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Kitty [74]
3 years ago
15

I need help with this problem please! I'll add a picture of the problem with the answers.

Mathematics
2 answers:
GaryK [48]3 years ago
7 0
Where is th epicture?
Lorico [155]3 years ago
7 0
What does it  mean clearly??
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What are the exact solutions of x^2 − 3x − 7 = 0?
bulgar [2K]

<u>Given</u>:

The given equation is x^{2} -3x-7=0

We need to determine the exact solutions of the equation.

<u>Exact solution:</u>

The exact solution of the equation can be determined by solving the equation using quadratic formula,

x=\frac{-b \pm \sqrt{b^2-4ac}}{2a}

From the equation the values are a = 1, b = -3 and c = -7

Thus, substituting these values in the equation, we get;

x=\frac{-(-3) \pm \sqrt{3^2-4(1)(-7)}}{2(1)}

x=\frac{3 \pm \sqrt{9+28}}{2}

x=\frac{3 \pm \sqrt{37}}{2}

Thus, the exact solutions of the given equation is x=\frac{3 \pm \sqrt{37}}{2}

Hence, Option A is the correct answer.

6 0
3 years ago
I really need the help please and thank you
eimsori [14]

Asnwer: C

-------------------------------------

3 0
3 years ago
Simplify: -7/9-(-5/12)+1/3. ​
alexandr1967 [171]

Step-by-step explanation:

please mark me as brainlest

7 0
3 years ago
Read 2 more answers
A circle has a circumference of 6. It has an arc of length 1.
Viktor [21]

Answer:

<h3>60°</h3>

Step-by-step explanation:

Given that:

  • Circumference (C) = 6 units
  • Arc length (A) = 1 unit

<u>Find the central angle (</u><u>θ</u><u>)</u>

Arc is some part of circumference; thus,

the equation of arc length =

A = θ/360 × C

θ/360 = A/C

θ = (360×A)/C

θ = (360×1)/6

θ = 360 ÷ 6

<h3>θ = 60° ✅</h3>

Central angle = 60°

______________

#IndonesianPride

- kexcvi

8 0
3 years ago
Could you please help me on this question out really appreciate it!
PtichkaEL [24]
The answer is 24

hope this helps :)
4 0
3 years ago
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