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TEA [102]
3 years ago
5

A giant hummingbird can flap its wings at a rate of 13 flaps per second, how many times

Mathematics
1 answer:
antoniya [11.8K]3 years ago
8 0

Answer:

780 flaps per second

Step-by-step explanation:

just multiply 13×60

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Find the slope of the line passing through the points (-6,2), (0,-6).A 6B 2.C-4/3DOE-3/1
NNADVOKAT [17]

Given data:

The first point given iis (a, b)=(-6,2).

The second point given is (c,d)=(0, -6).

The expression for the slope is,

m=(d-b)/(c-a)

Substitute the given points in the above expression.

m=(-6-2)/(0-(-6))

=(-8)/(6)

=-4/3

Thus, the slope of the line is -4/3, so (C) option is correct.

8 0
1 year ago
A train leaves San Diego at 1:00 pm. A second train leaves the same city in the same direction at 3:00 pm. The second train trav
Soloha48 [4]

Answer:

The speed of the first train is 45 mph and the speed of the second train is 75 mph

Step-by-step explanation:

Let x represent the speed of the first train in mph. Since the second train, is 30 mph faster then the first, therefore the speed of the second train is (x + 30).

The first train leaves at 1:00 pm, therefore at 6:00 pm, the time taken is 5 hours. Therefore the distance covered by the first train at 6:00 pm = x mph * 5 hours = 5x miles

The second train leaves at 3:00 pm, therefore at 6:00 pm, the time taken is 3 hours. Therefore the distance covered by the second train at 6:00 pm = (x + 30) mph * 3 hours = (3x + 90) miles

Since the second train overtakes the first at 6:00 pm, hence:

3x + 90 = 5x

2x = 90

x = 45

Therefore the speed of the first train is 45 mph and the speed of the second train is 75 mph (45 mph + 30 mph).

7 0
3 years ago
Laundry detergent is priced at 20 ounces for $3.40 or 14 ounces for $2.10.what is the the unit rate of the laundry detergent tha
lutik1710 [3]

Answer:

0.17 cents per ounce, which is the 20 ounce

Step-by-step explanation:

3.40 / 20 = 0.17 cents per ounce

2.10/14 = 0.15 cents per ounce

3 0
3 years ago
Read 2 more answers
25. What is the range of the list of numbers 3,22, 16, 8, 34, 7, and 20?
antoniya [11.8K]

Answer:

31

Step-by-step explanation:

The range of a set of data is the difference between the highest and lowest values in the set.

First arrange all the figures in order from the smallest to the largest value

3,7,8,16,20,22,34

Therefore, finding range would be; 34-3 =31

Hope this helps!

7 0
3 years ago
Find the slop and y intercept of (1,5) (-4,0)
Aleksandr-060686 [28]

Answer:

SLOPE: 1

Y-Intercept: (0,4)

Step-by-step explanation:

8 0
3 years ago
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