If angle A and angle B are complementary then the measure of angle A is 45, find a counterexample

Answers

Answer 1
I think your answer is 90
Answer 2

The measure of a angle B is 45°.

Given that,  angle A and angle B are complementary and ∠A=45°.

What are complementary angles?

In geometry, complementary angles are defined as two angles whose sum is 90 degrees.

Now, ∠A + ∠B = 90°

⇒ 45° + ∠B = 90°

⇒ ∠B = 45°

Counter example: If angle A is 90°, then the angle A and angle B are not complementary angles.

Therefore, the measure of a angle B is 45°.

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Related Questions

after 5 years what is the total amount of a compound interest investment of 32,000 at 3% interest, compounded quarterly
A.57.795.56
B.32,426.67
C.43,099.36
D.37,157.89

Answers

The answer is 37,157.89

if f(x)=2x-4 find f(q+1)

Answers

The value of f(q+1) is 2(q-1).

What is a function?

A relation or expression involving one or more variables.

Given that, f(x) = 2x - 4

When x = q+1

f(q+1) = 2(q+1) - 4

f(q+1) = 2q + 2 - 4

f(q+1) = 2q - 2

f(q+1) = 2(q-1)

Hence, the value of f(x) when x = (q+1) is 2(q-1)

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Determine whether 2y=3x-1 represents a direct variation. if it​ does, find the constant of variation.

Answers

Answer choices for this question? 

The equation 2y=3x-1 does not represent a direct variation in its strict definition, as it includes a y-intercept. If the y-intercept is ignored, the constant of variation would be k = 3/2.

The equation 2y=3x-1 represents a direct variation if it can be written in the form y = kx, where k is the constant of variation. To determine if this equation represents a direct variation, we can solve it for y:

Divide both sides of the equation by 2 to isolate y:
y = (3/2)x - 1/2.

Since we can express y as an equation of the form y = kx + b, with b being a constant, it does not represent a pure direct variation, as direct variation should have a form y = kx without the constant term.

However, if the question is interpreted to include such linear relationships as direct variations despite the y-intercept, then the constant of variation would be k = 3/2.

Joe walked of a mile in of an hour. what is his unit rate in miles per hour? (1 point) = mile per hour = miles per hour = miles per hour = mile per hour

Answers

"per" means division.
Miles per hour means divide the number of miles by the number of hours.
1 mile in 1 hour = (1 mile)/(1 hour) = 1 mile/hour = 1 mph

Write the equation of the function whose graph is shown.

Answers

Answer:

[tex]y=1(x-5)^2 + 3[/tex]

Step-by-step explanation:

Given : from the graph vertex is (5,3)

Also graph passes through point (8,12)

We use vertex form of quadratic equation

General vertex form is

[tex]y=a(x-h)^2 + k[/tex]

vertex is (5,3)

h= 5 and k =3

So equation becomes [tex]y=a(x-5)^2 + 3[/tex]

Now we need to find out 'a'

We use (8,12) to find out 'a'

Plug in x=8 and y = 12

[tex]12=a(8-5)^2 + 3[/tex]

[tex]12=a(3)^2 + 3[/tex]

12= 9a + 3

subtract 3 on both sides

9 = 9a

divide both sides by 9

so a=1

Final equation is

[tex]y=1(x-5)^2 + 3[/tex]

An equation of the function of this graph is equal to [tex]y=1(x-5)^2 + 3[/tex]

Given the following data:

Points on the x and y-axis = (8, 12).Vertex (h, k)= (5, 3).

How to write a function.

The vertex form of a quadratic equation can be used to write an equation of the function of a graph.

Mathematically, the vertex form of a quadratic equation is given by this formula:

[tex]y=a(x-h)^2 + k[/tex]

Substituting the given parameters into the formula, we have;

[tex]12=a(8-5)^2 + 3\\\\12=(3a)^2+3\\\\9a^2=12-3\\\\9a^2=9\\\\a^2=1[/tex]

a = 1.

For the equation:

[tex]y=a(x-h)^2 + k\\\\y=1(x-5)^2 + 3[/tex]

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Circle J and circle K are shown in the diagram below.

What is the total number of lines of tangency that are common to circle J and circle K?
3
2
4
1

Thank you!

Answers

Check the picture. There are 2 interior common tangents, and 2 exterior common tangents which can be drawn.

Answer: 4

1) which expression forms an equation with the given expression?
18-4•3=______
A. 8•4÷4
B. 14-11•2
C. 3(12-9)
D. 12÷3+3
2) choose the expression that completes the equation
24÷6+20=_____
A. 3(7+1)
B. 2(7+10)
C. 4(4+3)
D. 3(7+7)
HELP PLEASEEE

Answers

1) 18-4*3= 6
A. 8*4/4= 8
B. 14-11*2= -8
C. 3(12-9)= 9
D. 12/3+3= 7
The answer for (1) is none of the above, is there a problem with the question?

2)24/6+20= 24
A. 3(7+1)= 24
B. 2(7+10)= 34
C. 4(4+3)= 28
D. 3(7+7)= 42

The answer for (2) is A. 3(7+1)

The m6 = (11x + 8)° and m7 = (12x – 4)° What is the measure of 4? m4 = 40° m4 = 48° m4 = 132° m4 = 140°

Answers

You first want to take note that m6 & m7 are vertical angles. Vertical angles are equal to each other, therefore m6 is equal to m7.

m6 = m7

It tells us what m6 and m7 are in the problem, so we can replace m6 with "11x + 10" and m7 with "12x - 4." From there, we can solve for x and find out what the angles are in degrees.

m6 = m7

Replace m6 and m7.

11x + 8 = 12x - 4

Subtract 11x from both sides.

11x + 8 - 11x = 12x - 4 - 11x

8 = x - 4

Add 4 to both sides.

8 + 4 = x - 4 + 4

12 = x

Now that we have x, we can find m6 and m7.

m6 = 11x + 8

m6 = 11(12) + 8

m6 = 132 + 8

m6 = 140

And for m7.

m7 = 12x - 4

m7 = 12(12) - 4

m7 = 144 - 4

m7 = 140

From here, we can find m8 because m8 and m6 together are a straight line. Straight lines have an angle of 180 degrees.

m6 + m8 = 180

Replace m6 with 140.

140 + m8 = 180

Subtract 140 from both sides.

140 + m8 - 140 = 180 - 140

m8 = 40

Now that we have m8, we can find m4.

Because of the properties of parallel lines and transversals, we know that

m1 = m5

m2 = m6

m3 = m7

m4 = m8

Since we know m8 = 40 and m4 = m8, we can replace m8 with 40 to get m4 = 40.

The measure of angle 4 is 40°. That is, m4 = 40°. The correct option is the first option m4 = 40°

From the diagram, we can observe that angles 6 and 7 are vertically opposite angles.

From one of the angle theorems, we have that vertically opposite angles are equal

That means,

measure of ∠ 6 = measure of ∠ 7

From the question,

we have that, m6 = (11x + 8)° and m7 = (12x – 4)°

Since, the measures of angles 6 and 7 are equal, then we can write that

(11x + 8)° = (12x – 4)°

Now, determine the value of x, we will solve the equation

11x + 8 = 12x – 4  

First, subtract 11x from both sides

11x - 11x + 8 = 12x - 11x - 4

8 = x - 4

Now, add 4 to both sides

8 + 4 = x -4 +4

12 = x

∴ x = 12

Now, we will determine the measure of ∠6

m ∠6 = (11x + 8)°

Put x = 12

∴ m ∠6 = (11(12) + 8)°

m ∠6 = (132 + 8)°

m ∠6 = 140°

To determine the measure of ∠4, m4, we will first determine the measure of ∠8.

From the diagram,

m ∠6 + m ∠8 = 180° (Sum of angles on a straight line)

∴ 140° + m ∠8 = 180°

Then,

m ∠8 = 180° - 140°

m ∠8 = 40°

From the diagram, we can observe that angles 4 and 8 are corresponding angles.

Also, from one of the angle theorems, we have that corresponding angles are equal.

Hence, the measure of ∠ 4 equals the measure of ∠ 8.

From above, m ∠8 = 40°

∴ m ∠4 = 40°

Hence, the measure of angle 4 is 40°. That is, m4 = 40°. The correct option is the first option m4 = 40°

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Which irrational number can be multiplied by negative square root of 41 to get a product that equals 1?

Answers

that would be  -1 / √41

-√41  * -1 / √41    = √41 / √41  = 1

For this case we define the following variable:

x: unknown number

We then have the following equation:

[tex]- \sqrt {41} x = 1[/tex]

From here, we clear the value of x.

We have then:

[tex]x = - \frac {1} {\sqrt {41}}[/tex]

Answer:

An irrational number that can be multiplied by negative square root of 41 to get a product that equals 1 is:

[tex]x = - \frac {1} {\sqrt {41}}[/tex]


PLEASE HELP ASAP!!!!!





Carl, Brian, Dave, and Ashley want to attend the same university. Unfortunately only two spots remain and these four friends have the same GPA, as well as virtually identical community service and leadership experiences. Therefore, the two spots will be determined by their SAT and ACT scores. Carl scored 1,280 on the SAT, while Brian scored 1,325. Dave scored 28 on the ACT, while Ashley scored 30. Use z-scores to determine which two students should be admitted. The mean SAT score was 1,000 with a standard deviation of 175 and the mean ACT score was 20.6 with a standard deviation of 5.2 Both tests are normally distributed.

Answers

Calculate the four z-scores pertaining to this data, and then compare them.  The two students with the highest z-scores are offered admission.
                           28-20.6
For Dave:  z = ----------------  =  1.42
                            5.2

Find the z scores for the other 3 students.  Rank your results in ascending order.  Take the 2 students whose z scores are greater than the remaining z scores.
Use z = (x - μ)/σ for all 4 people.

Carl:

z = (x - μ)/σ

z = (1280 - 1000)/175

z = 1.6

Brian:

z = (x - μ)/σ

z = (1325 - 1000)/175

z = 1.9

Dave:

z = (28 - 20.6)/5.2

z = 1.42

Ashley:

z = (x - μ)/σ

z = (30 - 20.6)/5.2

z = 1.81

Using the z-scores for each student above, the following two students should be admitted into the university:

Brian based on his SAT score and Ashley based on her ACT score.

What is a quick way to determine which savings account will pay the most interest?


Answers

I would say the quickest way is to go to some banks and asks them how much interests they give you... then the bank that gives you the most interest, the bank that you are looking for.
The interest rate or percent of interest, and the higher the rate and the more it gives is what you are looking for

Which property can be used to remove the parentheses in the expression 1.7(x+9)

Answers

The distributive Property
The distributive property.

Kate earns $8.50 per hour. How much money will she earn after working 8 hours? She will earn $.

Answers

just do 8.5 times 8, then you will your answer
8 hours * $8.50 would equal her earning $68 :) (sorry for the super late reply i got distracted by memes)

Use two or three unit fractions to convert. 1515 daysdaysequals=​_______ secondsseconds

Answers

Fifteen days is equivalent to 1,296,000 seconds, or one million two hundred ninety-six thousand seconds.

It is found that Fifteen days is equivalent to 1,296,000 seconds, Or we can say one million two hundred ninety-six thousand seconds.

What is the fundamental principle of multiplication?

Multiplication is the mathematical operation that is used to determine the product of two or more numbers. If an event can occur in m different ways and a second event can occur in n different ways, then the two events in succession can occur in m × n different ways.

We need to find the unit fractions to convert 15 days into seconds.

1 day = 24 hour

1 hour = 60 minutes.

1 minutes = 60 seconds

Therefore, 24 hours = 24 x 60 x 60  = 86400 seconds

There are 86400 seconds in one day.

Then 15 days = 15 x 86400 = 1,296,000

Hence, It is found that Fifteen days is equivalent to 1,296,000 seconds, Or we can say one million two hundred ninety-six thousand seconds.

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What is the slope ? Simplify your answer and write it as a proper fraction improper fraction or integer

Answers

your answer would be 3/1 or 3
3/4 is the answer to the question

Describe which of the two points lies on the graph of the line
Y-x=4
A. 9,5
B. 5,9

Answers

B. 5, 9

x = 5
y = 9

y - x = 4

(9) - (5) = 4

True

hope this helps

Which will result in a difference of squares? (–7x + 4)(–7x + 4) (–7x + 4)(4 – 7x) (–7x + 4)(–7x – 4) (–7x + 4)(7x – 4)

Answers

a difference of squares
a^2 – b^2 = (a + b)(a – b)
in this case

(–7x + 4)(–7x – 4)

answer
(–7x + 4)(–7x – 4)

Answer:

(–7x + 4)(–7x – 4) Sign changes in the middle of both parenthesis , so this will result in difference of squares

Step-by-step explanation:

The formula for difference of squares

[tex]a^2 - b^2 =(a+b)(a-b)[/tex]

(–7x + 4)(–7x + 4) both parenthesis having same terms so this will not result in difference of squares

(–7x + 4)(4 – 7x) both parenthesis having same terms so this will not result in difference of squares

(–7x + 4)(–7x – 4) Sign changes in the middle of both parenthesis , so this will result in difference of squares

(–7x + 4)(7x – 4) sign changes for both terms in both parenthesis so this will not result in difference of squares


Functions f(x) and g(x) are shown below:

f(x) = -4(x - 6)^2 + 3

g(x) = 2 • cos(2 • x - pi) + 4


Using COMPLETE SENTENCES, explain how to find the maximum value for each function and determine which function has the largest maximum y-value.

Answers

Consider f(x) = -4(x - 6)² + 3
This is a parabola with vertex at (6, 3).
Because the leading coefficient of -4 is negative, the curve opens downward, and the vertex is the maximum value.

Answer: Maximum of  f(X) = 3

Consider the function g(x) = 2 cos(2x - π) + 4
The maximum value of the cosine function is 1.
Therefore the maximum value of g(x) is
2*1 + 4 = 6

Answer: Maximum of g(x) = 6

Which equation is the inverse of y = x2 – 36?

Answers

its B.y=±√​n+36​​​       

i hope that helps 

Answer:

The given equation of the curve is

 y= x² - 36

To find it's inverse we have to convert y in terms of x.

So, adding 36 to both sides of equation

→ y + 36=x² -36 + 36

→ y + 36 = x²

→ x² = y+ 36

→ x =[tex]\pm[/tex][tex]\sqrt{y+36}[/tex]

Now, to find inverse you can replace x by y, so by replacing x by y, the above equation becomes

y =[tex]\pm\sqrt{x+36}[/tex]

Second option is correct.





relative maxima and relative minima are called relative_____.

Hint: first 2 letters are ex

Answers

Relative maxima and relative minima extrema

Relative maxima and relative minima are called relative extrema.

Given:

The given statement is:

Relative maxima and relative minima are called relative_____.

To find:

The correct word to fill the given blank.

Explanation:

Relative maxima: If the function changes from increasing to decreasing, then the turning point is known as relative maxima.

Relative minima: If the function changes from decreasing to increasing, then the turning point is known as relative minima.

Relative extrema: The turning points relative maxima and relative minima are known as relative extrema.

Therefore, the relative maxima and relative minima are called relative extrema.

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Which of the following statements describes the process for solving 4x ≥ -24?

Divide both sides of the inequality by -24 and flip the symbol.
Divide both sides of the inequality by -24 but don't flip the symbol.
Divide both sides of the inequality by 4 and flip the symbol.
Divide both sides of the inequality by 4 but don't flip the symbol.

Answers

Divide both sides of the inequality by 4 but don’t flip the symbol.

You only flip the inequality symbol if you divide by a negative number.

If you’re solving for x (which you are), you want to get x by itself. The only way to do that is to divide by 4.

Answer:

Your answer would be D.

Step-by-step explanation:

Pleaseeee help!!!!!!!!!

Answers

The slope is change in y/change in x, so we have (y1-y2)/(x1-x2). This is the same no matter what's y1 or y2 as long as y1 is in the same point as x1. Plugging them in, we get (7-(-3))/(1-(-4))=10/5=2 as the slope. Therefore, we can make the function y=mx+b and since m is the slope, we have y=2x+b. Plugging -4 in for x and -3 in for y, we get -3=2*(-4)+b=-8+b. Adding 8 to both sides, we get b=5, meaning that we have y=2x+5. However, we have to put it in the form ax+by=c. To do that, we can subtract 5 from both sides to get -5+y=2x. Next, we can subtract y from both sides to get -5=2x-y

Add -12+20, Then divide the sum by -4

Answers

-12 + 20 would equal 8, and -8 divided by -4 would equal 2.

Add -12 and 20 to get 8
divide 8 by -4 and get -2

"you buy a baseball bat and a ball for $1.10. the baseball bat costs $1.00 more than the ball. how much did the ball cost?"

Answers

10 cents because the total was a dollar 10 and the bat cost cost a dollar so you would subtract that and you would be left with 10 cents thus being the ball

2x to the fourth power + 5x squared + 3, factored

Answers

We want to factor:
[tex]2x^4+5x^2+3[/tex]

This may seem tricky because of the high powers, but remember that [tex]x^4=(x^2)^2[/tex]. Then we can factor it as:
[tex]2x^4+5x^2+3=(2x^2+3)(x^2+1)[/tex]
(x squared+1)(2x squared+3)

If (1, 2) and (3, 4) lie on the same line, give the slope-intercept equation of the line.

Answers

The slope of the line is  (4-2) / (3-1) = 2/2 = 1 
y - y1 = x - x1 
here x1 = 1 and y1 = 2 :-
y - 2 = x - 1
y = x + 1 <---- Answer

Final answer:

The slope-intercept equation of the line that passes through (1, 2) and (3, 4) is y = x + 1, with a slope of 1 and a y-intercept of 1.

Explanation:

To find the slope-intercept equation of a line that passes through the points (1, 2) and (3, 4), we first need to determine the slope of the line. We use the formula for the slope (m) given by the change in y over the change in x, or Δy/Δx. Calculating the slope, we get:

m = (4 - 2) / (3 - 1) = 2 / 2 = 1.

Now we have the slope, we can use the slope-intercept form of the line, which is y = mx + b, where m is the slope and b is the y-intercept. Plugging in one of the points, say (1, 2), into this equation gives us:

2 = (1)(1) + b

Which simplifies to:

b = 2 - 1 = 1

So the y-intercept (b) is 1. Therefore, the slope-intercept equation of the line is:

y = x + 1

How would you graph the solution set of ≤ -18?

closed circle on -3 and shaded to the right
closed circle on -3 and shaded to the left
closed circle on -108 and shaded to the right
closed circle on -108 and shaded to the left

Answers

Option 4, closed circle on -18 and shaded to the left.

Faith xoxo

Answer:

Closed circle on -108 and shaded to the left, I took the same lesson and got 100%

Step-by-step explanation:

But your missing part of the question, it's how would you graph the solution set of x/-6 ≤ -18?

A family is comparing different car seats. One car seat is designed for a child up to and including 30 lb. Another car seat is designed for a child between 15 lb and 40 lb. A third car seat is designed for a child between 30 lb and 85 lb, inclusive. Model these ranges on a number line. Represent each range of weight using interval notation. Which car seats are appropriate for a 32-lb child?

Answers

The number lines should show the weights the car seats are designed for in comparison the the weight of the 32lb child. The car seat made for children 30lb and lighter would not work because this child is 32lbs. Model this by placing a filled in circle at 30 and the arrow should face left. The seat for children between 15lbs and 40lbs and the seat designed for a child that is between 30lbs and 85lbs would work because the child is within these weight ranges. The number line for the seat for a 15lb-40lb child would have open circles at 15 and 40 with a line connecting the two points. The number line for a 30lb-85lb child should have filled in circles at these two point with a line connecting them.

The interval notation is:

0 < x ≤ 30; 15 < x < 40; 30 ≤ x ≤ 85;

The  second and third car seats are suitable.

The number lines shows the weights of the car seats which is designed for in comparison the weight of the 32lb child.

Three car seats are designed as follows:

The car seat made for children upto 30lb. The seat for children between 15lbs and 40lbs andThe seat designed for a child between 30 lb and 85 lb

As the seat designed for a child upto and including 30 lb would not be suitable for 32 lb child. Because 32lb is more than the 30 lb.

Now, the seat designed for a child between 30 lb and 85 lb, 30lbs and 85lbs would be suitable as the child is within these weight ranges that is 32lb.

The interval notation is:

0 < x ≤ 30; 15 < x < 40; 30 ≤ x ≤ 85;

The  second and third car seats are suitable.

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Find the quotient and remainder using long division. x6 + 4x4 + 4x2 + 16 x2 + 4

Answers

14x+28
Not 100% sure if this is right. I done this and it’s how I passed. I added all my X’s together and then added the rest of Them. It worked for me but it might not for you.

Which step should be used to prove that point a is equidistant from points c and b? (1 point)?

Answers

 point a is equidistant from points c and b
 mean ac = ab 
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