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stich3 [128]
3 years ago
12

PLEASE HELP! What are the real and imaginary parts of the complex number? -7+8i

Mathematics
2 answers:
klio [65]3 years ago
5 0

Answer: The real  part is -6

The imaginary  part is 2i

Step-by-step explanation:

Elden [556K]3 years ago
5 0

Answer:Final answer is -6

Step-by-step explanation Imaginary part= 2i so the answer would be -6

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What is 2223810294+ 55367457 + 23523546?
andrezito [222]
2223810294 + 55367457 + 23523546 = 2302701297
3 0
3 years ago
A boat in still water is 32 mph. If the boat travels 72 miles upstream in the same time that it takes to travel 120 miles downst
dalvyx [7]
Dup= 72 miles 
<span>ddown= 120 miles </span>
<span>v= riverspeed </span>
<span>rup= 32mph - v </span>
<span>rdown= 32mph + v </span>
<span>t both ways= t </span>

<span>d=r*t </span>
<span>d/r=t </span>

<span>t=ddown/rdown </span>
<span>t=dup/rup </span>

<span>dup/rup = ddown/rdown </span>

<span>(72)/(32-v)=(120)/(32+v) </span>
<span>3840-120v=2304+72v </span>
<span>1536=192v </span>
<span>v=8</span>
8 0
3 years ago
Complete the square f(x) = x^2 + 4x - 8 <br><br><br> PLZ help me ;c
Semenov [28]
Ok, first group x terms
f(x)=(x²+4x)-8
factor out quadratic coefient (no need but that's the step)
f(x)=1(x²+4x)-8
take 1/2 of the linear coefient and square it
4/2=2, (2)²=4
add positive and negative of it insides the parenthasees
f(x)=1(x²+4x+4-4)-8
factor perfect square
f(x)=1((x+2)²-4)-8
distribute
f(x)=1(x+2)²-4-8
f(x)=1(x+2)²-12
and, now if we wanted to find the x intercepts where f(x)=0 then
0=1(x+2)²-12
12=(x+2)²
+/-2√3=x+2
-2+/-2√3=x

x=-2+2√3 or -2-2√3
that is where the x intercept are

and completed square form is
f(x)=(x+2)²-12
6 0
3 years ago
What is 45 + 97 + 140
sweet [91]

Answer:

Use a Calculator

Step-by-step explanation:

You have on on you phone

6 0
3 years ago
What is the simplified form of 72x16/50x36 ? Assume x ≠ 0.
AleksandrR [38]

72 / 50 = 36/25

x^16 / x^36

= x^-20


simplified form is   36 / 25x^20

7 0
3 years ago
Read 2 more answers
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