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3 years ago

Write a word phrase for 0.3x +5

Mathematics

2 answers:

labwork [276]3 years ago

7 0

Thirty percent of one hundred times a number x plus five

Dmitrij [34]3 years ago

6 0

Five more than the quantity three-tenths of variable x.

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PLS HELP ASAP *50PTS*

vampirchik [111]

Given:

Number = -9.1

To find:

The magnitude (size) of given number.

Solution:

We know that, magnitude of a number is the absolute value of that number.

So, magnitude of -9.1 is

$|-9.1|=9.1$

Because, absolute value of a number is always positive.

Magnitude of -9.1 is 9.1 because $|-9.1|=9.1$ .

Therefore, the correct option is A.

8 0

3 years ago

Read 2 more answers

What is (x^3-20x+16)/(x-4)

Molodets [167]

Answer:

$x^{2} +4x-4$

Step-by-step explanation:

I'm sorry that I cannot show you my work as the equation generator does not support dividing polynomials.

4 0

4 years ago

Read 2 more answers

A population of protozoa develops with a constant relative growth rate of 0.4964 per member per day. On day zero the population

vodka [1.7K]

Answer:

The population size after eight days is about 265

Step-by-step explanation:

This is an example of an exponential growth model. A quantity <em>y</em> that grows or decays at a rate proportional to its size fits in an equation of the form

$\frac{dy}{dt}=ky$

where k is a positive constant. Its solutions have the form

$y=y_{0}e^{kt}$ ,

where $y_{0} =y(0)$ is the initial value of y.

The population size can be calculated by using the below formula:

$P(t)=P(0)e^{kt}$ where $P(0)$ is the population on day zero.

Let t be the time in days,

We know from the information given that:

k = 0.4964 per member per day and

The day zero (t = 0) the population size is 5 (P(0) = 5)

To find the population size after eight days

Substitute P(0) = 5, k=0.4964 in $P(t)=P(0)e^{kt}$

Then

$P(t)=5e^{0.4964\cdot t}$

Now we calculate P(t) when t = 8 days

$P(8) = 5e^{0.4964\cdot 8}\\P(8) = 5e^{3.9712}\\e^{3.9712}=53.04815\dots \\P(8) = 5 \cdot 53.04815\dots\\P(8) = 265.24075\dots \approx 265$

Therefore the population size after eight days is about 265

8 0

3 years ago

1+(2/3)-(-9/2)<br> i don't understand this and i need help

kaheart [24]

Answer:

6.167

Step-by-step explanation:

1 + 2/3 - (-9/2)

1 + 2/3 + 9/2

Taking LCM (1 x 2 x 3)

6/6 + 4/6 + 27/6

6 + 4 + 27/6

37/6

6.167 Ans

6 0

2 years ago

WILL MAKE BRAINLIEST!!!!Complete the system of equations with a linear equation so that the graphs of the equations intersect at

Nina [5.8K]

First, we have to find x- and y-intercepts of given equation.

1. y-intercept is a point (0, y) so substitute x = 0 and calculate:

$y=x^3-3x^2+x-3\\\\y= 0^3-3\cdot0^2+0-3\\\\y=0-0+0-3\\\\\boxed{y=-3}$

y-intercept = (0, -3)

2. x-intercept is a point (or points) (x, 0), so when we substitute y = 0 there will be:

$0= x^3-3x^2+x-3\\\\0=x^2(x-3)+(x-3)\\\\0=(x^2+1)(x-3)\\\\\\x^2+1=0\qquad\vee\qquad x-3=0\\\\x^2+1\text{ always}\ \textgreater \ 0\qquad\vee\qquad x=3\\\\\boxed{x=3}$

x-intercept = (3, 0)

Now, when we have x- and y-intercepts, we can write an equation of a line (graph of the linear function) that passes through this two points:

$A=(3,0)\qquad\qquad B=(0,-3)\\\\\\
y-y_A=\dfrac{y_B-y_A}{x_B-x_A}(x-x_A)\\\\\\y-0=\dfrac{-3-0}{0-3}(x-3)\\\\\\y=\dfrac{-3}{-3}(x-3)\\\\\\y=1(x-3)\\\\\\\boxed{y=x-3}$

Our linear equation is: y = x - 3

5 0

4 years ago