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Ilia_Sergeevich [38]

3 years ago

10

Given the two sets: A = {1, 2, 3} B = {3, 2, 1}

1 answer:

Aloiza [94]3 years ago

7 0

Answer:

Step-by-step explanation:

Given : A = { 1,2,3} B = { a,b,c} The Cartesian product of sets A and B is the set of all possible. hope that helps.

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There were 3232 volunteers to donate blood. Unfortunately, nn of the volunteers did not meet the health requirements, so they co

Degger [83]

Answer:

$\frac{470}{32-n}$

Step-by-step explanation:

We have been given that there were 32 volunteers to donate blood. Unfortunately, n of the volunteers did not meet the health requirements, so they couldn't donate.

So the number of volunteers that donated blood will be 32-n.

We are also told that the rest of the volunteers donated 470 milliliters each.

To find the units of blood donated by each of the volunteers we will divide total units of donated blood by number of volunteers, who donated the blood (32-n).

$\text{Millimeters of blood donated by each volunteer}=\frac{470}{32-n}$

Therefore, each of the volunteers donated $\frac{470}{32-n}$ millimeters of blood.

5 0

3 years ago

Read 2 more answers

Find the sum<br> −1/2(7z+4)+15(5z−15)

sattari [20]

Answer: $\frac{143x - 453}{2}$

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Which is simplified fraction is equal to 0.53

Artemon [7]

For this case, we must indicate the fraction that is equivalent to 0.53.

It is observed that the decimal is rolled twice to the left, that tells us to divide by 100.

Thus, dividing the whole number "53" among 100 we have:

$\frac {53} {100} = 0.53$

Answer:

$\frac {53} {100}$

6 0

4 years ago

Length of a rectangle is 5 cm longer than the width. Four squares are constructed outside the rectangle such that each of the sq

azamat

Answer:

The perimeter of rectangle is $18\ cm$

Step-by-step explanation:

Let

x-----> the length of the rectangle

y----> the width of the rectangle

we know that

$x=y+5$ ----> equation A

$120=xy+2x^{2}+2y^{2}$ ---> equation B (area of the constructed figure)

substitute the equation A in equation B

$120=(y+5)y+2(y+5)^{2}+2y^{2}$

$120=(y+5)y+2(y+5)^{2}+2y^{2}\\ 120=y^{2}+5y+2(y^{2}+10y+25)+2y^{2}\\ 120=y^{2}+5y+2y^{2}+20y+50+2y^{2}\\120=5y^{2}+25y+50\\5y^{2}+25y-70=0$

using a graphing calculator -----> solve the quadratic equation

The solution is

$y=2\ cm$

Find the value of x

$x=y+5 ----> x=2+5=7\ cm$

Find the perimeter of rectangle

$P=2(x+y)=2(7+2)=18\ cm$

8 0

3 years ago

. Round off the numbers to the nearest ten.<br>28 , 188 , 250 , 101 , 122 ?

DochEvi [55]

Rounding to the nearest ten:

28 → 30

188 → 190

250 → 250

101 → 100

122 → 120

3 0

3 years ago