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dmitriy555 [2]
3 years ago
14

Subtract 9x2 – 7x from – 4x2 + 6.

Mathematics
1 answer:
Sunny_sXe [5.5K]3 years ago
8 0

Answer:

-4x^2 + 6 - 9x^2 + 7x

-13x^2 - 7x + 6

Step-by-step explanation:

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Find x please help thank you
Angelina_Jolie [31]

Answer: x=(7√6)/2

Step-by-step explanation:

To find x, we would have to find the hypotenuse of the 45-45-90 triangle. First, we would have to find the hypotenuse by using the 30-60-90 triangle on top to find it.

For a 30-60-90 triangle, the hypotenuse is 2x in length. the x is the same in all sides. All you would have to do is to plug it in. The leg opposite of 60° is x√3 in length. the leg opposite of 30° is x in length.

Since we know that 7 is opposite of the 30° angle, we know that x is 7. Across fron 60° is the hypotenuse of the 45-45-90 triangle. That leg is x√3. We plug in x=7 and get 7√3.

The hypotenuse of the 45-45-90 triangle is x√2 and the legs are both x. We can set 7√3 equal to x√2 to find x of the missing side.

7√3=x√2           [divide both sides by √2]

x=(7√6)/2

Now, we know x=(7√6)/2.

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3 years ago
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Romashka [77]

Answer:

m-1

Step-by-step explanation:

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A triangle has an area of 12 cm² and a height of 12 cm what is the base of the triangle
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1 cm is the base of the triangle
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I've been stuck on this question for 48 years. Please help me out of my misery. I'll give brainliest and all of my love if it's
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Step-by-step explanation:

4 0
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