q1: find the hexadecimal representation for each of the following binary numbers 1. 10101101 2. 00100111 q2: find the decimal representation for each of the following hexadecimal numbers 1. 8ef 2. 5ce q3: find the binary representation for each of the following decimal numbers 1. 53 2. 885 q4: find the answer for the following hexadecimal 1. 35 ab 2. aa – 22

The points jada score is 159.25.

Given that james scored 182 points while playing a video game and he scored 7 times as many points as jada scored.

Let x be the points scored by james and y be the points scored by jada.

The total points scored by james and jada is 182 points.

x+y=182    .....(1)

James scored 7 times many points as jada scored.

y=7x         .....(2)

So, there are two equations and two unkowns.

Firstly, we will substitute equation (2) in equation (1), we get

x+7x=182

8x=182

Divide both sides by 8, we get

8x/8=182/8

x=22.75

Further, we will substitute the value of x in equation (2), we get

y=7×22.75

y=159.25

Hence, the jada score 159.25 when james scored 182 points while playing a video game and ahe scored 7 times as many points as jada scored.

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Answer:

center: (4,1/2)

radius: .5

Step-by-step explanation:

Group the x and y variables and move the constant (16) to the other side

(x²-8x)+(y²-y)= -16

We need to do something called "completing the square" we do this by taking the b term, dividing it by two and then squaring it

so for (x²-8x) we would take (8/2)² and then add that to both sides we have

(x²-8x+16)+(y²-y+.25)= -16+16+.25

next, we need to factor the x and y groups

(x-4)²+(y-.5)²= .25

Now that we have our equation we can easily find the center and radius

the center is just the constant's sign flipped or (4,.5) and the radius is the square root of the constant on the other side or √.25= .5

The inverse of the matrix is A⁻¹ = 1/(ab) [0 1/b] assuming that a and b are both non-zero.

A matrix is a rectangular array of numbers, symbols, or expressions arranged in rows and columns. Matrices are used in mathematics, science, engineering, computer graphics, and many other fields to represent and manipulate sets of numbers or other data. A matrix is usually denoted by a capital letter, such as A, and its entries or elements are denoted by lowercase letters with subscripts, such as aij, where i denotes the row number and j denotes the column number.

Here,

To find the inverse of the matrix [a 0; 0 b], where a and b are non-zero, we can use the formula for the inverse of a 2x2 matrix:

               [d  -b]

1/det(A) * [-c a]

where A is the matrix we want to invert, det(A) is the determinant of A, and a, b, c, and d are the elements of A.

[a 0]

A = [0 b]

det(A) = (a * b) - (0 * 0)

= ab

So the inverse of A is:

[d  -b]

A⁻¹= 1/det(A)[-c a]

where d = 1/a and a = 1/b:

          [1/a  0]

A⁻¹ = 1/(ab) [0 1/b]

Thus, the inverse of the matrix [a 0; 0 b] is:

         [1/a  0]

A⁻¹ = 1/(ab) [0 1/b]

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The 50th percentile point for the social interactions of preschool children is 65.

To find the 50th percentile point, we need to calculate the median of the data. The median is the value that separates the lower half of the data from the upper half. To calculate the median, we first need to arrange the data in order and then find the middle value.

In this case, we have a frequency distribution, so we first need to convert it into a cumulative frequency distribution. The cumulative frequency is the total frequency of all the classes up to a given class. After converting the frequency distribution into a cumulative frequency distribution, we can find the median by using the formula:

Where N is the total number of data values, and Class width is the difference between the upper and lower class limits of a given class.

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Answer:

3/7

Step-by-step explanation:

Answer:

0.429 and 3/7

Explanation:

Answer:

Step-by-step explanation:

angle 1 and angle 2 add to 180 degree because they are supplementary angel and in supplementary angle sum of two angles is 180 degree

angle 1 and angle 3 is equal as they are vetically opposite angles and vertically opposite angles are always equal.

angle 3 and 4 add to 180 degree because they are supplementary angle and in supplementary angle sum of two angles id 180 degree.

angle 2 and angle 4 are equal because they are vertically opposite angles and vertically opposite angles are always equal.

By applying trigonometric reasons, Pythagorean theorem and the definition of circle arc, the measure of the arc ADC is approximately 15.858 centimeters.

Since AB and BC are tangent to the circle, then the triangles OAB and OBC are right angled. We can determine the measure of the angle AOC by using the following inverse trigonometric reason and Pythagorean theorem:

\(\theta = 2\cdot \tan^{-1}\left(\frac{\sqrt{10^{2}-4^{2}}}{4} \right)\)

θ ≈ 132.844°

And the measure of the arc ADC is found by the formula for the length of a circle arc:

s = θ · r     (1)

Where:

s = (2π - 132.844π/180) · (4 cm)

s ≈ 15.858 cm

By applying trigonometric reasons, Pythagorean theorem and the definition of circle arc, the measure of the arc ADC is approximately 15.858 centimeters.  

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The values of x in the quadratic inequality are x ≥ -4 and x ≥ 2

This is referred to as a mathematical relation that makes the use of a non-equal comparison for two numbers, sometimes it also uses a number line based on the sizes of the numbers for this comparison.

Some of the inequalities symbols are:

Symbol Meaning

Given the quadratic inequality;

x² + 2x - 8 ≥ 0

We have to determine the value(s) for x

Using factorization, we have to determine the pair factors of -8 that sums up to 2, they are 4 and -2

Substitute the values into the expression

x² + 4x - 2x - 8

Factor out the common terms

x(x + 4) - 2( x + 4)

We then have;

(x + 4) ( x -2) ≥ 0

The values for x are;

x + 4 ≥ 0

x ≥ -4

And

x - 2 ≥ 0

x ≥ 2

Thus, the values of x in the quadratic inequality are x ≥ -4 and x ≥ 2

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Linear regression forecasting is an algorithm used for identifying and predicting the future values of a dependent variable based on the independent variable.

The major restriction in linear regression forecasting is that it only takes into account the linear relationship between the dependent and independent variables.

The model assumes that the relationship between the dependent and independent variable is linear and not nonlinear. This assumption may not always be true because there might be cases where the relationship between the variables is non-linear, which can result in inaccuracies in the forecast.

The model's reliability is also based on the quality of the data used for regression analysis. If the data is incorrect, outdated, or incomplete, the accuracy of the model can be negatively affected. Another limitation is that the model assumes that the relationship between the dependent and independent variables is constant over time, which may not be true in the real world.

Also, linear regression is a parametric method that requires certain assumptions about the data, including the normality of the residuals and constant variance of the errors.Linear regression forecasts require data to be independent and unbiased and may not work well if data contains outliers or noise.

Linear regression cannot identify causality or differentiate between correlation and causality. Hence, it is recommended to use linear regression along with other techniques for better accuracy.

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Answer:

14 bars

Step-by-step explanation:

Mark me brainliest plz

Answer:

Step-by-step explanation:

If 7.5 % has green eyes, then 92.5% (the complement given by 100%-7.5%)  dont have green eyes. 92.5% of 120 is given by

0.925*(120)=111

111 students in the grade dont have green eyes.  

Answer:

yes

Step-by-step explanation:

Answer: x-6, x+3, x-3

Step-by-step explanation;

Split the equation into two.

x2(x-6)-9(x-6)

(x-6) is seen as one of the tiles. Now work on x2-9

x2-9 is a difference of squares meaning the last two are (x+3) and (x-3).

The absolute maximum value is 685 and the absolute minimum value is 82.

The given function is f(x) = 81 + x² defined on the interval [1, 18].

To find the absolute maximum and minimum values of the function on this interval, we need to find the critical points and the endpoints.

Firstly, we take the derivative of the function:

f'(x) = 2x

Setting f'(x) = 0, we get x = 0, which is not in the interval [1, 18]. Therefore, there are no critical points.

Next, we check the endpoints:

f(1) = 82
f(18) = 685

The absolute maximum value is 685 and the absolute minimum value is 82.

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your right its that one

Answer:

its d and e

Step-by-step explanation:

Answer:

Step-by-step explanation:

1.

d - 27 = 45

add 27

d = 72

2.

h - 114 = 28

add 114

h = 142

3.

-4 + x = 15

add 4

x = 19

4.

-39 + g = 72

add 39

g = 111

Answer:

yeah

Step-by-step explanation:

Answer:

x = 5

Step-by-step explanation:

-3(4x-8) = -36 ​

Divide each side by -3

-3/-3(4x-8) = -36 ​/-3

4x-8 = 12

Add 8 to each side

4x-8+8 = 12+8

4x = 20

Divide each side by 4

4x/4 = 20/4

x = 5

Steps to solve:

-3(4x - 8) = -36

~Distribute

(-3 * 4x) + (-3 * -8) = -36

~Simplify

-12x + 24 = -36

~Subtract 24 to both sides

-12x + 24 - 24 = -36 - 24

~Simplify

-12x = -60

~Divide -12 to both sides

-12x/-12 = -60/-12

~Simplify

x = 5

Best of Luck!

The probability that the selected person is a teaching assistant or a female is 29.

What is the probability?

A probability is a numerical representation of the likelihood or chance that a specific event will take place. Both proportions ranging from 0 to 1 and percentages ranging from 0% to 100% can be used to describe probabilities.

Here, we have

Given: The physics department of a college has 10 male professors, 7 female professors, 13 male teaching assistants, and 9 female teaching assistants.

We have to find the probability that the selected person is a teaching assistant or a female.

N(A OR B) = N(A) + N(B) - N(A AND B)

N(teaching assistant) = 13 + 9 = 22

N(females) = 7 + 9 = 16

N(teaching assistant and female) = 9

N(teaching assistant OR female) = N(teaching assistant) + N(females) - N(teaching assistant AND female)

N(teaching assistant OR female) = 22 + 16 - 9

N(teaching assistant OR female) =  29

Hence, the probability that the selected person is a teaching assistant or a female is 29.

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Answer:

I think 8

Step-by-step explanation:

Btw love your pfp tell meh if it’s wrong I’ll try and fix it

Answer:

5/18 m

Step-by-step explanation:

You are going to multiply length x width x Height

5/6 x 1/2 x 2/3

Answer:

the answer is 10

Step-by-step explanation:

*please give me brainliest, i only need four more*

Answer:

-10

I did the math

(-4)-6

Answer:

B

Step-by-step explanation:

It appears to be B because this quadratic function faces down (-ax^2) and the vertex or highest point of this function is when x=1. Thus, the interval of the domain that the function increases must be from negative infinity to 1, giving the answer B.

Answer:

  (b)  I, III

Step-by-step explanation:

The correct answer can be chosen based on your knowledge of the shape of the graph of f(x).

The leading coefficient of this quadratic function being positive tells you the graph will be a parabola that opens upward. The left branch of the parabola will extend to positive infinity, as will the right branch.

If there are x-intercepts, the x-values between those will be where the graph has crossed the x-axis and function values are negative.

The answer choices suggest that x=2 and x=5 are x-intercepts of the function's graph. These can be checked, if you like, by evaluating f(2) and f(5).

  f(2) = 2² -7·2 +10 = 4 -14 +10 = 0

  f(5) = 5² -7·5 +10 = 25 -35 +10 = 0

This means the function will be positive for x < 2 and for x > 5. These intervals are described by I and III.

The profit is £1,370. Then the percentage profit of the company will be 124.54%.

A monetary profit, particularly the distinction between the amount gained and the actual cost of purchasing, running, or creating anything.

The profit is given as,

Profit = Selling price - Cost price

The number of pins left after the donation to charity is given as,

⇒ (1 - 0.35) x 1,000

⇒ 0.65 x 1,000

⇒ 650 pins

The selling price when 60% are sold for £3 and 40% are sold for £5 is given as,

Selling price = 0.60 x 650 x £3 + 0.40 x 650 x £5

Selling price = £1,170 + £1,300

Selling price = £2,470

The cost price is given as,

Cost price = £1.10 x 1,000

Cost price = £1,100

The profit is given as,

P = £2,470 - £1,100

P = £1,370

Then the percent of profit is given as,

P = [(£1,370) / £1,100] x 100

P = 124.54%

The profit is £1,370. Then the percentage profit of the company will be 124.54%.

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The bracket should be placed 40 inches away from the vertex (0,0) looking at the equation y=1/160x^2 models a solar cooker.

The equation with a vertex is : y = ax²

We know that the focus of a parabola is normally at the point (h, k + p), where (h, k) is the vertex of the  parabola  and 'p' is the distance between the vertex and the focus.  

Since the vertex at the origin is  (0,0), the parabolic equation then becomes;

y = (1/4p)x²

1/4p = 1/160

4p = 160

p = 160 ÷ 4

p = 40

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Answer:

$58.45

Step-by-step explanation:

10/6= 1.67

One can cost $1.67

1.67*35= $58.45

Thirty-five cans cost $58.45

Hope this helps. Have a great day. May it be filled with joy and happiness.

Answer:

1:2

Step-by-step explanation:

The angle between the vectors a and b is approximately 48 degrees.

To find the angle between two vectors a and b, we can use the formula:

cos θ = (a · b) / (|a| |b|)

where a · b is the dot product of a and b, and |a| and |b| are the magnitudes of a and b, respectively.

First, let's find the dot product of a and b:

a · b = (i)(4) + (2j)(0) + (-2k)(-3) = 4 + 6 = 10

Next, let's find the magnitudes of a and b:

|a| = √(1^2 + 2^2 + (-2)^2) = √9 = 3

|b| = √(4^2 + 0^2 + (-3)^2) = √25 = 5

Substituting these values into the formula for cos θ, we get:

cos θ = 10 / (3 * 5) = 2/3

To find the angle θ, we can take the inverse cosine (cos^-1) of 2/3:

θ = cos^-1(2/3) = 48.19 degrees

Therefore, the angle between the vectors a and b is approximately 48 degrees.

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