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Elza [17]
3 years ago
7

Question 15: Given l∥m, find the value of x.

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

Answer:

x=8

Step-by-step explanation:

the addition of all the angles must equal 360(the 4 angles on the intersection) degrees

125+125=250

360-250=110

110/2=55

7*8-1=55

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Willie found shirts at a back-to-school sale for $15.25 each. He also found jeans on sale for $32.95 per pair. He purchased 3 sh
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Answer:

111.65

Step-by-step explanation:

$15.25 x 3 = $45.75

$32.95 x 2 = $65.9

Total: $111.65

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3 years ago
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Write an equation in slope-intercept form for the line with slope 7 and y-intercept -5
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Answer:

y = 7x - 5

Step-by-step explanation:

y=mx+b Where m is the slope and b is the y-intercept

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24. Sam, Sonny and Sal are camping in their tents. If the distance between Sam and
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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
3 years ago
Which algebraic expression is a monomial term?
ICE Princess25 [194]

Answer:

  (c)  45x³y

Step-by-step explanation:

Terms of a polynomial expression are separated by + or - signs. If there is only one term, there is no need to separate terms with such signs.

<h3>One term</h3>

The one-term expression is ...

  45x³y

__

<em>Additional comments</em>

If the coefficient of a one-term expression is negative, there will be a leading minus sign. There won't be another term on the other side of that sign.

The given expressions appear to suffer from poor editing. Ordinarily, exponents are rendered using a superscript font, as the 3 is in the first expression. However, the second term of that expression is 1x2, which we understand to be 1x². If the 2 were intended as a multiplier, rather than an exponent, we would expect it to be combined with the coefficient 1 in that term to give (xy)³ -2x.

It is this assumption that leads us to write 45x3y as 45x³y. If that is not the intention of the given expression, it could be simplified to 135xy.

Ordinarily, if an exponent is not rendered in superscript font, we expect it to be identified by the caret (^) operator, as in 45x^3y.

5 0
1 year ago
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