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schepotkina [342]
2 years ago
5

Help me please. What is (2a+8) + (4a +5)

Mathematics
2 answers:
Rom4ik [11]2 years ago
8 0

Answer:

6a + 13

Step-by-step explanation:

2a + 4a = 6a

8 + 5 = 13

6a + 13

Nutka1998 [239]2 years ago
6 0

Answer: 6a+13

Step-by-step explanation:

2a+8+4a+5

2a+13+4a

now combine like terms:

2a+13+4a=

6a+13

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A sports tournament has d teams. Each team has 16 players . Using, write an expression for total number of players in the tourna
Vilka [71]

Answer:

16d

Step-by-step explanation:

multiply 16 by d as there are 16 players for each team

8 0
3 years ago
Marine ecologists estimate the reproduction curve for swordfish in a fishing ground to be f(p) = −0.01p2 + 9p, where p and f(p)
Nimfa-mama [501]

Answer:

The population that gives the maximum sustainable yield is 45000 swordfishes.

The maximum sustainable yield is 202500 swordfishes.

Step-by-step explanation:

Let be f(p) = -0.01\cdot p^{2}+9\cdot p, the maximum sustainable yield can be found by using first and second derivatives of the given function: (First and Second Derivative Tests)

First Derivative Test

f'(p) = -0.02\cdot p +9

Let equalize the resulting expression to zero and solve afterwards:

-0.02\cdot p + 9 = 0

p = 450

Second Derivative Test

f''(p) = -0.02

This means that result on previous part leads to an absolute maximum.

The population that gives the maximum sustainable yield is 45000 swordfishes.

The maximum sustainable yield is:

f(450) = -0.01\cdot (450)^{2}+9\cdot (450)

f(450) =2025

The maximum sustainable yield is 202500 swordfishes.

6 0
3 years ago
Brand A costs $46.29, and brand B costs $42.8. what is the difference in the cost of brand A and B.
allsm [11]
Brand A - Brand B = the difference

$46.29 - $42.8 = $3.49

Answer: $3.49
8 0
3 years ago
The water level was -4 feet before rainy season after rainy season the water level was 4 feet by how much did the water level ch
Helen [10]

After rainy season it grew by eight feet

7 0
3 years ago
What is the y-intercept of the graph of y = 2.5x?
iragen [17]
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Substitute a 0 in for x to find the y-intercept
4 0
3 years ago
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