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3 years ago

Solve the inequality. Graph the solution. −9y ≤ 36

Mathematics

1 answer:

Sholpan [36]3 years ago

6 0

Step-by-step explanation:

Divide by -9 to eliminate the -9 on -9y but remember if you divide or multiply by a negative you will need to switch/turn-around the sign

y≥-4

Answer: y≥-4

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1. Cooking oil is sold in two sizes of cans.

iren2701 [21]

Answer:

Small can

Step-by-step explanation:

Price per liter for Small can = 2.20 /4 = 0.55

Price per liter for Large can = 3.24 / 6 = 0.54

0.55>0.54

small can > large can

I hope im right!!!

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3 years ago

Help me please giving more than 5 points!

Scilla [17]

To find the median you need to lay out all the answers by lowest to highest. Then, you’ll need to find the number that’s in the middle and that’s the median. However, if there’s 2 middle numbers you’ll need to add them then divide it by 2 and that’s the median.

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2 years ago

Read 2 more answers

If one mile equals 5,280 feet, how many feet are in 7 miles?

Anuta_ua [19.1K]

Answer:

36,960

Step-by-step explanation:

multiply 5280 by 7

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2 years ago

The computers of six faculty members in a certain department are to be replaced. Two of the faculty members have selected laptop

Anettt [7]

Answer:

a. $\frac{1}{15}$

b. $\frac{2}{5}$

c. $\frac{14}{15}$

d. $\frac{8}{15}$

Step-by-step explanation:

Given that there are two laptop machines and four desktop machines.

On a day, 2 computers to be set up.

To find:

a. probability that both selected setups are for laptop computers?

b. probability that both selected setups are desktop machines?

c. probability that at least one selected setup is for a desktop computer?

d. probability that at least one computer of each type is chosen for setup?

Solution:

Formula for probability of an event E can be observed as:

$P(E) = \dfrac{\text{Number of favorable cases}}{\text {Total number of cases}}$

a. Favorable cases for Both the laptops to be selected = $_2C_2$ = 1

Total number of cases = 15

Required probability is $\frac{1}{15}$ .

b. Favorable cases for both the desktop machines selected = $_4C_2=6$

Total number of cases = 15

Required probability is $\frac{6}{15} = \frac{2}{5}$ .

c. At least one desktop:

Two cases:

1. 1 desktop and 1 laptop:

Favorable cases = $_2C_1\times _4C_1 = 8$

2. Both desktop:

Favorable cases = $_4C_2=6$

Total number of favorable cases = 8 + 6 = 14

Required probability is $\frac{14}{15}$ .

d. 1 desktop and 1 laptop:

Favorable cases = $_2C_1\times _4C_1 = 8$

Total number of cases = 15

Required probability is $\frac{8}{15}$ .

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3 years ago

Given a cube with a volume of 27cm3, what is the volume of a square pyramid?

VashaNatasha [74]

First from the information we have, we see that the volume of the cube is 27cm3. So what are the dimensions of its length, width and height? This information will help us to determine the dimensions of the square pyramid.

Volume of a cube is found from the formula V = a3

Where V is volume, and a is the length of one side.

We expand this equation to be:

V= a * a * a

Since all sides of a cube are equal, then this equation will be:

27 = 3 * 3 * 3

Now we know the length width and height of the cube.

Volume of a square pyramid is given by the formula V =1/3ah

Where V is the volume, a is the area of the base of the pyramid, h is the height of the pyramid.

Since it fits perfectly into the cube, then its dimensions are the same as the cube, so:

Area of the base is Length * Width so:

a = 3 * 3 = 9

and height:

h = 3

Now therefore:

V = 1/3 * 9 * 3

V = 1/3 * 27

V = 27/3

V = 9 cm3

Read more on Brainly.com - brainly.com/question/11049932

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3 years ago