All categories

3 years ago

Which equation represents a proportional relationship?

Mathematics

1 answer:

faust18 [17]3 years ago

8 0

Y=4x+1 is the answer to your question

You might be interested in

(7a-b+3) - (-2a-8b+8)

Mumz [18]

(7a-b+3)-(-2a-8b+8)
Apply plus/minus rule.
-(-a)= a and -(a)=-a
we get
(7a-b+3)-(-2a-8b+8)= 7a-b+3+2a+8b-8
Add like terms
=9a+7b-5

Answer: 9a + 7b - 5

5 0

3 years ago

6x5x7xfreepoints5x7x8x6x45x6x8x7x55x6x6x6x6x0=

Liula [17]

Answer: 0

Yurrrrrrr

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Find a positive number for which the sum of it and its reciprocal is the smallest (least) possible. Let x be the number and let

Allisa [31]

Answer:

$S(x) = x + \frac{1}{x}$ --- Objective function

Interval = $\{x:x=1\}$

Step-by-step explanation:

Given

Represent the number with x

The required sum can be represented as:

$x + \frac{1}{x}$

Hence, the objective function is:

$S(x) = x + \frac{1}{x}$

To get the the interval, we start by differentiating w.r.t x

<em>Using first principle, this gives:</em>

$S'(x) = 1 - \frac{1}{x^2}$

Equate S'(x) to 0 in order to solve for x

$0 = 1 - \frac{1}{x^2}$

Subtract 1 from both sides

$0 -1 = 1 -1 - \frac{1}{x^2}$

$-1 = - \frac{1}{x^2}$

Multiply both sides by -1

$1 = \frac{1}{x^2}$

Cross Multiply

$x^2 * 1 = 1$

$x^2 = 1$

Take positive square root of both sides because x is positive

$\sqrt{x^2} = \sqrt{1$

$x = 1$

Representing x using interval notation, we have

Interval = $\{x:x=1\}$

To get the smallest sum, we substitute 1 for x in $S(x) = x + \frac{1}{x}$

$S(1) = 1 + \frac{1}{1}$

$S(1) = 1 + 1$

$S(1) = 2$

<em>Hence, the smallest sum is 2</em>

3 0

4 years ago

Please help!!! thank u!!!!

pav-90 [236]

To do this, multiply each of the four elements in matrix D by -1/2 or -0.5:

| 9 8 |
| -7 -4 |

6 0

4 years ago

How to solve a teo step inequality

prohojiy [21]

Answer:

Use the order of operations in reverse and remember that dividing or multiplying by a negative reverses the inequality

Explanation:

The order of operations is PEMDAS in reverse it is PESADM ( if you lose your cell phone in PE you are a SAD M(am)

Remember multiply or dividing by a negative reverses the value of the quality being divided or multiplied.

Just do the order of operations in reverse as in solving an equation always doing the opposite. Then remember to reverse the inequality sign whenever the inequality is multiplied or divided by a negative.

Step-by-step explanation:

8 0

3 years ago