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labwork [276]
3 years ago
5

I'm offering 20 points, only answer is you're smart

Mathematics
2 answers:
Marianna [84]3 years ago
7 0

It only gives the answerer half the points that you pay, for future reference.

erik [133]3 years ago
3 0

both angles need to equal 180 degrees

3x+18 +5x+2 =180

8x+20 = 180

8x =160

x = 160/8 = 20

x = 20

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Percent decrease 95 to 15
scZoUnD [109]

Answer:

84.2105263 % decrease

Step-by-step explanation:

Take the original and subtract the new

95-15 = 80

Divide by the original

80/95

.842105263

Change to percent form

84.2105263 % decrease

5 0
3 years ago
What are the zeros of the quadratic function f(x) = 2x² + 16x - 9?
jeka57 [31]

The zeros of the quadratic function f(x) = 2x² + 16x - 9 are given as follows:

x = -4 + \sqrt{\frac{41}{2}}, x = -4 - \sqrt{\frac{41}{2}}

<h3>What is a quadratic function?</h3>

A quadratic function is given according to the following rule:

y = ax^2 + bx + c

The solutions are:

x_1 = \frac{-b + \sqrt{\Delta}}{2a}

x_2 = \frac{-b - \sqrt{\Delta}}{2a}

In which:

\Delta = b^2 - 4ac

In this problem, the equation is given by:

f(x) = 2x² + 16x - 9.

The coefficients are a = 2, b = 16, c = -9, hence:

\Delta = 16^2 - 4(2)(-9) = 328

Then:

x_1 = \frac{-16 + \sqrt{328}}{2(2)} = -4 + \sqrt{\frac{41}{2}}

x_2 = \frac{-16 - \sqrt{328}}{2(2)} = -4 - \sqrt{\frac{41}{2}}

More can be learned about quadratic functions at brainly.com/question/24737967

#SPJ1

5 0
2 years ago
Catherine has $54. She plans to spend more than $20 of the money for a painting canvas. The rest will go toward paints. Each tub
igor_vitrenko [27]
54-20 = 34
34 / 8,50=4
le alcanzara para comprar 4 tubos de pintura

5 0
3 years ago
Simplify the radical expression. Use absolute value symbols if needed. Show work.
jenyasd209 [6]
\sqrt{36g^{6}} \\ 6g^{3}
4 0
2 years ago
You are writing the inequality for age. At an amusement park, children ages 3 and under are free. Write an inequality.
atroni [7]

Answer:

Step-by-step explanation:

So you would do x as other ages, 3 as well obviously 3.

x < 3

THE < WILL HAVE A LINE UNDER IT!

The line stands for less than or EQUAL to. In this case, you have to be 3 or younger. Do not forget the line under the <. I am unable to type it!

3 0
3 years ago
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