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3 years ago

What is the solution of the system? Use elimination.

Mathematics

1 answer:

blondinia [14]3 years ago

5 0

A is the answer to this question

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I’ve tried for so long and I don’t know any of these please help I need answers

Colt1911 [192]

Answer:

Step-by-step explanation:

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3 years ago

How much interest is earned in 2 years on an investment of $2000? The interest rate is 3%

erik [133]

Answer:
A = $ 2,120.00

Equation:
A = P(1 + rt)
Calculation:
First, converting R percent to r a decimal
r = R/100 = 3%/100 = 0.03 per year,
then, solving our equation

A = 2000(1 + (0.03 × 2)) = 2120
A = $ 2,120.00

The total amount accrued, principal plus interest,
from simple interest on a principal of $ 2,000.00
at a rate of 3% per year
for 2 years is $ 2,120.00.

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2 years ago

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Amanda [17]

Exact form: x= NEGATIVE 6/7

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2 years ago

Help please due in 10 min

vlada-n [284]

Answer:

I think it's 20 I think I'm not sure but try to solve it

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2 years ago

Your boss tells you that she knows the length of the widgets your company makes is normally distributed with a mean of 25 inches

sp2606 [1]

Answer:

Mean of sampling distribution = 25 inches

Standard deviation of sampling distribution = 4 inches

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 25 inches

Standard Deviation, σ = 12 inches

Sample size, n = 9

We are given that the distribution of length of the widgets is a bell shaped distribution that is a normal distribution.

a) Mean of the sampling distribution

The best approximator for the mean of the sampling distribution is the population mean itself.

Thus, we can write:

$\bar{x} = \mu = 25\text{ inches}$

b) Standard deviation of the sampling distribution

$s = \dfrac{\sigma}{\sqrt{n}} = \dfrac{12}{\sqrt{9}} = 4\text{ inches}$

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2 years ago