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3 years ago

What is the approximate solution to this equation? x³ = 65.5 x≈4 x≈5 x≈16 x≈21

Mathematics

2 answers:

Orlov [11]3 years ago

8 0

I personally think that it =4

prohojiy [21]3 years ago

5 0

$\sqrt[3]{65.5} = \sqrt[3]{64} \text { (Nearest perfect cube)}$

$\sqrt[3]{64} = 4$

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3 years ago

BD bisects m m Find m

amm1812

The text of the question is not visible in the answering window. I'll reproduce it here:

BD bisects <ABC.

m <ABD= 2.5x + 8.6

m<CBD = 3.5x - 3.4

Find m<ABC

Answer:

$m\angle ABC = 77.2^\circ$

Step-by-step explanation:

We have an angle ABC and a line BD bisecting it.

If an angle is bisected, then the two formed angles are congruent, that is

$m\angle ABD=m\angle CBD$

Substituting the algebraic expressions for both angles:

$2.5x + 8.6=3.5x - 3.4$

Subtracting 8.6 and 3.5x:

$2.5x - 3.5x = -8.6 - 3.4$

Operating:

$-x = -12$

$x = 12$

The two angles are:

$m\angle ABD=2.5x + 8.6=2.5(12) + 8.6=38.6^\circ$

$m\angle CBD=3.5x - 3.4 = 38.6^\circ$

As expected, both angles have the same measure.

The measure of the total angle ABC is twice any of those:

$m\angle ABC = 2*38.6^\circ=77.2^\circ$

$\mathbf{m\angle ABC = 77.2^\circ}$

6 0

3 years ago

Plzz help me A S A P

svlad2 [7]

i think the answer is 24.56

3 0

3 years ago

Need help answer to this? n^2-5=-4????????

dalvyx [7]

The answer is n= -1.

Hope this helps

8 0

3 years ago