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Feliz [49]
2 years ago
12

11. A scuba diver's elevation changed by -12 3/4 feet every minute. This was

Mathematics
1 answer:
Andrei [34K]2 years ago
7 0

Answer:

-8  1/2  ft / min

Step-by-step explanation:

X = second diver rate

  1 1/2 X = -12 3/4

    3/2  X = - 51/4

             X =  - 51/4  * 2/3 = - 102/12 = -8 1/2 ft / min

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BC = 6x + 5 . AC = 98 and AB = 8x + 9 Find BC.
Lina20 [59]

Answer: BC = 41

Step-by-step explanation:

AB + BC = AC

8x + 9 + 6x + 5 = 98

14x + 14 = 98

14x = 84

x = 6

BC = 6x + 5

Substitute 6 for x

BC = 6 (6) + 5

BC = 36 + 5 = 41

Hope it helps!

4 0
3 years ago
Read 2 more answers
At the beginning of an environmental study, a forest covered an area of 1500 km2 . Since then, this area has decreased by 9.8% e
fredd [130]

Answer:

A(t)=(0.902)^t \cdot 1500 [km^2]

Step-by-step explanation:

In this problem, the initial area of the  forest at time t = 0 is

A_0 = 1500 km^2

After every year, the area of the forest decreases by 9.8%: this means that the area of the forest every year is (100%-9.8%=90.2%) of the area of the previous year.

So for instance, after 1 year, the area is

A_1 = A_0 \cdot \frac{90.2}{100}=0.902 A_0

After 2 years,

A_2=0.902 A_1 = 0.902(0.902A_0)=(0.902)^2 A_0

And so on. So, after t years, the area of the forest will be

A(t)=(0.902)^t A_0

And by substituting the value of A0, we can find an explicit expression:

A(t)=(0.902)^t \cdot 1500 [km^2]

8 0
4 years ago
Formal definition to the word “Markup”
Alex_Xolod [135]

Answer: the amount added to the cost price of goods to cover overhead

Step-by-step explanation:

4 0
4 years ago
How can you use the distributive property to check your work when factoring?
Anestetic [448]
A factor is any number that can be divided into another number evenly. When factoring, we look for common factors within a math expression. Factoring is normally used when finding common factors. The beauty of finding common factor is that it allows us to apply the distributive property usually applies multiplication to an existing mathematical expression such as an addition statement. This means that a number that is outside the parenthesis of an addition problem can be multiplied by each of the numbers inside the parenthesis. The opposite case is; a common factor can be factored out and written outside the parenthesis. 
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4 years ago
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Find the measure of each interior angle 3. X У 2x) 3xW Z 4x​
kirza4 [7]

Answer:

s

Step-by-step explanation:

s

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3 years ago
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