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podryga [215]
3 years ago
7

Solve this equation: 4+k=11

Mathematics
1 answer:
Law Incorporation [45]3 years ago
3 0

Answer:

k=7

Step-by-step explanation:

4+k=11

subtract 4 from both sides to isolate k

k= 7

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gladu [14]

Answer:

A

Step-by-step explanation:

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3 years ago
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STatiana [176]

Rationalize the numerator:

\dfrac{\sqrt{x+4}-2}x\cdot\dfrac{\sqrt{x+4}+2}{\sqrt{x+4}+2}=\dfrac{(\sqrt{x+4})^2-2^2}{x(\sqrt{x+4}+2)}=\dfrac x{x(\sqrt{x+4}+2)}=\dfrac1{\sqrt{x+4}+2}

This is continuous at x=0, so we can evaluate the limit directly by substitution:

\displaystyle\lim_{x\to0}\frac{\sqrt{x+4}-2}x=\lim_{x\to0}\frac1{\sqrt{x+4}+2}=\frac1{\sqrt4+2}=\frac14

5 0
4 years ago
Write the polynomial in factored form x^3-3x^2-10x
tatuchka [14]
The answer would be,  <span><span><span>x(<span>x+2</span>)</span></span><span>(<span>x−5</span>).</span></span>
7 0
4 years ago
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Anna [14]

Answer:

A

Step-by-step explanation:

The sum of the 3 angles in a triangle = 180°, thus

x = 180° - (52 + 32)° = 180° - 84° = 96°

The external angle of a triangle is equal to the sum of the 2 opposite interior angles.

y is an exterior angle of the triangle, thus

y = 52° + 32° = 84°

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In conclusion

x = 96°, y = 84° and z = 41°

6 0
4 years ago
PLEASE HELP ME ON THIS ONE
ElenaW [278]

Answer:

8m

Step-by-step explanation:

Find the volume of the sphere first :

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Then use the volume of the sphere to find the height :

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hope this helped :)

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2 years ago
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