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3 years ago

What is the difference between Delta x and dx? ...?

1 answer:

6 0

Δx (delta x) is about a secant line, a line between two points representing the rate of change between those two points. That's a "differential" (between the two points).

dx is about a tangent line to one point, representing an instantaneous rate of change. That makes it a "derivative."

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Identify the zeros of the polynomial function N(x)=1/2 (x-1)(x+3).

zhannawk [14.2K]

Answer:

a:x=-3

c:x=1

Step-by-step explanation:

The zeros of a function are the values of x for which the value of the function f(x) becomes zero.

In this problem, we have the following function:

$f(x)=\frac{1}{2}(x-1)(x+3)$

Here we want to find the zeros of the function, i.e. the values of x for which

$f(x)=0$

In order to make f(x) equal to zero, either one of the factors $(x-1)$ or $(x+3)$ must be equal to zero.

Therefore, the two zeros can be found by requiring that:

$x-1=0\\\rightarrow x=+1$

$x+3=0\\\rightarrow x=-3$

So the correct options are

a:x=-3

c:x=1

6 0

3 years ago

What’s the solution to the system 5y=6x-4 and 3y=-6x+20

Elina [12.6K]

Answer:

6x-5y=4

6x+3y=30

Step-by-step explanation:

Move variable to the left

5y=6x-4

Reorder the terms

5y-6x=-4

Change the signs

-6x+5y=-4

Move variable to the left

3y=-6x+20

Reorder the terms

3y+6x=20

3 0

3 years ago

Hii i need help! write the inequality represented by the graph below.

pentagon [3]

95252226!!
0363373
44448

7 0

2 years ago

PQ=20,RS=20 and the measure of ARC PT= 35 Find the measure of arc RS

Oksi-84 [34.3K]

If RS arc is = to the RS central angle then the RS arc would be 20 degrees, but if the RS is on the Circumference then the RS arc would be 40.

4 0

3 years ago

15. The sum of two numbers is 8. The difference of the two numbers is 2.

matrenka [14]

Answer:

3 AND 5

Step-by-step explanation:

LET THE TWO NUMBERS BE X AND Y

THEN

X + Y = 8 …….1

X – Y = 2 …… 2

WE SOLVE SIMULTANOUSLY

SUBTRACTNG EQATION 2 FROM 1

X – X + Y – (-Y) = 8 – 2

Y + Y = 6

2Y = 6

DIVIDING EACH TERM BY 2

2Y/2 = 6/2

Y = 3

THEN PUTTING Y = 3 IN EQUATION 1

X + 3 = 8

X = 8 – 3

X = 5

5 0

3 years ago