15. Isabel made the following graph to show
the daily share price for Company XYZ.
What was the change in the price from
Monday to Friday?

There is no solution for the given equation i.e.10[x] =2.5

Equation:

There are many different ways to define an equation. The definition of an equation in algebra is a mathematical statement that demonstrates the equality of two mathematical expressions.

Greatest integer function:

The largest integer function is one that yields an integer that is closest to the specified real value. Additionally known as the step function. The closest integer is used to round off the input using the biggest integer function. Thus, the equation to determine the largest integer is fairly straightforward. It is symbolised by [x]  where x can take on any value.

⇒10[x] =2.5

⇒[x] =[tex]\frac{2.5}{10}[/tex]

⇒[x] =0.25

⇒[x] will be always a interger.As a result there is no solution for the given equation.

Therefore,There is no solution for the given equation i.e.10[x] =2.5

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The equation of the line with slope −6 which goes through the point (−9,−6) = y = -6x + 9.

When you know the slope of something like the line to be investigated and the point given also contains the y-intercept, you can utilize the slope-intercept formula y = MX + b. (0, b). The y value of the y-intercept  point is represented by b in the formula.

A line's slope is the ratio of how much y grows as x increases by a certain amount. The slope of a line indicates how steep it is, or how much y grows as x increases.

The slope of the line = -6  = m

The points (−9,−6). x = -9 , y = -6

Find the y-intercept.

y=mx+b

Substituting the value we get:

-6 = (-6 x -9) + b

-6 = -54 x b

b = 54/6

b = 9.

The equation in slope intercept form as:

y=mx+b

y = (-6)x + 9

y = -6x + 9

The equation of the line with slope −6 which goes through the point (−9,−6) = y = -6x + 9.

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The expression that best compares the minimum temperature of the two planets is -195 > -275

From the question, we are to determine which of the given options best compares the minimum temperature of the two planets

From the given information,

"The minimum temperature of mercury is approximately -275 F"

and

"The minimum temperature of Mars is approximately -195 F"

NOTE: The number -195 is greater than the number -275

Thus,

The minimum temperature of Mars is greater than the minimum temperature of Mercury

Hence, the expression that best compares the minimum temperature of the two planets is -195 > -275

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The first integer is 16 and the next two integers are 17 and 18. The largest one is 18

What in math is an integer?

The first integer will be called x. Consequently, the second integer is x+1 and the third is x+2 (this is because they are consecutive integers). The total of these three numbers is 51, so build up the following equation and answer it.

x+(x+1)+(x+2)=51

3x+3=51

3x=48

x=16

Therefore, the first integer is 16 and the next two integers are 17 and 18. The largest one is 18 and this is the answer.

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The angles of rotation will map the figure onto itself are 60, 120, 180....

In geometry, transformation involves changing the angle, position and/or size of a shape.

The figure that completes the question is added as an attachment

The given parameter is the shape in the figure

From the figure, we can see that the shape has 6 congruent sides

This means that the shape is a regular hexagon

The angle of rotation will map the figure onto itself is calculated as

Angle = 360/Number of sides

So, we have

Angle = 360/6

Evaluate

Angle = 60

The other angles must be a multiple of 60

i.e. 60, 120, 180....

Hence, the angles of rotation will map the figure onto itself are 60, 120, 180....

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For the system of equations y = 2 x + 3 and 2 y - x = 12, the solution will be x = 2 and y = 7.

We are given the system of equations:

y = 2 x + 3   … (1)

2 y - x = 12     …. (2)

We need to solve it to find the values of x and y.

Putting the value of y from equation (1) in equation (2), we get that:

2 y - x = 12

2 (2 x + 3) - x = 12

Multiplying the brackets, we get that:

4 x + 6 - x = 12

3 x + 6 = 12

Subtract 6 from both the sides, we get that:

3 x + 6 - 6 = 12 - 6

3 x = 6

Divide both sides by 3. we get that:

3 x / 3 = 6 / 3

x = 2

y = 2 x + 3

y = 2 (2) + 3

y = 4 + 3

y = 7

Therefore, we get that, for the system of equations y = 2 x + 3 and 2 y - x = 12, the solution will be x = 2 and y = 7.

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Answer: 32604

Step-by-step explanation:

Answer:

+ 1.45

Step-by-step explanation:

the end result is 16.55, therefore you add 1.45 to get $18 again.

The interval(s) for which f(x) ≥ 0. is x ≥ 2

The function is given as:

f(x) = x - 2

Also, we have:

f(x) ≥ 0

This means that

x − 2 ≥ 0

Add 2 to both sides of the inequality

x ≥ 2

Hence, the interval(s) for which f(x) ≥ 0. is x ≥ 2

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Answer:

Step-by-step explanation:

2(4x-3)≥-3(3x)+5x

8x-6≥-9x+5x

8x≥-4x+6

8x+4x≥6

12x≥6

x≥6/12

or

x≥1/2

Answer:

Option D: [tex]y=-2[/tex]

Step-by-step explanation:

The line is horizontal, which means the slope is 0. The line also crosses the y-axis at (0,-2). Thus y at 0 is equal to 2.

The raw score from the given table that corresponds with the 20th and 30th percentiles are;

First distribution;

Second distribution;

The Z–Score percentile normal distribution table can be used to find the Z–Score that gives the percentile value of a raw score.

The Z–Score, also known as the standard score, gives the number of standard deviations, a raw score is far from the mean.

The mathematical equation for the Z–Score is as following; [tex]Z = \frac{x - \mu}{ \sigma} [/tex]

Therefore, a positive value of Z is obtained when the raw score, x, is larger than the mean, [tex] \mu[/tex]

and negative Z value is given by raw scores lower than the mean.

Using the standard normal distribution table, raw score corresponds to the 1th percentile when the Z–Score = -2.326, while the Z–Score for the 99th percentile is 2.326.

The Z–Score of the 20th percentile is -0.842, while for the 30th percentile it is -0.524

Comparing the standard values with the values in the given table, we have;

First distribution;

-0.91960-(-0.842) = -0.0776

-0.71082 -(-0.842) = 0.13118

The smaller difference is given by -0.91960.

Similarly;

Second distribution;

While;

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The value of d is 18.

Given, the slope of the line is 3.

Slope equals a height change (Change in width) You may also say that a slope is a climb or a run. This formula changes if the graph's horizontal axis is represented by x and the vertical axis by y: Slope is equal to (y-change)/ (Change in x)

Two points which lie are N(₋2 , 3) and D(3,d)

slope of the line = y₂ ₋ y₁/x₂ ₋ x₁

let the points N(₋2 , 3) be (x₁ , y₁)

and D(3,d) be (x₂ , y₂)

therefore, 3 = d ₋ 3/3 ₋ (₋2)

3 = d ₋ 3/3 ₊ 2

3 = d ₋ 3 / 5

15 = d ₋ 3

d = 15₊3

d = 18

Hence we get the value of d as 18.

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The simplified rational number that represents this scenario is 1/4

The given parameters are:

14 programming errors for every 56 programmers

The above means:

Error : Actual = 14 : 56

Express as fraction

Error/Actual = 14/56

Simplify the ratio

Error/Actual = 1/4

Hence, the simplified rational number that represents this scenario is 1/4

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Answer:

See the answer below

Step-by-step explanation:

Answer:

800,000

Step-by-step explanation:

To do this, simply divide the number by 10. 8000000/10 = 800,000.

The function f ( x ) = 2 x² + 5 will have the value 23 for f (- 3).

We are given the function:

f ( x ) = 2 x² + 5

We need to find the value of f ( -3 ).

We will do this by substituting the value of x = - 3 in the function and then evaluating the expression.

Putting x = -3 in the function, we get that:

f ( x = - 3 ) = 2 (- 3)² + 5

Solving the square, we get that:

f (- 3) = 2 ( 9 ) + 5

Simplifying the expression, we get that:

f (- 3) = 18 + 5

f (- 3) = 23

Therefore, we get that, the function f ( x ) = 2 x² + 5 will have the value 23 for f (- 3).

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58, 62 and 74 are the numbers between 50 and 80 that has exactly 4 factors with 2 being one of them 4.

As per the question statement, we are required to find out the numbers between 50 and 80 that has exactly 4 factors with 2 being one of the factors.

To solve this question, we need to know that every or any number in the number system as has at least 2 factors: 1 and the number itself.

Since we are to find numbers with exactly 4 factors, 2 being one of the factors and as per the above mentioned concept, two of the remaining three factors will be 1 and the number itself, the fourth factor has to be a prime number as prime numbers have no other factors than 1 and itself.

That is, we will have to find prime numbers (say "n") which when multiplied by 2 lies within the range of 50 and 80,

[tex]or, 50\leq (n*2) \leq 80\\or, \frac{50}{2}\leq n\leq \frac{80}{2}\\ or, 25\leq n\leq 40[/tex]

That is, we will need to find the prime numbers between 25 and 40; They are 29, 31 and 37.

Hence, our required numbers are [(29 * 2) = 58], [(31 * 2) = 62] and

[(37 * 2) = 74]. They lie between 50 and 80 that has exactly 4 factors with 2 being one of them.

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Answer:

6.7

Step-by-step explanation:

√45 = 6.7

.................

The value of the number is 15.

Let the first number be represented by x.

The second number will be:

(2 × x) - 2 = 2x - 2

Therefore, the addition of the numbers will be:

= x + 2x - 2 = 43

3x - 2 = 43

3x = 43 + 2

3x = 45

Divide

x = 45/3

x = 15.

Therefore, the number is 15

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Answer: 6.7% 0.67 6
                                 -
                                9

Step-by-step explanation:

Answer:

[tex]\sf 6.7\% < 6/9 < 0.67[/tex]

Explanation:

You would think 6.7% is a lot bigger than both, but it is not. Remember 6.7 is a percentage out of 100, thus, 6.7% actually is 0.067.

Using proportions, it is found that the cost per ounce is of $0.8.

The missing information is the number of ounces in the balm, that is of 20.

A proportion is a fraction of a total amount, and the measures are related using a rule of three. Due to this, relations between variables, either direct(when both increase or both decrease) or inverse proportional(when one increases and the other decreases, or vice versa), can be built to find the desired measures in the problem, or equations to find these measures.

The cost per ounce is given by the proportion of the cost by the number of ounces, hence:

Then:

$16/20 = $0.8.

The cost per ounce is of $0.8.

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Answer:

width = 6 ft

length = 21 ft

Step-by-step explanation:

Forming algebraic expressions and finding the dimensions of a rectangle:

 Width = w ft

 length =  3*w + 3 = (3w + 3) ft

              2l +2w = P

 2(3w + 3) + 2w = 54

Use distributive property to open the brackets,

 2*3w + 2*3 + 2w = 54

        6w + 6 + 2w = 54

Combine like terms,

          6w + 2w + 6 = 54

               8w   + 6   = 54

Subtract 6 from both sides,

                      8w    = 54 - 6

                         8w = 48

Divide both sides by 8

                           w = 48 ÷ 8

                           [tex]\sf \boxed{\bf w = 6 \ ft}[/tex]

l = 3w + 3

 = 3*6 + 3

 = 18 + 3

l = 21 ft

Answer:

1.3 is the correct answer

Step-by-step explanation:

Answer:

use a calculator

Step-by-step explanation: the calculator doesn't lie I used a calculator

Answer:

1,000,000

Step-by-step explanation: