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Karo-lina-s [1.5K]

3 years ago

11

-6×-15=4×+35 i need help with this problem

2 answers:

drek231 [11]3 years ago

5 0

Answer:

x = -5

Step-by-step explanation:

-6x - 15 = 4x + 35

+ 15 + 15

-6x = 4x + 50

-4x - 4x

-10x = 50

-10x/-10 = 50/-10

x = -5

Burka [1]3 years ago

3 0

Isolate the variable by dividing each side by factors that don't contain the variable.

-6x-15+15=4x+35+15

-6x=4x+50
(Subtract 4 on both sides)

-10x=50
(Divide by 10 on both sides)

x=5

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a vase has 6 flowers in it. there are 3 roses, 1/3 are peonies, and the rest are lilies. what fraction of the flowers are lilies

Rudik [331]

Hi there!

We can start off by taking out some key information from this problem.

- 6 flowers in the vase.
- 3 are roses. (3/6)
- 2 are peonies. (2/6)
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3 years ago

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Save me the headache

maxonik [38]

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Taking the square root of both sides gives two possible cases,

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or

$9\sin2x+9\cos2x=-9\implies\sin2x+\cos2x=-1$

Recall that

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If $\alpha=2x$ and $\beta=\dfrac\pi4$ , we have

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so in the equations above, we can write

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Then in the first case,

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$\implies2x=2n\pi\text{ or }\dfrac\pi2+2n\pi$

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and in the second,

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$\implies2x=-\dfrac\pi2+2n\pi\text{ or }-\pi+2n\pi$

$\implies x=-\dfrac\pi4+n\pi\text{ or }-\dfrac\pi2+n\pi$

Then the solutions that fall in the interval $[0,2\pi)$ are

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3 years ago

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EleoNora [17]

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