Write a quadratic inequality represented by the graph

Answer:

Step-by-step explanation:

(3x−5)(3x+5)

Multiplication can be transformed into difference of squares using the rule: (a−b)(a+b)=a

2

−b

2

.

(3x)

2

−5

2

Expand (3x)

2

.

3

2

x

2

−5

2

Calculate 3 to the power of 2 and get 9.

9x

2

−5

2

Calculate 5 to the power of 2 and get 25.

9x

2

−25

Answer: x = 2.5

Answer:

[tex]y - 3 = -\dfrac{1}{4}(x - 4)[/tex]

Step-by-step explanation:

This can be solved without too much calculation

First note that the lope of the graph is negative. If you look at the graph, as x increases, y decreases so that indicates a negative slope

We can safely eliminate the last two options because the coefficient of x in both is +1/4 indicating a positive slope

That leaves the first two for consideration

We can plug in the x, y  values for the given point (4, 3) which lies on the  line and see which of the equations is consistent, i.e whether the LHS and RHS of the equation match

Putting y = 3 and x = 4 in the first equation y - 4 = -1/4(x - 3) gives us
3 - 4 = -1/4(4-3) ??

-1 = -1/4(1) ?

-1 = -1/4? NO

So the correct choice is the second option and we can verify that by plugging in (4, 3) into y - 3 = -1/4(x - 4)

y - 3 = 3 - 3 = 0

x - 4 = 4 - 4 = 0

So 0 = -1/4(0) = 0

which is consistent

Based on the figure shown the lines that are parallel are

Using the given figure

From the alternate internal angle postulate it can be shown that angle in both line t and line s are equal. This angle is 65 degrees.

The alternate angle postulate hold true for parallel lines hence it shows that line s is parallel to line t while line m is the transversal line required to complete the postulate.

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Answer: the volume of cube is 64 x6 + 144x4 + 108x2 + 27.

Step-by-step explanation: As given in the problem statement the volume

V = s3----- (1)

And

s = 4x2 + 3--------(2)

Hence,

the volume is obtained by substituting (2) in (1).

We get,

V = (4x2 + 3)3

= 64 x6 + 144x4 + 108x2 + 27

Therefore,

the volume of cube is 64 x6 + 144x4 + 108x2 + 27.

Answer:

Step-by-step explanation:

The side length, s, of a cube is 4x2 + 3. If V = s3, what is the volume of the cube?

Volume = s³

s = 4×2+3

so

(4 × 2  + 3)² =                 (remember PEMDAS)

(8 + 3)² =

11² =

121 units²

The probability of either a dot or a dragon tile is 48/64

Number of dot tiles in Mahjong game = 36 tiles

Probability of a dot tile = 36/64

Number of wind tiles in Mahjong game = 16 tiles

Probability of a wind tile = 16/64

Number of dragon tiles in Mahjong game = 12 tiles

Probability of a dragon tile = 12/64

Total number of tiles in the Mahjong strategy game = 36+16+12 = 64 tiles

Probability of Grace's drawing a dot or a dragon tile:

(Number of dot tiles + Number of dragon tiles)/ Total number of tiles in the game

= (36+12)/64

= 48/64

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Answer:

135

Step-by-step explanation:

If 3x = 5, x = 5/3

3^4 = 81

3^4 x = 81x = 81 x 5/3 = 135

Answer: 13.56 kg

Step-by-step explanation:

We can make two equations:

1) A = B + 2.5

2) C = B - 4.86

Replace C with 6.2.

(6.2) = B - 4.86 can be rewritten as 6.2 + 4.86 = B.

B = 11.06

Add 2.5 to 11.06 and you get 13.56 kg.

Answer:

Last choice:

  3/10 · 2/9

Step-by-step explanation:

The total number of marbles and the number of red marbles is not provided but only one answer fits the problem solution

3/10 x 2/9 which is the last choice

It can be deduced that there are 10 marbles totally and 3 of them are red

The probability of a red marble on first draw = 3/10

After the first draw given a red marble was drawn, there are 2 red marbles and total of  marbles so the probability of a second red marble = 2/9

The combined probability is 3/10 x 2/9

Answer:

432. Zola will have 432 4-inch pieces of rope.

The linear equation that passes through the anchor points (-3, -38) and (8, 61) is:

y = 9*x - 11

The general linear equation is written as:

y = a*x + b

Where a is the slope and b is the y-intercept.

We know that for a line that passes through two points (x₁, y₁) and (x₂, y₂) can be written as:

a = (y₂ - y₁)/(x₂ - x₁)

Now, in this case we know that our line passes through the points (-3, -38) and (8, 61), then the slope will be:

a = (61 + 38)/(8 + 3) = 9

Replacing that we get:

y = 9*x + b

Now, using one of the points we can find the y-intercept, I will use (8, 61), replacing the values we get:

61 = 9*8 + b

61 = 72 + b

61 - 72 = b

-11 = b

The linear equation is:

y = 9*x - 11

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Answer:

[tex]3.2129 \times {10}^{5} [/tex]

Step-by-step explanation:

[tex](7.22 \times {10}^{1} )(4.45 \times {10}^{3} )[/tex]

[tex](7.22 \times 4.45) \times ( {10}^{1} \times {10}^{3} )[/tex]

[tex]32.129 \times {10}^{4} [/tex]

[tex]3.2129 \times {10}^{5} [/tex]

Answer:

The correct equation is b, x = 4.

The area of rectangle A is (A) 256 cm².

So, the area of rectangle A:

Therefore, the area of rectangle A is (A) 256 cm².

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Answer:

128 cm^2

Step-by-step explanation:

The area of rectangle B is 512 cm2. Since the dimensions of rectangle B are two times larger than the dimensions of rectangle A, the scale factor is 2.

To find the area of rectangle A, first square the scale factor, 2.

2^2 = 4

Next, divide the area of rectangle B by 4.

512 cm^2 ÷ 4 = 128 cm^2

Any number of angles that add up to 180 are supplementary. Since a 180 degree angle is a straight line, these two angles, which lie on a straight line are supplementary.

By solving a quadratic equation we will find two solutions, one is good and that is x = 0.62, and the other is extraneous and is x = -1.62

Here we have the following equation:

ln(x + 2) + ln(2x - 1) = 0

To solve this we need to know two things, first:

ln(a)+ ln(b) = ln(a*b)

ln(1) = 0

Using the first property, we can rewrite:

ln(x + 2) + ln(2x - 1) = ln( (x + 2)*(2x - 1)) = 0

And that can only be equal to zero if:

(x + 2)*(2x - 1) = 1

So we have a quadratic equation:

(x + 2)*(2x - 1) = 1

2x² - x + 4x - 2 = 1

2x² + 3x - 3 = 0

The solutions are:

[tex]x = \frac{-3 \pm \sqrt{3^2 - 4*3*(-3)} }{2*3} \\\\x = \frac{-3 \pm 6.7 }{6}[/tex]

So we have:

x = (-3 + 6.7)/6 = 0.62

x = (-3 - 6.7)/6 = -1.62

The second solution when evaluated in the second term of the equation gives:

ln(2*(-1.62) - 1) = ln(-4.24)

And this is not defined, so x = -1.62 is an extraneous solution.

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The image of the point after the dilation is (3, 6)

Dilation involves changing the side length of a shape or a function

The given parameters are:

Point =  (6, 12)

The scale factor of dilation is given as

Scale factor = 1/2

Mathematically, this transformation can be represented as

(x, y) = 1/2(x, y)

So, we have

(x, y) = (1/2x, 1/2y)

When represented as a function, we have

Image = 1/2 * Point

Substitute the equation Point =  (6, 12) in the equation Image = 1/2 * Point

So, we have the following equation

Image = 1/2 * (6, 12)

Evaluate the product

Image = (3, 6)

Hence, the image is (3, 6)

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Answer:

There are 20 long tables and 5 round tables y.

Step-by-step explanation:

Given:

long tables x + round tables y = total of 25 tables

8seats ·x +6seats ·y = 190 seats

Find x and y:

x+y= 25 so x= 25-y

8x+6y = 190, we substitute x for 25-y to find y

8(25-y) +6y = 190, we distribute 8 in parenthesis

200 -8y+6y = 190, combine like terms

200 -2y = 190, subtract 200 from both sides

-2y = 190-200, combine like terms

-2y = -10, divide both sides by -2

y = 5

x+y = 25, substitute y for 5

x+5 = 25, subtract 5 from both sides

x= 20

Conclusion:

There are 20 long tables and 5 round tables y.

Check :

20·8+5·6 = 160+30 = 190 seats

An arithmetic succession, is defined by constant sums or substractions. A geometric succession, is defined by constant products. In this case, we can define this succession as a product

It means this succession is geometric.

Step 1:

Write the regression line equation.

Step 2:

y represents the cost and x represent the number of years.

From 2005 till 2022

x = 17 years

Step 3:

Let find the cost to go on a safari in 2022.

Final answer

The cost to go on a safari in 2022 = $74

Answer:

Slope is -12.5

x-intercept is 75

y-intercept is 6

Step-by-step explanation:

See attached image

The number 0.0000005478 written in scientific notation is  54.78 x 10⁻⁸.

A number is a mathematical entity that can be used to count, measure, or name things. For example, 1, 2, 56, etc. are the numbers.

It is given that,

the given number in its scientific notation is 0.0000005478.

Using scientific notation, one can express extremely big or extremely small values. When a number between 1 and 10 is multiplied by a power of 10, the result is represented in scientific notation. For instance, 650,000,000 can be represented as  6.5 ✕ 10^8 in scientific notation.

The decimal point must be moved till it is to the left of the first non-zero number in order to be written in scientific notation. The exponent is the number of places the decimal point advances since each movement signifies a "power of 10".

Thus, the number 0.0000005478 written in scientific notation is  54.78 x 10⁻⁸.

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If a milk truck delivers 486 dozen gallons of milk to stores in 1 day, then equation to calculate "g",  the number of gallons of milk the milk truck delivers in 1 day, can be written as [g = (486 * 12)]

As per the question statement, a milk truck delivers 486 dozen gallons of milk to stores in 1 day.

We are required to determine the equation that can best express "g", the number of gallons of milk the milk truck delivers in 1 day.

To solve this question, first we need to know what an equation is.

Here, We know that (1 dozen = a set of 12),

Then, [486 Dozen Gallons = (486 * 12)] gallons, which is the total number of gallons of milk the milk truck delivers in 1 day.

On the other hand, the variable "g" can also be used to determine the number of gallons of milk the milk truck delivers in 1 day.

Therefore, our required equation is [g = (486 * 12)].

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Answer:

In a parallelogram:

Opposite sides are parallel.

Opposite sides and opposite angles are congruent.

Consecutive angles are supplementary.

1)Use the following rule to rewrite with only a positive exponent: [tex]x^{-n}[/tex] = 1 ÷ [tex]x^{n}[/tex] and apply the exponent to both the numerator and the denominator of the fractional base using the rule: [tex](\frac{a}{b} )^{n} = \frac{a^{n} }{b^{n} }[/tex].

2) Simply add or subtract the numerators of two arithmetic operations with the same denominator and write the result to the common factor.

3) Yes, reasonable expressions have limitations at times. Check for zero just on the denominator side to identify those constraints.

1) To evaluate an expression with a rational and negative exponent, follow these steps:

2) To simplify rational variable expressions,

Simply add or subtract the numerators of two arithmetic operations with the same denominator and write the result to the common factor. If the denominators do not match, they must be changed until they are equal. That is, we need to find a common denominator.

3) The denominator can be any number, even zero. However, there are constraints based on not reducing by zero inside the case of a denominator. There is a limit to the value that may be used to replace our variable and get a denominator of 0.

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Answer: 3,52 x 10²

Step-by-step explanation:

Answer:

3.5 x [tex]10^{2}[/tex]

Step-by-step explanation:

Multiply the numeric values times each other and add the exponents:

(3.2 x 1.1) x ([tex]10^{-7}[/tex] x [tex]10^{9}[/tex])

3.52 x [tex]10^{2}[/tex]

To one significant figure: 3.5 x [tex]10^{2}[/tex]

Answer:

[tex]36\frac{5}{9}[/tex]

Step-by-step explanation:

Given expression:

[tex]329 \div 9[/tex]

Solve using long division:

[tex]\large \begin{array}{r}36\phantom{)}\\9{\overline{\smash{\big)}\,329\phantom{)}}}\\{-~\phantom{(}\underline{0\phantom{)).)}}\\ {32\phantom{...}}\\{-~\phantom{(}\underline{27\phantom{...}}\\59\phantom{)}\\-~\phantom{()}\underline{54\phantom{)}}\\5\phantom{)}\\\end{array}[/tex]

Therefore, the solution to the given expression is:  

When one grain of sand weighs 7×10⁻⁵ g, then there are 9.0 × 10¹⁰ grains of sand in 6300 kg of sand.

Given, one grain of sand approximately weighs 7×10⁻⁵ g.

Then how many grains of sand are there in 6300 kg of sand = ?

we know that one grain of sand weighs =  7×10⁻⁵ g.

therefore, 6300 kg = 6300 × 10³ g sand contains

= 6300 × 10³/7×10⁻⁵

= 900×10³/10⁻⁵

= 900 × 10³ × 10⁵

= 9.00 × 10² × 10³ ×10⁵

= 9.0 × 10²⁺³⁺⁵

= 9.0 × 10¹⁰

Hence there are 9.0 × 10¹⁰ grains of sand in 6300 kg of sand.

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Answer:

C = $60

Step-by-step explanation:

To calculate monthly charges, a cellphone provider uses the equation: C = 0.25m + 60, with C being dollars and m representing minutes used beyond the ones provided by the plan. Assuming the plan allowed for 60 minutes, what would the charge be for a client that used 55 minutes? Put your answer in terms of dollars.

The customer used 55 minutes and did not max out the phone plan, and therefore does not pay any over charges of m.

C = 0.25m + 60 when m = 0

C = 0.25m + 60

C = 0.25(0) + 60

C = 0 + 60

C = $60

Answer:

C = $60

Step-by-step explanation:

The relationship between ∠7 and ∠8 are linear pair angles.

Line m and n intersect at point E.

When line intersects angle relationships are formed such as vertically opposite angles, linear angles etc.

Therefore, angles relationships are formed when the line m and line n intersect at point E.

Hence,

∠7 and ∠8 are linear pair angles.

Linear pair of angles are formed when two lines intersect each other at a single point.

Linear pair angles are supplementary.

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