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MakcuM [25]
3 years ago
9

Which of the following equations have two complex solutions? Select all that apply.

Mathematics
2 answers:
Andrews [41]3 years ago
4 0

Correct Answer: A and F!!

A- 3x^2+ 5x + 10=0

F- 2x^2 + 12 = -9x

Step-by-step explanation: Just did it and it’s right, hope that helped!! :)

Tanzania [10]3 years ago
3 0

Answer:

abe

Step-by-step explanation:

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Given F(x) =3x^2 - 4 and F(a) = 8 find a
Bogdan [553]

F(x)=3x^2-4\\\\F(a)=8\to3a^2-4=8\qquad\text{add 4 to both sides}\\\\3a^2=12\qquad\text{divide both sides by 3}\\\\a^2=4\to a=\pm\sqrt4\to a=\pm2\\\\Answer:\ \boxed{A.\ \pm2}

5 0
3 years ago
Add. Write your answer in simplest form.
Marianna [84]

Answer:

26 over 3 =2

                  ------ = 8.667

                     3

Convert mixed number to improper fraction

5 and 3 over 45

3

4

= ( 5 × 4 ) over 4

5 × 4

4

+ 3 over 4

3

4

= ( 20 + 3 ) over 4

20 + 3

4

= 23 over 4

23

4

Step 1 of 2: Add, sub-step b: Convert mixed number to improper fraction.

Convert mixed number to improper fraction

2 and 11 over 122

11

12

= ( 2 × 12 ) over 12

2 × 12

12

+ 11 over 12

11

12

= ( 24 + 11 ) over 12

24 + 11

12

= 35 over 12

35

12

Step 1 of 2: Add, sub-step c: Find common denominator.

Find common denominator

23 over 4

23

4

+ 35 over 12

35

12

= ( 23 × 3 ) over ( 4 × 3 )

23 × 3

4 × 3

+ ( 35 × 1 ) over ( 12 × 1 )

35 × 1

12 × 1

= 69 over 12

69

12

+ 35 over 12

35

12

12 is the least common multiple of denominators 4 and 12. Use it to convert to equivalent fractions with this common denominator.

Step 1 of 2: Add, sub-step d: Add.

Add

69 over 12

69

12

+ 35 over 12

35

12

= ( 69 + 35 ) over 12

69 + 35

12

= 104 over 12

104

12

                 

5 0
2 years ago
Read 2 more answers
R/10+4=5 two step equations with integers
Kamila [148]

Answer:

So we have this equation:

r/10 + 4 = 5

FIrst, we can substract 4 in both sides

r/10 + 4 - 4 = 5 - 4

r/10  = 1

Now, we can multiply both sides per 10:

r/10 * 10 = 1 * 10

r = 10

And we know that r = 10, and that's the result of the equation.

7 0
3 years ago
A pizza has a diameter of 10 inches. If the
s344n2d4d5 [400]

Answer:

78.5

Step-by-step explanation:

The formula for area of a circle is pir^2

So we have 5 for r, so r^2 would be 25.

Using 3.14 for pi, we get the answer is 78.5

4 0
3 years ago
Read 2 more answers
Cindy has a poster in the shape of a parallelogram.
Galina-37 [17]

You are basically trying to find the area of two triangles and a rectangle.

Rectangle= A= length*width

Triangle= A= 1/2*base*height

Rectangle:

1.5*1.9= 2.85

Two triangles:

A= 1/2* 0.5*1.5

A=1/2*.75

A=0.375

Multiply that by two, because the triangles are the same. 

.75

.75+2.85= 3.6

3.60 ft^2 <== the answer :)

Always message me when you need help like this! I’m a college educated student! All subjects are answered!

8 0
4 years ago
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