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maxonik [38]
2 years ago
9

PLEASE HELP WITH THIS PLEASE.

Mathematics
1 answer:
Artist 52 [7]2 years ago
7 0

Answer:

1, 7

Step-by-step explanation:

(3+i)(1+2i)

=3+6i+i+2i^2

=3+7i+2i^2

=1+7i

a = 1

b = 7

i^2=-1

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Help with this question please? Step by step?
Alja [10]
1.44+38+x=180
2.82+x=180
3.180-82=98
4. 98/2-3=34.7


3 0
3 years ago
1.) -2(6 - 2x) = 4(-3 + x)<br> 2.) 5 - 1(2x + 3) = -2(4 + x)
Scrat [10]

Let's solve your equation step-by-step.

Question 1:   −2(6−2x) =4(−3+x)

 

Step 1: Simplify both sides of the equation.

−2(6−2x) =4(−3+x)

(−2) (6) +(−2) (−2x) =(4)(−3)+(4)(x)(Distribute)

−12+4x=−12+4x

4x−12=4x−12

 

Step 2: Subtract 4x from both sides.

4x−12−4x=4x−12−4x

−12=−12

 

Step 3: Add 12 to both sides.

−12+12=−12+12

0=0

Answer: All real numbers are solutions.

Question 2:  

Let's solve your equation step-by-step.

5−1(2x+3) =−2(4+x)

 

Step 1: Simplify both sides of the equation.

5−1(2x+3) =−2(4+x)

5+(−1) (2x) +(−1) (3) =(−2) (4)+(−2)(x)(Distribute)

5+−2x+−3=−8+−2x

(−2x) +(5+−3) =−2x−8(Combine Like Terms)

−2x+2=−2x−8

−2x+2=−2x−8

 

Step 2: Add 2x to both sides.

−2x+2+2x=−2x−8+2x

2=−8

 

Step 3: Subtract 2 from both sides.

2−2=−8−2

0=−10

 

Answer: There are no solutions.

 

8 0
3 years ago
Find the probability of getting a head when you flip a coin, and then getting a vowel when you draw from a bag of letters with t
lesantik [10]

Answer:

UM I am not sure how you want this but a coin it is 50 50 or 1/2 and with the probability of getting a vowel is 5/26.

Step-by-step explanation:

Pls tell me if I am wrong I have no learned this yet if I am wrong I will edit it to be right.

6 0
3 years ago
Read 2 more answers
Solve for x. <br><br> -7x = 63
taurus [48]

Answer:

Thr answer will be -9

Divide each term by -7 and simplify

7 0
3 years ago
What percent of 280 is 67.2
Fiesta28 [93]

Answer:

24

Step-by-step explanation:

percent of 280 is 67.2

280×y/100=67.2

280y/100=67.2

2.8y=67.2

divide by 2.8

y=24

verify

280×24/100=67.2

6720/100=67.2

67.2=67.2


4 0
3 years ago
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