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3 years ago

10

20 POINTS

\frac{3x-6}{3} =\frac{7x-3}{6}" alt="\frac{3x-6}{3} =\frac{7x-3}{6}" align="absmiddle" class="latex-formula">
A.-11
B.-9
C.-3
D.3

1 answer:

Vedmedyk [2.9K]3 years ago

6 0

A. That is the anwser

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Which of the following are inverses of each other?

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So, how do we check to see if two functions are inverses of each other? Well, we learned before that we can look at the graphs.

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Remember, if the two graphs are symmetric with respect to the line y = x (mirror images over y = x ), then they are inverse functions.

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Susie has planned a trip to a city 60 miles away. She wishes to have an average speed of 60 miles/hour for the trip. Due to a tr

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90 mi/h

Step-by-step explanation:

Given,

For first 30 miles, her speed is 30 miles per hour,

Let x be her speed in miles per hour for another 30 miles,

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4 years ago

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3 years ago

Mr. Ishimoto needs to replace the grass in the section of his lawn that is shown below.

tatiyna

Answer:

The replacing the grass will cost Mr. Ishimoto $14.00.

Step-by-step explanation:

The area of a rectangular field is:

$\text{Area}=\text{height}\times \text{base}$

It is provided that Mr. Ishimoto needs to replace the grass in the section of his lawn.

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Second rectangle: Base = 2 feet and Height = 7 feet.

Compute the area of both the rectangles as follows:

$\text{Area}_{1}=\text{height}_{1}\times \text{base}_{1}\\=3\times 7\\=21$ $\text{Area}_{2}=\text{height}_{2}\times \text{base}_{2}\\=7\times 2\\=14$

Now the cost of the new grass is $0.40 per square foot.

Compute the cost of replacing the grass in the first rectangular section as follows:

$\text{Cost of new grass for section 1}=\text{Area}_{1} \times\$0.40\\$

$=21\times \$0.40\\=\$8.40$

Compute the cost of replacing the grass in the second rectangular section as follows:

$\text{Cost of new grass for section 2}=\text{Area}_{2} \times\$0.40\\$

$=14\times \$0.40\\=\$5.60$

The total cost of replacing the grass is:

$\text{Total cost}=\text{Cost of new grass for section 1}+\text{Cost of new grass for section 2}$

$=\$8.40+\$5.60\\=\$14.00$

Thus, the replacing the grass will cost Mr. Ishimoto $14.00.

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3 years ago

Read 2 more answers

Factor 8x3 − 343.

Sunny_sXe [5.5K]

Answer:

A) (2x − 7) (4x² + 14x + 49)

C) (3x + 5) (9x² − 15x + 25)

Step-by-step explanation:

Sums and differences of cubes factor as:

a³ + b³ = (a + b) (a² − ab + b²)

a³ − b³ = (a − b) (a² + ab + b²)

8x³ − 343 is a difference of cubes.

(2x)³ − 7³

(2x − 7) (4x² + 14x + 49)

27x³ + 125 is a sum of cubes.

(3x)³ + 5³

(3x + 5) (9x² − 15x + 25)

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3 years ago