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Ierofanga [76]
3 years ago
14

Add or subtract as indicated and write the result in standard form. 5i - (-5 - i)

Mathematics
1 answer:
AlexFokin [52]3 years ago
5 0

Simplify by combing the real and imaginary parts of each expression.

5 + 6i

Arrange the expression into the a+bi form of a complex number.

5+ 6i

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Abigail mixes 2/3 pounds of walnuts with 3/5 puns of dried fruit.To create more of the same mixture how many pounds of walnuts d
Nataly_w [17]
Step one. create a common denominator.
ex. 15
walnuts = 10/15 dried fruit= 9/15

so if you had 15/15 pounds of dried fruit you would need 16/15 pounds of walnuts

which is 1 1/15 pounds of walnuts
8 0
3 years ago
Evaluate the expression:<br><br> x^2+2x−xy when x = 250 and y = −120
NikAS [45]

Answer:

33000

Step-by-step explanation:

Substituting 250 for x and -120 for y, we get:

(250)^2 + 2(250) - (250)(120)  =  62500 + 500 - 30000, or

32500 + 500, or 33000

5 0
3 years ago
Find the EXACT value of sec (-120 degrees)
kenny6666 [7]
Sec is 1/cos so sec -120 is 1/cos -120 which is -2
3 0
3 years ago
Read 2 more answers
WORTH 100 POINTS!
zzz [600]

Answer:

7miles

equations shown in work image below

work shown on the paper with more explanations because text is hard to write equations (sorry I used km but it is miles for your problem.)

:) please give a heart for thanks

and brainliest crown :)

Step-by-step explanation:

For both d=r*t

Each bikes to others house and leave at the same time so for Tony,

11 = 30*t

t= 11/30 hours

for Gerry,

11 = 25*t

t= 11/25 hours

Comparing these, with LCD,

Tony's time is 55/150

Gerry's time is 66/150

So Tony got to Gerry's house 11/150 hours quicker than Gerry got to Tony's house.

Now they turn around and head back toward each other. If they leave at the same exact time, the elapsed time for each until they met would be the same so t (for tony) = t (for gerry), but Tony got a head start.

We start the stopwatch when Gerry turns around 11/150 hours after Tony has turned around. If Gerry's time to where they meet from Tony's house t(gerry), then Tony's time from Gerry's house is t(gerry) + 11/150

5 0
3 years ago
Read 2 more answers
4x-3y=30<br> 3x+2y=22<br> (6,-2)
shusha [124]

This ordered pair is not a solution for the given equations. We can tell this by plugging in to each of them and seeing that it does not provide a true statement for both. It does work for the first, but is not an intersection due to it not working for each.

4x - 3y = 30

4(6) - 3(-2) = 30

24 + 6 = 30 (TRUE)

3x + 2y = 22

3(6) + 2(-2) = 22

18 - 4 = 22

16 =/= 22 (FALSE)

5 0
4 years ago
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