4d +5≥ 13 or 7d-2 <12

Answer:

[tex]2x + y = 2[/tex]

Step-by-step explanation:

[tex]2x + y = - 5[/tex]

[tex]y = - 2x - 5[/tex]

This line has slope -2 and y-intercept -5.

A line parallel to this line will have a slope of -2. Since the y-intercept is 2, we have:

[tex]y = - 2x + 2[/tex]

[tex]2x + y = 2[/tex]

Answer:

Joshua is correct

Step-by-step explanation:

6x+7+(-2x)+4

6x+7-2x+4

4x+7+4

4x+11

Hopes this helps please mark brainliest

Answer:

Joshua, you can’t simplify/add because they aren’t like terms

A linear or non- linear equation system is called inconsistent if there is no set of values for the unknown that satisfies all of the equations. correct option is (D).

in any case, the system as a whole may be inconsistent if two equations of the simply do not share any point in common. For example: Equation that describes two parallel lines.

For better understanding about inconsistent system:

lets take a non-linear system:

x² + y² + z² = 17

x² + y² +z² = 14

has no solution if one equation is subtracted from the other we obtain the impossible.

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The question was incomplete. Check below the complete question.

Which equation, when paired with y = 2x 5, creates an inconsistent system?

a. 2x y = 5

b. y = 2x 5 2x â€"

c. ]4y = 10 2y â€"

d. 4x = â€"10

Answer:

2

Step-by-step explanation:

8+5=13

Day 1 13+5=18

Day 2 18+5=23

20+3=23

Answer: 7 days

Why it’s 7: just trust me

Answer: R=(320,380)

Step-by-step explanation:

if mia cannot work more than 5 hours overtime a week

then x<5

or x=5 (maximum)

so the domain is (0,5)

and the range will be y when x is (0,5)

so the range is(320,380)

The complete table using the given function y = 3x²- 12x + 6 is below

x     y

1     -3

3     -3

0      6

4      6

The table is competed by using the function and solving for y at different times

The function given to complete the table is

y = 3x²- 12x + 6

substituting the different values of x gives y values

at x = 1

y = 3(1)²- 12 * 1 + 6 = -3

at x = 3

y = 3(3)²- 12 * 3 + 6 = -3

at x = 0

y = 3(0)²- 12 * 0 + 6 = 6

at x = 4

y = 3(4)²- 12 * 4 + 6 = 6

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The height of telephone pole is 56.44 ft.

Given,

length of shadow =12 ft

angle of at which sunray strikes the ground =78°

Le the height of telephone pole be 'x'

From figure,

We can use trigonometric ratios to find the height of pole,

[tex]tan\theta=\frac{opposite\ side}{adjacent\ side}\\\\tan78 \textdegree=\frac{x}{12}\\\\4.704=\frac{x}{12}\\\\h=4.704*12\\\\h=56.448[/tex]

Thus, the telephone pole is 56.448 ft high.

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Your question is incomplete, please complete the question.

The dimensions of A and B are

[tex]A= LT^{-1}[/tex]

[tex]B = LT^{-1/2}[/tex]

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the equation be x

x = At + B√2t

where x is the displacement

t is the time taken

So , the dimension of x will be L

And , the dimension of t will be T

Now ,

The equation is x = At + B√2t

So , the first term At should have dimension of L

And , the second term B√2t should have dimension of L

Therefore , the equation will be

So , The dimension of A will be

[tex]A= LT^{-1}[/tex]

And the dimension of B will be

[tex]B = LT^{-1/2}[/tex]

Hence , The dimensions of A and B are

[tex]A= LT^{-1}[/tex]

[tex]B = LT^{-1/2}[/tex]

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Answer:

Step-by-step explanation:

Amber coaches both sports for 7 hours each day

v = volleyball hours

s = soccerball hours

7 hours in total, in which soccerball is 1 hour more than volleyball:

v + s = 7

s = v + 1

plug in v + 1 for s

v + s = 7

v + (v + 1) = 7

simplify

v + v + 1 = 7

2v + 1 = 7

2v + 1 (-1) = 7 (-1)

2v = 6

2v/2 = 6/2

v = 6/2

v = 3

Plug in 3 for v for one of the equations.

s = v + 1

s = (3) + 1

s = 4

Amber coaches 3 hours for volleyball, and 4 hours for soccer, making a total of 7 hours becuase 4+3 equals 7

hope this help :DDDDD

Answer:

a = 32.3 m/s^2

F = 64.6 N

Step-by-step explanation:

a = v^2 / r

a = 10^2 / 3.1

a = 32.3 m/s^2

F = ma

F = 2 * 32.3

F = 64.6 N

Answer:

Step-by-step explanation:

Let the missing part be x.

According to triangle proportionality theorem we have:

The missing length will be 35 units.

What is mean by Triangle?

A triangle is a three sided polygon, which has three vertices and three angles which has the sum 180 degrees.

Given that;

The triangle is shown is figure.

Now,

Let the missing length = x

So, By the definition of triangle proportionality theorem, we get;

⇒ x/28 = 15 / 12

Solve for x as;

⇒ x/28 = 15 / 12

⇒ x/28 = 5 / 4

⇒ x = 5 x 28 / 4

⇒ x = 5 x 7

⇒ x = 35

Thus, The missing length will be 35 units.

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The expression is f(x) = $0.95x+$9.50

From the question, we have

A cell phone company charges $9.50 per month to rent a cell phone and $0.95 per minute.

f(x) = $0.95x+$9.50

Addition:

The phrase "the addition" refers to combining two or more numbers. Adding two numbers is indicated by the plus sign (+), therefore adding three is written as three plus three. Additionally, the number of times the plus symbol (+) is used is up to you. For example, 3 + 3 + 3 + 3. Mathematical addition is a crucial component of the learning curriculum for kids. In primary school, students learn simple addition sums such as one-digit facts, Math addition sums, and double-digit Math addition sums. One of the most fundamental and interesting Math concepts for elementary school children is addition sums. Math is a fascinating subject, and children first learn basic mathematical concepts like adding numbers in their early years.

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For the exponential growth and the problems based on decay the independent variable is always time .

As given in the question,

Function based on exponential growth and decay problems is represented by :

f(t) = A[tex]e^{kt[/tex]

Function (f) is the dependent variable which depends on time t.

A is the amount for the given model which may vary according to the time.

e is the exponential function which is constant as per the value of time.

t is the time which is not depends on any of the factors given . Time is considered as independent variable.

Therefore, for the exponential growth and the problems based on decay the independent variable is always time.

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Answer:

5

Step-by-step explanation:

180-20x+10 equals the inside angle

180-14x-8x equals the inside angle

20x+10=14x+8x

10=22x-20x

10=2x

5=x

To break even, 29 units must always be sold. The cost will be $850 per unit, or $24,650.

For the given question-

Total cost c: c = 850x + 250000

Total revenue R: R = 9502x

The point during which costs equal revenues is known as the break-even point.

850x + 250000 = 9502x

9502x - 850x = 250000

8652x = 250000

x = 28.29

x = 29

Thus, to break even, 29 units must always be sold. The cost will be $850 per unit, or $24,650.

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The distance that a function's graph moves above and below its midline is referred to as its amplitude. When graphing a sine function, the amplitude's value corresponds to the sine function's coefficient.

The difference (deviations) between each value in the data set and the data set mean are averaged to get the mean absolute deviation. The deviations from a dot plot can be graphically depicted on a number line. The average distance between each data value and the mean is known as the mean absolute deviation (MAD) of a data collection. A measure of variance in a data collection is the mean absolute deviation. The average distance between each data point and the mean is known as the mean absolute deviation of a dataset. It gives us a sense of how variable a dataset is.

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Answer: 3x + y = 2

Step-by-step explanation: Take the 3x and put it in the beginning then write 2  + y = 2. It's because we first must put the number that has an x on it then put the letter y, so 3x + y = 2.

Answer:

y=2-3x in standard form is y =3x+2

Step-by-step explanation:

because we moved the 2 to the other side and when 2 crosses a negative sign it becomes minus and when minus 3x crosses a negative sign it becomes plus becos minus times minus is plus.

The system of equation to describe the situation below is x= 1.

What is equation?

an equation is a formula that is to expresses the equality of two expressions, by the  connecting them with in the equal sign.

The process of equting one thing with another is called the equation of science with objective.

Sol- Based on the given condition-

The formulate is- 36+2x=35+3x

Rearrange variables to the left side of the equation

2x-3x=35-36

Combine like terms

-x= 35-36

Calculate the sum or difference

-x=-1

Devide both side of the equation by the coefficient of variable we get

X=1

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The answer will looks kinda like this:

0.16 will be the Sample Proportion / Parameter.

Given info,

A randomly selected sample of 1,000 college students was asked whether they had ever used the drug Ecstasy. Sixteen percent (16% or 0.16) of the 1,000 students surveyed said they had.

To know which one of the following statements about the number, 0.16 is correct,

This value, 16% = 0.16 would be the sample proportion,

[tex]\hat p[/tex], since it originated from the sample.

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The equation of the parabola that has its x-intercepts at (-1.6, 0) and (-3.2, 0) and its y-intercept at (0, 25.6) is  5x² + 8x - 25.6

The x intercept refers to the value of x when y = 0 this otherwise known as the roots of the polynomial equation.

The intercept form of parabolic equation is

y = a(x - p)(x - q)

where

p and q are roots

a = constant

writing the equation at (-1.6, 0), (-3.2, 0)

y  = a( x + 1.6 ) ( x + 3.2 )

passing through point (0, 25.6)

25.6  = a( 0 + 1.6 ) ( 0 + 3.2 )

25.6 = 5.12a

a = 5

substituting into the equating gives

y = a(x - p)(x - q)

y = 5( x + 1.6 ) ( x + 3.2 )

expanding the equation gives

= 5(x² + 3.2x - 1.6x - 5.12)

= 5(x² + 1.6x - 5.12)

= 5x² + 8x - 25.6

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Answer:

13. [tex]y=-3x[/tex]

14. [tex]y=\frac{2}{5} x+\frac{23}{5}[/tex]

15. [tex]y=4x+3[/tex]

16. [tex]y=-0.5x+6[/tex]

Step-by-step explanation:

Step 1: Point Slope Form

Step 2: Plug in and isolate y to one side (Standard Form)

   13. m = -3 and point: (0,0)

   14. m = 2/5 and point: (6,7)

   15. m = 4 and point: (-2,-5)

   16. m = -0.5 and point: (0,6)

The speed of Melitta in miles per hour is 3 mph .

In the question ,

it is given that

the distance covered by Melitta for morning exercise in 3/4 of an hour =  [tex]2\frac{1}{4}[/tex] mile =

we need to convert the mixed fraction to normal fraction ,

So , [tex]2\frac{1}{4}[/tex] = (2*4 + 1)/4 = (8 + 1)/4 = 9/4 mile

we know that the speed [tex]=[/tex] distance / time

So , Speed of Melitta = (distance covered) / (time taken )

Speed  = (9/4)/(3/4)

= 9/4 × 4/3

= 3 miles per hour .

Therefore , The speed of Melitta in miles per hour is 3 mph .

The given question is incomplete , the complete question is

Melitta found out that if she walk really fast during her morning exercise, she can cover [tex]2\frac{1}{4}[/tex] mile in 3/4 of an hour. How fast is she walking in mile per hour ?

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Answer: P=28 units

Step-by-step explanation:

The perimeter is the sum of the lengths of all the sides of a polygon

1) Let the perimeter of a square is P₁

Since a square has four sides perimeter of a square is:

                                           P₁=4(x+1)

2) Let the perimeter of a triangle is P₂

A triangle has three sides perimeter of a triangle is:

P₂=(x+2)+(x+3)+(x+5)

P₂=x+2+x+3+x+5

P₂=3x+10

Since the square and the triangles have the same perimeter

P₁=P₂

4(x+1)=3x+10

4(x)+4(1)=3x+10

4x+4=3x+10

4x+4-4=3x+10-4

4x=3x+6

4x-3x=3x+6-3x

x=6

Hence,

P=4(x+1)

P=4(6+1)

P=4(7)

P=28 units

The measure of angle E is 121 degrees

The length of the side AB = The length of the side DE

The length of the side BC = The length of the side EF

The length of the side AC = The length of the side DF

The three sides of the triangle ABC is equal to the three sides of the triangle DEF.

Therefore the triangle ABC and triangle DEF is congruent

Therefore,

Angle B = Angle E

96 + y = 6y - 29

6y -y = 96 + 29

5y = 125

y = 125 / 5

y = 25

Angle E = 6y - 29

= 6×25 - 29

= 150 - 29

= 121 degrees

Hence, the measure of angle E is 121 degrees

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Answer:

B

Step-by-step explanation:

A C D are functions but B is not a function

The situations that can be modeled by uniform distribution include;

Option 2) is: When each discrete value is

equally likely to occur.

Option 3) is:  When each value of a continuous random variable is equally likely to occur.

Since each value has an equal chance of occurrence, thus this situation can be  modelled by Uniform distribution.

Since each value of a continuous random variable is equally likely to occur, that it follows a continuous uniform distribution.

A uniform distribution is a type of probability distribution in statistics in which all outcomes are equally likely. A deck of cards has uniform distributions because the chances of drawing a heart, a club, a diamond, or a spade are all equal. When you sample a random element, you do so according to some distribution.

The term "uniformly" refers to sampling from a uniform distribution, i.e., from a set in which drawing each element is equally likely. In statistics, it is a type of probability distribution in which every possible outcome has an equal chance of occurring. Because each variable has an equal chance of being the outcome, the probability is constant.

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Answer: A, D, F

The guy above me is wrong.

The equation of a line that passes through the point (20,17) with slope -4 is y = -4x + 97.

Given:

point(20,17) and slope m = -4

we know that:

slope intercept form y = mx + c

substitute m and (20,17)

17 = -4*20 + c

17 = -80 + c

c = 17 + 80

c = 97

y = mx +c

y = -4x + 97

Therefore the equation of a line that passes through the point (20,17) with slope -4 is y = -4x + 97.

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