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dolphi86 [110]
3 years ago
15

I have been stuck on this forever. Please help me

Mathematics
1 answer:
il63 [147K]3 years ago
5 0
2a. speed= distance
---------------
time

60÷69 = 52.1739 miles per hour.



so for the next one with the airplane flies 296 km in 276 min is the same formula.
296/276 = 39.9839 mph.

I couldn't see the first question clear...sorry but apply same formula.
Hoping this will help you
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Help please/////////////////////
Wewaii [24]

i dont understand the question

7 0
2 years ago
Calculaye the perimeter and area of these composite shapes
lora16 [44]

For this case we have that the perimeter of the figure is given by the sum of the lengths of the sides, that is:

14 + 18 + 3 + 4 + 3 + 4 + 3 + 4 + (14-9) + (18-12) = 64

Thus, the perimeter of the figure is 64 centimeters.

Now, we find the area of the figure:

We have that by definition, the area of a rectangle is given by:

A = a * b

Where:

a and b are the sides of the rectangle

We have 4 vertical rectangles from left to right:

A_ {1} = 14 * (18-12) = 14 * 6 = 84 \ cm ^ 2\\A_ {2} = (3 + 3 + 3) * 4 = 9 * 4 = 36 \ cm ^ 2\\A_ {3} = (3 + 3) * 4 = 6 * 4 = 24 \ cm ^ 2\\A_ {4} = 3 * 4 = 12 \ cm ^ 2

Thus, the total area isA_ {t} = 156 \ cm ^ 2

Answer:

The perimeter of the figure is 64 centimeters.

A_ {t} = 156 \ cm ^ 2

4 0
3 years ago
What is the solution set of the equation?
mihalych1998 [28]
It would be 12 (B)
thats i beleive the answer

4 0
2 years ago
11,11,11,12,12,13,14,14,15 find the median
makvit [3.9K]

the median out of the data set is.

<u><em>12.</em></u>

to find the median, you have to,

The median is also the number that is halfway into the set. To find the median, the data should be arranged in order from least to greatest. If there is an even number of items in the data set, then the median is found by taking the mean (average) of the two middle-most numbers.


6 0
3 years ago
Do these two have the correct answers?
Lapatulllka [165]
Yes, both of your answers are correct.

Since Death Valley is below sea level, the hiker increases altitude before stopping at 0 feet.

Percent of increase is given by the formula (amount of change)/(original amount) * 100.  Your work is accurate.
7 0
3 years ago
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