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____ [38]
3 years ago
6

Someone please help me by tonight I'm trying not to fail math. Also I will Brainliest if you help me get the right answer please

just help me.
1. What is the product of the complex numbers (3+i) and (3-i)?
A. 10-6i
B.9-i
C.8
D.10

2. Which expression Represents (-3-2i)-(5+i)?
A.-8-i
B.-8-3i
C.2-i
D.2-3i


3. What is the sum of the complex numbers (12-5i) and (-3+4i)?
A. 15-9i
B.9-i
C.9-9i
D.-16+63i

4. Which expression is equivalent to (6-2i)(2-3i)?
A. 6+22i
B. 18+22i
C. 6-22i
D. 18-22i

5. Simplify: (2+6i)-(3-5i)-(5-3i)
A. -4+16i
B. -6+14i
C. -6-2i
D. -4-4i

6. Which expression below is equivalent to 4i(12-7i)
A. -28+48i
B. -48+28i
C. 48+28i
D. 28+48i

7. Add √ -4+√-49
A. -9i
B. 5+I
C. 5-i
D. 9i​
Mathematics
1 answer:
vredina [299]3 years ago
6 0

Answer:

1. answer is D

2. Answer is D

3.Answer is B

4. Answer is C

5. Answer is B

6. Answer is D

7.Answer is D

Step-by-step explanation:

You might be interested in
Evaluate -15cos60°.<br><br> A. -0.5<br> B. -7.5<br> C. -14.5
kipiarov [429]

Answer:

B

Step-by-step explanation:

make sure calculator is in degrees mode and insert equation to get -7.5

8 0
3 years ago
HELP PLEASEE ASAP<br><br><br>The zero of F ^-1(x) in F(x) = x + 3 is<br><br> -3<br> 0<br> 3
Wewaii [24]
<span>F(x) = x + 3

y = x + 3
y - 3 = x

so
</span><span>F ^-1(x)  = x - 3

</span><span>The zero of F ^-1(x) is -3

answer is 

</span><span>-3</span>
7 0
3 years ago
A) Use numbers 7,5,6 and 3, only once each, to create an expression that equals 75. You may use addition, subtraction, multiplic
bearhunter [10]
6(7+5) + 3 =
42 + 30 + 3 =      <<<< This one is the equivalent expression

If you wanted to continue and solve...

72 + 3 =
75
6 0
3 years ago
what is 6 x 3/5.................................................................................................................
Goshia [24]

Answer

3.6

Step-by-step explanation:

3/5 is equal to .6 so multiply 6x.6

5 0
3 years ago
What is the length of the hypotenuse of the triangle
Darya [45]

Answer:

The length of the hypotenuse is the square root of 289 or 17 cm.

Step-by-step explanation:

So the formula for finding the hypotenuse of any triangle is a square plus b square equals c square. 15 square plus 8 square is 289, You'd have to find its square root which equals 17 cm. If this helps, please rank Brainliest. Thanks!

6 0
3 years ago
Read 2 more answers
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