which of the following results in expression 0.22x86

Answer:

y=12x-2

Step-by-step explanation:

(y-10)=12(x-1)

y-10=12x-12

y=12x-2

The method of critical regions is an alternative approach to hypothesis testing, used to validate a claim. This method is based on comparing the observed sample statistic to one or more critical values, predetermined by the desired significance level, that determine the rejection or acceptance of the null hypothesis.

To use this method, the researcher first establishes the critical regions, typically denoted by critical values or cutoff points. A decision to reject or fail to reject the null hypothesis is then made by comparing the observed statistic to the critical values. If the observed value is beyond one or more of the critical values, the null hypothesis is rejected. If the observed statistic falls within the critical regions, the null hypothesis is accepted.

The critical region method is sometimes used instead of the p-value method when the probability of a Type II error is more important than the probability of a Type I error. Additionally, this method can be used to compare multiple population means, whereas the p-value method is limited to comparing one population mean. Therefore, the critical region method can be used in addition to or instead of the p-value method, depending on the researcher's desired result.

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Given:

One of the angle of a triangle is 104°.

The objective is to find the missing angle x.

If two sides of a triangle are equal, then it is an isosceles triangle.

In an isosceles triangle, the angle formed by the equal sides is also equal.

Then, the value of angle x can be calculated angle sum property of triangle.

Hence, option (A) is the correct answer.

Answer:

10 because if you multiply 500 by 3 you get 1500 and how many times doe 150 go into it...10 times doing it backwards is sometimes easier :)

Step-by-step explanation:

Answer:

150n÷3=500

150n÷3×3=500×3

150n=1,500

150n÷150=1,500÷150

n=10

Plzzzzz give me Brainliest!  

Answer:

y = 8.9

Step-by-step explanation:

8^2 + y^2 = 12^2

64 + y^2 = 144

subtract 64 from both sides

y^2 = 80

square root both sides

y = square root 80

y = 8.9

Answer:

Step-by-step explanation:

Step-1: Add the ratios:

Step-2: Divide 800 by the sum of the ratios:

Step-3: Multiply 50 with each ratio:

Hence, the numerator '9's share is 450 and the denominator '7's share is 350.

Hoped this helped.

\(BrainiacUser1357\)

Sharing 800 in the ratio of 9:7 gives us two shares as 450 and 350 respectively.

A ratio is a pair of numbers, say x and y, written as x:y, said as x is to y, and used as the fraction x/y, where y ≠ 0.

We are asked to share 800 in the ratio of 9:7.

To do this, we denote the share as 9x and 7x respectively.

Sum of the shares = 9x + 7x = 16x.

This sum needs to be equal to the total we are asked to share, that is, 800.

∴ 16x = 800

Dividing both sides by 16, we get

16x/16 = 800/16

or, x = 50.

To determine each share, we multiply the value of x = 50.

∴ Shares are:

9x = 9 * 50 = 450

7x = 7 * 50 = 350

So sharing 800 in the ratio of 9:7 gives us two shares as 450 and 350 respectively.

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Answer:

a

Step-by-step explanation:

car is traveling faster

Answer:

56

Step-by-step explanation:

56 would be the arc. reasoning is because line CG form an arch of 56 and Angle A and C also form a angle of 34

The general solution of the differential equation y' = (y + (x² − y²)^(1/2))/ x is:

y = ± x × (e^(2C1) − 1)^(1/2), option

The given differential equation is:

y' = (y + (x² − y²)^(1/2))/ x

We have to determine the general solution of the given differential equation.

Using separation of variables, we have:

y' = (y + (x² − y²)^(1/2))/ xy'

  = y/x + (x² − y²)^(1/2)/xy/x dy

 = (y/x + (x² − y²)^(1/2)/x)dx

Let v = y/x

Then, y = vx

And, y' = v + xv'

By substituting the value of y in the given differential equation, we get:

v + xv' = v + (x² - v²)^(1/2)/xv' = (x² - v²)^(1/2)/x

By separating the variables, we get:

dx / (x² - v²)^(1/2) = dv / x

Integrating both sides, we get:

ln |x + (x² - v²)^(1/2)| = ln |v| + C1, where C1 is an arbitrary constant.

x + (x² - v²)^(1/2) = v × e^(C1)

Substituting v = y/x, we get:

x + (x² - (y/x)²)^(1/2) = (y/x) × e^(C1)

Squaring both sides, we get:

x² + x² − y² = y²e^(2C1)2x² = y² (e^(2C1) − 1)

By taking the square root, we get:

y = ± x × (e^(2C1) − 1)^(1/2)

Now, let y = x × z.

Then, z = (e^(2C1) − 1)^(1/2)

Using the method of integrating factors, we get:

∫ dx / x = ∫ dz / (e^(2C1) − 1)^(1/2)ln |x|

            = arcsin z + C2, where C2 is an arbitrary constant.

|x| = e^(arcsin z+C2)|x| = e^(C2) × e^(arcsin z)

Since z = (e^(2C1) − 1)^(1/2), we get:|x| = e^(C2) × (e^(2C1) − 1)^(1/2)

Thus, x = ± e^(C2) × (e^(2C1) − 1)^(1/2)

Also, y = ± x × (e^(2C1) − 1)^(1/2)

Therefore the correct answer is (e) None of the above.

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Answer:

5 units

Step-by-step explanation:

Count from point A to point B on the x-axis.

12 is the equivalent value of x from the diagram.

The given diagram is a line geometry. We are to determine the value of x from the diagram.

From the given diagram, we can see that the line m is parallel to line n. Hence the equation below will fit to determine the value of 'x'

132 + 3x + 12 = 180 (Sum of angle on a straight line)

3x + 144 = 180

3x = 180 - 144

3x = 36

x = 36/3

x = 12

Hence the value of x from the line diagram is 12.

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Answer:

4/3

Step-by-step explanation:

cuz its not the same?

The final statement is: a) the ball hits the ground after 2 seconds b) the highest point is 5 m 3) It takes t=1 to reach the highest point.

A quadratic equation can be written in the standard form as ax2 + bx + c = 0, where a, b, c are constants and x is the variable. The values of x that satisfy the equation are called solutions of the equation, and a quadratic equation has at most two solutions.

Given here: The height is given by y=10x-5x²

When height y=0 therefore

0=10x-5x²

5x²=10x

5x=10

x=2

The ball hits the ground after 2 seconds and the highest point is at t=1

with maximum height=5 m

Hence, the graph reaches its maximum point at (1,5)

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Answer:

Im pretty sure its 1

Step-by-step explanation:

If you meant 4^3*4^-3, then yeah, its 1

Answer:

−4−10+16

Step-by-step explanation:

−4-10+6+10

-4x-10y+16

Answer:Look Down 0D

Step-by-step explanation:I am sorry if this doesn't help but I dont know the answer???

a) The angle between vectors A and B is approximately 154.68 degrees.To find the angles between the vectors A and B,

we can use the dot product formula and the fact that the dot product of two vectors A and B is given by:

A · B = |A| |B| cos(θ)

where |A| and |B| represent the magnitudes of vectors A and B, respectively, and θ is the angle between them.

Let's calculate the angles for each case:

(a) A = 2î − 7ĵ, B = -5î + 3ĵ:

Using the dot product formula:

A · B = (2)(-5) + (-7)(3) = -10 - 21 = -31

The magnitude of A:

|A| = √(2^2 + (-7)^2) = √(4 + 49) = √53

The magnitude of B:

|B| = √((-5)^2 + 3^2) = √(25 + 9) = √34

Now, we can calculate the angle θ using the formula:

-31 = (√53)(√34)cos(θ)

Simplifying:

cos(θ) = -31 / (√53)(√34)

Using inverse cosine (arccos) to find θ:

θ = arccos(-31 / (√53)(√34))

The angle between vectors A and B is approximately θ = 154.68 degrees.

(b) A = 6î + 4ĵ, B = 3î − 3ĵ:

Using the dot product formula:

A · B = (6)(3) + (4)(-3) = 18 - 12 = 6

The magnitude of A:

|A| = √(6^2 + 4^2) = √(36 + 16) = √52 = 2√13

The magnitude of B:

|B| = √(3^2 + (-3)^2) = √(9 + 9) = √18 = 3√2

Now, we can calculate the angle θ using the formula:

6 = (2√13)(3√2)cos(θ)

Simplifying:

cos(θ) = 6 / (2√13)(3√2) = 1 / (√13)(√2)

Using inverse cosine (arccos) to find θ:

θ = arccos(1 / (√13)(√2))

The angle between vectors A and B is approximately θ = 23.38 degrees.

(c) A = 7î + 5ĵ, B = 5î − 7ĵ:

Using the dot product formula:

A · B = (7)(5) + (5)(-7) = 35 - 35 = 0

The magnitude of A:

|A| = √(7^2 + 5^2) = √(49 + 25) = √74

The magnitude of B:

|B| = √(5^2 + (-7)^2) = √(25 + 49) = √74

Now, we can calculate the angle θ using the formula:

0 = (√74)(√74)cos(θ)

Since the dot product is zero, it indicates that the vectors are orthogonal (perpendicular) to each other. In this case, the angle between vectors A and B is θ = 90 degrees.

Therefore, for the given cases:

(a) The angle between vectors A and

B is approximately 154.68 degrees.

(b) The angle between vectors A and B is approximately 23.38 degrees.

(c) The angle between vectors A and B is 90 degrees.

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Answer:

x is 226.154…

Step-by-step explanation:

1) x-14=y+196

x=y+196+14

x=y+210

2)x=14y

3) 14y=y+210 collect like terms together

14y-y=210

13y=210 divide both sides by 13

y=16.154

4)x=y+210 meaning:

x=16.154+210

=226.154

Answer:

1) What does it mean when a polynomial equation is in standard​ form?

All terms are on one side of the equation, and zero is on the other side.

2) When factoring 6x2−7x−20 by grouping, how should the middle term be rewritten?

It should be written as 8x−15x.

3) Is the given equation a quadratic equation? Explain.

x(x−6)=−5

The equation is a quadratic equation because there is an x2-term.

4) Which of the following factored forms given below represent the correct factorization of the trinomial x2+10x+16?

(2+x)(8+x)

5) Which of the following is an example of the difference of two​ squares?

x2−9

Step-by-step explanation:

I hope this helps you out ☺

A binomial whose first term and second term can be squared, and has a subtraction sign between both squared terms represents the difference of two squares, an example of the difference of two squares is:

A. \(x^2 - 9\)

Recall:

Thus, from the options given, option A: \(x^2 - 9\) is an example of a binomial that is the difference of two squares.

9 can be expressed as \(3^2\).

In summary, a binomial whose first term and second term can be squared, and has a subtraction sign between both squared terms represents the difference of two squares, an example of the difference of two squares is:

A. \(x^2 - 9\)

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Answer:

subtraction

Step-by-step explanation:

Answer:

Subtract 175.90-141.37

Step-by-step explanation:

A real Karen would have asked for the manager.

Answer:

(0, 4) and (-1, 0)

Step-by-step explanation:

Given system of equations:

\(\begin{cases}y=2x^2+6x+4\\y=-4x^2+4\end{cases}\)

Solve by substitution

Substitute the first equation into the second:

\(\implies 2x^2+6x+4=-4x^2+4\)

Add 4x² to both sides:

\(\implies 2x^2+6x+4+4x^2=-4x^2+4+4x^2\)

\(\implies 6x^2+6x+4=4\)

Subtract 4 from both sides:

\(\implies 6x^2+6x+4-4=4-4\)

\(\implies 6x^2+6x=0\)

Factor out 6x from the left side:

\(\implies 6x(x+1)=0\)

Therefore:

\(\implies 6x=0 \implies x=0\)

\(\implies x+1=0 \implies x=-1\)

To find the y-coordinates of the found x-values, substitute the found values of x into one of the equations:

\(x=0 \implies -4(0)^2+4=4 \implies (0,4)\)

\(x=-1\implies -4(-1)^2+4=0\implies (-1,0)\)

Therefore, the solutions to the system of equations are:

(0, 4) and (-1, 0)

Answer:

Solutions:

a) x = 0, y = 4 ⇒ (0, 4)

b) x = -1, y = 0 ⇒ (-1, 0)

Step-by-step explanation:

Given system of equations:

a) y = 2x² + 6x + 4

b) y = -4x² + 4

1. Substitute the value of y in the second equation into the first equation:

⇒ -4x² + 4 = 2x² + 6x + 4

2. Solve for x:

⇒ -4x² + 4 = 2x² + 6x + 4 [subtract 4 from both sides]

⇒ -4x² + 4 - 4 = 2x² + 6x + 4 - 4

⇒ -4x² = 2x² + 6x [subtract 2x² from both sides]

⇒ -4x² - 2x² = 2x² - 2x² + 6x

⇒ -6x² = 6x [subtract 6x from both sides]

⇒ -6x² - 6x = 6x - 6x

⇒ -6x² - 6x = 0 [factor out -6x from the equation]

⇒ -6x(x + 1) = 0

Two cases:

a)

⇒ -6x = 0 [divide both sides by -6]        

⇒ -6x ÷ -6 = 0 ÷ -6

⇒ x = 0

b)

⇒ x + 1 = 0 [subtract 1 from both sides]

⇒ x + 1 - 1 = 0 - 1

⇒ x = -1

3. Find the value of y by substituting the found x values into one of the given equations:

a) x = 0:

⇒ y = -4x² + 4

⇒ y = -4(0)² + 4

⇒ y = -4(0) + 4

⇒ y = = 0 + 4

⇒ y = 4

coordinate: (0, 4)

b) x = -1:

⇒ y = -4x² + 4

⇒ y = -4(-1)² + 4

⇒ y = -4(1) + 4

⇒ y = -4 + 4

⇒ y = 0

coordinate: (-1, 0)

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(I think that says 51...)

Basically all you do is multiply 51 by 4

 51

x  4

104

The answer (if those numbers are correct) is 104.

Answer:

amount of taffy made in 7 days = 4758.32 kg

average amount of taffy made per day = 4758.32 ÷ 7

answer = 679.76 kg

Answer:

679.76 kg of taffy

Step-by-step explanation:

Given: Ted's Taffy shops makes 4,758.32 kg of taffy a week. How much do they make a day?

First, divide the amount of taffy with 7 (a week):

4,758.32 kg / 7

= 679.76 kg of taffy

Therefore, Ted's Taffy Shop makes an average of 679.76 kg of taffy per day.

Answer:

-3ab

Step-by-step explanation:

-27/9= 3

(a^2)/a=a

(b^2)/b=b

∂z/∂s = 3cos(t)/y, ∂z/∂t = 3s*cos(t)/y - sin(s)/x (using the chain rule to differentiate each term and substituting the given expressions for x and y)

To find ∂z/∂s and ∂z/∂t using the chain rule, we start by finding the partial derivatives of z with respect to x and y, and then apply the chain rule.

First, let's find ∂z/∂x and ∂z/∂y.

∂z/∂x = ∂/∂x [ln(5x^3y)]

= (1/5x^3y)  ∂/∂x [5x^3y]

= (1/5x^3y) 15x^2y

= 3/y

∂z/∂y = ∂/∂y [ln(5x^3y)]

= (1/5x^3y) ∂/∂y [5x^3y]

= (1/5x^3y)  5x^3

= 1/x

Now, using the chain rule, we can find ∂z/∂s and ∂z/∂t.

∂z/∂s = (∂z/∂x)  (∂x/∂s) + (∂z/∂y)  (∂y/∂s)

= (3/y)  (cos(t)) + (1/x)  (0)

= 3cos(t)/y

∂z/∂t = (∂z/∂x)  (∂x/∂t) + (∂z/∂y)  (∂y/∂t)

= (3/y) * (scos(t)) + (1/x)  (-sin(s))

= 3scos(t)/y - sin(s)/x

Therefore, ∂z/∂s = 3cos(t)/y and ∂z/∂t = 3s*cos(t)/y - sin(s)/x.

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The time is needed between injections is 3.6 hours, i.e., the drug is to be injected again when the number of milligrams reaches 6 mg.

We have the exponential function of number of milligrams D (ht) of a certain drug that is in a patient's bloodstream h hours after the drug is injected is

\(D(h)=25 {e}^{ - 0.4 h}\)

We have to solve for h (the numbers of hours) that would have passed when the D(h) (the amount of medication in the patient's bloodstream) equals 6 mg in order to know when the patient needs to be injected again.

\(6 = 25 {e}^{ - 0.4h} \)

\( \frac{6}{25} = \frac{25}{25} {e}^{ - 0.4h} \)

\(0.24= {e}^{ - 0.4h} \)

Taking logarithm both sides of above equation , we get,

\( \ln(0.24) = \ln( {e}^{ - 0.4h)} \)

Using the properties of natural logarithm,

\( \ln(0.24) = - 0.4h\)

\( - 1.427116356 = - 0.4h\)

\(h = \frac{1.42711635}{0.4} = 3.56779089\)

=> h = 3. 6

So, after 3.6 hours, the patient needs to be injected again.

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Answer:

its C

Step-by-step explanation:

Answer:

C

hope it helps

thank you...