2 years ago

Indices: What is 3^2 × 3^-1

Mathematics

1 answer:

Mashutka [201]2 years ago

5 0

Answer:

Hi, there the answer is 3

Step-by-step explanation:

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6. It took Todd 9 hours to paint 4 rooms.

Afina-wow [57]

Answer:

5 rooms

Step-by-step explanation:

4 rooms = 9 hours

9 hours = 540 minutes

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60 x 12 = 720 minutes (12 hours)

720 ÷ 135 = 5.33333

5.3333 estimated to nearest whole number = 5

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3 years ago

The variable z is directly proportional to x, and inversely proportional to y. When x is 4 and y is 13, z has the value 1.230769

Talja [164]

Answer:

Step-by-step explanation:

1.2307692307692.

The first step is to find the proportionality constant.

The formula is

z = kx/y

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1.2307692307692 * 13 = 4k

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k = 16/4

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z = k*x/y

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y = 20

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z = 4 *9/20

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z = 1.8

7 0

3 years ago

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A computer company is currently earning $400 in profit a week and predicts its profits will increase by 5% each week. A second c

Archy [21]

Answer:

b 6weeks

Step-by-step explanation:

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3 years ago

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Mademuasel [1]

145° because 180-35=145

6 0

3 years ago

Can someone help me with this

Dmitrij [34]

Answer:

$\frac{1}{18}$

Step-by-step explanation:

So say there are x yellow cubes.

Yellow = x

Blue = 3x

Green = 15x

It doesn't say red so I'm going to assume there are none.

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7 0

3 years ago

Indices: What is 3^2 × 3^-1​

Indices: What is 3^2 × 3^-1