( 30 points ) help againnn !

Answer:

y=(3/2)x-5

Step-by-step explanation:

1=4k+b, -2=2k+b

b=1-4k, b=-2-2k

1-4k=-2-2k

k=3/2

1=4k+b

1=4(3/2)+b

b=-5

y=(3/2)x-5

Brillianst!!!!!!!please!!!!!!!

Answer:

y=(3/2)x-5

Step-by-step explanation:

There are total of 152 students in 5th grade, then the number of pencils altogether will be equal to 2,736 pencils.

The four basic operations of arithmetic can be used to add, subtract, multiply, or divide two or even more quantities.

They cover topics like the study of integers and the order of operations, which are relevant to all other areas of mathematics including algebra, data processing, and geometry.

As per the given information in the question,

Total number of students in 5th grade = 152

Amount of pencil each student have = 18

Then, the total number of pencils altogether,

= 152 × 18

= 2,736 pencils.

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x+(-2) >3

open the bracket

x-2>3

collect the like terms by taking 2 to the other side

x>3+2

x>6

Answer:

2.25

Because I was asked this question and got it righg

Step-by-step explanation:

Radius (h) = 2cm

side (p) =5 cm

base (b) =?

So now

b^2 = h^2 - p ^2

b^2 = 2^2 - 5^2

b^2 = 4 - 25

b^2 = 21

b =√－21

Hope it helped you

please mark me the brainliest

Answer:

do not k ow sorry hahaha drs kaka so zhbdbf ddb

Answer:

You can use 5 to simplify 5 and 15, giving you 1 and 3

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Answer:

Will cost 123 dollars.

Step-by-step explanation:

Find perimeter (50 m)

50 meters = 164 ft

164/10 ft = 16.4 ft

16.4 ft x 7.50 = 123 Dollars

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The surface area of the given figure is 44.75 sq. yd and the volume of the whole figure is 27.5 cu. yd.

What is surface area?

The surface area is a region filled by a two-dimensional flat surface. The surface area of a three-dimensional item is the space taken up by its outer surface. Square units are units used for both.

The formula for the surface area of the given figure = perimeter of a base * height

The formula for the Volume of a three-dimensional solid having uniform cross-section = area of base * height

Given:

length =  4 yd; breadth = 2.5 yd

The surface area of the given figure = surface area of the cuboid + surface area of a prism

  =  ( 2(4+2.5) * 2) + (3*2.5* 2.5)

  = 26 + 18.75

  = 44.75 sq. yd

The volume of the given figure = volume ( cuboid + prism)

                                                   = (4*2.5*2) + (1/2*1.5*4*2.5)

                                                  = (20) + (7.5)

                                                 = 27.5 cu. yd

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The absolute maximum value of f on R does not exist, while the absolute minimum value of f on R is 6.

To find the absolute maximum and minimum values of f on R, we need to consider the critical points in the interior of R and the points on the boundary of R.

First, we find the critical points by taking the partial derivatives of f with respect to x and y, and setting them equal to 0:

fx = 6x - 6 = 0, fy = 7 = 0

Solving these equations gives us the critical point (1, 0).

Next, we find the values of f at the corners of R:

f(0, 1) = 10, f(0, -1) = 22, f(2, 1) = 6, f(2, -1) = 18

Finally, we check the values of f on the boundary of R by parametrizing the boundary curve as (t, 1-t^2) for 0 ≤ t ≤ 2. Evaluating f at these points gives us a minimum value of 6 at t = 2.

Since there is no maximum value of f on R, we conclude that the absolute maximum value does not exist. The absolute minimum value of f on R is 6.

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The "best" solution z+ = A^+b is the one that minimizes the 2-norm of the residual vector r = b - Az. In general, not all right-hand sides b will have a unique solution z+, and even if there is a solution, it may not be exact (i.e., Az ≠ b).

To find the pseudoinverse of a matrix A, the first step is to take the singular value decomposition (SVD) of A, which can be written as A = UΣV^T, where U and V are orthogonal matrices and Σ is a diagonal matrix with nonnegative singular values. The pseudoinverse of A is given by A^+ = VΣ^+U^T, where Σ^+ is the same as Σ except that the nonzero elements of Σ are replaced by their inverses.

Next, the projection matrices are given by AtA and AA+, which are used to project a vector onto the column space and the row space of A, respectively.

The "best" solution z+ = A^+b is the one that minimizes the 2-norm of the residual vector r = b - Az. In general, not all right-hand sides b will have a unique solution z+, and even if there is a solution, it may not be exact (i.e., Az ≠ b).

Whether a solution is exact or unique depends on the rank of A and the number of linearly independent columns and rows. If the rank of A is equal to the number of columns, then the solution is unique, otherwise, the solution may not be unique.

Therefore, The "best" solution z+ = A^+b is the one that minimizes the 2-norm of the residual vector r = b - Az. In general, not all right-hand sides b will have a unique solution z+, and even if there is a solution, it may not be exact (i.e., Az ≠ b).

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The dimension of the board either 4 by 6 square inches or 6 by 4 square inches.

We know that,

The rectangle is 4 sided geometric shape whose opposites are equal in lengths and all angles are about 90°.

here,

let the length of the board be x, and width be w,

The perimeter of the rectangle board  = 20

2 (l + w) = 20

l + w = 10

l = 10 - w

Now,

area of the board = 24

l × w = 24

(10 - w)w = 24

10w - w² = 24

w² -10w + 24 =0

(w - 4)(w -6) = 0

So,

w = 4 or 6

Now,

Lengths = 10 - 4 or 10 - 6

             =  6 or 4

Thus, the dimension of the board either 4 by 6 square inches or 6 by 4 square inches.

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The marketing manager used a stratified sampling method.

In stratified sampling, the population is divided into distinct subgroups or strata based on certain characteristics, such as age groups in this case. The goal is to ensure that each stratum is represented in the sample proportionally to its size in the population. The manager divided her customers into three age groups, creating separate strata.

Next, the manager randomly selected a sample from each age group. By selecting the sample proportional to the number of customers in each group, she ensured that the sample represents the different age groups in the population accurately.

Stratified sampling is often used when there are known differences or variations within the population based on specific characteristics or attributes. It allows for a more representative sample by ensuring that each subgroup is adequately represented, increasing the reliability and accuracy of the findings.

Therefore, the marketing manager used a stratified sampling method to determine the cell phone model preferences among her customers based on their age groups.

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Answer:

128 ft³

Step-by-step explanation:

given the scale factor of 2 similar solids is a : b , then

ratio of volumes = a³ : b³

here a : b = 3 : 4

then 3³ : b³ = 3³ : 4³ = 27 : 64

let x be volume of larger solid then by proportion

\(\frac{27}{54}\) = \(\frac{64}{x}\) ( cross- multiply )

27x = 3456 ( divide both sides by 27 )

x = 128

the volume of the larger solid is 128 ft³

Answer:

\( {5x}^{4} + 3 {x}^{2} - 8x + 6\)

Step-by-step explanation:

Math

The estimated area of Alberta in square miles is equal to 278,250 mi².

In Mathematics, the area of a complex geometric shape can be calculated by decomposing geometric shape into two (2) or more polygons whose areas can then be easily determined.

By critically observing the image of the given complex geometric shape representing the area of Alberta (see attachment), we can logically deduce that it can be decomposed into two (2) polygons as follows:

Mathematically, the area of a trapezoid can be calculated by using this formula:

A = ½ × (a + b) × h

Where:

Mathematically, the area of a rectangle can be calculated by using this formula:

A = LW    

Where:

Therefore, the area of Alberta is given by the areas of both the trapezoid and rectangle;

Area of Alberta = LW + ½ × (a + b) × h

Area of Alberta = (180 × 760) + ½ × (760 + 470) × (410 - 180)

Area of Alberta = 136,800 + 141,450

Area of Alberta = 278,250 mi².

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The ship is approximately 14.879 miles away from the port, and its bearing from the port is approximately 26.35°.

To find the exact values of the ship's distance from the port and its bearing from the port, we can perform the necessary calculations.

Ship's movement on a bearing of 34.0°:

Horizontal component = 13.5 mi * cos(34.0°) ≈ 11.1764 mi

Vertical component = 13.5 mi * sin(34.0°) ≈ 7.3564 mi

Ship's movement due east:

Horizontal component = 3.7 mi

Vertical component = 0

Vector addition:

Horizontal displacement = 11.1764 mi + 3.7 mi ≈ 14.8764 mi

Vertical displacement = 7.3564 mi + 0 ≈ 7.3564 mi

Distance from the port:

Distance = √(Horizontal displacement² + Vertical displacement²)

= √(14.8764 mi² + 7.3564 mi²)

≈ √(221.142 m²)

≈ 14.879 mi

Bearing from the port:

Bearing = arctan(Vertical displacement / Horizontal displacement)

= arctan(7.3564 mi / 14.8764 mi)

≈ 0.4601 rad (in radians)

≈ 26.35° (in degrees)

The ship is approximately 14.879 miles away from the port. The ship's bearing from the port is approximately 26.35°.

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--The given question is incomplete, the complete question is given below " Aship leaves port on a bearing of 34.0° and travels 13.5 mi. The ship then turns due east and travels 3.7 mi. How tar is the ship from port, and what is its bearing from port?"--

Answer:

Just as the square root is a number that, when squared, gives the radicand, the cube root is a number that, when cubed, gives the radicand. Cubing a number is the same as taking it to the third power: 23 is 2 cubed, so the cube root of 23 is 2.

Step-by-step explanation:

Answer: the cube root would be finding 3 multiples square root would be two

184 people

groups of 13

How many vans needed to take the people to the hotel.

\( \frac{184}{13} \)

\( = 14.1538461538\)

\(nearest \: whole \: number = 14\)

therefore, they'll need 14 vans to take the people to the hotel.

answer= option B

Given the equation:

To solve this equation for x, we need to take the binary logarithm on both sides of the equation:

There are two important properties of logarithms (binary or any other kind):

The probability of observing any particular value for a four-degrees-of-freedom t-distribution is nearly zero, and the likelihood that a population item will have a value for this distribution is equal to 1.

When estimating the mean of a normal t-distribution from a small sample in statistics, the t-distribution with four degrees of freedom emerges as a continuous probability distribution.

Given that a t-value t-distribution can be any real number, the likelihood that a population item will have a value for a t-distribution with four degrees of freedom is equal to 1.

In other words, since the distribution is continuous and has an infinite number of possible values, the likelihood of detecting any specific value for a t-distribution with four degrees of freedom is infinitesimally small.

Therefore, The probability of observing any particular value for a four-degrees-of-freedom t-distribution is nearly zero, and the likelihood that a population item will have a value for this distribution is equal to 1.

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There are 9 possible outcomes  to buy two new pair of pants.

Combinations are mathematical operations that count the number of potential configurations for a set of elements when the order of the selection is irrelevant. You can choose the components of combos in any order.

Given:

we have the following Styles

Boot cut (B), Skinny (S), and Relaxed fit (R).

So, if her buys two paints then the possible combination he can take as

Boot cut x Boot cut

Skinny x Skinny

Relaxed fit x Relaxed fit

Boot cut x Skinny

Boot cut  x Relaxed fit

Skinny x Relaxed fit

Skinny x Boot cut

Relaxed fit x Boot cut

Relaxed fit x Skinny

Hence, there are 9 possible ways.

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Step-by-step explanation:

The way to solve the problem would be just add the two number as 11+4 =15.

This would avoid the tedious process first drawing the number line and then counting each number to reach the same answer, which could be easily reached by just adding the two numbers.

\(\huge\text{Hey there!}\)

\(\mathsf{2x^2}\\\\\mathsf{= 2(5)^2}\\\\\mathsf{= 2(5\times5)}\\\\\mathsf{= 2(25)}\\\\\mathsf{= 50}\\\\\\\huge\text{Thus, your answer is: \boxed{\mathsf{50}}}\huge\checkmark\)

\(\huge\text{Good luck on your assignment \& enjoy your day!}\)

Step-by-step explanation:

we all know that the teacher bought 25 tickets for the children and 5 for the adult children's tickets cost 4 shillings so we'll have to take 25 times for and adult tickets cost $6 so we'll have to take 5 * 6 will get 30 and 25 * 4 will get 100 total is equals to 130 so the teachers spent $130 buying the tickets hope this helps you.

Answer:

14.40 dollars

Step-by-step explanation:

72 divided in 5