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morpeh [17]
3 years ago
13

On a shelf there are 4 different english books, 5 different arabic books, 7 different japanese books. how many different ways ar

e there to pick 3 books that are not in the same language?
Mathematics
1 answer:
Karo-lina-s [1.5K]3 years ago
5 0
That would be 4*5*7 = 140 ways
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Determine which line is perpendicular to y = - 7/5x-2.​
tatuchka [14]

Answer:

y = 5/7 x  - 6

Step-by-step explanation:

For two lines to be perpendicular, the product of their slope must be -1

The slope of the given function is -7/5

Let the slope of the required function be m

m * -7/5 = -1

7/5 m = 1

7 = 5m

m = 5/7

The slope of the line perpendicular to the line is 5/7

The required equation (using any value of the y-intercept) is expressed as;

y = 5/7 x  - 6

Note that the y-intercept value was assumed and any value can be used

6 0
2 years ago
Fred works as a gardener. He charges at least $15 to drive to a residence and
Amanda [17]

We are required to find an inequality which best represents the relationship between the number of hours gardening g and the total charge c

The inequality which best represents the relationship between the number of hours gardening g and the total charge c is c ≥ 15 + 12g

At least means greater than or equal to (≥)

fixed charge = $15

charges per hour = $12

Total charge = c

Number of hours = g

The inequality:

<em>Total charge ≥ fixed charge + (charges per hour × Number of hours</em>

c ≥ 15 + (12 × g)

c ≥ 15 + (12g)

c ≥ 15 + 12g

Therefore, the inequality which best represents the relationship between the number of hours gardening g and the total charge c is c ≥ 15 + 12g

Read more:

brainly.com/question/11067755

7 0
2 years ago
Find the area of an equilateral triangle (regular 3-gon) with the given measurement.
Dmitriy789 [7]
Whats the given measurements

6 0
3 years ago
What is 2x^2-8x<br> factorised*
Otrada [13]

Answer:

2x(x - 4)

Step-by-step explanation:

2 {x}^{2}  - 8x \\  \\  = 2x(x - 4)

8 0
3 years ago
A man borrowed $8000. He paid $10100 after 9 months for the debt. What was the interest rate per annum?
Anastaziya [24]

Answer:

3.5%

Step-by-step explanation:

Interest = 10100 - 8000 or 2100

I = Prt

2100 = 8000(9/12)r

2100 = 600r

2100/600 = r

3.5 = r

4 0
2 years ago
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