All categories

3 years ago

Write the expression nine divided by the quantity of x plus y

Mathematics

1 answer:

seropon [69]3 years ago

7 0

9514 1404 393

Answer:

$\text{A)}\quad\dfrac{9}{x+y}$

Step-by-step explanation:

In the English expression, you need to understand that "A divided by B" means that A is the numerator and B is the denominator of the fraction representing the division. Here, "B" is "the quantity of ...", which means that the stuff after "of ..." is to be treated as a single item, the denominator in this case. That item is "x plus y." So, the expression in math terms is ...

$\dfrac{9}{x+y}$

When this is written in plain text, the "quantity" is put in parentheses, because the fraction bar no longer serves as a grouping symbol:

9/(x+y)

These expressions match the first choice, A.

You might be interested in

Which of the following statements best summarizes the SSS Similarity Postulate?

Anarel [89]

C. SSS is when all three sides are congruent

7 0

3 years ago

Which expression represents the volume of this solid ?

baherus [9]

Answer:

The answer is option 5.

Step-by-step explanation:

The formula is V = 1/3×π×r²×h where r represnt radius and h is height. Given that the diameter of cone is 8 inches so the radius is 4 inches then substitute the value into the formula :

$v = \frac{1}{3} \times \pi \times {r}^{2} \times h$

Let r = 4,

Let h = 12,

$v = \frac{1}{3} \times \pi \times {4}^{2} \times 12$

$v = \frac{( {4}^{2}\pi)12 }{3}$

5 0

3 years ago

A baseball coach needs to choose 99 players to be in the batting lineup for the next game. There are 44 freshmen, 44 sophomores,

Bas_tet [7]

Answer:

The number of ways the batting line up can be made is 3,851,971,200 ways.

Step-by-step explanation:

The coach of the baseball team needs to choose 9 players for the batting lineup.

He can choose from a total of 4 freshmen, 4 sophomores, 5 juniors and 4 seniors for the team.

He has to choose the team so that there at most 2 juniors on the lineup.

The total number of available player who are not juniors is 4 + 4 + 4 = 12

i) If the coach selects no juniors then there are 9 positions to fill up and

since the batting order is not specific so these 9 players can be selected

from 12 players = $\binom{12}{9}$ = 220 ways

ii) If the coach selects one junior then there are other 8 other positions to

fill up from 12 players and one junior is to be selected from 5 juniors

= $\binom{12}{8} \times \binom{5}{1} = 2475$

iii) If the coach selects two juniors then there are other 7 other positions to

fill up from 12 players and two juniors are to be selected from 5 juniors

= $\binom{12}{7} \times \binom{5}{2} = 7920$

So the ways of selecting the players is = 220 + 2475 + 7920 = 10615 ways

Since there is no specific order to the batting line up the number of ways the batting line up can be made = 9! × 10615 = 3,851,971,200 ways.

8 0

3 years ago

Katrina and Amanda are studying the same class. On Monday, Katrina solved 35 math problems and Amanda solved 21 math problems. O

Tatiana [17]

Answer:

Step-by-step explanation:

Saturday

3 0

3 years ago

Read 2 more answers

Find the vertex and the axis of symmetry of the graph of f(x)=3(x+1)^2

lidiya [134]

General form of vertex of a parabola is

y = a(x - b)^2 + c where vertex = (b , c)

for this equation the vertex is at (-1,0).

the axis of symmetry is x = -1

5 0

3 years ago