All categories

4 years ago

U = {r,s,t,u,v,w,x,y,z}

Mathematics

1 answer:

Mandarinka [93]4 years ago

7 0

Answer:

{r,z}

Step-by-step explanation:

U = {r,s,t,u,v,w,x,y,z}

P = {s,t,u,v,w}

Q = {u,v,x,y}

P' means elements in the universe,U, that are not in P.

P'={r,x,y,z}.

Q' means elements in the universe,U, that are not in Q.

Q'={r,s,t,w,z}.

P' intersect Q' means what elements are in common in both lists.

{r,z}

You might be interested in

How many 2- tablespoons doses are in 4 bottles of medications containing 16 oz each

balandron [24]

Do you really need an answer 1 hour later<span />

8 0

4 years ago

Solve each system help please!!!!!

nexus9112 [7]

$12)\\\left\{\begin{array}{ccc}y=-2x+3&(*)\\2x+5y=7\end{array}\right\qquad\text{put}\ (*)\ \text{to the second equation}\\\\2x+5(-2x+3)=7\qquad\text{use distributive property}\\2x+(5)(-2x)+(5)(3)=7\\2x-10x+15=7\qquad\text{subtract 15 from both sides}\\-8x=-8\qquad\text{divide both sides by (-8)}\\\boxed{x=1}\\\\\text{Put the value of x to}\ (*)\\\\y=-2(1)+3\\y=-2+3\\\boxed{y=1}\\\\Answer:\ x=1,\ y=1\to(1,\ 1)$

$14)\\\left\{\begin{array}{ccc}x=y-4&(*)\\x-2y=-6\end{array}\right\qquad\text{put}\ (*)\ \text{tu the second equation}\\\\(y-4)-2y=-6\\y-4-2y=-6\qquad\text{add 4 to both sides}\\-y=-2\qquad\text{change the signs}\\\boxed{y=2}\\\\\text{Put the value of y to}\ (*)\\\\x=2-4\\\boxed{x=-2}\\\\Answer:\ x=-2,\ y=2\to(-2,\ 2)$

$16)\\\left\{\begin{array}{ccc}x=-4y+3&(*)\\5x-3y=-31\end{array}\right\qquad\text{put}\ (*)\ \text{to the second equation}\\\\5(-4y+3)-3y=-31\qquad\text{use distributive property}\\(5)(-4y)+(5)(3)-3y=-31\\-20y+15-3y=-31\qquad\text{subtract 15 from both sides}\\-23y=-46\qquad\text{divide both sides by (-23)}\\\boxed{y=2}\\\\\text{Put the value of y to }\ (*)\\\\x=-4(2)+3\\x=-8+3\\\boxed{x=-5}\\\\Answer:\ x=-5,\ y=2\to(-5,\ 2)$

3 0

3 years ago

Read 2 more answers

Find the solutions to the equation below.

Volgvan

Answer:

A and C

Step-by-step explanation:

Move all terms to the left side and set equal to zero. Then set each factor equal to zero

4 0

3 years ago

Cells are made up of?

Marianna [84]

Answer:

organaelles can i have brainlyest?

ik i didnt spell right

Step-by-step explanation:

6 0

3 years ago

The master family financed a computer that cost $1200. If the interest rate is 19%.how much will the family owe for the computer

Fantom [35]

The answer is $1219

Interest = Total amount * interest rate * time ( I=prt is the formula for calculating interest)

In this case,

Total amount = $1200

Interest rate= $ 0.19

Time span for which interest rate is being calculated= 1/12 (since the rate is yearly and we are calculating interest for a month)

Interest = 1200*0.19*1/12 = 19

So the total amount owned by family at the end of one month = original amount + interest = $1200 + $19 = $1219

6 0

3 years ago