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Orlov [11]
3 years ago
13

Solve the system of equations.

Mathematics
1 answer:
Sauron [17]3 years ago
6 0

Answer: A. X= -5, Y= 3, Z= 4

Step-by-step explanation:

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A machine is designed to fill 16-ounce bottles of shampoo. When the machine is working properly, the amount poured into the bott
Andreyy89

Answer:

(15.8495,16.2505)  

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 16.05 ounces

Standard Deviation, σ = 0.2005 ounces

We are given that the distribution of amount poured into the bottles is a bell shaped distribution that is a normal distribution.

Empirical rule:

  • It states that for a normal distribution, almost all data falls within three standard deviations (denoted by σ) of the mean (denoted by µ).
  1. It shows that 68% falls within the first standard deviation (µ ± σ), 95% within the first two standard deviations (µ ± 2σ), and 99.7% within the first three standard deviations (µ ± 3σ).

Confidence interval:

\mu \pm 2\frac{\sigma}{\sqrt{n}}

Putting the values, we get,

16.05 \pm 2(\frac{0.2005}{\sqrt{4}} ) = 16.05 \pm 0.2005 = (15.8495,16.2505)

4 0
3 years ago
. 14 - (-10) 4 -4 24 -24
Dennis_Churaev [7]

Answer:

24

Step-by-step explanation:

14 - (-10)

A negative negative is a postive

14 + 10

24

7 0
3 years ago
Can anyone help me please? Also explain if you can. Thank you :)
djverab [1.8K]
The answer is 6/9 or 2/3 because 2X2X2=8 and 9X9X9=729......it equals 8/729 






3 0
3 years ago
Find a common solution for each system of equations:<br> y=3x+5<br> y=-5x-3
Nina [5.8K]
\left\{\begin{array}{ccc}y=3x+5\\y=-5x-3\end{array}\right\\\\substitution\ method\\\\3x+5=-5x-3\\3x+5x=-3-5\\8x=-8\ \ \ \ \ /:8\\x=-1\\\\y=3(-1)+5=-3+5=2\\\\Solution:x=-1\ and\ y=2.

graphing\ method\\\\  \left\{\begin{array}{ccc}y=3x+5\\y=-5x-3\end{array}\right\\------------------\\y=3x+5\\y-intercept\ (x=0)\\y=3(0)+5=5\\(0;\ 5)\\x-intercept\ (y=0)\\3x+5=0\\3x=-5\\x=-\frac{5}{3}\\(-\frac{5}{3};\ 0)\\---------------------
y=-5x-3\\y-intercept\ (x=0)\\y=-5(0)-3=-3\\(0;-3)\\x-intercept\ (y=0)\\-5x-3=0\\-5x=3\\x=-\frac{3}{5}\\(-\frac{3}{5};\ 0)\\\\Solution:((-1;\ 2)\to x=-1\ and\ y=2.

8 0
4 years ago
Li deposited $17,500 into a bank account that earned simple interest each year. After 2 years, he had earned $2975 in interest.
Keith_Richards [23]

Answer:

The annual interest rate was $1487.50

Step-by-step explanation:

All you do is 2975 divided by2=1487.50

4 0
3 years ago
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