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4 years ago

Which ordered pairs are solutions to the inequality x+3y≥−8?

Mathematics

1 answer:

Dima020 [189]4 years ago

6 0

I think the answer would be b

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Find the derivative of the following functions:

DerKrebs [107]

I will only do the first-three. You can repost number 4.

Question 1

f(x) = -x^2 + 10x + 4

dy/dx = -2x + 10

Question 2

f(x) = 20 - x + 2

dy/dx = -1

Question 3

f(x) = ex^4 - 2x^2

dy/dx = e•4x^3 + x^4 - 4x

dy/dx = 4ex^3 + x^4 - 4x

3 0

3 years ago

This table gives a few (x,y)(x,y)left parenthesis, x, comma, y, right parenthesis pairs of a line in the coordinate plane. -28 -

Serhud [2]

Answer:

The y-intercept is y = 2

Step-by-step explanation:

A linear function has the following format:

$y = mx + b$

In which m is the slope and b is the y-intercept, which is the value of y when x = 0.

We are given these three points:

(-28, -54)

(-21, -40)

(-14, -26)

We use two of them to build a system, to find values for m and b.

(-28, -54)

This means that when $x = -28, y = -54$

$y = mx + b$

$-54 = -28m + b$

$28m = b + 54$

$m = \frac{b + 54}{28}$

(-21, -40)

This means that when $x = -21, y = -40$

$y = mx + b$

$-40 = -21m + b$

$-40 = -21\frac{b + 54}{28} + b$

$-40 = \frac{-21b - 1134 + 28b}{28}$

$7b - 1134 = -40*28$

$7b = 14$

$b = \frac{14}{7}$

$b = 2$

The y-intercept is y = 2

7 0

3 years ago

What is the answer to 8-(-9)+(-3)-5-12

Alexus [3.1K]

Answer:

-3

Step-by-step explanation:

as shown in the picture

8 0

3 years ago

NEED HELP WITH A MATH QUESTION

a_sh-v [17]

Answer:

5/75 in my opinion. 75 is total of hot drink

Step-by-step explanation:

3 0

3 years ago

How many solutions does the following system of equations have y=5/2x+2 2y=5x+8

irakobra [83]

Answer:

No solutions.

Step-by-step explanation:

If you normalize the second one by dividing by 2, you get:

y = 5/2x+4.

Now you see that both have the same slope (5/2). They are parallel lines that never intersect.

7 0

4 years ago