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yuradex [85]
3 years ago
15

Simplify -x - 2 + 15x

Mathematics
2 answers:
alekssr [168]3 years ago
6 0

Answer:

14x-2

Step-by-step explanation:

mrs_skeptik [129]3 years ago
6 0

Answer:

14x - 2

Step-by-step explanation:

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Find the exact solutions of x2 − 3x − 5 = 0 using the quadratic formula. Show all work! 75 points please help!!!!!
noname [10]

Answer:

x=\dfrac{3+ \sqrt{29}}{2}, \quad \dfrac{3- \sqrt{29}}{2}

Step-by-step explanation:

<u>Quadratic Formula</u>

x=\dfrac{-b \pm \sqrt{b^2-4ac}}{2a}\quad\textsf{when }\:ax^2+bx+c=0

<u>Given quadratic equation</u>:

x^2-3x-5=0

<u>Define the variables</u>:

\implies a=1, \quad b=-3, \quad c=-5

<u>Substitute</u> the defined variables into the quadratic formula and <u>solve for x</u>:

\implies x=\dfrac{-(-3) \pm \sqrt{(-3)^2-4(1)(-5)}}{2(1)}

\implies x=\dfrac{3 \pm \sqrt{9+20}}{2}

\implies x=\dfrac{3 \pm \sqrt{29}}{2}

Therefore, the exact solutions to the given <u>quadratic equation</u> are:

x=\dfrac{3+ \sqrt{29}}{2}, \quad \dfrac{3- \sqrt{29}}{2}

Learn more about the quadratic formula here:

brainly.com/question/27868610

brainly.com/question/27750885

8 0
2 years ago
Read 2 more answers
What could I say for this question anybody who answers this gets brainlist <br> Answer ASAP!
QveST [7]
Well simply just state ur learning goals are. In my opinion I would keep it short and simple but give a bit of detail to it. At most like 6 sentences should be ok and should work as an answer
7 0
2 years ago
$4.30 for make up; 40% dicount; 6% tax
Wittaler [7]
$4.30X40%=1.72
4.30-1.72=2.58
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2.58+.15=2.73
Final price: $2.73
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3 years ago
A pentagonal prism is cut be a plane perpendicular to the base . What is the shape of the cross section that is formed?
Allisa [31]

Answer:

Step-by-step explanation:

The cross section will have the same shape as the base of the pentagonal prism; the dimensions will be proportionally smaller.

3 0
3 years ago
Find the length of the third side. If necessary, round to the nearest tenth.​
My name is Ann [436]

Answer:

7.8

Step-by-step explanation:

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3 years ago
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