All categories

3 years ago

Combining like terms 5a+ 2b + b -2a + 4

Mathematics

1 answer:

Schach [20]3 years ago

4 0

$5a+ 2b + b -2a + 4 \\ \\ (5a - 2a) + (2b + b) + 4 \\ \\ 3a + 3b + 4 \\ \\$

The final result is: 3a + 3b + 4.

You might be interested in

Andrea was given a $700 hiring bonus with her new job she will earn an average commission of $250 per week for the next 15 weeks

Bad White [126]

Answer:

4,450

Step-by-step explanation:

You muiltiply 250 times 15 then you add 700

8 0

4 years ago

4(x+4) =2x-1 8 Show work

Ierofanga [76]

Answer:

4(x+4) =2x-18

4x+16=2x‐18

4x–2x= –18 –16

2x= – 34

x= –34/2

x= – 17

I hope I helped you^_^

3 0

3 years ago

Read 2 more answers

F(x) = x^2. What is g(x).

exis [7]

The answer is C because you just have to plug in the given point to the different answers.

7 0

4 years ago

What is the other square root of 119 + 120i?

MakcuM [25]

Answer:

$\sqrt{119+120 i}=\pm (12.24+i 4.90)$

Step-by-step explanation:

Given

z = 119 + 120 i

Let $\sqrt{119+120 i}=p+iq$

Squaring both sides

$119+120 i=p^2-q^2+2ipq$

Comparing real and imaginary part

Re(LHS)=Re(RHS)

$119=p^2-q^2$ ...........................(1)

comparing Im(LHS)=Im(RHS)

120=2pq

$q=\frac{60}{p}$

Substitute q in 1

$119=p^2-(\frac{60}{p})^2$

$p^4-119p^2-(68)^2=0$

Let $x=p^2$

$x^2-119x-4624=0$

$x=\dfrac{119\pm \sqrt{119^2+4\times 4624}}{2}$

$x=\frac{119\pm 180.71}{2}$

we take only Positive value because $p^2=x$

x=149.85

$p^2=149.85$

thus $p=\pm 12.24$

$q=\pm 4.90$

thus,

$\sqrt{119+120 i}=\pm (12.24+i 4.90)$

8 0

3 years ago

Solve the system. x+3y= 22 2x -y=2 (7,5) (2,2) (4,6) no solution

kirill115 [55]

Answer:

x = 4 , y = 6

Step-by-step explanation:

Solve the following system:

{x + 3 y = 22 | (equation 1)

2 x - y = 2 | (equation 2)

Swap equation 1 with equation 2:

{2 x - y = 2 | (equation 1)

x + 3 y = 22 | (equation 2)

Subtract 1/2 × (equation 1) from equation 2:

{2 x - y = 2 | (equation 1)

0 x+(7 y)/2 = 21 | (equation 2)

Multiply equation 2 by 2/7:

{2 x - y = 2 | (equation 1)

0 x+y = 6 | (equation 2)

Add equation 2 to equation 1:

{2 x+0 y = 8 | (equation 1)

0 x+y = 6 | (equation 2)

Divide equation 1 by 2:

{x+0 y = 4 | (equation 1)

0 x+y = 6 | (equation 2)

Collect results:

Answer: {x = 4 , y = 6

7 0

3 years ago