3 years ago

I need help with number 3 who can help me

Mathematics

1 answer:

scoray [572]3 years ago

5 0

What kind a book is that and what grade bc it seems fimilar

You might be interested in

In honors math increased by 12% in this year students-

tankabanditka [31]

Answer:

True I think.

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Find the square roots of 119 + 120i algebraically.

blondinia [14]

Answer:

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 $x=p^2$

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

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

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

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

x=149.85

$p^2=149.85$

thus $p=\pm 12.24$

$q=\mp 4.90$

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

8 0

3 years ago

What is the simplest form of 48/15

dsp73

16/5. Just divide 48/15 by 3.

7 0

4 years ago

Read 2 more answers

Find the quotient of 1 1/5 and 3 4/5

kherson [118]

Answer:

0.2 and 0.8

Step-by-step explanation:

4 0

4 years ago

What are the lines in the picture parallel ?

Tems11 [23]

I think it’s D because they are never going to touch

8 0

3 years ago