y + 8 < -2. the inequality is... HELPP

Answer:

u should better search the google or this site www.edkasa.edu.pk u will defiantly find the answer.

Answer:

OOk

Step-by-step explanation:

Answer:

30% increase

Step-by-step explanation:

percentage increase is calculated as

\(\frac{increase}{original}\) × 100%

increase = $35.10 - $27 = $8.10 , then

percentage increase = \(\frac{8.10}{27}\) × 100% = 0.3 × 100% = 30%

Answer:

Step-by-step explanation:

step 1:       35.10-27 =8.1

step 2:       8.1/27 x 100 = 30%

so therefore = 30% increase

Answer:

blue 7.3

Step-by-step explanation:

Answer:

7.3

Step-by-step explanation:

There are 7 groups with 10 parts in each, 7 complete rows are filled in. 3 are left in the last row. This means that there are 7 wholes with 3 left over. 7.3

Answer: B

Step-by-step explanation: the value of it is 5 its simple

Answer:

Step-by-step explanation:

Here you go mate

Step 1

-2n-5=17  Equation/Question

Step 2

-2n-5=17  Simplify

-2n-5=17

Step 3

-2n-5=17  subtract 5

-2n=-22

Step 4

-2n=-22  Divide

answer

n=-11

Hope this helps

Answer:

3:20

Step-by-step explanation:

6000:40,000

find HCF (2000)

divide both sides by 2000

3:20

Functions can be used to model real life scenarios

The function is given as:

\(\mathbf{V(t) = -t^3 + t^2 + 12t}\)

(a) Sketch V(t)

See attachment for the graph of \(\mathbf{V(t) = -t^3 + t^2 + 12t}\)

(b) The reasonable domain

t represents the number of weeks.

This means that: t cannot be negative.

So, the reasonable domain is: \(\mathbf{[0,\infty)}\)

(c) Average rate of change from t = 0 to 2

This is calculated as:

\(\mathbf{m = \frac{V(a) - V(b)}{a - b}}\)

So, we have:

\(\mathbf{m = \frac{V(2) - V(0)}{2 - 0}}\)

\(\mathbf{m = \frac{V(2) - V(0)}{2}}\)

Calculate V(2) and V(0)

\(\mathbf{V(2) = (-2)^3 + (2)^2 + 12 \times 2 = 20}\)

\(\mathbf{V(0) = (0)^3 + (0)^2 + 12 \times 0 = 0}\)

So, we have:

\(\mathbf{m = \frac{20 - 0}{2}}\)

\(\mathbf{m = \frac{20}{2}}\)

\(\mathbf{m = 10}\)

Hence, the average rate of change from t = 0 to 2 is 20

(d) The instantaneous rate of change using limits

\(\mathbf{V(t) = -t^3 + t^2 + 12t}\)

The instantaneous rate of change is calculated as:

\(\mathbf{V'(t) = \lim_{h \to \infty} \frac{V(t + h) - V(t)}{h}}\)

So, we have:

\(\mathbf{V(t + h) = (-(t + h))^3 + (t + h)^2 + 12(t + h)}\)

\(\mathbf{V(t + h) = (-t - h)^3 + (t + h)^2 + 12(t + h)}\)

Expand

\(\mathbf{V(t + h) = (-t)^3 +3(-t)^2(-h) +3(-t)(-h)^2 + (-h)^3 + t^2 + 2th+ h^2 + 12t + 12h}\)\(\mathbf{V(t + h) = -t^3 -3t^2h -3th^2 - h^3 + t^2 + 2th+ h^2 + 12t + 12h}\)

Subtract V(t) from both sides

\(\mathbf{V(t + h) - V(t)= -t^3 -3t^2h -3th^2 - h^3 + t^2 + 2th+ h^2 + 12t + 12h - V(t)}\)

Substitute \(\mathbf{V(t) = -t^3 + t^2 + 12t}\)

\(\mathbf{V(t + h) - V(t)= -t^3 -3t^2h -3th^2 - h^3 + t^2 + 2th+ h^2 + 12t + 12h +t^3 - t^2 - 12t}\)

Cancel out common terms

\(\mathbf{V(t + h) - V(t)= -3t^2h -3th^2 - h^3 + 2th+ h^2 + 12h}\)

\(\mathbf{V'(t) = \lim_{h \to \infty} \frac{V(t + h) - V(t)}{h}}\) becomes

\(\mathbf{V'(t) = \lim_{h \to \infty} \frac{ -3t^2h -3th^2 - h^3 + 2th+ h^2 + 12h}{h}}\)

\(\mathbf{V'(t) = \lim_{h \to \infty} -3t^2 -3th - h^2 + 2t+ h + 12}\)

Limit h to 0

\(\mathbf{V'(t) = -3t^2 -3t\times 0 - 0^2 + 2t+ 0 + 12}\)

\(\mathbf{V'(t) = -3t^2 + 2t + 12}\)

(e) V(2) and V'(2)

Substitute 2 for t in V(t) and V'(t)

So, we have:

\(\mathbf{V(2) = (-2)^3 + (2)^2 + 12 \times 2 = 20}\)

\(\mathbf{V'(2) = -3 \times 2^2 + 2 \times 2 + 12 = 4}\)

Interpretation

V(2) means that, 20 people were infected after 2 weeks of the virus spread

V'(2) means that, the rate of infection of the virus after 2 weeks is 4 people per week

(f) Sketch the tangent line at (2,V(2))

See attachment for the tangent line

The slope of this line is:

\(\mathbf{m = \frac{V(2)}{2}}\)

\(\mathbf{m = \frac{20}{2}}\)

\(\mathbf{m = 10}\)

The slope of the tangent line is 10

(g) Estimate V(2.1)

The value of 2.1 is

\(\mathbf{V(2.1) = (-2.1)^3 + (2.1)^2 + 12 \times 2.1}\)

\(\mathbf{V(2.1) = 20.35}\)

(h) The maximum number of people infected at the same time

Using the graph, the maximum point on the graph is:

\(\mathbf{(t,V(t) = (2.361,20.745)}\)

This means that:

The maximum number of people infected at the same time is approximately 21.

The rate of infection at this point is:

\(\mathbf{m = \frac{V(t)}{t}}\)

\(\mathbf{m = \frac{20.745}{2.361}}\)

\(\mathbf{m = 8.79}\)

The rate of infection is 8.79 people per week

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Answer:

Step-by-step explanation:

f(x)=3x+15

let  f(x)=y

y=3x+15

flip x and y

x=3y+15

3y=x-15

y=1/3 x-5

or f^{-1}x=1/3 x-5

Answer:

5/2

Step-by-step explanation:

duh

Answer:

the answer is 5/2 witch is equal to 2.5

Step-by-step explanation:

you have to divide the total amount of cookies by the total amount of people so 5 divided by 2 a.k.a 5/2 so that is your answer

your welcome

can i please have brainliest

Answer:

C- The size of the initial water sample, in gallons.

Step-by-step explanation:

The inverse of the equation is determined as \(y = \log_{6}(-3x)\).

option D is the correct answer.

The inverse of the equation is calculated by applying the following method;

The given equation;

y = - 6ˣ/3

The inverse of the equation is calculated as;

multiply through by 3

\(-3x = 6^y\)

Take the logarithm of both sides of the equation with base -6:

\(\log_{6}(-3x) = y\)

Finally, replace y with x to obtain the inverse equation as follows;

\(y = \log_{6}(-3x)\)

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If lines m and n are parallel, then the value of x must be 4.

If lines m and n are parallel, then the measures of the angles in the correspondent quadrants must be the same ones.

Here we can see that the two angles are in the third quadrant, thus, these angles have the same measure. Then we can write this as:

6x² = 96

Now we can solve this for x, we will get:

x² = 96/6

x² = 16

x = √16

x = 4

That is the value of 4.

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Considering the two parallel lines cut by the transversal, the measure of angle 1 is given as follows:

C. 105º.

The parallel lines in this problem are as follows:

Line 1 and Line 2.

The transversal line that crosses both parallel lines is:

Line 3.

Angles 1 and 5 are supplementary, meaning that the sum of their measures is of 180º, hence:

<1 + <5 = 180º.

Angles 4 and 5 are alternate exterior angles, as they are on opposite sides of different parallel lines relative to the same transversal, hence they are congruent, that is, they have the same measure.

The sum of their measures is of 150º, hence:

<4 + <5 = 150º.

They have the same measure, hence:

<5 + <5 = 150º

2<5 = 150º

<5 = 150º/2

<5 = 75º.

Then the measure of angle 1 is calculated as follows:

<1 + <5 = 180º.

<1 + 75º = 180º

<1 = 180º - 75º

<1 = 105º.

Which means that option C is correct.

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The expression for the perimeter is P = 12x - 16

The given parameters are

Length = 3x + 1

Width = 3x - 9

The perimeter is calculated as

P = 2 * (Width + Length)

So, we have

P = 2 * (3x + 1 + 3x - 9)

Evaluate

P = 2* (6x - 8)

Expand

P = 12x - 16

Hence, the expression for the perimeter is P = 12x - 16

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Answer:

I think it would be considered 1

Step-by-step explanation:

If you have a fraction that has the same integer for the numerator and denominator, that fraction would equal to 1 because the fraction is completed. As an example, 5/5 is equal to one because there is 5 pieces of the fraction needed to complete it, and there's and available 5. Meaning that there's 5 out of 5 pieces needed to create a whole number which would be 1.

Decimal form: .2 + .2 + .2 + .2 + .2 = 1.0

Written form: 1/5 + 1/5 + 1/5 + 1/5 + 1/5 = 5/5 or 1

It is to be noted that the slope of the line is 5/2. This means that 5 mm of rain falls every 2 hours. See the calculation below.

In general, the slope of a line indicates its gradient and direction. The slope of a straight line between two locations, say (x₁,y₁) and (x₂,y₂), may be simply calculated by subtracting the coordinates of the places. The slope is often denoted by the letter 'm.'

To find the slope of the line in the graph, we use the following equation:

m = [y₂ - y₁]/[x₂-x₁]

Where (x1,y1) = coordinates of the first point in the line; and

(x₂,y₂) = coordinates of the second point in the line

Given that the points (2, 5) from the graph is (x₁, y₁) and the point on graph (4, 10) are (x₂,y₂) Hence,

m = [10-5]/[4-2]

The slope (m) = 5/2

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Full Question:

This is the complete question and the described graph is attached

This graph shows the amount of rain that falls in a given amount of time.

What is the slope of the line and what does it mean in this situation?

Select from the drop-down menus to correctly complete each statement

The slope of the line is ___

This means that ___ mm of rain falls every ___

The solution to this equation: 42 +82=x² is x = 12.

A square number, also known as a perfect square, is an integer that is the square of another integer; in other words, it is the result of multiplying another integer by itself. For instance, 9 is a square number because it equals 32 and can be written as 3 3.

Instead of the product n n, the equivalent exponentiation n2, which is typically pronounced "n squared," is used to represent a number's square. The name of the shape is where the term "square number" originated. The area of a unit square (1 × 1) is the unit of area.

The solution to this equation: 42 +82=x²

x = √(42 +82)

x = √(144)

x = 12

Thus, The solution to this equation: 42 +82=x² is x = 12.

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PRICES COUNTS COSTS

8 e 8e

10 420-e-t 10(420-e-t)

12 t 12t

420 3920

system%28e%2B420-e-t=5t%2C8e%2B10%28420-e-t%29%2B12t=3920%29

First equation gives highlight%28t=70%29.

Second equation simplifies to e-t=140.

Substitution gives highlight%28e=210%29.

Quantity of $10 tickets by difference, highlight%28140%29

Answer:

-13/2

or

-6.5

Step-by-step explanation:

yeah-ya.......... right?

Answer:

Terminating

Step-by-step explanation:

Answer:

Terminating

Step-by-step explanation:

it doesn't repeat bc 89/100 = 0.89

what's up? i think the distance from D to F would be 32.2

we are given DU which is 16.1, and that is half of DF so we just need to perform 16.1(2)= 32.2

best of luck with your studies :)

The graph of straight line y = 2 - x with the given points are shown in graph.

Line segment is a part of the line which have two endpoints and bounded by two distinct end points and contain every point on the line which is between its endpoint.

Given that;

The equation of straight line is,

⇒ y = 2 - x

Now, We have to given that;

Points on the graph are,

x  =  -3, 0, 5

y  =  5, 2, -3

Hence, We can plot the points and join all the points.

We get;

The graph of straight line with the given points as shown in figure.

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Answer:

33%

Step-by-step explanation:

There are 33 squares out of 100 that are shaded

33/100

Percent means out of 100

33%

Or

A ratio that compares a number to 100 can be written as a percent. So in this problem, since the figure has 33 out of 100 boxes shaded, we have the ratio 33/100 which can be written as 33%.

The correct answer is John's weekly salary is $240 based on his hourly pay rate and the number of hours worked.

Let's choose the function "Weekly salary is a function of the hourly pay rate and the number of hours worked."Example: John works as a part-time employee at a grocery store. His hourly pay rate is $12, and he worked for 20 hours in a week. We can evaluate the function to find his weekly salary.

Weekly salary = Hourly pay rate * Number of hours worked

Weekly salary = $12/hour * 20 hours

Weekly salary = $240

So, John's weekly salary is $240 based on his hourly pay rate and the number of hours worked.

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Answer: 17 and 1/2 miles

Step-by-step explanation: They are 15 miles away from eachother which means halfway between the two is 7 and 1/2. 10 plus 7 and 1/2 is 17 and 1/2 and 25 minus 7 and 1/2 is 17 and 1/2.