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marshall27 [118]
3 years ago
8

How do you get the numbers: 7,6,5, and 3 to equal 75. only using eachnumber once?? thanks,

Mathematics
1 answer:
Margaret [11]3 years ago
7 0
You might have to use parentheses to get 75...
The answer is
6(7+5) + 3

Need an explanation?
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HELP
Komok [63]

Answer: 1/8 is left over.

Step-by-step explanation:

Tess already at half of the pizza, and Shawn ate a quarter of the pizza.

1/2 + 1/4= 3/4

There is a quarter of pizza remaining, but Molly ate half of that quarter (1/8). There is only 1/8 of pizza left.

5 0
3 years ago
Read 2 more answers
A group issimpleif it has no nontrivial proper normal subgroups. LetGbe a simple group of order168. How many elements of order 7
stepladder [879]

Answer:

6*8=48 groups with elements of order 7

Step-by-step explanation:

For this case the first step is discompose the number 168 in factors like this:

168 = 8*3*7= 2^3 *3*7

And for this case we can use the Sylow theorems, given by:

Let G a group of order p^{\alpha} m  where p is a prime number, with m\leq 1 and p not divide m then:

1) Syl (G) \neq \emptyset

2) All sylow p subgroups are conjugate in G

3) Any p subgroup of G is contained in a Sylow p subgroup

4) n(G) =1 mod p

Using these theorems we can see that 7 = 1 (mod7)

By the theorem we can't have on one Sylow 7 subgroup so then we need to have 8 of them.

Every each 2 subgroups intersect in a subgroup with a order that divides 7. And analyzing the intersection we can see that we can have 6 of these subgroups.

So then based on the information we can have 6*8=48 groups with elements of order 7 in G of size 168

3 0
3 years ago
How is completing the square beneficial?
Lelechka [254]
If it is, then you can solve the equation by taking the square root of both sides of the equation. ... Next, if the coefficient of the squared term is 1 and the coefficient of the linear (middle) term is even, completing the square is a good method to use. Finally, the quadratic formula will work on any quadratic equation
8 0
2 years ago
PLSSSS HELP ME PLSSSSS
Yakvenalex [24]

Answer:

1/27

Step-by-step explanation:

Ok this looks like a huge number but if you break it into smaller numbers its easier to work with

3^5=243 so we can write...

(3^5)^-3/5

Rule of exponents state that you can multiply powers

5*3/5=15/5=-3

Because its negative we would make it over 1

1/3^3

And simplify...

1/3*3*3

1/27

8 0
2 years ago
Y=-3x+9<br> y=-x-5 <br><br> what is the solution for the system of equations?
alexandr402 [8]

Our system of equations is:

y = -3x + 9

y = -x - 5


To solve this system of equations, we are going to use substitution. This means that we are going to substitute the second equation into the first equation since both are already solved for y in terms of x.


y = -3x + 9

-x - 5 = -3x + 9


Now, we must simplify by moving all of the constant terms to one side of the equation and all of the variable terms to the other side.


-x - 5 = -3x + 9

2x - 5 = 9

2x = 14


Finally, to undo the multiplication between the coefficient 2 and the variable x, we must divide both sides by 2 to get the variable x alone.


x = 7


Next, we must substitute in this value we have solved for x into one of the original equations to solve for the other variable, y.


y = -3x + 9

y = -3(7) + 9


To simplify, we must multiply through the parentheses and combine like terms by addition.


y = -21 + 9

y = -12


Therefore, your final answer is x = 7 and y = -12, or as an ordered pair (7, -12).


Hope this helps!

6 0
2 years ago
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