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2 years ago

6÷100can you help me

Mathematics

1 answer:

Pavel [41]2 years ago

7 0

Answer:

0.06

Step-by-step explanation:

Uhhhhhhhh don't know how to explain it.

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X2 + 45x = -200 Using the quadratic formual and the discirimnat

dybincka [34]

Answer:

Positive discriminant = 2 real solution

x= -5,-40

Step-by-step explanation:

The discriminant is used to see how many solutions an equation has. If it is negative, the equation has no real solutions, if =0 the equation has 1, and if it is positive, the equation has two real solutions.

The discriminant is the part of the quadratic formula inside the square root:

$b^{2}-4ac$

Every quadratic formula has the structure:

$ax^{2} +bx+c=0$

So first, in order to meet this structure we need to add 200 to both sides so the equation is equal to 0. This gives us:

$x^{2} +45x+200=0$

Our a=1, b=45 and c=200

Now we can substitute these values into the discriminant:

$(45)^{2} -4(1)(200)$

Solve:

$2025-800=1225$

The discriminant is a positive number which means this equation will have 2 real solution. Now we just need to plug in our values into the quadratic formula to solve this equation. Quadratic formula:

$x=\frac{-+/-\sqrt{b^{2}-4ac} }{2a} \\x=\frac{-45+/-\sqrt{1225} }{2}$

(Same discriminant value)

$x=\frac{-45+/-35}{2}$

Now to find the two solutions, we use both signs in the equation. Solution 1:

$x=\frac{-45+35}{2}$

$x=\frac{-10}{2}=-5$

Our first solution is -5, now for the second:

$x=\frac{-45-35}{2}\\\\ x=\frac{-80}{2}=-40$

The two solution to this equation are -5 and -40.

Hope this helped!

7 0

3 years ago

8. A right triangle has an angle

LekaFEV [45]

Answer:

The missing angle is 37.60 degrees.

Step-by-step explanation: 180-90-52.40=37.60

8 0

2 years ago

The two legs of a right triangle are 9 and 40. how long is the third side

Sonbull [250]

Refer to the diagram shown below.

Let x = the length of the third side (the hypotenuse) of the right triangle.
From the Pythagorean Theorem, obtain
x² = 9² + 40² = 81 + 1600 = 1681
x = 41

Answer: 41

6 0

3 years ago

<img src="https://tex.z-dn.net/?f=-4%283x%2B1%29%2Bx-3%3D15" id="TexFormula1" title="-4(3x+1)+x-3=15" alt="-4(3x+1)+x-3=15" alig

Sati [7]

$x = - 2$ is the answer

Explanation -

$-4(3x+1)+x-3=15$

$= > - 12x - 4 + x - 3 = 15$

$= > - 11x - 7 = 15$

$= > - 11x = 15 + 7$

$- 11x = 22$ $= > x = - \frac{22}{11}$

$= > x = - 2$

~ Benjemin360

4 0

2 years ago

Read 2 more answers

A teacher wants to know if students at Lakers High would rather have hot dogs or hamburgers at the school cookout. Which group o

mafiozo [28]

Option A.

The reasoning behind my answer is that you would be getting a large and random group of students meaning that they have many different people and not a specific group of people. Randomly choosing also gives a chance of getting all grades meaning that it wouldn't just be one specific grade of which was surveyed.

Hope this helps and have a nice day.

-R3TR0 Z3R0

5 0

2 years ago

6÷100can you help me​

6÷100can you help me