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Misha Larkins [42]
4 years ago
6

The instruction booklet for a DVD player says that the player uses about 0.4 kilowatt of electricity per hour. If electricity co

sts $0.20 per kilowatt hour,how much does it cost to run the player for an hour?
Mathematics
2 answers:
lianna [129]4 years ago
6 0
The answer would be $0.08 to run it for an hour.
qaws [65]4 years ago
3 0
That is correct it would 0.08 dollards
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What is the equation, in slope-intercept form, of the line that is perpendicular to the line
NeTakaya

Answer:

y = -x - 4

Step-by-step explanation:

First find the slope

y - 4 = (x - 6)

y - 4 = x - 6

y = x - 6 + 4

y = x - 2 (y = mx + C)

Slope m = 1

It is said that the line is perpendicular to a point ( -2, -2)

If two lines are perpendicular, their slope will be negative reciprocal

The negative reciprocal of slope = 1 is -1

Using a slope intercept form as requested by the question

y = mx + C

Inserting the values given

(-2, -2)

We are using point slope form

y - y_1 = m ( x - x_1)

x_1 = -2

y_1 = -2

m = -1

Insert the values

y - ( -2)) = -1( x - (-2))

y + 2 = -1 ( x + 2)---- point slope form

But we are requested to give the answer in slope intercept form

y = mx + C

We have to open the bracket

y + 2 = -1(x + 2)

y + 2 = -x - 2

y = -x - 2 - 2

y = -x - 4 ( slope - intercept form)

4 0
4 years ago
Round 147.667 & 142.5 to the nearest cent.
Travka [436]

Answer:

147.67 and 142.50

Step-by-step explanation:

Cents are only two digits after the decimal, aka hundredths. So, you have to round each number to the hundredth.

6 0
3 years ago
Read 2 more answers
Can help with this please​
madam [21]

Answer:

m∠8 = 4x

Step-by-step explanation:

Angle 8 is the same angle measure of angle 1, which is m∠1 = 4x

7 0
4 years ago
A garden contains two square peanut beds. Find the length of each bed if the sum of the areas is 914ft squared and the differenc
garik1379 [7]

Answer:

The answer to your question is:

m = length of the smaller bed = 17 ft

l = length of the larger bed = 25 ft

Step-by-step explanation:

Data

A1 + A2 = 914

A1 - A2 = 336

A1 = l²

A2 = m²

Process

l² + m² = 914

l² - m² = 336

l² = 336 + m²

(336 + m²) + m² = 914

336 + 2m² = 914

2m² = 914 - 336

2m² = 578

m² = 578 / 2

m² = 289

m = 17 ft

l² = 336 + 289

l² = 625

l = 25 ft

6 0
3 years ago
3/6 + 1/3 is equivalent to​
NeX [460]
The answer is definitely 1
3 0
3 years ago
Read 2 more answers
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