All categories

2 years ago

find the derivative with respect to x of f(x)=4x , and use it to find the equation of the tangent line to y=4x at x= 5

Mathematics

1 answer:

seropon [69]2 years ago

4 0

Answer:

F(x)=4X X=5

F(5)=4X

4(5)

Y=4(20)

Y=80

You might be interested in

2-(-4)/0-2<br><br>What is the answer?

Gnoma [55]

Answer:

the would be m=4

Step-by-step explanation:

7 0

1 year ago

Selina is playing a game that uses the spinner below.

MatroZZZ [7]

Answer:

A) 12.5%

B) 50%

C) 50%

Step-by-step explanation:

For A, 7 is one of the 8 possibilities (1/8). 1/8 of 100 is 12.5, so your chance of spinning a 7 is 12.5%

For B, even numbers are 4/8 or 1/2 of your options. 1/2 of 100 is 50, so your chance of spinning an even number is 50%

For C, there are 4 out of 8 numbers that are prime (2,3,5, & 7).

4/8 or 1/2 of 100 is 50, so your chance of spinning a prime number is 50%

hope this helps

4 0

3 years ago

Use the equation 135⋅42=5,670 and what you know about fractions, decimals, and place value to explain how to place the decimal p

Jobisdone [24]

7x + 4 = 9

7x + 4 = 19

2x = 19 - 4

7x = 15

x= 15 – 7

7 0

2 years ago

The spring concert at a certain high school sold 155 tickets. Students were charged $4 each and adults $8 each. The income from

garik1379 [7]

Answer:

Step-by-step explanation: 85 students and 80 adults

6 0

2 years ago

For online courses, like those in eCore, there is a positive correlation between the amount of time spent in the course and the

Troyanec [42]

Answer:

Regression Line is given by,

y = 22.909 + 0.209 x

The course grade of a student in the course who spent an average of 103 minutes in the course each week is: 22.909 + 0.209 × 103 = 44.436

Step-by-step explanation:

The equation of Regression equation is of the form of:

y = a + bx

where, a is intercept and b is slope

The formula for a and b is given by,

$a=\frac{\sum Y \sum X^2-\sum X \sum XY}{n\sum X^2-(\sum X)^2}\\ and, b = \frac{n\sum XY -\sum X \sum Y}{n\sum X^2-(\sum X)^2}$

Here, ∑X = 1149.8, ∑Y = 377.2, ∑XY = 93115.95, ∑X² = 320246.72

Thus, a = 22.909

and b = 0.209

Thus, Regression Line is given by,

y = 22.909 + 0.209 x

Thus, The course grade of a student in the course who spent an average of 103 minutes in the course each week is: 22.909 + 0.209 × 103 = 44.436

Now plotting these line:

6 0

2 years ago