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GalinKa [24]
3 years ago
8

Help on #2 a,b,and c

Mathematics
1 answer:
Sati [7]3 years ago
4 0
A) 12 h (3600 s/h) (100 J/s) = 4,320,000 J = 4.32 x 10 6 J
B) 4.32 x 10 6 J x .2 = 864,000 J light
C) 4.32 x 10 6 J (1kWh/3.6 x 10 6 J) = 1.2 kWh
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The price of a burger went from $6.00 to $8.00. What is the percent of change? This is increase and decrease
Lubov Fominskaja [6]
The cost of the burger went up 2%/ and you can also subtract 6 from8 and get the answer. Thank you have a nice day
7 0
3 years ago
Kelly had some rope in her closet. She cut the rope into 7 equal pieces. Each piece was ft long.
rewona [7]

the correct answer is c 7 feet i hope this helps you out 
3 0
3 years ago
Read 2 more answers
What is the solution set for this inequality?
Natali5045456 [20]

Answer:

x < 56

Step-by-step explanation:

- x + 40 > -16

-x + 40 - 40 > -16 -40

-x > -56

-x / -1 > -56 / -1

x < 56

4 0
3 years ago
A rectangle has a height of 5 and a width of 4x^2 – 2x – 6.
bogdanovich [222]

The area of the rectangle is 20x^{2} -10x-30 units.

Step-by-step explanation:

Step 1:

The area of a rectangle is obtained by multiplying the length with the width of the rectangle.

Considering this a whole rectangle, the length of the rectangle is 5 units and the width is the sum of 4x^{2}, -2x, and -6.

So the length of the rectangle = 5 units and

the width of the rectangle = 4x^{2} -2x-6 units.

The area of a rectangle = (length)(width).

Step 2:

By substituting the known values, we get

The area of the rectangle = (5) (4x^{2} -2x-6) = 20x^{2} -10x-30.

So the area of the rectangle is 20x^{2} -10x-30 units.

3 0
3 years ago
-24 + 2(w-9)<br> Show and explain work <br> (Distributive property)
Colt1911 [192]

Answer:

2w-42

Step-by-step explanation:

-24+2(w-9)

We need to distribute the 2 to the w-9 in the parentheses as per PEMDAS (Parentheses, Exponents, Multiplication, Division, Addition, Subtraction)

-24+2w - 18

Subtract -24 -18

2w - 42

4 0
3 years ago
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