3 years ago

(MULTIPLE CHOICE QUESTION)

Mathematics

2 answers:

Dmitrij [34]3 years ago

6 0

Answer:

I believe the last is does help while the rest don't help.

Step-by-step explanation:

The first only marks O and M

The second uses O and M and only finds 2 unrelated points.

The third uses O and M to find the other 3 points

Flura [38]3 years ago

4 0

Answer: i think it’s the last one

Step-by-step explanation:

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Divide mixed numbers(no decimal answers)

cestrela7 [59]

Answer:

$\\\frac{9}{10}$ NOT 100% sure! If its not this I think its $\frac{22}{45}$

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Archy [21]

Supplementary = 180°
Complementary = 90°

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Hope this Helps!!

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3 years ago

The director of the library believes that 14% of the library's collection is checked out. If the director is right, what is the

Ksivusya [100]

Answer: 0.2643

Step-by-step explanation:

Let p be the population proportion and $\hat{p}$ be the sample proportion .

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$z=\dfrac{0.13-0.14}{\sqrt{\dfrac{0.14(1-0.14)}{478}}}\\\\=-0.630087269176\approx-0.63$

The required probability ( using z-table ):-

$P(z$

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3 years ago

Convert 86 to a z-score

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Answer:

Step-by-step explanation:--0.9

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2 years ago

Find the unknown angle measure.

spin [16.1K]

Answer:

x=80

Step-by-step explanation:

The sum of interior angles in a quadrilateral is 360°

the square represents a right angle= 90 degrees

124+66+90=280

360-280=80

x=80

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