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mestny [16]
4 years ago
12

Help with simple interest rate P=$18,000, r= 7.5%, t=18 months

Mathematics
1 answer:
n200080 [17]4 years ago
7 0
=2025
change 18months to years=1.5 years then you use the formula
PRT÷100
18000 \times 7.5 \times 1.5 = 202500 \div 100 = 2025

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2. Company A packages roofing nails in boxes that are normally distributed with a mean of 276 nails and a standard deviation of
Natali5045456 [20]

Answer:

Company B

Step-by-step explanation:

We would use z score formula

z = (x - μ) / σ

x = raw score

μ = mean

σ = Standard deviation

let x = 260 with the mean μ1 = 276 and standard deviation σ = 5.8

let x = 260 with the mean μ2 = 252 and standard deviation σ = 3.4

z1 = (x- μ1) / σ = (260- 276) / 5.8 = -2.7586206897 = -2.76

z2 = (x2 - μ) / σ = (260 -252) / 3.4= 2.3529411765 = 2.35

Comparing the two z scores, we can see that company B has the probability of producing 260 nails because it has a z score of 2.35 compared to company A with a z score of -2.76.

6 0
3 years ago
Determine whether each expression is a polynomial. If it is a polynomial, state the degree of the polynomial. 3x3 - 4x2
Andrei [34K]
In this equation the degree is a polynomial.
Answer) D<span>egree 3 </span>
6 0
3 years ago
Help with the 3rd one pleaseee asap
Sauron [17]

Answer:

it's c

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Part 1: Joe and Hope were both asked to factor the following polynomial completely. Is one of them correct? Both of them? Neithe
Arte-miy333 [17]
<h3>Part 1</h3>

If we simplify, both Joe and Hope factored the polynomial correctly but Joe didn't complete it fully.

<u>The first binomial can be further factored:</u>

  • 8x + 12 = 4(2x + 3)
<h3>Part 2</h3>

The quadratic expression needs to have two roots in order to be factored as two binomials.

<u>The discriminant must be positive or zero:</u>

  • D = b² - 4ac ≥ 0

We have a = 3, b = k, c = -8

<u>So we get following inequality:</u>

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  • k² + 96 ≥ 0

<u>Since k² is positive for any value of k, the solution is any value of k:</u>

  • k ∈ R
7 0
3 years ago
Read 2 more answers
A $425 stereo is marked down by 15% what is the new price​
Firlakuza [10]

Answer:

The final price is $361.25

Step-by-step explanation:

Discount = Original Price x Discount %/100

Discount = 425 × 15/100

Discount = 425 x 0.15

You save = $63.75

Final Price = Original Price - Discount

Final Price = 425 - 63.75

Final Price = $361.25

3 0
3 years ago
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