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Romashka-Z-Leto [24]
3 years ago
11

Salut! |4x^2+9x-9|=0 X= ? Multumesc in avans :D

Mathematics
1 answer:
Afina-wow [57]3 years ago
8 0
X=3 or -3/4.<span>Îmi pare rău că nu mi-am arătat munca</span>
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*25 points*
maxonik [38]

Answer:

6

Step-by-step explanation:

root the 216 as it is a cube

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Since all edges are the same, just root it

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2 years ago
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solniwko [45]

Well, the answer would bee 1/10 for a simple reason: the 3 in 7.315 is in the tenth's spot while the 3 in 893.5 is in the ones. a one spot different that can be proven with logic.

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2 years ago
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damaskus [11]
Well x=1 always unless it tells you other wise so 1+0.5 would equal 1.5 and so after that you keep adding so 1.5 + 0.5 equal 2 so you keep taking the previous answer and adding 0.5 to it
5 0
3 years ago
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statuscvo [17]

Answer:

33.33

Step-by-step explanation:

4 0
2 years ago
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What is the length of BD?
I am Lyosha [343]

Answer:

10\sqrt{3}

Step-by-step explanation:

<u>Trigonometric Ratios </u>

This problem will be solved by the use of a trigonometric ratio called sine because it relates the opposite side of a given angle with the hypotenuse of the triangle.

Selecting the angle of 60° in triangle ABD:

<em>Sine Ratio </em>

\displaystyle \sin 60^\circ=\frac{\text{opposite leg}}{\text{hypotenuse}}

\displaystyle \sin 60^\circ=\frac{BD}{20}

Solving for BD:

\displaystyle BD=20\sin 60^\circ

Since

\sin 60^\circ=\frac{\sqrt{3}}{2}

\displaystyle BD=20\frac{\sqrt{3}}{2}

Simplifying:

\boxed{\displaystyle BD=10\sqrt{3}}

4 0
2 years ago
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