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dedylja [7]
3 years ago
15

1. Use the number line to find the coordinate of the midpoint of segment BD.

Mathematics
1 answer:
Greeley [361]3 years ago
8 0

Answer:

the answer would be 9.

Step-by-step explanation:

i had this question on my test.

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QUICKKKKK Someone plz answer number 2
Naily [24]

Answer:

5 times the sun of 2x and 3y equals the difference of y to the second power and 2x cubed

4 0
3 years ago
Select the two values of x that are roots of this equation
Jet001 [13]
<h2>Hello!</h2>

The answers are:

B.   \frac{-3-\sqrt{29}}{2}

C.   \frac{-3+\sqrt{29}}{2}

<h2>Why?</h2>

We can use the quadratic equation to find the two values of x that are roots of the given equation. We must remember that most of the quadratic equations have two roots, however, we could find quadratic equations with just one root or even with no roots, at least in the real numbers.

Quadratic equation:

\frac{-b+-\sqrt{b^{2}-4ac} }{2a}

So,

From the given equation we have:

a=1\\b=3\\c=-5

Substituting it into the quadratic equation to find the roots, we have:

\frac{-b+-\sqrt{b^{2}-4ac} }{2a}=\frac{-3+-\sqrt{3^{2}-4*1*-5} }{2*1}\\\\\frac{-3+-\sqrt{3^{2}-4*1*-5} }{2*1}=\frac{-3+-\sqrt{9+20} }{2}\\\\\frac{-3+-\sqrt{29}}{2}

So,

x_{1}=\frac{-3-\sqrt{29}}{2}\\\\x_{2}=\frac{-3+\sqrt{29}}{2}

Hence, the correct options are B and C.

7 0
3 years ago
What is 17x&gt; -17 solve for x
irakobra [83]

Answer:

Step-by-step explanation:

17x > -17

x > -1

5 0
3 years ago
X² - 40x-129 resolve into factor​
Lelu [443]

Answer:

(x - 43)(x + 3)

Step-by-step explanation:

consider the factors of the constant term (- 129) which sum to give the coefficient of the x- term (- 40)

the factors are - 43 and + 3 , since

- 43 × + 3 = - 129 and - 43 + 3 = - 40 , then

x² - 40x - 129 = (x - 43)(x + 3) ← in factored form

8 0
2 years ago
Simplify 12+(38−18)2
Basile [38]

Answer:

52

Step-by-step explanation:

12 + (38 - 18)2 = 12 + 20 × 2 = 52.

7 0
1 year ago
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