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3 years ago

Simplify (4x– 4)– 3. A. –8x12 B. C. –64x9 D.

Mathematics

1 answer:

mojhsa [17]3 years ago

4 0

C. -64x9 because you have to times the number

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The sentence "Nine is more than a number" can be represented by the inequality 9 ≥ n . true or false

matrenka [14]

It's a bit of both, actually.

9 ≥ n actually states that the quantity 9 is either greater than or equal to the value of the variable n.

Depending on how exact you mean, it's true and false, because 9 ≥ n technically includes 9 is more than a number, but it also could be 9 is equal to a number.

I'd say the answer is probably true, but it's a bit confusing.

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3 years ago

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Louis wants to make a scale drawing of his bathroom. The room is 12 feet long by 8 feet wide. If he uses a scale of 1cm = 4ft, h

Natali [406]

Answer:

Step-by-step explanation:

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3 years ago

The perimeter of a rectangle must be less than 170170 feet. If the length is known to be 4444 feet, find the range of possible w

katrin [286]

Answer:

$w \in (0,41)$

where w is width of rectangle.

Step-by-step explanation:

We are given the following in the question:

The perimeter of a rectangle must be less than 170 feet.

Length of rectangle = 44 feet

Perimeter of rectangle =

$2\times (\text{Length + Width})$

Let w be the width of rectangle.

According to the question,

$P < 170\\2(44 + w)$

Thus, the width of triangle should be less than 41. Since w cannot take negative values, we can express value of w in interval notation as,

$w \in (0,41)$

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3 years ago

Leilani practiced piano for 3/5 of an hour. Sarah practiced piano for 7/8 of an hour.

ivolga24 [154]

Answer:

The number of hours did Sarah practice more than Leilani is $\dfrac{11}{40}$ hours .

Step-by-step explanation:

Given as :

The time for which Leilani practiced piano = $\dfrac{3}{5}$ hours

The time for which Sarah practiced piano = $\dfrac{7}{8}$ hours

Let the number of hours did Sarah practice more than Leilani = T hours

<u>Now, According to question</u>

The number of hours did Sarah practice more than Leilani = $\dfrac{7}{8}$ hours - $\dfrac{3}{5}$ hours

Or, T = $\dfrac{35-24}{40}$ hours

Or, T = $\dfrac{11}{40}$ hours

So,The number of hours did Sarah practice more than Leilani = T = $\dfrac{11}{40}$ hours

Hence, The number of hours did Sarah practice more than Leilani is $\dfrac{11}{40}$ hours . Answer

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3 years ago

Help me please, i just need an answer

Kruka [31]

Answer:

Step-by-step explanation:

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2 years ago