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allochka39001 [22]
3 years ago
10

True or False? The product of 4 negative numbers is negative.

Mathematics
2 answers:
Romashka-Z-Leto [24]3 years ago
7 0

Answer:

Hello!!! Princess Sakura here ^^

Step-by-step explanation:

It's false because if there is an even amount of negative numbers the product will always be even.

Whitepunk [10]3 years ago
7 0

Answer:

false

Step-by-step explanation:

e.g

(-2) x (-2) = +4

(-2) x (-2) x (-2) = -8

(-2) x (-2) x (-2) x (-2) = +16

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1. What is the value of x in the figure?<br> (4x + 2)<br> 150°
vlabodo [156]
X = 37
150= 4x + 2
148 = 4x
X = 37
3 0
2 years ago
Consider the following time series data. Week 1 2 3 4 5 6 Value 18 12 15 10 18 14 Using the naive method (most recent value) as
fenix001 [56]

Answer:

(a) MAE = 5.20

(b) MSE = 10

(c) MAPE = 38.60%

(d) Forecast for week 7 = 14

Step-by-step explanation:

Note: See the attached excel for the calculations of the Error, Error^2, and Error %.

(a) mean absolute error

MAE = Total of absolute value of error / Number of observations considered = |Error| / 5 = 26 / 5 = 5.20

(b) mean squared error

MSE = Total of Error^2 / Number of observations considered = Error^2 / 5 = 150 / 5 = 10

(c) mean absolute percentage error (Round your answer to two decimal places.)

MAPE = Total of Error % / Number of observations considered = Error % / 5 = 193.02 / 5 = 38.60%

(d) What is the forecast for week 7?

Since the forecast is based on the naive method (most recent value), the forecast for week 7 is value for week 6. Therefore, we have:

Forecast for week 7 = 14

Download xlsx
6 0
2 years ago
*****REALLY NEED IMMEDIATE HELP***<br> (Answer?)
Step2247 [10]

Answer:

eegstecation

Yea YEA

Step-by-step explanation:

8 0
2 years ago
How many solutions does the equation −3x−17=−17−3x have?
harkovskaia [24]

Answer:

an infinite number of solutions

Step-by-step explanation:

−3x −17 = −17 −3x

left side = right side  TRUE because -3x-17 is the same as -17-3x

we can rearrange  the the equation

−3x −17 +17 = −17 +17−3x, add 17 on both sides of the equations

            -3x = -3x, divide both sides by (-3)

               x = x

Since this equation is <u>always true ( for any number ) </u>we have <u>an infinite number of solutions</u> (since there are is an infinity of numbers.)

8 0
3 years ago
What is the value of x in the equation 5x-7=28
fredd [130]

5x -7 = 28

Add 7 to both sides:

5x = 35

Divide both sides by 5:

X = 7

The answer is x = 7

6 0
2 years ago
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