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aivan3 [116]
4 years ago
7

Which rule can be used?

Mathematics
1 answer:
Svetradugi [14.3K]4 years ago
3 0
Thes first rule is correct. 

Another way of doing it is:

Sum the digits of the number. If the result is divisible into nine, then the original number itself will also be.

Example:

18 = 1+8 = 9. 9 is divisible into 9.

27 = 2+7 = 9. 9 is divisible into 9.

Wish you luck!
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Regla de correspondencia de f(x)=5x+4<br>​
nika2105 [10]

Answer:

Step-by-step explanation:

Regla why f = 5x +4. Question

3 0
3 years ago
A candy factory makes 30 pieces of candy each day. How many pieces of candy will the factory make in 60 days?
Usimov [2.4K]

Answer:

1,800

Step-by-step explanation:

30 times 60 is what ? 1,800

3 0
3 years ago
How to find surface area of a right triangular prism to the nearest whole number?
vovangra [49]
The area of the two triangular bases is
  (total base area) = 2×(1/2)bh
    = bh
    = (10 m)(6 m) = 10·6 m² = 60 m²

The area of the three rectangles making up the remaining faces of the prism is
  (total lateral area) = length×base + length×height + length×hypotenuse
    = length×(base + height + hypotenuse)
    = (16 m)(10 m + 6 m + 11.6 m)
    = (16 m)(27.6 m) = 16·27.6 m² = 441.6 m²

Then the surface area of the prism is the sum of these
  surface area = total base area + total lateral area
    = 60 m² + 441.6² = 501.6 m²
When rounded to the nearest whole number, this is
  A) 502 m²
5 0
3 years ago
Find the value of x.<br>please i need the answer today.<br>Thank you.​
satela [25.4K]

Answer:

x = 61.92751306

Step-by-step explanation:

Since this is a right triangle, we can use trig functions

tan theta =  opposite / adjacent

tan x = 15/8

Take the inverse tan on each side

tan ^ -1 (tan x) = tan ^ -1 (15/8)

x = 61.92751306

7 0
3 years ago
Read 2 more answers
Use each digits 2,3,7,8 to make numbers FROM 20,21,22 SO ON ALL THE WAY TO 50 FOR EXAMPLE 2+3+7+8=20
Ahat [919]
2+3+7+8=20 

2 x 3+7+ 8= 21


2 x 7 + 3+ 8= 25

8 x 2 + 7 + 3= 26

3 x 7 +8 - 2= 27

8 x 3 + 7 - 2= 29

8 x 7 ÷ 2 + 3= 31

7 x 2 x 3 -8 = 34
 

There is a couple, but i am not doing all of them
 I hope this helps anyway :).



5 0
4 years ago
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