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3 years ago

Write the equation of a line in slope-intercept form with a slope of 2 and

Mathematics

1 answer:

galina1969 [7]3 years ago

8 0

Answer:

y = 2x + 1

Step-by-step explanation:

Hope this helps!

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Seven people are in an elevator which stops at ten floors. In how many ways can they get off the elevator?

zlopas [31]

The number of ways people can get off the elevator is 604800 ways.

In this question,

Number of people, n = 7

Number of floors, r = 10

The first person can leave elevator in one of 10 ways. Then second person has to choose from one of remaining 9 floors. Then third person in 8, fourth in 7 ways and so on.

Number of ways people can get off the elevator can be calculated as

⇒ $nP_r=\frac{n!}{(n-r)!}$

⇒ $10P_{7}=\frac{10!}{(10-7)!}$

⇒ $10P_{7}=\frac{10!}{(3)!}$

⇒ $10P_{7}=\frac{(10)(9)(8)(7)(6)(5)(4)3!}{(3)!}$

⇒ $10P_{7}=(10)(9)(8)(7)(6)(5)(4)$

⇒ 604800 ways.

Hence we can conclude that the number of ways people can get off the elevator is 604800 ways.

Learn more about number of ways here

brainly.com/question/27992615

#SPJ4

4 0

1 year ago

If a barber is capable of cutting the hair of 35 people per day and he works 7 days per week, how many haircuts could he give du

Pavel [41]

June=1,225
April=1,225
May=1,225

All June April and May is 3,675 haircuts

6 0

3 years ago

What is the surface area of a sphere with a diameter of 12 centimeters? (Use 3.14 for π .) 1,808.64 cm 2 452.16 cm 2 150.72 cm 2

svetoff [14.1K]

Sphere Surface Area = PI * diameter²
Sphere Surface Area = 3.14 * 12*12
Sphere Surface Area = 452.16 square centimeters

3 0

3 years ago

Read 2 more answers

I need the answers for 1 a-d pleas

DaniilM [7]

We want to find a fraction that is between

$\frac{1}{4}\:and\:\frac{1}{2}$

There are several ways to go about this.

There are also infinitely many fractions that can be found between the given fractions.

Let us go for the one in the middle of the two fractions.

So we add the two fractions and divide by 2.

a) $\frac{\frac{1}{4} +\frac{1}{2} }{2}$

Find LCM for the numerator

$\frac{\frac{1+2}{4}}{2}$

Simplify:

$\frac{\frac{3}{4}}{2}$

$\frac{\frac{3}{2}}{2}$

$\frac{3}{8}}$

b) $\frac{\frac{1}{3} +\frac{3}{4} }{2}=\frac{13}{24}$

c) $\frac{\frac{1}{2} +\frac{3}{4} }{2}=\frac{5}{8}$

d) $\frac{\frac{3}{5} +\frac{7}{8} }{2}=\frac{59}{80}$

4 0

3 years ago

Slove the equation of 6n-12=n+3

Makovka662 [10]

¤ 6n-12=n+3
¤ 6n-n=12+3
¤ 5n=15
¤ n=15÷5
¤ n=3

8 0

3 years ago