Write inequalities to represent each situation:
A) Matt either spends less than 20 or more than 150 on his shoes.
B) Sarah has at least $25 in the bank.
C) The speed limit on a road is 35. Jena got a ticket.
D) Rusty will pay no more than $4 for a haircut.​

Answer:

$5.75

Step-by-step explanation:

price of the two hot dogs = 1.50 × 2 = $3

Then

The total payment = 3 + 2.75 = $5.75

Answer:

[tex]270.33\%[/tex]

Step-by-step explanation:

so generally when we want to calculate how much "percent" a number is of another number we do, [tex]100(\frac{part}{whole})[/tex]

In this question, it's asking what percent of 182 is 492, and this wording might be a bit tricky at first. It might help a bit to reword it into, "492 is what percent of 182"

So in this question, the 492 is the part (despite it being bigger), and 182 is the whole

So now we use the equation: [tex]100(\frac{part}{whole})=100(\frac{492}{182})\approx270.33\%[/tex]

Answer:

4, 8, 12, 16, 20, 24, 28,32, 36, 40, 44, 48, 52

Answer:

x > -6.

Step-by-step explanation:

-3x < 18

Divide both sides by -3.

x > -6.

(Note that the sign is flipped as we are dividing by a negative quantity).

According to the question, to write the solution for the logarithmic function, the concept of indices is also needed.

Therefore, the given expression is [tex]ex^{-2}=12[/tex]

The values get multiplied in addition. Therefore, the above expression can be written as by taking log on both the sides:

[tex]ln(ex^{-2} )=ln(12)\\-2(ln(e)+ln(x)) = ln(4)+ln(3)= 2ln(2)+ln(3)[/tex]

Using logarithmic definition, we can write:

The solution for the given expression is [tex]-2(1+ln(x)) = 2+ln(3)[/tex]

What is logarithmic function?

In terms of mathematics, the logarithmic function can be defined as the inverse of exponential function. It is always on the positive side of the ordinate axis.

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The unit price of strawberries at the grocery mart is $1.5, the unit price of strawberries at the Baldwin hills is $1.30

In order to get the unit price of an item, you would have to divide the cost of the item by the total quantity bought.

With this definition, at the grocery mart

price = 2.99 dollars

quantity bought = 2

unit price = 2.99 / 2

= 1.5 dollars

At the Baldwin hills

price = 3.99 dollars

quantity bought = 3

unit price = 3.99 / 3

= $1.30

Hence the unit prices at the two markets are $1.5 and $1.30

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At Grocery Mart,strawberries cost $2.99 for 2lb., and at Baldwin Hills Market strawberries are $3.99 for 3 lb.What is the unit price of strawberries at each grocery store? If necessary , round to the nearest penny.

[tex]x^{3} / y^{6}[/tex] is the simplest form

The expression is

[tex](x^{1/3 }/ y^{2/3} ) ^{9}[/tex]

We have to multiply the root of 9 with the root of the numerator and denominator.

So we will get

[tex](x^{1/3} )^{9} /( y^{2/3})^{9}[/tex]

[tex]x^{1/3*9} / y^{2/3 *9}[/tex]

We will get

[tex]x^{9/3} /y^{18/3}[/tex]

=[tex]x^{3} / y^{6}[/tex]

So now we get the equation in the simplest form in the form of x and y

i.e [tex]x^{3} / y^{6}[/tex]

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Answer:

720

Step-by-step explanation:

A foot is 12 inches, so 60ft = 60(12) inches
60 x 12 = 720

According to the question, the polynomial equation that is [tex]x^{4}+3x^{3}+16x^{2} -19x+8[/tex] is divided by the binomial [tex]x-1[/tex]. And in this, the coefficient of [tex]x^{2}[/tex] in the quotient is [tex]2[/tex].

The given expression can be written as:

Expression = [tex]\frac{x^{4}+3x^{3}+16x^{2} -19x+8}{x-1}[/tex]

Now, find the factors of the numerator term:

f(x) = [tex]x^{4}+3x^{3}+16x^{2} -19x+8 = (x-1)(x^{3}+4x^{2} -11x-30 )[/tex]

From the above equation, the coefficient of [tex]x^{2}[/tex] is [tex]4[/tex].

The solution for the given expression is [tex]4[/tex].

What is polynomial function?

Polynomial functions are those function whose variables contains varying degrees as well as non-zero coefficients and positive integers. It has different forms like quadratic equation or cubic equation etc.

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The value of x is 1.14 or x = -1.47

We find the value of x in the quadratic equation 3x^2 +x-5=0

Using the formula: (-b ± √ (b²- 4 a c)) / (2a)

Where the value of a = 3, b = 1 and c = -5

Substituting the above values (a = 3, b = 1 and c = -5)

in the formula:

(-1 ± √ (1²- 4 3 (-5))) / (2*3)

= (-1 ± √ (1+60)) / (6)

= (-1 ± √ (61)) / (6)

= (-1 ± 7.81) / (6)

= (-1 + 7.81) / (6) or (-1 -7.81) / (6)

= (6.81) / (6) or (-8.81) / (6)

=1.135 or -1.468

Hence the value of x= 1.14 or -1.47

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The values of a and b are - 2 and 5, respectively.

In this problem we must expand the quadratic polynomial and find the values of two coefficients by direct comparison, the complete procedure is now introduced:

x² - 4 · x + 9 = (x + a)² + b

x² - 4 · x + 9 = x² + 2 · a · x + a² + b

Then, by direct comparison, we find the following system of equations:

2 · a = - 4            (1)

a² + b = 9            (2)

By (1):

a = - 2

(1) in (2):

b = 9 - a²

b = 9 - (- 2)²

b = 5

The values of a and b are - 2 and 5, respectively.

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The function f (x) = (x - 13)² is shifted 13 units to the left, the function f (x) = | x + 6 | is shifted 6 units to the right and the function f (x) = | x - 4| is shifted 4 units to the left from the parent function.

We are given the following functions:

f (x) = (x - 13)²  …(1)

f (x) = | x + 6 |  …(2)

f (x) = | x - 4|    …(3)

We need to find the transformations for the given functions.

For function (1), we get that:

It is shifted 13 units to the left.

For function (2), we get that:

It is shifted 6 units to the right.

For function (3), we get that:

It is shifted 4 units to the left.

Therefore, we get that, the function f (x) = (x - 13)² is shifted 13 units to the left, the function f (x) = | x + 6 | is shifted 6 units to the right and the function f (x) = | x - 4| is shifted 4 units to the left from the parent function.

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The possible values of x < 21.6.

When two mathematical statements or two numbers are compared in an unequal way, it is known as inequality in mathematics. Inequalities can generally be classified as either algebraic or numerical or as a combination of the two. When a polynomial of degree 1 is compared to another algebraic expression of a degree less than or equal to 1, this is an example of a linear inequality, which is an inequality involving at least one linear algebraic expression. Different types of linear inequalities can be represented in a number of different ways. As with multi-step linear equations, start by separating the variable from the constants when resolving multi-step linear inequalities with one variable. According to the laws of inequality, it is crucial that we remember to flip the inequality sign when multiplying or dividing with negative values while resolving multi-step linear inequalities.

so, from the question, the equation becomes,

x+15.5+14.2<51.3

x= 51.3-29.7

x= 21.6 Inches

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Answer:

A

Step-by-step explanation:

3x-8y+2x^2+3y-8x

2x^2-5x-5y

The true statements about the integer are:

The statement is given as

The sum of -5 and another integers is a positive integer

Let the other integer be x

So, we have

The sum of -5 and x is a positive integer

A positive integer is greater than 0

So, we have

-5 + x > 0

Add 5 to both sides of the inequality

So, we have

x > 5

The above means that x is greater than 5

Hence, the sign of the integer is positive

The statement is given as

The sum of -5 and another integers is a positive integer

Let the other integer be x

So, we have

The sum of -5 and x is a positive integer

A positive integer is greater than 0

So, we have

-5 + x > 0

Add 5 to both sides of the inequality

So, we have

x > 5

The above means that x is greater than 5

Hence, the value of the integer is greater than 5

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Answer:

a. 117. b. 9 c. 0. d. 22

Step-by-step explanation:

this composite function is calculated as: (f o g) (x) = f (g (x))

The smallest amount that Caleb could have converted will be £ 59.

We are given that:

At shop A, Gavin converted £ 30 into € 36.60

At shop B, Amna converted £ 73 into € 86.14

Also, Caleb converted some pounds and got € 71.98.

Rate of conversion at shop A is:

£ 30 = € 36.60

£ 1 = € 36.60 / 30

£ 1 = € 1.22

rate of conversion at shop B is:

£ 73 = € 86.14

£ 1 = € 86.14 / 73

£ 1 = € 1.18

Now, we can see that the rate of conversion is more at shop A.

So, the smallest amount that Caleb might have converted will be:

Pounds = € 71.98 / € 1.22

Pounds = £ 59

Therefore, the smallest amount that Caleb could have converted will be £ 59.

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The formula for density is d = M/V,

where d is density, M is mass, and V is volume.

Density is commonly expressed in units of grams per cubic cm. For example, the density of water is 1 gram per cubic cm, and Earth's density is 5.51 grams per cubic cm.

The quantity per unit volume, unit area, or unit length: as. a : the mass of a substance per unit volume. b : the distribution of a quantity (as mass, electricity, or energy) per unit usually of space.

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The required value of base x is -4, 3.

A quadratic equation is an algebraic equation of the second degree in x. The quadratic equation in its standard form is

ax^2 + bx + c = 0,

where a and b are the coefficients, x is the variable, and c is the constant term.

Now it is given that,

221x = 25base10

Converting them into quadratic equation we get,

2x^2 + 2x + 1x^0 = 2*10^1 + 5*10^0

Solving we get,

2x^2 + 2x + 1*1 = 2*10 + 5*1

Multiplying we get,

2x^2 + 2x + 1 = 20 + 5

Adding we get,

2x^2 + 2x + 1 = 25

Subtracting 25 both the side we get,

2x^2 + 2x + 1 - 25 = 25 - 25

Solving we get,

2x^2 + 2x - 24 = 0

Dividing whole equation by 2 we get,

x^2 + x - 12 = 0

factorizing we get,

x^2 + (4 - 3)x - 12 = 0

Expanding the bracket we get,

x^2 + 4x - 3x - 12 = 0

Taking common we get,

x(x + 4) - 3(x + 4) = 0

Again taking common we get,

(x + 4)(x - 3) = 0

Thus the value of x are,

x = -4

and x = 3

this is the required value of base x.

Thus, the required value of base x is -4, 3.

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There is a 35% increase in the number of seats.

Let us try to carry out each of the calculations as shown;

1) 7/8 + 1/6 ÷  2/9

Applying BODMAS

7/8 + (1/6 * 9/2)

7/8 + 9/12 = 39/24

2) 8/ 0.4^3 = 125

3) 75/100 * 15400 = 11550 people

4) Percentage increase in the number of seats = New capacity - Old capacity/Old capacity * 100/1

= 20790 seats - 15400 seats/15400 seats * 100/1

= 35 % increase

4) If it flashes 5 times every 10 seconds

Then in 1 second it flashes 0.5 times in every second

In a day there are 86400 seconds

Thus the light flashes 86400 seconds  * 0.5 times = 43200 times in a day.

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Transformation of y= b*x into y = 2.3 *x will take place by vertical dilation by a scale factor of  2.3.

A parent function is the simplest form of a particular family of functions. A family of operations is a group of tasks with the same highest degree and therefore the same graph shape.

Function transformations "move" "resize" or "mirror" the graph of the parent function.

Mathematically speaking, the transformation of the function y = f(x) is usually y = a f(b(x + c)) + d. where a, b, c, and d are arbitrary real numbers representing transformations. Note that all outer numbers (outside the brackets) represent vertical translations, and all inner numbers represent horizontal translations. Addition and subtraction are translations, and multiplication and division are dilations. Every time a minus sign is multiplied it means  it is a reflection here,  'a' stands for vertical stretch, 'b' stands for horizontal stretch, 'c' stands for horizontal movement, 'd' stands for vertical movement

We have given two functions y=b x  and y = 2.3x which means that first, y  changes into 2.3 x  i.e., vertical dilation by a scale factor of 2.3.

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Parallel lines have the same slope, so the slope is 5.

The equation in point-slope form is y-10=5(x-3). Substituting x=0, we get y - 10 = -15, and thus the y intercept is (0, -5).

The required total amount paid for magazine and pencil is 108p.

Simplification generally means finding an answer for the complex calculation that may involve numbers on division, multiplication, square roots, cube  roots, plus and minus.

Now it is given that,

Costing of a magazine = 83p

Costing of pencil = 45p

Thus, Total costing = Costing of a magazine + Costing of pencil

Putting the values we get,

Total costing = 83p + 45p = 128p

Now voucher gives 20p off

So, Final Costing = Total costing - Voucher off

⇒ Final Costing = 28p - 20p

⇒ Final Costing = 108p

this is the equired total amount paid for magazine and pencil.

Thus, the required total amount paid for magazine and pencil is 108p.

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There are two values of b such that the minimum value of the function is - 1, then the solutions are b₁ = - 2 and b₂ = 2, respectively.

In this problem we know a quadratic equation of the form g(x) = x² + b · x, of which we must determine the value of b such that the y-value of the minimum is - 1. Graphically speaking, quadratic equations are represented by parabolae, which have either a minimum or a maximum know as vertex.

First, we must determine the vertex form of the equation of the parabola:

y = x² + b · x

y = x² + 2 · (b / 2) · x

y + b² / 4 = x² + 2 · (b / 2) · x + b² / 4

y + b² / 4 = (x + b / 2)²

The coordinates of the vertex are (h, k) = (- b / 2, - b² / 4). Then, the y-coordinate of the vertex is:

- b² / 4 = - 1

b² / 4 = 1

b² = 4

b = ± 2

There are two values of b such that the minimum value of the function is - 1, then the solutions are b₁ = - 2 and b₂ = 2, respectively.

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Answer:

C. -5/6x+(8)

Step-by-step explanation:

mmmm math, love me some math, love me math, mmmm

Answer:

I think the answer is 11 in my opinion