $20,000

P(X<20,000)?

First, the z value needs to be calculated.

z = (x - μ)/σ

x = 20,000

z = (20,000 - 29,858)/5600

z = -1.76

So, P(X<20,000) = P(Z<-1.76)

From the z table,

P(Z<-1.76) = 0.0392

P(X<20,000) = 0.0392

b. Calculating the probability that a wedding costs between $20,000 and $30,000

P(20,000 < x < 30,000)

First, the z value needs to be calculated.

z = (x - μ)/σ

When x = 20,000

z = (20,000 - 29,858)/5600

z = -1.76

When x = 30,000

z = (30,000 - 29,858)/5600

z = 0.02

P(20,000 < x < 30,000) = P(-1.76 < z <0.02) --- using the z table

P(-1.76 < z <0.02) = 0.508 - 0.0392

P(-1.76 < z <0.02) = 0.4688

P(20,000 < x < 30,000) = 0.488

c. Using the following formula, we'll get the amount it'll a wedding to be among the 5% most expensive

z = (x - μ)/σ where x = amount

Make x the subject of formula

x = σz + μ

Fist we need to get the z value of 5%

z0.05 = 1.645

x = σz + μ becomes

x = 5600 * 1.645 + 29,858

x = $39,070

Amount = $39,070

5 0
3 years ago
What is the answer to <img src="https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B1000%7D" id="TexFormula1" title="\sqrt[3]{1000}" alt="\
liubo4ka [24]

Therefore, cube root of 1000 is 10.

Step-by-step explanation:

= 3√1000

= 3√(10 × 10 × 10)

= 3√(103)

= 10

6 0
2 years ago
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