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inn [45]
2 years ago
5

Sally drew a circle with right triangle PRQ inscribed in it, as shown below: The figure shows a circle with points P, Q, and R o

n it forming an inscribed triangle. Side PQ is a chord through the center, and angle R is a right angle. Arc QR measures 40 degrees. If the measure of arc QR is 40°, what is the measure of angle PQR?
20°
40°
50°
70°
Mathematics
1 answer:
MrRa [10]2 years ago
8 0

Answer:

70*

Step-by-step explanation:

we have a right triangle - r is 90*

based on geometric rules: angle RPQ = 20       40 : 2

90 + 20 = 110

110 + x = 180

triangle have 180*

it means that 180 - 110 =

70 *

last answer D

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Answer:

The team can assign field positions to 9 of the 19 players in 181,440 different ways.

Step-by-step explanation:

Since the outfielders (left field, center field, right field) can play any outfield position, the infielders (1st base, 2nd base, 3rd base, short stop) can play any infield position, the pitchers can only pitch, and the catchers can only catch, supposing a certain team has 20 players, of whom 3 are catchers, 4 are outfielders, 6 are infielders, and 7 are pitchers, to determine how many ways can the team assign field positions to 9 of the 19 players, putting each of the 9 selected players in a position he can play, and ensuring that all 9 field positions are filled, the following calculation must be performed:

3 x 7 x 6 x 5 x 4 x 3 x 4 x 3 x 2 = X

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Step-by-step explanation:

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Please explain how you got your answer!!! The dot plots below show the ages of students belonging to two groups of salsa classes
Rudik [331]

Answer:

Group b most likely has a lower mean age of salsa students

Step-by-step explanation:

Arithmetic Mean of the data is the average of a set of numerical values, calculated by adding them together and dividing by the number of terms in the set.

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Here the mean age of the data is addition of the all ages of different students divided by total number of students.

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