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777dan777 [17]
3 years ago
10

What number is missing in this sequence? 1, 2, 4, 7, 11, ___, 22

Mathematics
1 answer:
Zina [86]3 years ago
4 0

Answer:

16

Step-by-step explanation:

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Please help me<br><br> What is 8/1 ​ ÷ 4/3
creativ13 [48]

Answer:

6

Step-by-step explanation:

To check my work I used desmos

5 0
3 years ago
a rectangular box with two sqaure opposite ends is to hold 8000 cubic inches. find the dimensions of the cheapest box if tge rec
AveGali [126]

Answer:

the dimensions of the box that minimizes the cost are 5 in x 40 in x 40 in

Step-by-step explanation:

since the box has a volume V

V= x*y*z = b=8000 in³

since y=z (square face)

V= x*y² = b=8000 in³

and the cost function is

cost = cost of the square faces *  area of square faces + cost of top and bottom * top and bottom areas + cost of the rectangular sides * area of the rectangular sides

C = a* 2*y² +  a* 2*x*y + 15*a* 2*x*y =  2*a* y² +  32*a*x*y

to find the optimum we can use Lagrange multipliers , then we have 3  simultaneous equations:

x*y*z = b

Cx - λ*Vx = 0 → 32*a*y -  λ*y² = 0 → y*( 32*a-λ*y) = 0 → y=32*a/λ

Cy - λ*Vy = 0  → (4*a*y + 32*a*x) - λ*2*x*y = 0

4*a*32/λ  + 32*a*x - λ*2*x*32*a/λ = 0

128*a² /λ +  32*a*x - 64*a*x = 0

32*a*x = 128*a² /λ

x  = 4*a/λ

x*y² = b

4*a/λ * (32*a/λ)² = b

(a/λ)³ *4096 =  8000 m³

(a/λ) = ∛ ( 8000 m³/4096 ) = 5/4 in

then

x  = 4*a/λ = 4*5/4 in = 5 in

y=32*a/λ = 32*5/4 in = 40 in

then the box has dimensions 5 in x 40 in x 40 in

3 0
3 years ago
3rd out of 10 questions<br> For a cooking class, Tom earns 4 points for each meal that he cooks.
Pani-rosa [81]
The ratio would be 1 meal : 4 points.
6 0
3 years ago
Read 2 more answers
PLEASE HELP PLEASE
Roman55 [17]

Answer:

8

Step-by-step explanation:

We have, 25% × x = 200

or,

25

100

× x = 200

Multiplying both sides by 100 and dividing both sides by 25,

we have x = 200 ×

100

25

x = 800

If you are using a calculator, simply enter 200×100÷25, which will give you the answer.

So now that you have the original number you just need to find 1% of 800

1% of 800 is 8

3 0
3 years ago
The table displays the distribution of blood types A, B, AB, and O to the presence of the Rh factor that is either present (Pos.
tino4ka555 [31]

Answer:

The probability that a person has a positive Rh factor given that he/she has type O blood is 82

There is a greater probability for a person to have a positive Rh factor given type A blood

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
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