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Anarel [89]
3 years ago
13

Please help me............................

Mathematics
1 answer:
Umnica [9.8K]3 years ago
7 0

Answer:

B.

Step-by-step explanation:

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Plz help gotta finish before 11:59:((((
olasank [31]

Answer:

19/42

Step-by-step explanation:

multiply each fraction by the opposite denominator to get the same denominator for both 12+7=19 &6×7=42

8 0
3 years ago
A new LED light bulb uses 10 watts of power. Since energy = power × time , then the energy used for this light bulb can be found
sergiy2304 [10]

9514 1404 393

Answer:

  150 Wh

Step-by-step explanation:

We know the energy per bulb is 10 Wh per hour, so the total energy used by 3 bulbs in 5 hours is ...

  (10 Wh/(bulb·hour))×(3 bulbs)×(5 hours) = 10·3·5 Wh = 150 Wh

5 0
3 years ago
Given a function, describe how to find the average rate of change over a given interval.
icang [17]

Answer:

To find the average rate of change, we divide the change in the output value by the change in the input value. The Greek letter Δ (delta) signifies the change in a quantity; we read the ratio as “delta-y over delta-x” or “the change in y divided by the change in x”.

8 0
3 years ago
Read 2 more answers
A 5 kW solor energy system can collect 9000 kWh of energy per year. In Arizona, electricity cost eleven cents per kilowatt hour.
Licemer1 [7]

Answer:

19338 kWh

Step-by-step explanation:

In Arizona, electricity cost eleven cents per kilowatt-hour.

The average home uses 66 million BTU per year i.e. 66000000 BTU per year.

Now, it is given in the question that 1 BTU is equivalent to 0.000293 kWh.

So, the average home uses (66000000 × 0.000293) = 19338 kWh per year.

Therefore, the number of kilowatt-hours used per year will be 19338. (Answer)

6 0
3 years ago
What is 4n + 3 ( n – 5 ) + 2 simplified? I suck At math sry
Tema [17]

Answer:

7n−13

Step-by-step explanation:

4n+3(n−5)+2

4n+3n+3 \times (−5+2)

4n+3n−15+2

7n−15+27n-15+2

7n−13

<h3>Hope it is helpful....</h3>
4 0
3 years ago
Read 2 more answers
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