Explain why (−4) × (−5) = 20. Use any logic such as an example from the Integer Game to support your reasoning.

Answer:

B) (4x+3)(16x²-12x+9)

Answer:

0.5

Step-by-step explanation:

First we need to find the total number of hats 4 green hats + 3 blue hats + 1 orange hat = 8 hats P( green hat) = green / total      

                                            = 4 / 8                    

                                              = 1/2  

Step-by-step explanation:

Given the angle 10 let's add 360 and see if the angle is in the interval.

\(10 + 360 = 370\)

However,

\(10 - 360 = - 350\)

So the coterminal angle is

-350

For question 2, subtract 360

\(180 - 360 = - 180\)

Answer:

work is shown and pictured

Answer:

(1,1.5)

Step-by-step explanation:

The unit rate is the rate per unit

Since the unit is by x and x = 1 that is the unit rate

I would appreciate it if you mark this answer as brainliest ( especially if it helped you alot!!) Thank you!

Answer:

226.2 in³ and 452.4 in³

Step-by-step explanation:

Volume of original shape:

Volume = base area x height
Volume = πr² x 2
Volume = π(6)² x 2
Volume = 113.10 x 2
Volume = 226.2 in³

Volume with same radius but double the height:

Volume = base area x height
Volume =  πr² x 2(2) ----------> multiplied by 2 because height is being doubled
Volume = 113.10 x 4
Volume = 452.4 in³

Answer:

t=11/13

Step-by-step explanation:

Answer:

1

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13

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why does it need to be 20 words ling

Answer:

60

Step-by-step explanation:

Thx for the points Imfaoo

Step-by-step explanation:

The constant of proportionality k is given by k=y/x where y and x are two quantities that are directly proportional to each other.

this is also called the slope of the line.

based on our equation y = 5.5x

y/x = 5.5

so, C is the right answer.

Answer:

yay u got your answer:))

but seriously what is your question?:))

Answer:

see below

Step-by-step explanation:

since the given figure is made up of six sides , the sum of all the interior angles can be calculated by the formula,

( n - 2) * 180°

( 6 - 2) * 180°

4 * 180°

720°

now the sum of measures of all the unknown angles would be 720° .So ,

7x - 8 + 4x + 46 + 5x + 6x + 12+ x+7+5x-9 = 720

28x + 48 = 720

28x = 720 - 48

28x = 672

x = 24

Hence ,

and we are done!

Answer:

Algebraically, f is even if and only if f(-x) = f(x) for all x in the domain of f. A function f is odd if the graph of f is symmetric with respect to the origin. Algebraically, f is odd if and only if f(-x) = -f(x) for all x in the domain of f   brainliest ?

A recursive definition for the set of all strings of a's and b's containing exactly two consecutive a's is :Base case: S(0) = {aa}
Recursive step: S(n) = {xaa | x ∈ S(n-1)} ∪ {xb | x ∈ S(n-1), b ∈ {a, b}}

This definition starts with the base case, where the set S(0) contains the smallest string with two consecutive a's, which is "aa". The recursive step generates new strings by adding an "a" or "b" before each string in the previous set S(n-1), while ensuring that the two consecutive a's requirement is maintained.

This process continues indefinitely, generating the desired set of strings with exactly two consecutive a's, such as {aa, aab, baa, aabb, baab, baab, bbaa, aabbb, baabb,...}.

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A(X)=(7-2x)(x+5)-(21-6x)(2x-1)

A(X)=(7x+35-2x²-10x)-(42x-21-12x²+6x)

A(X)= -2x²-3x+35+12x²+48x-21

A(X)=10x²+45x+14

Answer:

you are above average i think

Step-by-step explanation:

Answer:

Yes your IQ is really good and I think above average

Answer:

) Cluster sample.

Step-by-step explanation:

Here are the options

A) Multistage sample.

B) Stratified sample.

C) Cluster sample.

D) Simple random sample.

E) Convenience sample.

A cluster sample is when a population is divided into groups known as clusters. Samples are then randomly selected from this sample. It is a method of probability sampling used for large populations.

The airline first divided the population of travellers by months travelled. this is the cluster. From within the cluster, 10 samples are then chosen

Advantages of a cluster sample

Disadvantages of a cluster sample

Answer:

The correct equation is D

Answer:

B'...simply means those found in the universal set but not in set B.

So,B'={ 1,3,5,9}

Answer:

B'={1,3,5,9}

Step-by-step explanation:

The equation of the parabola with focus (2,5) and directrix x=18 is (x - 18)² + (y - 5)² = (y - (5 + (18 - 2) / 2))².

A parabola is a conic section, the intersection of a right circular conical surface and a plane parallel to a generating

straight line of that surface.

The focus of a parabola is a fixed point on the interior of a parabola used in the formal definition of the curve.

The directrix is a straight line perpendicular to the axis of symmetry and placed symmetrically with respect to the focus.

The axis of symmetry is the line through the focus and perpendicular to the directrix.

The vertex of a parabola is the point where its axis of symmetry intersects the curve. It is the point where the parabola changes direction or "opens

up" or "opens down.

The directrix is a fixed straight line used in the definition of a

parabola. It is placed such that it is perpendicular to the axis of symmetry and at a distance from the vertex equal to the

distance between the vertex and focus. It is the line that is equidistant to the focus and every point on the curve.Here's

the solution to the given problem:

The distance between the directrix and the focus is equal to p = 16 (since the directrix is x = 18, the parabola opens to the left, so the distance is measured horizontally)

The vertex is (h,k) = ((18+2)/2,5) = (10,5)

Then we can use the following formula: (x - h)² = 4p(y - k)

Substitute the vertex and the value of p. (x - 10)² = 64(y - 5)

Expand and simplify. (x - 10)² + (y - 5)² = 64(y - 5)

The equation of the parabola is (x - 10)² + (y - 5)² = 64(y - 5).

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Answer:

\(336\)

Step-by-step explanation:

\(8p3\)

Divide the first number's factorial by the factorial of the second number subtracted from the first number.

By permutation formula: \(np_r=\frac{n!}{(n-r)!}\) and Since n=8 and r=3 we can substitute the values and solve,

\(_np_r=\frac{n!}{(n-r)!}=\frac{8}{(8-3)!} =\frac{8*7*6*5*3*3*2*1}{5*4*3*2*1}\)

\(8*7*6=336\)

The Longest Increasing Subsequence (LIS) problem is a classic problem in dynamic programming. Given a sequence of numbers, the problem is to find the longest subsequence in which the numbers are in increasing order. For example, given the sequence {3, 1, 5, 2, 4}, the longest increasing subsequence is {1, 2, 4}, which has length 3.

The LIS problem can be solved using dynamic programming by defining an array to store the length of the longest increasing subsequence that ends at each position in the sequence. The array is initialized to 1, and then for each position i in the sequence, the length of the longest increasing subsequence that ends at i is calculated by finding the maximum length of any subsequence that ends at a position j < i and has a smaller value than the value at i. The final solution is the maximum length of any subsequence in the array.

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Answer:

4

Step-by-step explanation:

if you're talking about quadrants on a coordinate plane then it is 4:)

coordinate planes are separated into four quadrants (qI,qII,qIII,qIV) shaped like a plus sign, 2 positive quadrants and 2 negative.

Answer:

4! They are called quadrants and quad means 4 <3

Step-by-step explanation:

Answer:

f(n) = {1, 2,3,4,5,6...}

Answer:

f(n) = {1, 2,3,4,5,6.....}

Step-by-step explanation:

it said the top is even and the bottom is odd so all we have to do is keep on counting starting from 1 and it will make 1 even and 1 odd after each number

Answer:

Value 5

Step-by-step explanation:

The number of rows and columns of the Sudoku is not stated; so, I will assume it is 5 by 5, since there is only one gray square left to be occupied.

If 1 - 4 appears in each row and 1 - 4 appears in each column (take for instance, the attached Sudoku image), then the value that should be entered in the gray square is 5.

we have expressed log146 - log14 3 2 as a single logarithm in terms of natural logarithms, which is ln (2/3) / ln 14.

Using the properties of logarithms, we can simplify the given expression as follows:

\(log_{14}\)(6) = \(log_{14}\)(4) - \(log_{14}\)(\(3^{2}\))

= 1 - 2\(log_{14}\)(3)

So the expression log146 − log1432 can be written as \(log_{14}\)(6) = 1 - 2\(log_{14}\)(3).

The first step used the property \(log_{a}\) (b/c) =  \(log_{a}\)(b) -  \(log_{a}\)(c), and the second step used the property  \(log_{a}\)(b^c) = c \(log_{a}\)(b).

In simpler terms, we can say that the given expression is equivalent to subtracting the logarithm of \(3^{2}\) from the logarithm of 4, both to the base 14. We can then use the rules of logarithms to simplify the expression into a single logarithm of 6 to the base 14, with a coefficient of -2 in front of the logarithm of 3 to the base 14.

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Answer:

Area = 5 × 8

= 40 square units

Answer:

40^2

Step by Step Solution:

I counted the difference between the length and the width, which was 5 and 8, then using the formula for area, lw=a^2, I did 5(8)=40^2.  Some people leave out the squared part of the area, but 40^2 would be the most correct option if they do not square any of the answers, just put 40 that'll probably be accepted too.

The three angle bisector of a triangle intersect at a single point that point of concurrency of the angle of bisectors is called the incenter.

Given:

the 3 angle bisectors of a triangle intersect.

when three angle bisector of a triangle intersect then that point of concurrency is called incenter.

Incenter:

The incenter of a triangle is the intersection point of all the three interior angle bisectors of the triangle. In other words, it can be defined as the point where the internal angle bisectors of the triangle cross. This point will be equidistant from the sides of a triangle, as the central axis’s junction point is the center point of the triangle’s inscribed circle.

Incenter formula:

= (ax1+bx2+x3 / a+b+c  , ay1+by2+y3 / a+b+c).

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The area of the regular polygons with 12 sides(dodecagon) and 5 sides (pentagon) are 389.06 in² and 19.87 in² respectively.

Area of regular polygon = 1/2 × apothem × perimeter

perimeter = (s)side length of octagon × (n)number of side.

apothem = s/[2tan(180/n)].

11 = s/[2tan(180/12)]

s = 11 × 2tan15

s = 5.8949

perimeter = 5.8949 × 12 = 70.7388

Area of dodecagon = 1/2 × 11 × 70.7388

Area of dodecagon = 389.0634 in²

Area of pentagon = 1/2 × 5.23 × 7.6

Area of pentagon = 19.874 in²

Therefore, the area of the regular polygons with 12 sides(dodecagon) and 5 sides (pentagon) are 389.06 in² and 19.87 in² respectively.

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