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Law Incorporation [45]
3 years ago
14

A science teacher needs to choose 4 students from a class of 20 to go to the library to do some research. How many different gro

ups can be selected?
A.) 3,060

B.) 104,976

C.) None are correct

D.) 73,440
Mathematics
1 answer:
densk [106]3 years ago
8 0
The number is (20 x 19 x 18 x 17) / (4 x 3 x 2). That's 4,845 . None of the choices is correct.
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Honney bought 2 lemons for Php20.50. How much will she pay if she will buy 7 lemons?
Lunna [17]
Price per lemon= 20.50÷2= 10.25
Price for 7 lemons= 7 * 10.25 =71.75
4 0
3 years ago
Read 2 more answers
An airplane flew at an average speed of 376 miles per hour for 3 3/4 hours. How far did the plane fly?
Sav [38]
The distance is 1410 miles.
The triangle above shows how speed, distance and time are related. D = s x t
S= d/t
T=d/s

8 0
3 years ago
Determine the constant of varlation for the direct variation glven. Rvaries directly with S. When S is 16, R Is 80.​
navik [9.2K]

Answer:

The constant of variation is 5.

Step-by-step explanation:

In direct variation, as y varies directly with x, the standard equation is

y = kx,

where k is the constant of variation.

In your case, we use R and S. R varies directly with S, so we have

R = kS

We know that when S = 16, R is 80, so we plug in those values and solve for k, the constant of variation.

R = kS

80 = k(16)

k = 80/16

k = 5

4 0
3 years ago
Find the slope of the line (0,7), (4,4)
MaRussiya [10]

Answer:

m = - 3/4

Step-by-step explanation:

m = (7-4)/(0-4)

= 3/- 4

= - 3/4

3 0
3 years ago
Guys please help me
stich3 [128]

Answer: (x + [-1], y + [1])

Step-by-step explanation:

      <em>See attached. </em>We can draw, or picture it in our heads, what the reflection would look like. Then we can pick one (or multiple to test) points and see the translation.

      We can also test with a set of points. B', (2, 4) becomes G in the transformation. G is at (1, 5)

      (1 - 2, 5 - 4) -> (-1, 1)

8 0
1 year ago
Read 2 more answers
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