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vagabundo [1.1K]
4 years ago
14

Hi, I need some help with the expressions that are squared and cubed as I don't know how to work it out. Thanks!

Mathematics
1 answer:
PolarNik [594]4 years ago
6 0
Factor c out (1)

18c^2 - 12cb = c(18c - 12b) then do the numbers
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Question 5 (05.05)Based on the graph, what is the initial value of the linear relationship?
vlabodo [156]

4

1) Examining that graph, we can see that this is a decreasing function, due to the line direction. And that the initial value is the y-intercept.

2) Hence, the initial value is 4. Notice that all values after that goes decreasing for y.

4 0
1 year ago
Sabendo que a soma de três termos consecutivos de uma progressão aritmética é 18 e que o seu produto é 16, determina esses númer
Sholpan [36]

Answer:

pog champers!

Step-by-step explanation:

6 0
3 years ago
Eighty percent of seniors at the local high school graduate each year. If there are 750 seniors this year, how many will graduat
yulyashka [42]
What you need to find is 80% of 750

There are many ways to figure that out but the way that I did it is to divide 750 by 100. The answer (7.5). Is 1% of 750
In all I had to do was multiply 7.5 x 80. Giving us the answer which is 600
4 0
3 years ago
Write an equation to solve each problem and then solve it. In a 3-digit number, the hundreds digit is four more than the ones di
horsena [70]
Hey there :)

Let us translate the sentences to mathematics for ease!
A 3-digit number
Ones digit → ( let p represent is )
Hundreds digit is four more than ones digit → ( 4 + p )
Tens digit is twice hundreds digit → 2 ( 4 + p ) = 8 + 2p
Sum of the digits is 12 
           ↓
Hundreds digit + Tens digit + Ones digit = 12
( 4 + p  ) + ( 8 + 2p ) + p = 12

Combine like terms
4 + 8 + p + p + 2p = 12
12 + 4p = 12

Take 12 to the opposite side { Do subtraction when you see addition }
12 ( - 12 ) + 4p = 12 - 12
4p = 0

Divide by 4 on either side
\frac{4p}{4} = \frac{0}{4}
p = 0
( 4  + 0 ) + ( 8 + 2 ( 0 ) ) + ( 0 )

The number is 480

Check 
Hundreds + Tens + Ones = 12
4 + 8 + 0 = 12
12 = 12

4 0
4 years ago
If x+y+z=0 show that<br>x+y+z=3xyz​
Harlamova29_29 [7]

Answer:

Step-by-step explanation:

perhaps you mean

x^3+y^3+z^3 = 3xyz

because

x+y+z = 0

x^3 + y^3 + z^3 - 3xyz = (x + y + z )(x^2 + y^2 + z^2 -xy - yz - xz)

(this equation is an identity)

x^3 + y^3 + z^3 - 3xyz = (<em>x + y + z</em> )(x^2 + y^2 + z^2 -xy - yz - xz)

x^3 + y^3 + z^3 - 3xyz = (<em>0</em>)(x^2 + y^2 + z^2 -xy - yz - xz)

x^3 + y^3 + z^3 - 3xyz = 0

x^3 + y^3 + z^3  = 3xyz

5 0
3 years ago
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