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Karolina [17]
3 years ago
13

If y = 4x3 + 4x and dx dt = 3, find dy dt when x = 2.

Mathematics
1 answer:
Eva8 [605]3 years ago
7 0
Dy/dx = dy/dt / dx/dt

dy/dx = 12x^2 + 4 

when x = 2 , dydx = 52

52 = dy/dt / 3

so dy/dt =  156 (answer)
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What is the answer to all the q's <br> ******WILL GIVE BRAINLIST******
olganol [36]

Answer:

1. F

2. T

3. T

4. T

Step-by-step explanation:

Let's break down the definitions.

Quadrilateral - A polygon with 4 sides

Square - A quadrilateral with 4 equal sides and 90 degree angles

Rectangle - A quadrilateral with 4 sides with opposite sides that are congruent and have 90 degree angles

Parallelogram - A quadrilateral with 4 sides with opposite sides that are congruent and do not have 90 degree angles

Rhombus - A quadrilateral with 4 equal sides but does not have 90 degree angles

Now let's look at the questions.

Does every 4 sided figure have equal sides? - No

Is a rectangle with 4 equal sides a square? - Yes

Is every parallelogram with 4 equal sides a parallelogram? - Yes

Is every 4 equal sided figure a figure with opposite sides that are equal? - Yes

5 0
3 years ago
Read 2 more answers
Answer correctly and get brainliset
Klio2033 [76]
The answer is the mean is 8. The range is equal to the largest number, 10 minus the smallest number, 5. It equals 5, so d is wrong. The mean is all of the values added together, 80, divided by the number of values, 10. So, 8. The median is the middle which is between 7 and 8, so 7.5. Five has no dots.
6 0
3 years ago
The ages of the members of a gym have a mean of 4747 years and a standard deviation of 1111 years. what can you conclude from​ c
Bond [772]

Chebyshev came up with the limits on how much or how many of the data must lie close to the mean. In specific for any positive k, the proportion of the data that lies within k standard deviations of the mean is at least: <span>

1 - 1/k² 

<span>In this problem  the mean is 47 yrs therefore:

(47 – 17.3) = 29.7 = (76.7 - 47) </span></span>

The value of k is calculated using the formula:<span>

29.7 / 11 = 2.7 = k</span>

So the % of gym members aged between 19.4 and 76.6 is: <span>

1 - 1 / (2.6)² = 0.863 = 86.3 %</span>

 

<span>Therefore 86.3% of the gym members are aged between 19.4 and 76.6</span>

5 0
3 years ago
What is the value of x in the equation 5(2x - 7) = 15x -10
ASHA 777 [7]
10x - 35 = 15x - 10
-35 = 5x -10
-25 = 5x
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The value of x is -5.
3 0
3 years ago
One number is 6 more than another. Twice the larger number is 5 times the smaller.
tresset_1 [31]

Answer:

The smaller number is 4

Step-by-step explanation:

Larger number = x

Smaller number = y

Write 2 equations

y + 6 = x

2x = 5y

Substitute x in the first equation to the second equation

2(y + 6) = 5y

Multiply 2(y + 6)

2y + 12 = 5y

Subtract 2y from both sides of the equation

12 = 3y

Divide both sides of the equation by 3

y = 4

x = y + 6 = 4 + 6 = 10

The smaller number is 4

Hope this helps :)

3 0
3 years ago
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