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loris [4]
3 years ago
5

Help me please!!!!!!!!!!

Mathematics
1 answer:
kobusy [5.1K]3 years ago
5 0
What’s your question please??
You might be interested in
one pipe fills a store pool in 12 hours. A second pipe fills the same pool in 6 hours. When a third pipe is added and all three
Alina [70]

Answer:

x  = 12  hours

Step-by-step explanation:

If one pipe fills store pool in 12 hours   in 1 hour will fill 1/12 of the pool

If one pipe fills a store pool in 6 hours in 1 hour will fill 1/6 of the pool

Let call " x " number of hours needed by the third pipe to fills the pool

then in 1 hour  will fill 1/x

The three pipes working together in 1 hour will fill

1/12  +  1/6  + 1/x

Now we know that the three pipes take 3 hours to fill the pool then in 1 hour three pipes will fill 1/3 of the pool, therefore

1/12  +  1/6  + 1/x  = 1/3

( x + 2*x + 12) /12*x  = 1/3   ⇒ ( 3*x +12 )/ 12*x = 1/3

9*x  + 36  = 12*x

- 3*x  = - 36

x  = 36/3

x  = 12  hours

5 0
3 years ago
Helpppppp ill give brainliest answer if you know
aksik [14]

Answer:

522.67

Step-by-step explanation:

Base area= 196

Height= 8

put it into the formula

V= 1/3*196*8

196*8= 1,568

1,568*1/3= 522.67

hope this helps <3

7 0
3 years ago
Find an nth degree polynomial function with real coefficients satisfying the given conditions.
damaskus [11]

Step-by-step explanation:

Our roots are 3, and i so our roots form

will be

(x - 3)(x - i)

Since i is one root, it conjugate, must be the other.

so we have

(x - 3)(x - i)(x + i)

Simplify

( {x}^{2}  + 1)(x - 3)

{x}^{3}  - 3 {x}^{2}  + x - 3

So the function is

x {}^{3}  - 3 {x}^{2}  + x - 3

7 0
3 years ago
How do you do this? It's so confusing! Please help!
Dima020 [189]
Check the picture below.

notice AB ⟂ BC , whilst ∡B = 30°.

now, if we run a perpendicular line from C to AB, it'll be a 90° angle at M, however ∡AMC has to be 105°, so it has to be slanted more towards A, like in the picture, and surely you already know which one is the shortest.

6 0
4 years ago
The sum of two numbers is 38. The larger number is 22 more than the smaller number. What are the numbers?
VMariaS [17]

Answer:

Larger number = 30
Smaller number = 8

Step-by-step explanation:

Let x = larger number

Let y = smaller number

x + y = 38 ————> (1)

x = y + 22 ————> (2)

Substitute for x using first equation

(y + 22) + y = 38

2y + 22 = 38

2y = 16

y = 8

Substitute for y using second equation

x = 8 + 22

x = 30


I hope this helped and please mark me as brainliest!

7 0
3 years ago
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