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2 years ago

Questions of 40 3. Which of the following is equal to 2 ? 7 A 7

Mathematics

1 answer:

antiseptic1488 [7]2 years ago

8 0

Answer:

Step-by-step explanation:

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There are 9 different colors of paint to choose from. Out of the 9 colors, how many ways can 4 different colors be chosen?

gregori [183]

This is the concept of combination, the number of ways 4 different color can be chosen from 9 different colors will be:
9C4
=(9!)/(4!(9-4)!)
=362,880/(24×120)
=362,880/2880
=126
thus the number of ways is 126 ways

4 0

2 years ago

Read 2 more answers

PLEASE HELP

densk [106]

For this case we have that by definition, a function is of the form:

$y = f (x)$

So, we have the following system of equations:

$y = -6x + 2\\y = -2x + 4$

Equating the equations we have:

$-6x + 2 = -2x + 4$

Adding 2x to both sides of the equation:

$-6x + 2x + 2 = 4\\-4x + 2 = 4$

Subtracting 2 from both sides of the equation:

$-4x = 4-2\\-4x = 2$

Dividing between -4 on both sides of the equation:

$x = \frac {2} {- 4}\\x = - \frac {1} {2}$

Thus, the value of the variable "x" is -0.5.

Answer:

-0.5

6 0

3 years ago

the perimeter of a square piece of confetti is 28 mm. how long is each side of the piece of confetti?

ASHA 777 [7]

Answer:

7 mm

Step-by-step explanation:

A square has 4 equal sides, so the piece of confetti will have 4 sides of the exact same length.

Find the length of each side by dividing the perimeter by 4

28/4

= 7

So, each side of the confetti piece is 7 mm

8 0

2 years ago

Read 2 more answers

3.2 as a fraction or mixed number in simplest form.

xxTIMURxx [149]

Answer:

3 1/5 is 3.2 as a mixed number

7 0

2 years ago

Read 2 more answers

How many days will it take for a sum of $4,000 to earn $80 interest if it is deposited in a bank paying ordinary simple interest

Maksim231197 [3]

Answer:

It will take 146 days to earn an interest of $80.

Step-by-step explanation:

The simple interest formula is:

$I=\frac{P\times r\times t}{100}$

It is provided that:

I = $80

P = $4,000

r = 5% p.a.

Compute the time required as follows:

$I=\frac{P\times r\times t}{100}$

$t=\frac{I\times 100}{P\times r}$

$=\frac{80\times 100}{4000\times 5}\\\\=0.4\ \years\\\\=0.4\times 365\ days\\\\=146\ days$

Thus, it will take 146 days to earn an interest of $80.

4 0

2 years ago