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dedylja [7]
2 years ago
7

Use the ALEKS calculator to write 47/21 as a decimal rounded to the nearest tenth.​

Mathematics
2 answers:
quester [9]2 years ago
3 0

Answer:

2.2

Step-by-step explanation:

47/21 = 2.238095

round to tenth = 2.2

tresset_1 [31]2 years ago
3 0

Answer:

2.2 would be the answer. :)))

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3x^2 + 4x = -8<br> solve using quadratic formula
Firdavs [7]

Use the quadratic equation to solve this (image of the quadratic equation is below)

Remember that quadratic functions are set up like so:

ax^{2} +bx +c = 0

To make the equation 3x² + 4x = -8 into a quadratic function you must bring -8 to the left side of the equation so it equals zero. To do this add 8 to both sides

3x² + 4x + 8= -8 + 8

3x² + 4x + 8 = 0

That means that in this equation...

a = 3

b = 4

c = 8

^^^Plug these numbers into the quadratic equation and solve  (Keep in mind that +/- is ± )

\frac{-4+/-\sqrt{(4)^{2}-4(3)(8)}}{2(3)}

\frac{-4+/-\sqrt{16-96}}{6}

\frac{-4+/-\sqrt{-80}}{6}

^^^There is no real solution to this equation. You must have an imaginary solution

\frac{-4+/-i\sqrt{80}}{6}

Simplify

\frac{-2+/-2i \sqrt{5}}{3}

Hope this helped!

~Just a girl in love with Shawn Mendes

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A plane intersects a rectangular pyramid horizontally as shown. Describe the cross-section. A) circle B) rectangle C) trapezoid
Paladinen [302]
A plane cuts horizontally across a rectangular pyramid will always be a rectangle. (Answer B)
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Rewrite the expression in z to the n power. The expression I was given is: 1 over z to the negative 1 half power.
12345 [234]

Answer:

The equivalent expression is;

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Step-by-step explanation:

The given expression is:


\frac{1}{z^{-\frac{1}{2} }}

Recall that:

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