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Lubov Fominskaja [6]

3 years ago

11

Describe a real life sittuation that can be modeled by the equation 2x plus 5 equals 10

1 answer:

jeka57 [31]3 years ago

8 0

There are 2 cars 5 people in each car. What is the total amount of people in the cars.
Answer:10
2x5=10

There are 2 teachers, 5 students in each class. How many students would there be if the teachers combined the two classes together.
Answer:10
2x5=10

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2x + y = -4<br> x + 4y = 12<br> Solve both for y

geniusboy [140]

Answer: y=−6x

Step-by-step explanation: Add -2x to both sides.

7 0

3 years ago

If y= 3x + 6, what is the minimum value of (x^3)(y)?

Rainbow [258]

Answer:

Given the statement: if y =3x+6.

Find the minimum value of $(x^3)(y)$

Let f(x) = $(x^3)(y)$

Substitute the value of y ;

$f(x)=(x^3)(3x+6)$

Distribute the terms;

$f(x)= 3x^4 + 6x^3$

The derivative value of f(x) with respect to x.

$\frac{df}{dx} =\frac{d}{dx}(3x^4+6x^3)$

Using $\frac{d}{dx}(x^n) = nx^{n-1}$

we have;

$\frac{df}{dx} =(12x^3+18x^2)$

Set $\frac{df}{dx} = 0$

then;

$(12x^3+18x^2) =0$

$6x^2(2x + 3) = 0$

By zero product property;

$6x^2=0$ and 2x + 3 = 0

⇒ x=0 and x = $-\frac{3}{2} = -1.5$

then;

at x = 0

f(0) = 0

and

x = -1.5

$f(-1.5) = 3(-1.5)^4 + 6(-1.5)^3 = 15.1875-20.25 = -5.0625$

Hence the minimum value of $(x^3)(y)$ is, -5.0625

3 0

4 years ago

Find the rate of change

andrezito [222]

Step-by-step explanation:

(x1,y1) = (-1,-1)

(x2,y2) = (2,-2)

m = (y2 - y1)/(x2 - x1)

m = (-2 + 1)/(2 + 1)

m = -1/3

Option → C

8 0

3 years ago

Find the slope of the line through each pair of points (11, 18) (20, 12)

JulijaS [17]

Answer:

2/3

Step-by-step explanation:

We can find the slope by using the slope formula

m = ( y2-y1)/(x2-x1)

= ( 12-18)/(20 -11)

= -6/-9

= 2/3

3 0

3 years ago

G(4) =????<br> Can Someone please help Me on this question

melomori [17]

Answer:

when x=4, the value of y is the answer.

when x=4,we can see that the value of y is 1

8 0

3 years ago