Which of the expressions below is equal to 6 (2 + 2)? Select all that apply. A) (6 x 2) + (6 x 2) B) 6 x 2 + 2 C) 12 x 2 D) 6 x 4

Answer:

50°

Step-by-step explanation:

Complementary angles sum to 90° , then

complement = 90° - 40° = 50°

Step-by-step explanation:

C and D are the correct objectives

A2 + 4a√b + 4b

____________

A2-4b

 By rationalizing the Denominator of \(\frac{a+\sqrt{4b} }{a-\sqrt{4b}}\)  we get \(\frac{a^{2} +2a\sqrt{4b} + 4b}{a^{2} -4b}\)

A radical or imaginary number can be removed from the denominator of an algebraic fraction by a procedure known as o learn more about . That is, eliminate the radicals from a fraction to leave only a rational integer in the denominator.

To rationalise multiply numerator and denominator with \(a+\sqrt{4b}\) where a is an integer and b is a prime number.

we get  \(\frac{a+\sqrt{4b}}{a-\sqrt{4b}} * \frac{a+\sqrt{4b}}{a+\sqrt{4b}}\)

\(= \frac{(a+\sqrt{4b})^{2} }{a^{2} -(\sqrt{4b})^{2} }\)

by solving we get \(=\frac{a^{2} +2a\sqrt{4b} + 4b}{a^{2} -4b}\)

By rationalizing the Denominator of \(\frac{a+\sqrt{4b} }{a-\sqrt{4b}}\)  we get \(\frac{a^{2} +2a\sqrt{4b} + 4b}{a^{2} -4b}\)

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a) T(p(x)) = xp(x) is not injective. b) T(p(x)) = d/dx(p(x)) is neither injective nor surjective. The answers do not contradict Proposition 2.4.10 as the dimensions of V are the same in both cases.



a) In the case of T(p(x)) = xp(x), T is not injective. To see this, consider two polynomials p1(x) and p2(x) such that p1(x) ≠ p2(x). However, if we evaluate T(p1(x)) and T(p2(x)), we find that T(p1(x)) = xp1(x) and T(p2(x)) = xp2(x). Since the degree of a polynomial determines its term with the highest power, the polynomials p1(x) and p2(x) can have different degrees, resulting in different terms of highest power. Therefore, T(p1(x)) and T(p2(x)) can never be equal, and T is not injective.

b) For T(p(x)) = d/dx(p(x)), T is neither injective nor surjective. Taking the derivative of a polynomial changes its degree, so two different polynomials can have the same derivative. Therefore, T is not injective. Furthermore, not all polynomials have derivatives, such as constant polynomials. Hence, T is not surjective.

c) The answers do not contradict Proposition 2.4.10. The proposition states that a linear transformation T: V -> W is injective if and only if it is surjective when dim(V) = dim(W). However, in both parts a) and b), the vector space V is the same in the domain and codomain. Therefore, the dimensions of V in both cases are the same. However, the injectivity and surjectivity of T differ. Thus, the answers align with the proposition, as it does not guarantee that a linear transformation is both injective and surjective, only that they are equivalent conditions when the dimensions are the same.

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Answer:

10

Step-by-step explanation:

1:5

10:50

Answer:

10

Step-by-step explanation:

5 minutes = 1 area

→ Divide the 50 by the 5

50 ÷ 5 = 10

→ Multiply this by the area

10 × 1 = 10

Answer:

0.333...

Step-by-step explanation:

since it's forever repeating it still counts as rational

The measure of arc BC in circle E, inscribed in triangle BCD with angle DBC measuring 51 degrees, is 102°.

In a circle, an inscribed angle is equal to half the measure of its intercepted arc. Since BD is a diameter, angle DBC is a right angle, and the intercepted arc BC is a semicircle. Therefore, the measure of arc BC is 180°.

However, we are given that angle DBC measures 51 degrees. In an inscribed triangle, the measure of an angle is equal to half the measure of its intercepted arc. So, angle DBC is half the measure of arc BC, which means arc BC measures 2 times angle DBC, or 2 * 51° = 102°.

Hence, the measure of arc BC is 102°.

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Inscribed circle E is formed by triangle BCD, with BD as the diameter. DC and CB are secants, and angle DBC is 51 degrees. We need to find the measure of arc BC.

When a triangle is inscribed in a circle, the measure of an angle formed by two secants that intersect on the circle is half the measure of the intercepted arc.

In this case, angle DBC is 51 degrees, which means the intercepted arc BC has twice that measure. Therefore, the measure of arc BC is 2×51=102 degrees.

To understand why this relationship holds, we can use the Inscribed Angle Theorem. According to this theorem, an angle formed by two chords or secants that intersect on a circle is equal in measure to half the measure of the intercepted arc.

In our scenario, angle DBC is formed by secants DC and CB, and it intersects the circle at arc BC. According to the Inscribed Angle Theorem, angle DBC is equal to half the measure of arc BC.

Hence, if angle DBC is 51 degrees, the measure of arc BC is twice that, which gives us 102 degrees.

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Answer:

1 cone

Step-by-step explanation:

2. rectangular prism

Answer:

the first one is a cone

Step-by-step explanation:

the second one is a rectangular prism

The maximum rate of change of function f at the given point occurs in the direction of the gradient vector.

To find the maximum rate of change of a function f at a given point, we need to compute the gradient of the function and evaluate it at that point. The gradient represents the direction of steepest ascent, and its magnitude indicates the maximum rate of change.

By finding the partial derivatives of f with respect to each variable and evaluating them at the given point, we obtain the components of the gradient vector. The maximum rate of change occurs in the direction of this gradient vector. Without the specific function and point, it is not possible to determine the exact maximum rate of change or its direction.

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Step-by-step explanation:

6x-2=4x+2

6x-4x=2+2

2x=4

X=4/2

X=2

Answer:

the solution is X=-1/10 X=1/10

Step-by-step explanation:

Vectors that appear to be equal is OB, m, o', p and qin, r, and s.

Let's discuss it further below.

In this question, vectors m through t are given in the figure. There are eight vectors: m, n, o, o', p, q, r, and s. The question asks to identify the groups of vectors that appear to be equal.

From the given figure, we can see that m and o' are parallel to each other and are of the same length. Thus, they are equal to each other. Also, vectors p and q are parallel to each other and are of the same length. So, they are equal to each other. Thus, we can conclude that m, o', p, and q are equal to each other.

Then, vectors n and r are parallel to each other and are of the same length. Thus, they are equal to each other. Also, vectors r and s are parallel to each other and are of the same length. So, they are equal to each other. Thus, we can conclude that n and r and s and r are equal to each other.

Therefore, the groups of vectors that appear to be equal are OB, m, o', p and qin, r, and s.

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Answer:

I would say the answer is c p=6n+18 because im thinking you are dealing with input-output

Step-by-step explanation:

Angles corresponding with ∠8 are ∠4 and ∠12.

In geometry, corresponding angles are angles that are in the same relative position at the intersection of two lines when a third line crosses them. When two lines are intersected by a third line, they form pairs of corresponding angles that are congruent, meaning they have the same measure.

In the given figure;

Lines r,s,t and u are parallel lines.

Angles ∠8 and ∠12 are in corresponding angle  ( line t and u are parallel ands line intersect it)

Angle ∠4 and ∠8 are corresponding angle (line r and s are parallel and t line intersect it)

Hence, Angles corresponding with ∠8 are ∠4 and ∠12.

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the upper bound for the surface area of the cube.​ is 14 m².

Volume of cube = 3.37 m³

We know the formula is:

V = a³ (where a is the side of the cube)

a³ = 3.37 m³

Cube rooting both the sides, we get that:

a = ∛3.37 m

Surface area will be:

A = 6 a²

A = 6 (∛3.37 m)²

A =6 (2.25 m²)

A = 13.5 m²

A ≈ 14 m²

Therefore, we get that, the upper bound for the surface area of the cube.​ is 14 m².

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The answer is: a. Yes, the forecast fails the bias test.

To determine whether the forecast fails the bias test, we need to compare the Average Error (AE) with zero.

If the AE is significantly different from zero, it indicates the presence of bias in the forecast. If the AE is close to zero, it suggests that the forecast is unbiased.

In this case, the Average Error (AE) is -2.0, which means that, on average, the forecast is 2.0 units lower than the actual values. Since the AE is not zero, we can conclude that there is a bias in the forecast.

Therefore, the answer is:

a. Yes, the forecast fails the bias test.

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Answer:

0.04166666666 i think

Step-by-step explanation:

Answer:

$60

Step-by-step explanation:

Let's say we need t $2 bills and v $5 bills.

We need 9 more $2 bills than $5 bills, so:

t = 9 + v

We also know that the amount of money in t $2 bills is 2 * t = 2t. The amount of money in v + 9 $5 bills is 5 * (v + 9) = 5v + 45. These amounts are equal:

5v + 45 = 2t

Plug v + 9 in for t in 5v = 2t + 18:

5v = 2t + 18

5v = 2 * (9 + v) + 18

5v = 18 + 2v + 18

3v = 36

v = 12

We have 12 $5 bills, so that total cost is 12 * 5 = $60.

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Answer : The term used for statistical techniques that use sample data to draw conclusions about the population from which the sample was obtained is called inferential statistics

Explanation : The term used for statistical techniques that use sample data to draw conclusions about the population from which the sample was obtained is called inferential statistics.

Inferential statistics are used to make generalizations or predictions about a population based on the analysis of a sample.

In conclusion, inferential statistics is a powerful tool that allows us to draw meaningful conclusions about populations based on sample data. It is important to use appropriate statistical methods to ensure that the inferences we draw are valid.

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Answer: $5.5

Step-by-step explanation:

Here is the complete question:

L.B. Johnson Middle School held a track and field event during the school year. The chess club sold various drink and snack items for the participants and the audience. Altogether, they sold 486 items that totaled $2,673 a. If the chess club sold each item for the same price, calculate the price of each item. b. Explain the value of each digit in your answer to a using place value terms

Item sold = 486

Total amount = $2673

Price of each item = Total amount/items sold

= 2673/486

= $5.5

Each item costs $5.5.

5.5 = 5 units and 5 tenths.

The first number after the decimal point by the right is the tenths.

Answer:

y + 21 = - 4(x - 7)

Step-by-step explanation:

The equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

Calculate m using the slope formula

m = \(\frac{y_{2}-y_{1} }{x_{2}-x_{1} }\)

with (x₁, y₁ ) = (7, - 21) and (x₂, y₂ ) = (- 4, 23)

m = \(\frac{23+21}{-4-7}\) = \(\frac{44}{-11}\) = - 4

Using m = - 4 and (a, b) = (7, - 21), then

y - (- 21) = - 4(x - 7), that is

y + 21 = - 4(x - 7)

Answer:

The first one (x=1 and y=1/2)

Step-by-step explanation:

The first table is the only one that has a constant rate of change.  The x value increases by 1, and the y value increase by 1/2.

Hope this helped :)

Answer:

The first one where x increases by 1 and y increases by 1/2.

Step-by-step explanation:

To find the equation, 1/2=1+b

Solve for b

1/2-1=-0.5

B=-0.5

Now, solve for x

1/2=x-0.5

As you can already see in the table, x increase by 1, so no need to even solve.

The equation would be y=1x-0.5 (I’ll post the graph in the picture to prove it is linear.

A linear equation is an equation of a straight line, which means that the degree of a linear equation must be 0 or 1 for each of its variables. In this case, the degree of variable yy is 1 and the degree of variable x is 1.

The value of (ΣX)² for the scores 1, 5, 2 is:  

64

It is the representation of the sum of infinite or many values. And it is represented by the following symbol:

∑xi

The value of (ΣX)² for the scores 1, 5, 2 can be found by first finding the summation of the scores and then squaring the result.

Steps to follow:

Step 1: Find the summation of the scores.
            ΣX = 1 + 5 + 2 = 8

Step 2: Square the summation.
            (ΣX)² = 82 = 64

Therefore, the value of (ΣX)² for the scores 1, 5, 2 is 64.

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Answer:  0.000039

Step-by-step explanation: i us calculator

Answer:

0.000039.

Step-by-step explanation:

3.9 / 100,000

Move the decimal point 5 places to the left ( as there are 5 0's in 100,000)

filling in the zeroes as you move alomg.

So its  0.000039

Nominal, ordinal, interval, and ratio are measurement scales used in statistics to categorize and rank data.

Nominal, ordinal, interval, and ratio are four sorts of information estimation scales utilized in measurements.

Nominal scales are utilized to mark or classify information into particular gatherings, where each gathering is fundamentally unrelated and altogether comprehensive. Instances of ostensible information incorporate orientation, race, and occupation.

Ordinal scales include positioning information in a particular request, however the distinctions between values are not significant. Instances of ordinal information incorporate positioning motion pictures in view of their prominence or understudy execution on a test.

interval scales include positioning information in a particular request, however the distinctions between values are significant, and there is no obvious zero point. Instances of stretch information incorporate temperature, intelligence level scores, and time.

ratio scales are like span scales, however they have a genuine zero point, implying that values can be duplicated and partitioned. Instances of proportion information incorporate weight, level, and pay.

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The complete question is:

what is the nominal, ordinal, interval and ratio?

Answer:

a=14

Step-by-step explanation:

a= 32- (10) - (8)

a= 32-10-8

a=14

Answer:

3

Step-by-step explanation: