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Sauron [17]
3 years ago
15

Simplify.

Mathematics
2 answers:
sp2606 [1]3 years ago
4 0
Answer: I think 40



Explain : I’m not sure
Brums [2.3K]3 years ago
3 0
My answer was 40 I hope it’s right
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Komok [63]

Answer:

The center of Walden’s data, 3, is less than the center of Drake’s data set, 6.

Step-by-step explanation:

3 0
3 years ago
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Someone help with this too pls
Vesnalui [34]

Answer:

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2 years ago
The lengths of the sides of a rectangle are 18cm by 3m. Express the area of the rectangle in square decametres.
lubasha [3.4K]

For this case we have that by definition, the area of a rectangle is given by:

A = b * h

Where:

b: It is the base of the rectangle

h: It is the height of the rectangle

By definition we have to:

1 meter equals 0.1 decameters

1 centimeter equals 0.001 decameters

According to the data of the statement we have:

b = 18 \ cm * \frac {0.001} {1} * \frac {decametres.} {cm} = 0.018 \ decameters.\\h = 3m * \frac {0.1} {1} * \frac {decameters} {m} = 0.3 \ decameters.

Thus, the area of the rectangle is:

A = 0.018 * 0.3 = 0.0054 \ decameters ^ 2

Answer:

0.0054 \ decameters ^ 2

6 0
4 years ago
X^2 + x - 6 over x^2 - 7x + 10 <br> simplify fully
Natali [406]
\frac{x^2+x-6}{x^2-7x+10}

When you factor a quadratic ax² + bx + c, it becomes (x+m)(x+n), where mn = ac, and m+n = b.

In x²+x-6, we want to find two numbers that multiply to -6 and add to 1.
3 and -2 satisfy both of these criteria, so there are our factors.

\frac{(x+3)(x-2)}{x^2-7x+10}

In x²-7x+10, we want to find two numbers that multiply to 10 and add to -7.
-5 and -2 satisfy both of these criteria, so there are our factors.

\frac{(x+3)(x-2)}{(x-5)(x-2)}

The (x-2) cancels and we're left with

\boxed{\frac{x+3}{x-5}}
5 0
4 years ago
A 120-watt light bulb uses about 0.1 kilowatt of electricity per hour. If electricity costs $0.20 per kilowatt hour, how much do
saveliy_v [14]
There is no such thing as a "kilowatt per hour". If that's actually what the question says, then it's a defective question, and you should put it away before it makes you any more confused. A 120 watt light bulb uses exactly 0.12 kilowatt when it's turned on. In one hour, it uses (0.12 kilowatt) x (1 hour) = 0.12 kilowatt-hour of energy. If energy costs $0.20 per kilowatt-hour, then the cost is (0.12) x (0.20) = 2.4 cents. (0.024 dollar)
8 0
3 years ago
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