Which of the following point-slope form equations could be produced with the points (2, -6) and (4, -3)?
y - 6 = 3/2(x + 2)
y - 6 = 3/2(x - 2)
y + 6 = 3/2(x - 2)
y + 6 = -3/2(x + 2)

Answers

Answer 1

Answer:

y+6=[tex]\frac{\textbf{3}}{\textbf{2}}[/tex](x-2)

Step-by-step explanation:

       A line passes through the points [tex](2,-6)[/tex] and [tex](4,-3)[/tex].

To find the point-slope form of the line, we need a point on the line and the slope of the line.

As we have two points [tex](x_{1},y_{1})[/tex] and [tex](x_{2},y_{2})[/tex], the slope can be calculated as [tex]\dfrac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex].

       Slope of the line = [tex]\dfrac{-3-(-6)}{4-2}=\dfrac{3}{2}[/tex]

Given a line with slope [tex]m[/tex] and a point [tex](x_{1},y_{1})[/tex], slope-point form is [tex]y-y_{1}=m(x-x_{1})[/tex]

       Line is given by [tex]y+6=\frac{3}{2}(x-2)[/tex]

∴ The line is given by [tex]y+6=\frac{3}{2}(x-2)[/tex]

Answer 2

Final answer:

The correct point-slope form equation with the points (2, -6) and (4, -3) is y + 6 = 3/2(x - 2), after finding the slope of 3/2 and applying it to the point-slope formula using either of the points.

Explanation:

Firstly, let's find the slope of the line passing through the points (2, -6) and (4, -3). The slope formula is
(y₂ - y₁) / (x₂ - x₁), so plug in the values to get (-3 - (-6)) / (4 - 2) = 3 / 2.

Now we know the slope is 3/2, we can write a point-slope form equation, which is y - y₁ = m(x - x₁). We can use either of the given points; let's use (2, -6). Substituting these values into the point-slope formula gives us: y - (-6) = 3/2(x - 2).

Thus, the correct point-slope form equation produced with the points (2, -6) and (4, -3) is: y + 6 = 3/2(x - 2).


Related Questions

I need to write an equation for y = mx + b, The numbers i have are 20-80 and 1-4

Answers

Answer:

y = 20x

m = 20 and b = 0

Step-by-step explanation:

For input values of x = 1, output value of y = 20 and for x = 4, y = 80.

Therefore, the equation of this relation can be written as  

[tex]\frac{y - 80}{80 - 20} = \frac{x - 4}{4 - 1}[/tex]

⇒ 3(y - 80) = 60(x - 4)

⇒ 3y - 240 = 60x - 240

y = 20x

Now, y = mx + b is the equation and hence, m = 20 and b = 0 and the actual equation is y = 20x. (Answer)

10 students per teacher. Write two ratios to represent this information

Answers

10 to 1
20 to 2 or something like that

i need help with 7-10 plz help

Answers

Answer:

bro in Ur pictures there is no 7-10

Step-by-step explanation:

10-7 is 3 right so 7-10 is -3 it simple . but show me questions again because there is no 7-10 . Thank for ur asking me !

A movie theater has a seating capacity of 187. The theater charges $5.00
for children, $7.00 for students, and $12.00 of adults. There are half as
many adults as there are children. If the total ticket sales was $ 1356, How
many children, students, and adults attended?​

Answers

Final answer:

There were 69 children, 83.5 students, and 34.5 adults in attendance at the movie theater.

Explanation:

To solve this problem, we can set up a system of equations.

Let's denote the number of children as 'c', the number of students as 's', and the number of adults as 'a'.

From the given information, we have the following equations:

c + s + a = 187 (equation 1)

5c + 7s + 12a = 1356 (equation 2)

We also know that there are half as many adults as children, so we have the equation:

a = (1/2)c (equation 3)

Substituting equation 3 into equations 1 and 2, we can solve for the variables.

Substituting (1/2)c for a in equation 1:

c + s + (1/2)c = 187

(3/2)c + s = 187 (equation 4)

Substituting (1/2)c for a in equation 2:

5c + 7s + 12((1/2)c) = 1356

5c + 7s + 6c = 1356

11c + 7s = 1356 (equation 5)

Now we can solve equations 4 and 5 simultaneously:

Multiplying equation 4 by 11:

(33/2)c + 11s = 2057/2

11c + 7s = 1356

Subtracting the second equation from the first:

(33/2)c - 11c = 2057/2 - 1356

(-1/2)c = -69/2

c = 69

Substituting c = 69 into equation 4:

(3/2)(69) + s = 187

103.5 + s = 187

s = 83.5

Finally, substituting c = 69 and s = 83.5 into equation 3:

a = (1/2)(69)

a = 34.5

Therefore, there were 69 children, 83.5 students (which is not a whole number, so it could be rounded to 84 students), and 34.5 adults (which could be rounded to 35 adults) in attendance at the movie theater.

50 1/2 divided by 1/4 = 202
How are the numbers related?

Answers

To solve 50 1/2 divided by 1/4, convert the mixed number 50 1/2 to an improper fraction (101/2), then multiply by the reciprocal of 1/4 (which is 4), resulting in 202. The numbers are related through these multiplication and division steps.

Step by Step Solution:

To understand how the numbers are related in the equation 50 1/2 divided by 1/4, follow these steps:

First, convert the mixed number 50 1/2 to an improper fraction. This is done by multiplying the whole number part by the denominator of the fractional part and adding the numerator. Therefore, 50 1/2 becomes:

50 × 2 + 1 = 101/2

Next, when dividing by a fraction, you multiply by its reciprocal. So, dividing by 1/4 is the same as multiplying by 4/1.

Now multiply the improper fraction 101/2 by 4/1:

(101/2) × (4/1) = 101 × 4 / 2 × 1 = 404/2

Simplify the result by dividing the numerator by the denominator:

404 / 2 = 202

Therefore, the numbers are related through these multiplication and division operations, confirming that 50 1/2 divided by 1/4 equals 202.

Evaluate the expression when y = 4. 5 + y + 8


a.13
b.17
c.21
d.72

Answers

5 + y + 8 = 13+y
Therefore if why= 4 then 13+4=17 so the answer is b

Answer:

17 is the simplified answer.

Step-by-step answer:

Given that:

y = 4.

We have to evaluate:

=5 + y + 8

By putting value of y that is y =4 in above equation:

=5 +4 +8

=9 +8

=17

So 17 is simplified answer for this question.

I hope it will help you!

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Which expression represents the sequence below?
16, 24, 32, 40.....
an=4n+1 an=8n+8 an=8n+16

Answers

Answer:

[tex]a_n = 8n+8[/tex] represent the sequence 16,24,32,40...

Step-by-step explanation:

The sequence given is

16,24,32,40.

And the options given are

an=4n+1

an=8n+8

an=8n+16

We will check for all so as to find the correct expression.

In the given sequence the first term is 16,

i.e a1 = 16

1). We will check for an = 4n+1 whether the first term is 16 or not.

We will put the value of n as 1;

[tex]a_1= 4\times1+1= 4+1=5[/tex]

With this option we get the first term as 5 but in the given sequence first term is 16.

Hence this option is Incorrect.

2). We will check for an = 8n+8 whether the first term is 16 or not.

We will put the value of n as 1;

[tex]a_1= 8\times1+8= 8+8=16[/tex]

With this option we get the first term as 16 and in the given sequence also first term is 16.

Hence this option is correct.

3). We will check for an = 8n+16 whether the first term is 16 or not.

We will put the value of n as 1;

[tex]a_1= 8\times1+16= 8+16=24[/tex]

With this option we get the first term as 24 but in the given sequence first term is 16.

Hence this option is Incorrect.

Hence we can say that an = 8n+8 represent the sequence 16,24,32,40...

Mia ordered five DVDs, all at the same price, from an online retailer. There was a shipping charge of $14.50 for the complete order but no sales tax. If Mia’s total charge for her order was $79.45, what was the price of each DVD?

Answers

Answer:

$12.99

Step-by-step explanation:

you take $79.45 and subtract it by $14.59 that equals $64.95. Then you take 64.95 and divide it by 5 and your total of each DVD is 12.99

The price of each DVD from online retailer is, $12.99

What is mean by Subtraction?

Subtraction in mathematics means that is taking something away from a group or number of objects. When you subtract, what is left in the group becomes less.

We have to given that;

There was a shipping charge of $14.50 for the complete order but no sales tax.

And, Mia’s total charge for her order was $79.45.

Now, The cost of 5 DVD = $79.45 - $14.50

                                      = $64.95

Hence, The price of each DVD from online retailer is,

⇒ $64.95 / 5

⇒ $12.99

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Given 1+ cos x/ sin x + sin x/1+ cos x= 4, find a numerical value of one trigonometric function of x.

Answers

Answer:

The numerical value of the trigonometric function is 30 °

Step-by-step explanation:

Given trigonometric function as :

[tex]\frac{1 + cos x}{sin x}[/tex] + [tex]\frac{sin x}{1 + cos x}[/tex] = 4

or, Taking LCM we get

[tex]\frac{(1+cosx)^{2}+sin^{2}x}{(sinx)\times (1+cosx)}[/tex] = 4

Or,  ( 1 + cos x )² + sin² x = 4 × ( sin x ) × ( 1 + cos x )

1 + cos² x + 2 cox + sin² x = 4 sin x + 4 sin x × cos x

or, (  cos² x + sin² x ) + ( 1 + 2 cos x ) = 4 sin x ( 1 + cos x )

 ∵  cos² x + sin² x = 1

or,  1 + 1 + 2 cos x  = 4 sin x ( 1 + cos x )

or, 2 + 2 cos x = 4 sin x ( 1 + cos x )

or, 2 ( 1 + cos x ) = 4 sin x ( 1 + cos x )

Or, [tex]\frac{2 ( 1+ cos x )}{4 ( 1 + cos x )}[/tex] = sin x

Or, sin x = [tex]\frac{1}{2}[/tex]

∴  x = [tex]sin^{-1}\frac{1}{2}[/tex]

 ∵ sin 30 ° = [tex]\frac{1}{2}[/tex]

I.e  x = 30 °

Hence The numerical value of the trigonometric function is 30 °  answer

Answer: D. sin x= 1/2

Step-by-step explanation:

Edg 2020

It takes 12 hours for 7 men to paint a room.
How many men would be needed to paint the room in 3 hours?

Answers

28 men are needed to paint the room in 3 hours

Solution:

Given that it takes 12 hours for 7 men to paint a room

We are asked to find number of men required to paint the room in 3 hours

Recognize, "paint the room" is 1 task. One job.

7 men -------- 12 hours ------ 1 job

(7/7) = 1 men ------- 12 x 7 (84)  ------- same 1 job

The one men is rate is 84 hours to do the job

We can express this as 1/84 jobs per hour, the one-person rate

Now lets find how many men needed to paint the room in 3 hours

Let the required number of men for 3 hours be "a"

The rates of each person is simply additive.

[tex]a \times \frac{1}{84} \times 3 = 1[/tex]

corresponds to rate x hours = jobs and "a" is a variable for how many men

[tex]a \times \frac{1}{28} = 28[/tex]

Thus 28 men are needed to paint the room in 3 hours

Paula used these steps to solve an equation:
Step 1: -4(7 + 8) - 21 = 25
Step 2: -4r – 32 - 2x = 25
Step 3: -61 – 32 = 25
Step 4: -6x = 57
Step 5: x = -95
Between which two steps did Paula use the division property of equality?

Answers

Answer:

Between step 4 and step 5

Step-by-step explanation:

The Division Property of Equality states that when both sides of an equation are divided by the same nonzero number, both sides remain equal.

That is, if a, b, and c are real numbers such that a = b and c ≠0, then  

[tex]\frac{a}{c} = \frac{b}{c}[/tex]

At step 4: The equation was -6x = 57

To move to step 5, Paula had to divide both sides by the co-efficient of x (-6) in order to get the value of x. See below

[tex]-6x = 57[/tex] ---- Divide both sides by -6 (Step 4)

[tex]\frac{-6x}{-6} = \frac{57}{-6}[/tex] ---- (Intermediary between step 4 and 5)

[tex]x = -9.5[/tex] ----- Step 5

Hence, we can conclude that the division property of equality was done between step 4 and step 5

In order to teach high school, a teacher must have a college degree. Nathan is a high school teacher. Laura concludes that Nathan
must have a college degree.
This is an example of
A.
identifying a hypothesis.
B. inductive reasoning,
C.
identifying a conclusion
D. deductive reasoning.

Answers

Answer:

C

Step-by-step explanation:

That is her final answer.

D. Laura uses the information provided to deduce that Nathan has a college degree.

the formula d = 26t + 32.5 can be used to find the distance (d) between two cars after traveling (t) hours in opposite directions. How many hours will it take for the cars to be 117 miles apart?​
A: 0.5
B: 2.05
C: 3.25
D: 4.5

Answers

Answer:

C

Step-by-step explanation:

The formula given is:

[tex]d=26t+32.5[/tex]

Where

d is the distance between two cars

and

t is the time it takes

We want the time it takes (so we need t) for the cars to be 117 miles apart (this is the distance). Thus, it means:

d = 117

t = ???

We plug in 117 into d and solve the equation for t. Shown below:

[tex]d=26t+32.5\\117=26t+32.5\\117-32.5=26t\\84.5=26t\\t=\frac{84.5}{26}\\t=3.25[/tex]

So, it takes 3.25 hours

Correct answer is C

Final answer:

Using the formula d = 26t + 32.5 and setting d to 117 miles, we solve for t to find that it takes approximately 3.25 hours for the two cars to be 117 miles apart. The correct answer is C: 3.25.

Explanation:

To find out how many hours it will take for two cars to be 117 miles apart if they travel in opposite directions using the formula d = 26t + 32.5, we need to set d equal to 117 miles and solve for t.

First, we substitute 117 for d in the equation:

117 = 26t + 32.5

Next, we subtract 32.5 from both sides to isolate the term with t:

117 - 32.5 = 26t => 84.5 = 26t

Then we divide both sides by 26 to solve for t:

t = 84.5 / 26 => t ≈ 3.25

Hence, it will take approximately 3.25 hours for the cars to be 117 miles apart.

Thus, the correct answer is C: 3.25.

x/5 +8=3 what would x be

Answers

Answer: x= -25

Step-by-step explanation:

Answer:

x=-25

Step-by-step explanation:

x/5 = 8 = 3 you would multiply both sides by 5

youd end up with x+40=15 then you would move the constan to the right

x=15-40 you would subtract 40 from 15

x=-25

4. A home purchased for $120,000 in 2012 is sold for $156,000 in 2015. What is the percent
change in the price?

Answers

120,000 + 30% = 156,000

A park ranger calculated that 60% of the deer they tagged were male. Of the male deer that
were tagged, 20% of them were older than 4 years. They tagged 18 male deer that were
older than 4 years. How many deer did they tag?
A
45​

Answers

Answer:

They tagged 90 male deer s

Explanation:

Given a park ranger calculated 60% of male deer

Consider the deer they tagged to be x

According to question,

20% of deer were older than 4 years which equals 18

Then, 20% of x = 18

Solving for x,

x = 1800/20

x = 90

So, they tagged 90 male deer

Solve for q.
q/18 = 5

q = ___0a

Answers

q/18 = 5

q = 18×5

q = 90

The circle in the figure below has a radius of r and center at C. The distance from A to B is x, the distance from A to D is y, and the length of arc BD is s. Redraw the figure, label it as indicated, and then solve the problem.

If A = 45°, s = 18, and r = 14, find y. (Round your answer to the nearest whole number.)

Answers

Answer: y=19

Step-by-step explanation:

The figure of the triangle is attached and we have the following data:

[tex]A=45\°[/tex]

[tex]s=18[/tex] is the length of arc

[tex]r=14[/tex] is the radius

This problem can be solved by the Law of Sines:

[tex]\frac{sin A}{r}=\frac{sin C}{y}=\frac{sin D}{r+x}[/tex]

In order to find [tex]C[/tex], we will use the formula of the length of arc:

[tex]s=\frac{2 \pi r C}{360\°}[/tex]

Then: [tex]C=\frac{360\° s}{2 \pi r}[/tex]

[tex]C=\frac{360\° (18)}{2 \pi (14)}=73.66\°[/tex]

Returning to the Law of Sines:

[tex]\frac{sin A}{r}=\frac{sin C}{y}[/tex]

Finding [tex]y[/tex]:

[tex]y=\frac{sin C r}{sin A}[/tex]

[tex]y=\frac{sin (73.66\°) 14}{sin (45\°)}[/tex]

Finally:

[tex]y=18.99 \approx 19[/tex]

The length of side y is approximately 19 units.

The problem can be approached using the Law of Sines, which relates the angles and sides of a triangle. Given the data:

Angle A (A) is 45°, the side opposite angle A (s) is 18 units, and the radius of the circumcircle (r) is 14 units.

This problem can be solved by the Law of Sines:

sinA / r = sinC / y= sin D/ r + x

To find the length of side y, we can first calculate the measure of angle C (C) by using the formula for the length of an arc:

s= 2πrC/ 360

Then:

C= 360 s/ 2πr

C= 360 (18) / 2π(14)

C= 73.66

Now, we can use the Law of Sines to find the length of side y. The Law of Sines states:

sinA / r = sinC / c

In this case, we want to find side y, which is opposite angle C:

sinA / r = sinC / y

Solving for y :

y = sinCr/ sinA

y= sin ( 73.66 )14/ sin 45

Finally:

y = 18.99 = 19

So, the length of side y is approximately 19 units.

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please explain, but not to wordy​

Answers

Solving the expression [tex]\frac{x^2-12x+32}{x^2-10x+16}.\frac{6x-30}{25-5x}[/tex] we get [tex]-\frac{6(x-4)}{5(x-2)}[/tex]

Step-by-step explanation:

Solving the expression:

[tex]\frac{x^2-12x+32}{x^2-10x+16}.\frac{6x-30}{25-5x}[/tex]

Solving the expression:

We will find factors of the quadratic terms:

[tex]x^2-12x+32\\=x^2-8x-4x+32\\=x(x-8)-4(x-8)\\=(x-4)(x-8)[/tex]

So, factors of [tex]x^2-12x+32[/tex] are [tex](x-4)(x-8)[/tex]

[tex]x^2-10x+16\\=x^2-8x-2x+16\\=x(x-8)-2(x-8)\\=(x-2)(x-8)[/tex]

So, factors of [tex]x^2-10x+16[/tex] are [tex](x-2)(x-8)[/tex]

Placing factors instead of quadratic equation and finding common terms:

[tex]\frac{(x-4)(x-8)}{(x-2)(x-8)}.\frac{6(x-5)}{-5(x-5)}[/tex]

Cancelling the common terms:

[tex]\frac{(x-4)}{(x-2)}.\frac{6}{-5}\\-\frac{6(x-4)}{5(x-2)}[/tex]

So, Solving the expression [tex]\frac{x^2-12x+32}{x^2-10x+16}.\frac{6x-30}{25-5x}[/tex] we get [tex]-\frac{6(x-4)}{5(x-2)}[/tex]

Keywords: Solving Fractions

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If an account is increasing at a rate of 3.3% compounded semiannually, what is the exact value of in the following present value
ordinary annuity formula?
PV-P1-(1+1)*
a) 3.3
b) 0.033/100
c) 0.033/2
d) 0.33/2

Answers

Answer:

The correct answer is C. 0.033/2

Step-by-step explanation:

1. Let's review the data given to us for solving the question:

Annual interest rate = 3.3% compounded semiannually

2. Let's find the exact value of the rate:

Number of periods (n) = n/2, given that periods are semesters and not years

Annual interest rate (r) = 3.3% = 3.3/ 100 = 0.033

For using the correct value in the present value annuity formula, we also have to divide the annual interest rate because the interest is compounded semiannually or every six months, what it means:

0.033/2

The correct answer is C. 0.033/2

c. [tex]\frac{0.033}{2}[/tex]

on edgen

Basketball star Mumford (a six foot senior forward) places a mirror on the ground x ft. from the base of a basketball goal. He walks backward four feet until he can see the top of the goal, which he knows is 10 feet tall. Determine the how far the mirror is from the basketball goal. Justify your answer.

will give 5 stars and mark brainliest.

Answers

Answer:

6.67 feet

Step-by-step explanation:

The situation is as shown in the figure.

ON is the normal to the mirror at the point of incidence O

⇒ ∠BON = ∠DON = 90°

By the laws of reflection: angle of incidence = angle of reflection :

∠AON = ∠CON

⇒ ∠AOB = ∠COD

tan(∠AOB) = tan(∠COD)

⇒[tex]\frac{AB}{OB}[/tex] = [tex]\frac{CD}{OD}[/tex]

⇒[tex]\frac{6}{4}[/tex] = [tex]\frac{10}{x}[/tex]

⇒x = [tex]\frac{40}{6}[/tex] = [tex]\frac{20}{3}[/tex] = 6.67 ft

∴ Distance of the mirror from basketball goal is 6.67 ft

Final answer:

Using the principles of similar triangles, we determine that the mirror is 6 feet from the basketball goal by setting up a proportion between the heights and distances of the triangles formed by the goal and Mumford's line of sight. The mirror is 6 feet from the basketball goal.

Explanation:

To determine how far the mirror is from the basketball goal, we can use the principles of similar triangles. Basketball star Mumford is a six-foot-tall senior forward, meaning he is 6 feet above the ground. The basketball goal is 10 feet tall. If he walks backward four feet, and then he is able to see the top of the basketball goal, we can set up a proportion because the angles of incidence and reflection are equal.

Let's let x be the distance from the base of the basketball goal to the mirror. We then have two similar triangles to work with:

The large triangle with the height of the goal (10 feet) and the base x + 4 feet (distance from the goal to Mumford's eyes).

The smaller triangle with the height from Mumford's eyes to the ground (which is 6 feet because he's a six-foot-tall person) and the base x (distance from the goal to the mirror).

The proportion we set up is:

(Height of basketball goal) / (Distance from goal to Mumford's eyes) = (Height of Mumford's eyes from the ground) / (Distance from goal to the mirror)
10 / (x + 4) = 6 / x

Solving for x gives us the distance from the mirror to the basketball goal:

10x = 6(x + 4)

10x = 6x + 24

4x =24

x = 6

Therefore, the mirror is 6 feet from the basketball goal.

Jeremy’s pay is $8.25 per hour. Jeremy worked 78 hours in a month, and the pay statement showed a total of $128.70 in payroll taxes. What was Jeremy’s net income?

Answers

Jeremy’s net income was $514.8

Step-by-step explanation:

The given is:

Jeremy’s pay is $8.25 per hourJeremy worked 78 hours in a monthThe pay statement showed a total of $128.70 in payroll taxes

We need to find what Jeremy’s net income was

The net income = total income - taxes

∵ Jeremy’s pay is $8.25 per hour

∵ Jeremy worked 78 hours in a month

- Jeremy's income =  the pay for an hour × the worked hours

∴ Jeremy's income = 8.25 × 78

∴ Jeremy's income = $643.5 in a month

∵ There was $128.7 as taxes in his pay statement

∴ The taxes = $128.7

- Substitute the values of his income and the taxes in the

   formula of the net income

∵ The net income = total income - taxes

∴ The net income = 643.5 - 128.7

∴ The net income = $514.8

Jeremy’s net income was $514.8

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ax−by>c

Solve the following inequality for y, where a, b, and c are positive real ​numbers.

​Show all work and justify each step in the work with ​mathematical reasoning on the scratchpad.

Answers

Answer:

[tex]\large\boxed{y>\dfrac{c-ax}{b}}\\\text{for}\ a>0,\ b>0,\ c>0[/tex]

Step-by-step explanation:

[tex]ax+by>c\qquad\text{subtract}\ ax\ \text{from both sides}\\\\ax-ax+by>c-ax\\\\by>c-ax\qquad\text{divide both sides by}\ b\ (\text{we can, because}\ b>0)\\\\\dfrac{by}{b}>\dfrac{c-ax}{b}\\\\y>\dfrac{c-ax}{b}[/tex]

Final answer:

To solve the inequality ax - by > c for y, you first subtract ax from both sides which gives -by > -ax + c. Then you divide both sides by -b, remembering to flip the inequality sign, which gives y < (ax - c) / b.

Explanation:

To solve the inequality ax - by > c for y, you need to isolate y on one side of the inequality.

Subtract ax from both sides to move it away from the left side. The inequality becomes -by > -ax + c.Divide by -b. When you divide or multiply an inequality by a negative number, the direction of the inequality changes. So, the inequality becomes: y < (ax - c) / b.

This is the solution for the inequality in terms of y.

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801,504 round to the nearest thousand​

Answers

Answer:

802,000

Step-by-step explanation:

The number in the thousands place is 1, and the number to the right of it is 5. And if the number to the right is greater than or equal to 5 the place value that you are rounding goes up by one.

What is the equation of a circle with center (1, -4) and radius 2?

A. (x-1)^2 + (y+4)^2 = 4
B. (x-1)^2 - (y+4)^2 = 4
C. (x-1)^2 + (y+4)^2 = 2
D. (x+1)^2 + (y-4)^2 = 4

Answers

Answer:

A) (x-1)^2+(y+4)^2=4

Step-by-step explanation:

Here's the equation of a circle with center and radius:

(x-h)^2+(y-k)^2=r^2 with the center being at the point (h, k)

and the radius being r.

(x-1)^2+(y-(-4))^2=2^2

(x-1)^2+(y+4)^2=4

The equation of a circle with center (1, -4) and radius 2 is (x-1)²+(y+4)²=4

The correct option is (A).

What is equation of circle?

The equation of circle represents the locus of point whose distance from a fixed point is a constant value. This fixed point is called the center of the circle and the constant value is the radius of the circle.

The standard equation of circle with center at (x1,y1)  and radius r is (x−x1)²+(y−y1)²=r².

We know equation of circle,

(x-a)²+(y-b)²=r²

Here, a=1, b=-4 and r=2

So,

(x-1)²+(y-(-4))²= 2²

(x-1)²+(y+4)²=4

Hence, the equation of circle is: (x-1)²+(y+4)²=4

Learn more about equation of circle here:

https://brainly.com/question/10618691

#SPJ5

Through:(5,1), parallel to y =1/5x-4

Answers

If the line is parallel to y=1/5x-4, the line must have the same slope.

So, the slope of your line is 1/5.

Now we need to find the y intercept. We should use the point given.

y=mx+b

1=1/5(5)+b

b=0

Equation: y=1/5x

Answer:

y = (1/5)x

Step-by-step explanation:

y = mx+b

m= slope would be the same i.e. 1/5 , since it's parallel to the given equation.

y= 1

x= 5

Hence, let's look for the equation of this line of which the coordinate is provided!

1 = (1/5)(5) + b

1 = 1 +b

1-1 = b

b = 0

Hence the equation of this line is:

y = 1/5(x)

Hope this helps!

Mark brainliest of you think I helped! Would really appreciate!

please solve much appreciated

Answers

Answer:

i) C; x=y= 80°, ii) B; x= 58°, iii) D; x= 62° and y= 56°, iv) D; none of these are correct.

Step-by-step explanation:

i) Full angle around is 360°

 As given one angle is 100°,which means vertically opposite angles are equal to 100°

Now, remaining angle is equal to [tex]360-200= 160°[/tex]

∵ x and y are vertically opposite angle, which means they are equal.

x=y= 80°

ii) As we know straight angle is equal 180°

  As given one of the angle is 32° and other says, it is a right angle which   is equal to 90°.

∴ ∠x= [tex]180-(90+32)= 58°[/tex]

∠x= 58°

iii) Full angle = 360°

2∠x = 124° (∵ Vertically opposite angle are equal )

⇒∠x= [tex]\frac{124}{2}[/tex]

∠x= 62°

∠x+∠x+∠y= 180° (∵ it is a straight angle)

2∠x+∠y= 180°

⇒[tex]124+ y= 180[/tex]

Subtracting both side by 124

⇒∠y= [tex]180-124= 56°[/tex]

∴∠y= 56°

iv) Full angle= 360°

∴ ∠x+22°+32°+51°= 360°

Subtracting both side by 105

∠x= [tex]360-105= 255°[/tex]

∠x= 255°

Which means none of the given option are correct.

y-2=-(x+7) rewrite in standard form​

Answers

Answer:

x + y = -5

Step-by-step explanation:

standard form is ax + by = c

equation is y - 2 = -x - 7

Add x to both sides.

x + y - 2 = -7

Now add 2 to both sides.

x + y = -5

5a(-3b)(-2a^2b^3)
what is the answer to this question?

Answers

Answer:

(3•5•2a3b4)

Step-by-step explanation:

Step by step solution :

Step  1  :

Equation at the end of step  1  :

 -15ab • (0 -  (2a2 • b3))

Step  2  :

Multiplying exponential expressions :

2.1    a1 multiplied by a2 = a(1 + 2) = a3

Multiplying exponential expressions :

2.2    b1 multiplied by b3 = b(1 + 3) = b4

Please help!!!!!!!! The question is in the picture!

Answers

Answer:

D

Step-by-step explanation:

multiply out the top to get 6x - 4 + 2x - 2 = 8x - 6

next look at the 4 choices.

when we multiply out and combine only for the x term, only the bottom two give us 8x.

3/4 * 4x + 5 * x = 8x

3/4 * 4x + 1/6 * 30x = 8x

next we look at the bottom two for which one will give us -6, in this case only D will.

3/4 * -8 + 5 * 15 = 69

3/4 * -12 + 1/6 * 18 = -6

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