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3 years ago

Which triangle is congruent to PQR?

Mathematics

1 answer:

Ymorist [56]3 years ago

8 0

DEF is congruent to PQR because they have the same shape and also if you do reflection over x axis it would be DEF

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I don't know which one it is because it could be l or Mabey m or maybe maybe n ooo or I could be o I don't know

MaRussiya [10]

It's m. All you have to do is distribute

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3 years ago

Which of the following pairs of lines are not parallel?

goldfiish [28.3K]

Answer: Not sure

Step-by-step explanation: A is wrong because they are parallel in one is on the top to the right and 1 is on the bottom. sorry thats all i know :(

7 0

3 years ago

3-^1 x (4 x 6) x 2-^3

xeze [42]

$\huge{ \boxed{ \mathbf{ \blue{Problem:-}}}}$

$\bold{ {3}^{ - 1 \ } (4 \times 6) \times {2}^{ - 3} }$

$\huge{ \boxed{ \bf{ \blue{Solution:-}}}}$

$\bold{ {3}^{ - 1}(4 \times 6) \times {2}^{ - 3} }$

$= \bold{ \frac{1}{3}^{1} (4 \times 6) \times { \frac{1}{2}^{3} } }$

$= \bold{ \frac{1}{3} \times 24 \times \frac{1}{8} }$

$\bold{= 1}$

<h3>〜Hope it's helpful</h3>

4 0

3 years ago

Read 2 more answers

Find the perimeter of the figure. Round your answer to the nearest hundredth. RIGHT ANSWER!!!!

pshichka [43]

Perimeter of figure= Perimeter of parallelogram(-one side) + Perimeter of semicircle
= 28 inches + 12.5 inches
= 40.5 inches

6 0

3 years ago

Given a mean earth radius of 20,906,000 ft, and an observation latitude of n 42 degrees, what is the arc distance of one second

murzikaleks [220]

Answer:

arc second of longitude: 75.322 ft
arc second of latitude: 101.355 ft

Explanation:

The circumference of the earth at the given radius is ...

2π(20,906,000 ft) ≈ 131,356,272 ft

If that circumference represents 360°, as it does for latitude, then we can find the length of an arc-second by dividing by the number of arc-seconds in 360°. That number is ...

(360°/circle)×(60 min/°)×(60 sec/min) = 1,296,000 sec/circle

Then one arc-second is

(131,356,272 ft/circle)/(1,296,000 sec/circle) = 101.355 ft/arc-second

Each degree of latitude has the same spacing as every other degree of latitude everywhere. So, this distance is the length of one arc-second of latitude: 101.355 ft.

_____

Comment on these distance measures

We consider the Earth to have a spherical shape for this problem. It is worth noting that the measure of one degree of latitude is almost exactly 1 nautical mile--an easy relationship to remember.

3 0

3 years ago