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2 years ago

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." id="TexFormula1" title="elect all of the following expressions that are equivalent to 4√5." alt="elect all of the following expressions that are equivalent to 4√5." align="absmiddle" class="latex-formula">select all of the following expressions that are equivalent to 4√5.

1 answer:

STALIN [3.7K]2 years ago

5 0

Answer:

2x - 1.75x.

Step-by-step explanation:

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Which has more sugar 3 parts sugar 4 parts water or 6 parts sugar 7 parts water

Ivenika [448]

Answer:

Neither

Step-by-step explanation:

Even if six is bigger then 3 they each Have A One more part of water.

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2 years ago

How to find the area of congruent shapes

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2 years ago

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Find the estimates of x^2-x-2=3

Julli [10]

Answer:

$x=\frac{1+\sqrt{21}}{2}\approx 2.79\\or\ x=\frac{1-\sqrt{21}}{2}\approx -1.79$

Step-by-step explanation:

Given

Quadratic equation is

$x^2-x-2=3\\x^2-x-5=0$

Roots of the quadratic equation $ax^2+bx+c=0$ are

$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\\$

So, for the given equation roots are

$x=\frac{1\pm\sqrt{(-1)^2-4(1)(-5)}}{2\cdot 1}\\x=\frac{1\pm\sqrt{21}}{2}\\so, x=\frac{1+\sqrt{21}}{2}\approx 2.79\\or\ x=\frac{1-\sqrt{21}}{2}\approx -1.79$

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2 years ago

What's the area of this? PLS HELP

balandron [24]

Answer:

446mm

Step-by-step explanation:

If we box off parts of the area, it makes it easier to solve. I personally broke it into tiny bits:

Upper left box: 16mm

Bigger box (excluding little box): 90mm

Big rectangle: 340mm

Now, add them all together.

Equals 446mm

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2 years ago

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