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Helga [31]
2 years ago
14

1. Complete the square to form a perfect square trinomial. 8x + x² + __

Mathematics
1 answer:
Usimov [2.4K]2 years ago
4 0
1) x^2 + 8x + 16 = (x+4)^2

Answer: C. 16

2) x^2 + 4x + 4 = (x+2)^2

Answer: B. 4
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What is 23/9 as a mixed number
Genrish500 [490]
2 5/9. Because you first find how many times 9 goes into 23 and then subtract the sum of it from the denominator and keep the same denominator as your answer.
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3 years ago
How to solve for x and what does x equal in this?​
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Answer:

10

Step-by-step explanation:

give brainliest please!

hope this helps :)

so these two angles add up to 180 degrees

7x -3 + 12x -7 = 180

7x+12x=180+7+3

19x=190

x=10

to check if this is true we can input 10 for x in each side.

7(10)-3 = 67

12(10)-7 = 113

113+67 = 180

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2 years ago
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Can someone help me with this math question & show steps ?
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3 years ago
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What are all of the real roots of the following polynomial? f(x) x^4-24x^2-25
Greeley [361]

<u>Answer:</u>

x = ±5

<u>Step-by-step explanation:</u>

We are given the following polynomial function and we are to find all of its real roots:

x^4-24x^2-25

Let y=x^2 so we can now write it as:

y^2-24y-25

Factorizing it to get:

(y^2+y)+(-25y-25)

y\left(y+1\right)-25\left(y+1\right)

\left ( y + 1 \right ) \left ( y - 2 5 \right)

Substitute back y=x^2 to get:

\left ( x^2 + 1 \right ) \left ( x^2 - 25 \right )

\left ( x^2 + 1 \right ) \left ( x + 5 \right ) \left ( x - 5 \right )

The quadratic factor has only complex roots. Therefore, the real roots are x = ±5.

3 0
3 years ago
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Diego runs for 32 seconds at -8.1 meters per second. What is his finish point?
nalin [4]

Answer:

32×(-8.1)=-259.2

Step-by-step explanation:

4 0
2 years ago
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