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leonid [27]
3 years ago
15

Two roots of a 3-degree polynomial equation are 5 and -5. Which of the following cannot be the third root of the equation?

Mathematics
2 answers:
cricket20 [7]3 years ago
7 0

Answer:

5i and -5i

Step-by-step explanation:

Both of these would have to be in the equation for either of them to work, and as the problem already told us that there is only a 3rd root, neither will be our answer.

Have a great day, and feel free to comment with questions!

:)

Pavel [41]3 years ago
6 0

Answer:

5i and -5i

Step-by-step explanation:

Imaginary roots come in pairs, so the third root must be a real number.  Therefore, neither 5i nor -5i can be the third root.

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3 years ago
Eddie is going to flip a coin and spin a spinner. The coin has a heads and a tails. The spinner has three equal parts that are y
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Answer:

1/6

Step-by-step explanation:

For coin its 1/2 for spinner its 1/3

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Hope this helps

7 0
3 years ago
Answer this for me please
Anastasy [175]

Answer:

{ t | all real number }

Step-by-step explanation:

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4 0
2 years ago
Y=3[x]+1 <br> Step by step
finlep [7]

y=3x+1

Use the slope-intercept form to find the slope and y-intercept

The slope-intercept form is y=mx+b

, where m is the slope and b

is the y-intercept.

y=mx+b

Find the values of m

and b using the form y=mx+b

.

m=3

b=1

The slope of the line is the value of m

, and the y-intercept is the value of b

.

Slope: 3

Y-Intercept: 1

Any line can be graphed using two points. Select two x

values, and plug them into the equation to find the corresponding y

values.


Choose 0

to substitute in for x

to find the ordered pair.


Replace the variable x

with 0

in the expression.

f(0)=3(0)+1

Simplify the result.

Tap for more steps...

1

The first point is (0,1)

.

(0,1)

Choose 1

to substitute in for x

to find the ordered pair.

Tap for fewer steps...

Replace the variable x

with 1

in the expression.

f(1)=3(1)+1

Simplify the result.


Multiply 3

by 1

.

f(1)=3+1

Add 3

and 1

.

f(1)=4

The final answer is 4

.

4

The second point is (1,4)

.

(1,4)

Create a table of the x

and y

values.

xy0114

Graph the line using the slope and the y-intercept, or the points.

Slope: 3

Y-Intercept: 1

xy0114

7 0
3 years ago
If f(x) = 5x + 40, what is f(x) when x = -5? og O 8 O 7 O 15​
Juli2301 [7.4K]

Answer:

15.

Step-by-step explanation:

5 * - 5 + 40 = 15

8 0
3 years ago
Read 2 more answers
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