find the length of BC

The solution for the equation x^2 - 10x = -100 is

The solution for the equation x^2 + 7x - 16 = 0 is

To complete the square for the equation x^2 - 10x = -100, we need to add and subtract  (b/2a)^2 = (10/2)^2 = 25 to both sides of the equation:

x^2 - 10x + 25 = -100 + 25

(x - 5)^2 = -75

x - 5 = ±√75i

x = 5 ± √(75)i

x = 5 ± 5√3 i

Therefore, the solutions are x = 5 + 5√3i and x = 5 - 5√3i.

For the equation x^2 + 7x - 16 = 0, we need to add and subtract (7/2)^2 = 49/4 to both sides of the equation:

x^2 + 7x + 49/4 - 49/4 - 16 = 0

(x + 7/2)^2 = 81/4

x + 7/2 = ±9/2

x = -7/2 ± 9/2

x = -8 or x = 1

Therefore, the solutions are x = -8 and x = 1.

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If the average is 85 minutes, then on the seventh day he skated for 115 minutes.

For a set of N values {x₁, x₂, ..., xₙ} we define the average as:

A = (x₁ + ... + xₙ)/N

Here we know that for four days, he skated for 1hr + 25min = 85 min

Then for 2 days he skated for 1hr + 10min = 70 min

And the seventh day he skated x minutes.

We know that the average is 85 min, then we can write the equation:

(4*85 + 2*70 + x)/7 = 85

x = 85*7 - 2*70 - 4*85

x = 115

He scated for 115 minutes.

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Answer:

$5920.00

Step-by-step explanation:

1. (6% ÷ 100)×4000

=240.

2. 240 interest per year

240×8 years

= $1920

3. $1920 + $4000= $5920.00

The amount of money you'll have at the end of the indicated time period is $5920.

Given

You invest $4000 in an account that pays a simple interest of 6% for 8 years.

The amount of money you'll have at the end of 8 years.

We know the formula of simple interest, substitute the values in it,

[tex]\text{Simple interest}=\dfrac{\text{P}\times\text{R}\times\text{T}}{100}[/tex]

Substitute all the values in the formula

[tex]\text{Simple interest}=\dfrac{\text{P}\times\text{R}\times\text{T}}{100}[/tex]

[tex]\text{Simple interest}=\dfrac{\text{4000}\times\text{6}\times\text{8}}{100}[/tex]

[tex]\text{Simple interest}=40\times6\times8[/tex]

[tex]\text{Simple interest}=1920[/tex]

Therefore,

The amount of money you'll have at the end of the indicated time period is:

[tex]= \$1920 + \$4000 = \$5920[/tex]

Hence, the amount of money you'll have at the end of the indicated time period is $5920.

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Answer: 1/3 or 33.33%

Step-by-step explanation:

30000000/90000000=1/3 or 33.33%

Answer:

the answer is very simple the answer would be, 5 giga horse power every hour, 5/60*360= 30, the answer is 30m/s2

Step-by-step explanation:

according to formula

Answer: 8 books

Step-by-step explanation:

y= how much shelf space take up (inches)

x= # of books

y=2x

in this situation 16=y

16=2x

divide both sides by 2

8=x

Answer:

Leg 1 = 13

Leg 2 = 84

Hypotenuse = 85

Step-by-step explanation:

Hello!

The larger of the other two legs would be the hypotenuse, as the hypotenuse is the largest side in a right triangle (as stated in the problem.

The Pythagorean theorem states that the sum of the squares of the legs is equal to the square of the hypotenuse.

Let the smallest of the other legs be x, and the hypotenuse be x + 1.

The equation is: [tex]13^2 + x^2 = (x+1)^2[/tex]

We found the value for x, so we can find the hypotenuse by adding 1, which gives us 85.

Using derivative of a function

The derivative of a function is its limit as the change in the independent variable tends to zero.

Now, since we have the [tex]\lim_{h \to 0}\frac{cos(\pi + h) - (- 1)}{h}[/tex].

We know that the definition of the derivative of  a function f(x) is

[tex]f'(x) =\lim_{h \to 0}\frac{f(x + h) - f(x)}{h}[/tex]

Now, comparing both equations, we see that

f(x + h) = cos(x + h), f(x) = -1

Now, since f(x + h) = cos(x + h), we notice that f(x) must be a cosine function.

So, f(x) = cosx

Now, f(a) = -1

cosa = -1

a = cos⁻¹(-1)

= π

So, substituting this into the derivative equation, we have

[tex]f'(x) =\lim_{h \to 0}\frac{f(x + h) - f(x)}{h}[/tex]

[tex]f'(x) =\lim_{h \to 0}\frac{cos(x + h) - (-1)}{h}\\=\lim_{h \to 0}\frac{cos(x + h) - cos(x)}{h}\\=\lim_{h \to 0}\frac{cos(\pi + h) - cos(\pi )}{h}\\= -sin\pi \\= 0[/tex]

So,

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After answering the provided question, we can state that As a result, 145.62 square feet of glass are required to cover the entire pyramid.

A pyramid is a polygon formed by connecting points known as bases and polygonal vertices. For each hace and vertex, a triangle known as a face is formed. A cone with a polygonal shape. A pyramid with a floor and n pyramids has n+1 vertices, n+1 vertices, and 2n edges. Every pyramid is dual in nature. A pyramid contains three dimensions. A pyramid is made up of a flat tri face and a polygonal base that come together at a single point known as the vertex. A pyramid is formed by connecting the base and peak. The base's edges form triangle faces known as sides that connect to the top.

To determine how much glass is required to cover the entire pyramid, we must first determine the total surface area of the pyramid, including the base.

The formula for calculating the surface area of each triangular face is:

(1/2) x width x height

27.31 square feet = (1/2) x 7 feet x 7.79 feet

24 square feet = (1/2) x 6 feet x 8 feet

Simply multiply the length and width to find the area of the rectangular base:

7 feet by 6 feet equals 42 square feet

As a result, the total surface area of the pyramid is:

145.62 square feet = 2 (27.31 square feet) + 2 (24 square feet) + 42 square feet

As a result, 145.62 square feet of glass are required to cover the entire pyramid.

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Answer: 102.53

Step-by-step explanation:  I calculated all the numbers you gave me and then added them to get 102.53

Using the distance formula and the converse of the pythagorean theorem to determine whether the points are vertices of a right triangle :

22. The points (1,1), (4,4), and (1,4) form a right triangle.

23. The points (6,0), (6,4), and (2,4) form a right triangle.

24. The points (-2,1), (3,5), and (6,-2) does not form a right triangle.

The points (1,1), (4,4), and (1,4) form a triangle. We can use the distance formula to find the lengths of the three sides, and then use the converse of the Pythagorean theorem to determine whether it is a right triangle. The distance formula is:

d = √((x₂-x₁)² + (y₂-y₁)²)

So the lengths of the three sides are:

d₁ = √((4-1)² + (4-1)²) = √(27)

d₂ = √((1-1)² + (4-1)²) = √(9)

d₃ = √((1-4)² + (4-1)²) = √(18)

To check if it is a right triangle, we need to see if any of the sides squared equals the sum of the squares of the other two sides. If that is the case, then it is a right triangle. Otherwise, it is not. Checking the three possible combinations, we see that:

d₁² = 27

d₂² + d₃² = 9 + 18 = 27

Therefore, the triangle formed by the points (1,1), (4,4), and (1,4) is a right triangle.

Similarly for points (6,0), (6,4), and (2,4), the lengths of the three sides are:

d₁ = √((6-6)² + (4-0)²) = 4

d₂ = √((2-6)² + (4-4)²) = 4

d₃ = √((6-2)² + (0-4)²) = 4√2

To check :

d₁² + d₂² = 16 + 16 = 32

d₃² = 32

Therefore, the triangle formed by the points (6,0), (6,4), and (2,4) is a right triangle.

For points (-2,1), (3,5), and (6,-2) the lengths of the three sides are:

d₁ = √((3-(-2))² + (5-1)²) = √(41)

d₂ = √((6-3)² + (-2-5)²) = √(58)

d₃ = √((6-(-2))² + (-2-1)²) = √(73)

To check :

d₁² + d₂² = 41 + 58 = 99

d₃² = 73

Therefore, the triangle formed by the points (-2, 1), (3,5), and (6, -2) is not a right triangle.

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The weekly median income of a female with an advanced degree is 1,323.

What is a median?

The median, which is the centre value in a sorted, ascending or descending list of numbers, can better describe a data set than the average.

We are given three tables representing different data. The table 1 represents the total data, table 2 represents the data relating to men and the last table represents the data relating to female.

We are asked weekly median income of a female with an advanced degree.

So, from table 3 we get this data wherein the weekly median income of a female with an advanced degree is given as $1,323.

Hence, the  weekly median income of a female with an advanced degree is 1,323.

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Answer:8

Step-by-step explanation:

if x>7 it means x is have to be bigger than 7

in this case,

6<7

5<7

8>7

which is answer.

Answer:

Step-by-step explanation:

If a straight line falling on two other straight lines makes the interior angles on the same side less than two right angles

Using arithmetic progression, number of logs in 6th row are 33.

We can use the information that each row has 5 fewer logs than the row below it to create a sequence of the number of logs in each row. Let's call the number of logs in the first row "a" (which we know is 58 logs). Then, the number of logs in the second row will be "a - 5", the number of logs in the third row will be "(a - 5) - 5" or "a - 10", and so on.

So, we have the sequence of the number of logs in each row as:

a, a - 5, a - 10, a - 15, a - 20, ...

To find the number of logs in the 6th row, we need to find the 6th term in this sequence. We can use the formula for the nth term of an arithmetic sequence:

an = a₁ + (n - 1)d

where an is the nth term, a1 is the first term, n is the number of the term we want to find, and d is the common difference between terms (which is -5 in this case, since each row has 5 fewer logs than the row below it).

Substituting the given values, we get:

a₆ = a₁ + (6 - 1)(-5)

= a - 25

So, the number of logs in the 6th row is a - 25. Since we know that a is 58 logs, we can substitute and simplify:

a - 25 = 58 - 25 = 33

Therefore, the answer is (b) 33.

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Answer:

the answer is most certainly 21

Step-by-step explanation:

The cost increases by $10 for each ton of sugar being transported. This can be seen from the fact that for every 1 ton increase in weight, the cost increases by $10. And the slope of the line is $10/ton.

(a) To calculate the cost increase per ton of sugar being transported, we need to find the change in cost when the weight of sugar increases by 1 ton.

Looking at the graph, we can see that the cost increases from $20 to $30 as the weight of sugar increases from 1 ton to 2 tons. Therefore, the cost increase per ton of sugar is:

$30 - $20 = $10

So the cost increases by $10 for each ton of sugar being transported.

(b) The slope of the line can be calculated using the formula:

slope = (change in y) / (change in x)

where y is the cost and x is the weight of sugar being transported.

Since the line is perfectly horizontal, the change in y is zero for any change in x. Therefore, the slope is:

slope = 0 / (change in x) = 0

So the slope of the line is zero, which means that the cost does not change as the weight of sugar being transported changes.

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Answer:

The volume of a cone is given by the formula V = 1/3πr²h, where r is the radius of the circular base and h is the height of the cone.

Since the diameter of the circular base is 18 inches, the radius is 9 inches. The height of the cone is 3 inches.

Substituting the values in the formula, we get:

V = 1/3π(9²)(3) V = 81π/3 V = 27π

Therefore, the exact volume of the cone is 27π cubic inches.

Answer:

Step-by-step explanation:

The solution of the composite function (f. g)(x)  in standard form is x⁵ - 2x³ + 2x² - 8x + 4.

The function (f . g)(x) is a composite function. Composite function is a function that depends on another function. In other words, composite function is a function that is within another function

Therefore, let's solve the composite function as follows:

f(x) = x³ - 4x + 2

g(x) = x² + 2

Hence,

(f. g)(x) = f(x) × g(x)

f(x) × g(x) = (x³ - 4x + 2)(x² + 2)

f(x) × g(x) = x⁵ + 2x³ - 4x³ - 8x + 2x² + 4

f(x) × g(x) = x⁵ - 2x³ + 2x² - 8x + 4

Therefore,

(f. g)(x) = x⁵ - 2x³ + 2x² - 8x + 4

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Answer:It would be 40•.25=10

Step-by-step explanation: which means 40-10=30 so it’d be .25 and you’d move the decimal over 2 spots so it’d be 25% off

Answer:

y=y^2

Step-by-step explanation:

because you have to change X into y

After answering the provided question, we can conclude that So the ratio of red apples to all the apples in the basket is 5:14.

In mathematics, ratios show how frequently one number is contained in another. For example, if there are 8 oranges and 6 lemons in a fruit dish, the ratio of oranges to lemons is 8 to 6. In a similar vein, the orange-to-whole-fruit ratio is 8, while the lemon-to-orange ratio is 6:8. A ratio is an ordered pair of numbers a and b expressed as a / b, where b is not zero. A ratio is an equation that equates two ratios. For example, if there is one boy and three girls (for every boy she has three girls), 3/4 are girls and 1/4 are boys.

(a) The ratio of green apples to all the apples in the basket is:

Green apples : Total apples = 9 : (9+5) = 9 : 14

So the ratio of green apples to all the apples in the basket is 9:14.

(b) The ratio of red apples to all apples in the basket is:

Red apples : Total apples = 5 : (9+5) = 5 : 14

So the ratio of red apples to all the apples in the basket is 5:14.

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Answer:

(-6,-3), (3,6), and (3,-3)

Step-by-step explanation:

the triangle has 3 points: (-2,-1), (1,2), and (1,-1)

for (x,y) => (3x,3y)

then

(-2,-1) => (-6,-3)

(1,2) => (3,6)

(1,-1) => (3,-3)

so you should draw the triangle with 3 points: (-6,-3), (3,6), and (3,-3)

Answer: 18/27 or 2/3

Step-by-step explanation: trust me

The answer of the given question based on the finding the adjoint of M is 16  -4  -33

  -12  -5  -12.

In linear algebra, a cofactor is a scalar value that can be computed for each element of a square matrix. To find the cofactor of a specific element of a matrix, we first remove the row and column containing that element, and then compute the determinant of the remaining matrix. The sign of the cofactor depends on the position of the element within the matrix: it is positive if the sum of the row and column indices is even, and negative if the sum is odd.

The cofactor matrix of a given matrix is obtained by replacing each element of the matrix with its corresponding cofactor. Cofactor matrices are useful in computing the inverse of a matrix and in solving systems of linear equations.

The adjoint of  matrix is  transpose of its co-factor matrix.

First, we need to find the transpose of the co-factor matrix:

16  -12

-4   -5

-33  -12

Therefore, the adjoint of M is:

16  -4  -33

-12  -5  -12

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Answer:

v  = 40 cm

w  = 126

x  = 30

y  =  63 cm

Step-by-step explanation:

So are given that ΔBIG is similar to ΔMOP. This means that their respective angles are the same measurements, but different side lengths. By definition of similar triangles, their respective side lengths are equal in proportion.

∠I corresponds to ∠O, so their measurements are equal. w = 126°.

∠B corresponds to ∠M, so their measurements are also equal. We don't know the angle measurement for x, but we have all the angles for two similar triangles, so we can find the measure of the third angle. The total angle measure for any triangle is 180°.

x = 180 - 24 - 126

x = 30°

Now that we have all the angle measurements, we can proportions to calculate the lengths of the unknown sides. The proportion of ΔBIG to ΔMOP can be calculated using the corresponding side length for each triangle.

Segment BG corresponds to segment MP. The proportion of BG to MP is:

48/72. Proportions are fractions, so this ratio can be simplified to 2/3 (divide by 24 on top and bottom).

Now we know that the ratio of ΔBIG to ΔMOP is 2/3.

Segment BI (aka v) = (2/3) * 60 cm

v = 40 cm

Segment PO (aka y) * (2/3) = 42 cm

y = 42 * 1.5

y = 63 cm

Answer: It is 180

Step-by-step explanation:

The vοlume οf the cοne is apprοximately 205.9 cubic inches.

A cοne is a shape fοrmed by using a set οf line segments οr the lines which cοnnects a cοmmοn pοint, called the apex οr vertex, tο all the pοints οf a circular base(which dοes nοt cοntain the apex). The distance frοm the vertex οf the cοne tο the base is the height οf the cοne.

The diameter οf the base is twice the radius, sο:

Diameter = 2 x Radius = 2 x 3.5 inches = 7 inches

The height οf the cοne is twice the diameter, sο:

Height = 2 x Diameter = 2 x 7 inches = 14 inches

The vοlume οf a cοne can be fοund using the fοrmula:

Vοlume = (1/3) x π x Radius² x Height

Substituting the given values, we get:

Vοlume = (1/3) x π x (3.5 inches)² x (14 inches)

Simplifying, we get:

Vοlume = (1/3) x π x 12.25 inches² x 14 inches

Vοlume = 205.9 cubic inches (rοunded tο οne decimal place)

Therefοre, the vοlume οf the cοne is apprοximately 205.9 cubic inches.

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The majority of the marina's bolts are white. The remaining bolts are divided into 4/7 blue and the remainder red. There are 84 vessels at the marina if there are nine red boats.

Let's start by finding the fraction of bolts that are not red:

Fraction of white bolts: 3/4

Fraction of bolts that are not white: 1 - 3/4

Fraction of bolts that are not white = 4-3/4

Fraction of bolts that are not white = 1/4

Fraction of blue bolts: 4/7 of 1/4

Fraction of blue bolts = 4/28

Fraction of blue bolts = 1/7

Fraction of red bolts: 1/4 - 1/7

Fraction of red bolts = 7-4/28

Fraction of red bolts = 3/28

We know that there are nine red boats, which is equal to 3/28 of the total number of bolts. So we can set up an equation to solve for the total number of bolts:

3/28x = 9

Multiplying both sides by (28/3), we get:

x = (28/3) * 9

x = 28 * 3

x = 84

Therefore, there are 84 boats in the marina.

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