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timama [110]
3 years ago
12

15=7-|2x| Solve for x in this absolute value equation.

Mathematics
2 answers:
DIA [1.3K]3 years ago
8 0
15=7-|2x|\\
-|2x|=8\\
|2x|=-8\\
x\in\emptyset
ivann1987 [24]3 years ago
6 0
7-|2x|=15\ \ \ \ |subtract\ 7\ from\ both\ sides\\\\-|2x|=8\\\\|2x|=-8-FALSE\\\\x\in\O\ because\ |a|\geq0\ for\ each\ a\in\mathbb{R}

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What's the surface area ratio &amp; the volume ratio??<br><br> please help me ASAP!!
Ulleksa [173]

Answer:

Step-by-step explanation:

Volumes of two spheres A and B = 648 cm³ and 1029 cm³

Things to remember:

1). Scale factor of two objects = \frac{r_1}{r_2} [r_1 and r_2 are the radii of two circles]

2). Area scale factor = \frac{(r_1)^2}{(r_2)^2}

3). Volume scale factor = \frac{(r_1)^3}{(r_2)^3}

Volume scale factor Or Volume ratio = \frac{V_A}{V_B}

                         \frac{(r_1)^3}{(r_2)^3}= \frac{648}{1029}

                         \frac{r_1}{r_2}=\sqrt[3]{\frac{648}{1029} }

                         \frac{r_1}{r_2}=\frac{6(\sqrt[3]{3})}{7(\sqrt[3]{3})}

                        \frac{r_1}{r_2}=\frac{6}{7}

Therefore, scale factor = \frac{r_1}{r_2}=\frac{6}{7}

                                      ≈ 6 : 7

Area scale factor Or area ratio = (\frac{r_1}{r_2})^2=(\frac{6}{7})^2

                                                   = \frac{36}{49}

                                                   ≈ 36 : 49

Volume scale factor or Volume ratio = \frac{648}{1029}

                                                             = \frac{216}{343}

                                                             ≈ 216 : 343

4 0
3 years ago
C
ElenaW [278]
Hold on let me go do my research I’ll brb .
4 0
3 years ago
Which is greater 13.6 or 13.06
slava [35]
13.6 is greater bcuz it is 13.60 not 13.06
4 0
3 years ago
Read 2 more answers
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aleksklad [387]

Answer:

Let

x = number of yards mowed

The domain of the function is

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If we multiply the inequality by 25, we get

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Which is the same as

125  ≤  f(x)  ≤ 500

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Is y^2+25y+200 a perfect trinomial
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