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2 years ago

Does anyone know the answer

Mathematics

1 answer:

Alex_Xolod [135]2 years ago

8 0

Answer:x = 12,5

using thales's theorem, we have:

$\frac{15}{15+36}=\frac{20}{6x-7}\\\\ 6x-7=\frac{20.(15+36)}{15}=68\\\\x = \frac{68+7}{6}=12.5$

Step-by-step explanation:

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y = x^{4} - x^{3} - 28x^{2} - 20x + 48 How many possible negative real zeros, positive real zeros, and non-real zeros does this

OleMash [197]

$f(x)= x^{4} - x^{3} - 28x^{2} - 20x + 48$

There are two changes of sign, so there are 2 or 0 possible positive roots.

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3 years ago

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Answer:

a) Pluto, Mercury, Mars, Venus, Earth, Neptune, Uranus, Saturn, Jupiter

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Step-by-step explanation:

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a) least-to-greatest diameter, the order is ...

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b) The ratio of diameters of Jupiter and Pluto is ...

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_____

<em>Additional comment</em>

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2 years ago

The population in a small city increased from 1250 people to 2780 people. What is the percent of increase in the number of peopl

Zarrin [17]

<h3>Answer: Choice B) 122%</h3>

==========================================

Work Shown:

A = 1250 is the initial amount

B = 2780 is the new amount

C = percent change = unknown for now

The formula to use is

C = [ (B-A)/A ] * 100

to calculate the percent change.

Basically we calculate the change (B-A) first and then divide that over the original amount A to compute the decimal form of the answer, which is then converted over to percentage form. The "100" tacked on at the end is what converts from decimal to percent form.

---------

C = [ (B-A)/A ] * 100

C = [ (2780 - 1250)/1250 ] * 100

C = (1530/1250)*100

C = 1.224 * 100

C = 122.4%

C = 122%

---------

The positive C value indicates we have a percent increase. If C were negative, then we'd have a percent decrease.

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2 years ago

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Marysya12 [62]

The remaining weight of the empty bottle is 0.5 because each third of the bottle weighs 2.5 pounds and of the remaining juice and the bottle was 3 pounds 2.5 subtracted from 3 is 0.5

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3 years ago

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Ahat [919]

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3 years ago