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3 years ago

Which statement conveys the idea in the most concise and precise manner?

Mathematics

2 answers:

yawa3891 [41]3 years ago

8 0

Answer:

Step-by-step explanation:

THE ANSWER IS A BECAUSE ITS THE MOST TO THE POINT (PRECISE) OPTION STATING WHAT IS NEEDED ONLY.

HOPE IT HELPS YOU !!

solong [7]3 years ago

7 0

Answer:

Step-by-step explanation:

Choice A is directly stating what the couple is doing, without any extra information needed.

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Given:

I am Lyosha [343]

Answer:

m∠QPR = 20°

Step-by-step explanation:

If we make a sketch of the triangle, it will be observed, that line R bisects angle P.

Considering Triangle, ΔQPS;

∠QPS=107∘

Considering triangle, QPR;

∠QPR=9x-115∘

Considering triangle, RPS;

∠RPS=4x+27∘

Thus, ∠RPS + ∠QPR = ∠QPS

4x+27° + 9x-115° = 107°

13x - 88° = 107∘

13 x = 107∘ + 88∘

13x = 195°

x = 195°/13

x = 15°

m∠QPR = 9x - 115°

= (9 x 15) - 115°

= 135° - 115°

= 20°

Therefore, m∠QPR = 20°

6 0

3 years ago

The sum of a number and its opposite equals zero

Andru [333]

Answer:

Yes,its true

Step-by-step explanation:

<h2>__________________</h2><h2>Consider, a number x</h2>

<h2>as per question</h2>

6 0

3 years ago

Among 320 randomly selected airline travelers, the mean number of hours spent travelling per year is 24 hours and the standard d

Ostrovityanka [42]

The margin of error of the random selection is 0.29

The given parameters are:

$n = 320$ --- the sample size

$\sigma = 2.9$ --- the standard deviation

$\bar x = 24$ --- the mean

$\alpha = 90\%$ --- the confidence level.

The margin of error (E) is calculated as follows:

$E = z \times \sqrt{\frac{\sigma^2}{n}}$

So, we have:

$E = z \times \sqrt{\frac{3.2^2}{320}}$

$E = z \times \sqrt{\frac{10.24}{320}}$

The z-value for 90% confidence level is 1.645.

Substitute 1.645 for z

$E = 1.645 \times \sqrt{\frac{10.24}{320}}$

$E = 1.645 \times \sqrt{0.032}$

Take square roots

$E = 1.645 \times 0.1789$

Multiply

$E = 0.2943$

Approximate

$E = 0.29$

Hence, the margin of error is 0.29