The bookshop received a shipment of identification books. 1/3 of them were bird books, 1/2 of the rest of the books
were about plants, and 1/4 of the remaining books were mammal books. The 12 books that were left were insect
books. How many books were in the shipment?

A. When x = -1, the value of y is equal to 3.

B. When y = 7, the value of x is equal to 1.

C. The y-intercept of the graph is equal to -2.5.

D. The x-intercept of the graph is equal to 5.

E. The slope of the line is equal to -1.75

F. The equation of the line is equal to y = -1.75x - 2.5

In Mathematics, the y-intercept of any graph such as a linear function, generally occur at the point where the value of "x" is equal to zero (x = 0).

Mathematically, the slope-intercept form of a line can be calculated by using this equation:

y = mx + c

Where:

Making slope (m) the subject of formula, we have the following:

Slope, m = (y - c)/x

Slope, m = (1 - (-2.5))/-2

Slope, m = (1 + 2.5)/-2

Slope, m = -3.5/2

Slope, m = -1.75.

For the equation of this line, we have:

y = mx + c

y = -1.75x - 2.5

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Answer:

B

Step-by-step explanation:

3([tex]3^{2}[/tex]) + 2([tex]8^{2}[/tex])

3(9) + 2(64)

27 + 128

155

(2,1) because if you graph it, the dot won’t be on the line.

The percentage of lightbulb replacement requests numbering between 32 and 36 is 34

According to the question,

The distribution of the number of daily request is bell-shapes means Number of daily request follows Normal distribution

Mean of normal distribution : μ = 36

Standard deviation : σ = 4

Let the lightbulb replacement requests number be "x"

So, the probability of lightbulb replacement requests numbering between 32 and 36 = P(32 < x <36)

below 36 i.e. mean of normal

32 = 36 - 4 is probability between one standard deviation and below mean

Percentage between mean ± standard deviation is always 68%

so , percentage of lightbulb replacement requests numbering between 32 and 36 will be half of 68% as mean + standard deviation is excluded

= 68/2

= 34

Hence , 34 percentage of lightbulb replacement requests numbering between 32 and 36.

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Answer:

[tex]f(x)=6(x-2)^2+18[/tex]

Step-by-step explanation:

Given quadratic function:

[tex]f(x)=6x^2-24x+42[/tex]

To complete the square, begin by grouping the x terms within parentheses:

[tex]\implies f(x)=(6x^2-24x)+42[/tex]

Factor out the coefficient of x²:

[tex]f(x)=6\left(x^2-4x\right)+42[/tex]

Add the square of half the coefficient of the term in x inside the parentheses, and subtract the distributed value outside the parentheses:

[tex]\implies f(x)=6\left(x^2-4x+\left(\dfrac{-4}{2}\right)^2\right)+42-6\left(\dfrac{-4}{2}\right)^2[/tex]

Simplify:

[tex]\implies f(x)=6\left(x^2-4x+\left(-2\right)^2\right)+42-6\left(-2\right)^2[/tex]

[tex]\implies f(x)=6\left(x^2-4x+4\right)+42-6\left(4)[/tex]

[tex]\implies f(x)=6\left(x^2-4x+4\right)+42-24[/tex]

[tex]\implies f(x)=6\left(x^2-4x+4\right)+18[/tex]

Factor the perfect square trinomial inside the parentheses:

[tex]\implies f(x)=6(x-2)^2+18[/tex]

[tex]\boxed{\begin{minipage}{5.6 cm}\underline{Vertex form of a quadratic equation}\\\\$y=a(x-h)^2+k$\\\\where:\\ \phantom{ww}$\bullet$ $(h,k)$ is the vertex. \\ \phantom{ww}$\bullet$ $a$ is some constant.\\\end{minipage}}[/tex]

Comparing the derived equation with the vertex formula, the vertex of the derived equation is (2, 18).  Hence the completion of the square is correct.

Answer:

7

Step-by-step explanation:

THe answer is 7 because 10-3=7 SOrry if wrong

Answer:

wean positive realtionship

Using easy mathematical operations, we know that the value of x in the given rectangle is 6 cm.

An operation, in mathematics, is a mathematical function that transforms zero or more input values into a precisely defined output value.

The arity of the operation is influenced by the number of operands.

PEMDAS, parenthesis, exponents, multiplication, and division.

So, the value of x will be:

The given two rectangles have similar sides.

2cm is similar to 4cm.

3cm is similar to xcm.

Now, we can calculate x as follows:

2/4 = 3/x

2x = 4×3

2x = 12

x = 12/x

x = 6

Therefore, using easy mathematical operations, we know that the value of x in the given rectangle is 6 cm.

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Answer:

B

Step-by-step explanation:

Since -1 is greater the values given then x is less than -1

The original price of purchasing is $825 plus 7% sales tax, then the interest will be $9.20. Hence, option D is correct.

The Latin term "per centum," which signifies "by the hundred," is where the word "percentage" originally came from. With 100 as the denominator, percentages are fractions. To put it another way, it's the relationship here between a component and a whole, in which the value of the whole is always assumed to be 100.

As per the given data in the question,

The original purchase price = $825

The sales tax = 7% of $825 = 825 × 7/100 = $57.75

Total credit = $825 + $57.75 = $882.75

The monthly interest rate = 12.5%/12 = 1.0417%

Interest = $882.75 × 1.0417/100

Interest = $9.20

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Answer: you should watch a quick video about it :)

Step-by-step explanation:

Answer:

[tex]\$320.29[/tex]

Step-by-step explanation:

Determine the formula:

[tex]x - (x \times 0.66) = 108.90[/tex]

Solve for x to get the original price:

[tex]x - (x \times 0.66) = 108.90\\x - 0.66x = 108.90\\x(1-0.66) = 108.90\\x = \frac{108.90}{1-0.66}\\x = \frac{108.90}{0.34}\\x \approx 320.29[/tex]

Answer:

64

Step-by-step explanation:

Substitute the values so (3-2(-1/2))3

Then distribute so (3-(-1))3

Add since it's a double negative to get (4)3

And 4 cubed is 64

A. The lengths of the flower petals corresponding to the weeks 0, 1, 2, 3, 4, and 5 are 0, 3.09, 6.18, 9.27, 12.36, and 15.45, respectively.

B. The average rate of change of the function f(w) from week two to week five is 3.09.

C. The y-intercept of the function f(w) represents the initial length of the petal.

D. The reasonable domain to plot the growth function is week 0 to week 2.

The length of the flower petal and the weeks passed are denoted by f(w) and w. The equation of the function is given below.

f(w) = 3(1.03)w

The simplified function is f(w) = 3.09w.

The rate of change of the function from weeks 2 to 5 is calculated below.

R = [f(5) - f(2)]/(5 - 2)

R = [3.09*5 - 3.09*2]/3

R = 3.09*(5 - 2)/3

R = 3.09

The length of the flower petal at the end of the study was 3.48 cm. The length lies between the week 0 and the week 2.

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The equation of the line that has a slope of -2 and x-intercept of -1 in point slope form is y = -2(x + 1).

Linear equations can be represented in different form such as point slope form, slope intercept form, general form and standard form.

Therefore, let's represent the equation of the line in point slope form.

Using point slope form,

y - y₁ = m(x - x₁)

where

Therefore, the equation of the line has a slope of -2 and an x-intercept of -1.

The slope of a line is the change in the dependent variable with respect to the change in the independent variable.

The x-intercept is where a line crosses the x-axis. The x-intercept is the value of x when y = 0.

hence,

m = -2 and (-1, 0)

x₁ = -1

y₁ = 0

Therefore,

y - 0 = -2(x + 1)

y = -2(x + 1)

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The identification of the length of the missing section of each line, assuming that the lines are equally divided, is as follows:

a) The missing section is 24 units.

b) The missing section is 18 units.

c) The missing section is 10 units.

The missing sections can be computed using the mathematical operations of division and multiplication.

The product (quotient) of a division operation involves applying the divisor on the dividend using a division operand (÷).

The product of a multiplication operation applies the multiplier on the multiplicand using the multiplication operand (×).

a) The total units = 36

Division parts = 3

The units of each division = 12 (36/3)

The missing section = 24 (12 x 2)

b) The total units = 36

Division parts = 4

The units of each division = 9 (36/4)

The missing section = 18 (9 x 2)

c) The total units = 16

Division parts = 8

The units of each division = 2 (16/8)

The missing section = 10 (2 x 5)

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Answer:  

The area of the room is 34*21 = 714 ft^2

the cost of the carpet is $5 per square foot, so the cost to carpet the whole room will be

5*714 = $3570

Step-by-step explanation:

3570 is the cost of the largest circular area rug that will fit in Susie’s dining room.

The area of Rectangle is length times of width.

Given that, Circular area rugs are priced at $5 per foot based on the circumference of the carpet used.

We need to find  the cost of the largest circular area rug that will fit in Susie’s dining room.

The area of the room is 34×21 = 714 ft²

The cost of the largest circular area rug that will fit in Susie’s dining room

$5 per foot based on the circumference of the carpet

Multiply 5 with 714

5×714

3570

Hence, 3570 is the cost of the largest circular area rug that will fit in Susie’s dining room.

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Answer:

an odd number

Step-by-step explanation:

it always will be an odd number when you add an even and an odd number

Answer:

1.6repeat miles per minute

Step-by-step explanation:

I'm not totally sure, but i just divided 5/3 and that's how I got the answer

The greatest common factor, GCF, of 8y, -12x, and 4xy is 4

From the question, we are to determine the greatest common factor of the given expressions.

The given expressions are 8y, -12x, and 4xy

To determine the greatest common factor, we will express each of the expressions as a product of their factors.

8y = 2 × 2 × 2 × y

-12x = 2 × 2 × 3 × -x

4xy = 2 × 2 × x × y

From above, we can observe that the greatest common factor is

2 × 2

= 4

Hence, the greatest common factor is 4

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The equation of the line will be y = 12x -3 and the graph of the line with the given y-intercept and slope is shown below.

First, let us understand the slope intercept form of a line:

The equation of the line is written in the slope-intercept form, which is: y = mx + b, where m represents the slope and b represents the y-intercept.

We are given:

(0, −3), m = 12.

We need to determine the graph of the line with the given y-intercept and slope.

To find the value of b;

substitute the given values in the equation of the line, we will get;

y = mx + b

-3 = 12 *0  + b

b = -3

So, the equation of the line will be:

y = 12x -3

Thus, the equation of the line will be y = 12x -3 and the graph of the line with the given y-intercept and slope is shown below.

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Answer: 6 ways

Step-by-step explanation:

The value of n in the line segment is - 9 / 4.

The length of a line segment can be found as follows:

Two point of the line segment are 2n + 9 / 2 and 9 / 2. The distance of the line segment is 9 / 2.

Therefore, let's find n as follows:

9 / 2 - (2n + 9 / 2) = 9 / 2

9 / 2 - 2n - 9 / 2 = 9 / 2

9 / 2 - 9 / 2 - 2n = 9 / 2

- 2n = 9 / 2

cross multiply

-2n × 2 = 9

- 4n = 9

divide both sides by -4

n = 9 / -4

n = - 9 / 4

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Answer:

Step-by-step explanation:

Answer:804,000,000,000 & 8.0e+11

Step-by-step explanation:

logic

Answer:

x = -3

y = 1

Step-by-step explanation:

Desmos is free and it will graph for you.  See picture.

Answer:

3 and 9

Step-by-step explanation:

x+y=12

y-x=6

y-x=6

 +x.  +x

y=6+x

x+(6+x)=12

6+2x=12

-6.    -6

2x=6

/2. /2

x=3

3+y=12

-3.  -3

y=9

Hopes this helps please mark brainliest