Answer:
The required points of the given line segment are ( - 1, - 5 ).
Step-by-step explanation:
Given that the line segment AB whose midpoint M is ( 3, -2 ) and point A is ( 7, - 9), then we have to find point B of the line segment AB -
As we know that-
If a line segment AB is with endpoints ( [tex]x_{1}, y_{1}[/tex] ) and ( [tex]x_{2}, y_{2}[/tex] ) then the mid points M are-
M = ( [tex]\frac{ x_{1} + x_{2} }{2}[/tex] , [tex]\frac{ y_{1} + y_{2} }{2}[/tex] )
Here,
Let A ( 7, - 9 ), B ( x, y ) with midpoint M ( 3, - 2 ) -
then by the midpoint formula M are-
( 3, - 2 ) = ( [tex]\frac{7 + x}{2}[/tex] , [tex]\frac{ - 9 + y}{2}[/tex] )
On comparing x coordinate and y coordinate -
We get,
( [tex]\frac{ 7 + x}{2}[/tex] = 3 , [tex]\frac{- 9 + y}{2}[/tex] = - 2)
( 7 + x = 6, - 9 + y = - 4 )
( x = 6 - 7, y = - 4 + 9 )
( x = - 1, y = -5 )
Hence the required points A are ( - 1, - 5 ).
We can also verify by putting these points into Midpoint formula.
Find the x and y intercepts of the equation: 2x - 3y = 18 (0, 2) and (-3, 0) (0, 9) and (0, -6) (9, 0) and (0, -6) (2, 0) and (0, -3)
The x - intercept is (9, 0) and y - intercept is (0, -6)
Solution:
Given that the equation is: 2x - 3y = 18
We have to find the x and y intercepts of the equation
The x-intercept is the point at which the line crosses the x-axis. At this point, the y-coordinate is zero.
The y-intercept is the point at which the line crosses the y-axis. At this point, the x-coordinate is zero.
Finding x - intercept:
Substitute y = 0 in given equation
2x - 3y = 18
2x - 3(0) = 18
2x = 18
x = 9
Thus the x - intercept is (9, 0)
Finding y - intercept:
Substitute x = 0 in given equation
2(0) - 3y = 18
-3y = 18
y = -6
Thus the y-intercept is (0, -6)
What is the largest source of water on earth?
Answer:
Seawater
Step-by-step explanation:
I just took a quiz on this and it said the correct answer is sea water
Explain how to estimate the quotient using compatible numbers. 27 2/3 divided by 3 9/10. Write a Sentence or two.
Answer:
Step-by-step explanation:The first fraction is between 27 and 28, closer to 28. The second fraction is between 3 and 4, closer to 4. Compatible numbers in division are numbers that can be divided mentally. 28 divided by 4 is 7. The quotient will be around 7.
Answer:
Step-by-step explanation:
Sample Response: The first fraction is between 27 and 28, closer to 28. The second fraction is between 3 and 4, closer to 4. Compatible numbers in division are numbers that can be divided mentally. 28 divided by 4 is 7. The quotient will be around 7.
plzzz help rn i need it
Answer:
Therefore the slope of the line shown on the graph is option D)
[tex]-\dfrac{2}{3}[/tex]
Step-by-step explanation:
Given:
Let the Two points on the line be
point A( x₁ , y₁) ≡ ( 0 , 0) one as a Origin
point B( x₂ , y₂) ≡ (-3, 2)
To Find:
Slope AB = ?
Solution:
For a slope we require two points i.e
[tex]Slope=\dfrac{y_{2}-y_{1} }{x_{2}-x_{1}}[/tex]
Substituting the given values we get
[tex]Slope(AB)=\frac{2-0}{-3-0}\\\\Slope(AB)=-\dfrac{2}{3}[/tex]
Therefore the slope of the line shown on the graph is option D)
[tex]-\dfrac{2}{3}[/tex]
A backpacker parked his car and hiked a distance of 1.2 km on the first day. On the second day, he continued hiking away from his car with an average speed of 2.3 km/hr. Write the equation that can be used to find the backpacker's distance in km (d) from his car as a function of time in hours (t) as he hiked on the second day.
d(t) =
Answer:
d = 1.2 + 2.3t
Step-by-step explanation:
A backpacker parked his car and hiked a distance of 1.2 km on the first day. On the second day, he continued hiking away from his car with an average speed of 2.3 km/hr.
Now, on the second day he started from distance 1.2 km from his car and continues to hike with an average speed of 2.3 km/hr.
Therefore, the distance of the backpacker from his car on the second day is given by
d = 1.2 + 2.3t
where d is the distance in km and t is the time in hours he hiked. (Answer)
PLEASE PLEASE HELP ME SOMEONE I AM BEING TIMED
virgina has 1/2 of a cake leftover. she wants to serve each of her guests 1/10 of a whole cake. how many guests can she serve.
Answer:
5 guests
Step-by-step explanation:
10 slices per cake
half of that is 5 slices
1 slice = 1 guest
What is the following product? (Square root 14 - square root 3) (square root 12 + square root 7)
Answer:
Step-by-step explanation:
The product of this expression is option (A) (2√42 + 7√2 - 6 - √21) is the correct answer.
What is simplification of an expression?Simplification of an expression is the process of writing an expression in the most efficient and compact form without affecting the value of the original expression. It involves, multiply out the brackets and then simplify the resulting expression by collecting the like terms.
For the given situation,
The expression is [tex](\sqrt{14} -\sqrt{3})( \sqrt{12} +\sqrt{7} )[/tex]
⇒ [tex]\sqrt{14}\sqrt{12} +\sqrt{14} \sqrt{7} -\sqrt{3} \sqrt{12} -\sqrt{3} \sqrt{7}[/tex]
⇒ [tex]\sqrt{168}+\sqrt{98}-\sqrt{36}-\sqrt{21}[/tex]
⇒ [tex]\sqrt{2^{2}(42) } +\sqrt{7^{2}(2) } -\sqrt{6^{2} }-\sqrt{21}[/tex]
⇒ [tex]2\sqrt{42 } +7\sqrt{2 } -6-\sqrt{21}[/tex]
Hence we conclude that the product of this expression is option (A) (2√42 + 7√2 - 6 - √21) is the correct answer.
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Given the two similar triangles, find y.
A= y = 4
B= y = 5
C= y = 6
D= y = 8
giving brainlist to whoever answers with work.
Answer:
The correct answer is B. y = 5
Step-by-step explanation:
Let's recall that two are triangles are similar when its side lengths are proportional. That is in our case, if Δ ABC is similar to Δ DEF , then the following equation holds:
EF/BC = DF/AC
Replacing with the real values:
6/12 = y/10
Cross multiplication:
12 * y = 10 * 6
12y = 60
y = 60/12
y = 5
The correct answer is B. y = 5
In triangle abc, cos A= -0.6. Find A and Tan A
Answer:
Part 1) [tex]A=126.87^o[/tex]
Part 2) [tex]tan(A)=-\frac{4}{3}[/tex]
Step-by-step explanation:
we have
[tex]cos(A)=-0.6[/tex]
The cos(A) is negative, that means that the angle A in the triangle ABC is an obtuse angle and the value of the sin(A) is positive
The angle A lie on the II Quadrant
step 1
Find the measure of angle A
[tex]cos(A)=-0.6[/tex]
using a calculator
[tex]A=cos^{-1}(-0.6)=126.87^o[/tex]
step 2
Find the sin(A)
we know that
[tex]sin^2(A)+cos^2(A)=1[/tex]
substitute the value of cos(A)
[tex]sin^2(A)+(-0.6)^2=1[/tex]
[tex]sin^2(A)=1-0.36[/tex]
[tex]sin^2(A)=0.64[/tex]
[tex]sin(A)=0.8[/tex]
step 3
Find tan(A)
we know that
[tex]tan(A)=\frac{sin(A)}{cos(A)}[/tex]
substitute the values
[tex]tan(A)=\frac{0.8}{-0.6}[/tex]
Simplify
[tex]tan(A)=-\frac{4}{3}[/tex]
. A friend opens a savings account by depositing $1000. He deposits an
additional $75 into the account each month.
a. What is a rule that represents the amount of money in the account as an
arithmetic sequence?
b. How much money is in the account after 18 months? Show your work.
Answer:
the rule is:
75x + 1000
Step-by-step explanation:
after 18 months
plug 18 in for x.
75(18) + 1000
= 1350
1350 + 1000
= 2350
$2350 after 18 months
Answer:
Part (A) 1000+(n-1)75
Part (B) 2,275
subtract the 1 it's not 2350
Step-by-step explanation:
-15x + 4 < 109 or -6x + 70 > - 2
For this case we must find the solution set of the given inequalities:
[tex]-15x + 4 <109[/tex]
We subtract 4 from both sides of the inequality:
[tex]-15x <109-4\\-15x <105[/tex]
We divide between 15 on both sides of the inequality:
[tex]-x <\frac {105} {15}\\-x <7[/tex]
We multiply by -1 on both sides taking into account that the sense of inequality changes:
[tex]x> -7[/tex]
The solution is given by all values of x greater than -7.
[tex]-6x + 70> -2[/tex]
Subtracting 70 from both sides of the inequality:
[tex]-6x> -2-70\\-6x> -72[/tex]
We divide by 6 on both sides of the inequality:
[tex]-x> - \frac {72} {6}\\-x> -12[/tex]
We multiply by -1 on both sides taking into account that the sense of inequality changes:
[tex]x <12[/tex]
Thus, the solution set is given by:
[tex]x> -7\ U\ x <12[/tex]
Therefore the solution is all real numbers.
Answer:
All real numbers.
Mike bought 20 stamps for 0.40 $5 each and 15 Century 0.32 each how much money did Mike spend on stamp
Answer:
$8
Step-by-step explanation:
Here is the correct question: Mike bought 20 stamps for 0.40 each and 15 Century 0.32 each how much money did Mike spend on stamp.
Given: cost of each stamp is 0.40
Total stamp bought is 20.
Using unitary method
Cost of 1 stamp is 0.40.
∴ cost of 20 stamp is =[tex]20\ stamp \times 0.40= 8[/tex]
Cost of 20 stamp is $8
∴ Total money spent by Mike on buying 20 stamp is $8.
PLZ ANSWER
SCRENSHOT
Answer:
Marcelino will break even
Step-by-step explanation:
if he spends 45 dollars on profits, and sells each balloon for $1.50 then you multiply 30 balloons by 1.5 and that equals 45 dollars, so he will break even
Answer:
C
Step-by-step explanation:
Systems of equations with different slopes and different y-intercepts have more than one solution. (5 points) Always Sometimes Never
Answer:
Never
Step-by-step explanation:
we know that
A system of linear equations with the same slope and the same y-intercept has infinite solutions (identical lines)
A system of linear equations with the same slope and different y-intercept has no solutions (parallel lines)
A system of linear equations with different slopes and different y-intercept has only one solution
Write the equation of a line that is parallel to
y
=
9
y=9y, equals, 9 and that passes through the point
(
3
,
−
8
)
(3,−8)left parenthesis, 3, comma, minus, 8, right parenthesis.
Answer:
The equation of the line is [tex]y=-8[/tex]
Step-by-step explanation:
we know that
The equation of the line [tex]y=9[/tex] is a horizontal line (parallel to the x-axis)
The equation of a horizontal line is equal to the y-coordinate of the point that passes through it
In this problem, the line passes through the point (3,-8)
The y-coordinate is -8
therefore
The equation of the line is [tex]y=-8[/tex]
is y=17 a linear function
Answer:
No.
Explanation:
The term linear function refers to two distinct but related notions. This is just one point.
what is greater 19/34, 19/36
Answer:19/34
Step-by-step explanation:
What is the solution to the following system of equations? x − 4y = 6 2x + 2y = 12 (0, 10) (10, 0) (6, 0) (0, 6)
Answer:
(6,0)
Step-by-step explanation:
The given system has equations:
[tex]x-4y=6[/tex]
[tex]2x+2y=12[/tex]
Multiply the top equation by 2 to get:
[tex]2x-8y=12[/tex]
[tex]2x+2y=12[/tex]
Subtract the top equation form the bottom equation to get:
[tex]2x-2x+2y--8y=12-12[/tex]
[tex]\implies 10y=0[/tex]
[tex]\implies y=0[/tex]
Put y=0 into [tex]x-4y=6[/tex]
[tex]x-4*0=6[/tex]
[tex]\implies x=6[/tex]
Therefore the solution is (6,0)
Your Answer Is:
C: (6,0)
Mason has an offer to buy an item with a sticker price of $14,800 by paying
8530 a month for 36 months. What interest rate is Mason being offered?
A 12.8%
B. 25.7%
C6.4%
d8,5%
Answer:
8.83%
Step-by-step explanation:
Using compound interest formula
A = P ( 1+ r) ^t where A = amount = 530 × 36 = $ 19080, P = the amount of the loan = $ 14800, t = 36 / 12 = 3 years
substitute the values into the equation
19080 = 14800 (1 + r) ^3
19080 / 14800 = (1 + r) ^3
1.2892 = (1 + r) ^3
∛(1.2892) = 1 + r
1.0884 = 1 + r
r = 1.0884 - 1 = 0.0884 × 100 = 8.83%
Answer:
d 8,5%, the most probable, provided the error in the question is confirmed!!!
Step-by-step explanation:
Mason has an offer to buy an item with a sticker price of P= $14,800.
He is to pay $8530 a month for 36 months.
Total amount paid by Mason will be
$8530*36= $307,080
This will be very outrageous compared to the sticker price!!!
If we presume he is paying yearly 8530 for 36 months or 3 years.
Then total amount paid will be 8530*3 = $25590
Also very high in my opinion.
Perhaps the dollar sign was wrongly typed as '8' in the question and he pays only $530 monthly,
Then the total amount paid will be $19,080
This is quite reasonable.
If the interest rate is compounded for n (n=3, 36 months = 3 years)
years, thus
19080= ((P*(1+i)^n) , meaning
19080 =((14800(1+i)^3), which when evaluated yields
i=8.8%
Please help! I really need it!
Answer:
1. x > 4
2. m < 2
3. x > 2
4. x < -6
Step-by-step explanation:
These 4 inequalities will be solved the same way we solve equations. We take variables to one side and numbers to another and use algebra to solve. Each of them are solved shown below:
1.
[tex]4+6x<x+6x\\4+6x<7x\\4<7x-6x\\4<x[/tex]
so x is greater than 4, we can write (variable first):
x > 4
2.
[tex]m+16>8m+2\\16-2>8m-m\\14>7m\\\frac{14}{7}>m\\2>m[/tex]
so m is less than 2, we can write:
m < 2
3.
[tex]5x-1>13-2x\\5x+2x>13+1\\7x>14\\x>\frac{14}{7}\\x>2[/tex]
so x is greater than 2, we can write:
x > 2
4.
[tex]-3x-2>-x+10\\-2-10>-x+3x\\-12>2x\\\frac{-12}{2}>x\\-6>x[/tex]
so x is less than -6, we can write:
x < -6
Draw to show the numbers write the number to solve. Charlie gathering apples pears and plums the number of apples and plums are 10 partners there are the same number of apples and pears how many pieces of fruit could Charlie gather?
Answer:
Charlie could gather 30 pieces of fruit.
Fetching Information:
As Charlie has gathered apples pears and plums, and the number of apples and plums are 10 partners, and also there are same number of apples and pears.
What to Determine?
How many pieces of fruit could Charlie determine?
Solution:
Let 'a' be the number of apples, 'b' be the number of plums, and 'c' be the number of pears.
As the number of plums and apples is same i.e both are 10 in numbers.
So, a = b = 10
Note that number of pears and apples is also same. So, the the total number of pears will be 10.
So, c = 10
Total number of pieces of fruit = number of apples + number of plums + number of pears
Hence,
Total number of pieces of fruit = a + b + c
= 10 + 10 + 10
= 30
Thus, Charlie could gather 30 pieces of fruit.
Keywords: number, total
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Determine if each relation is a function. Explain your reasoning.
Answer:
The first picture is a function while the second one is not.
Step-by-step explanation:
Reason - first picture passed the vertical line test, the other didn't.
PLZ HELP!!! Katrina is solving the equation x-2(x+3)=4(2x+3)-x(x-4) . Which equivalent equations might Katrina use? Check all that apply.
Answer:
X2-13X-18=0
Step-by-step explanation:
x-2(x+3)=4(2x+3)-x(x-4)
Multiply through the equations
x-2x-6=8x+12-x2+4x
Equate all to zero
x-2x-6-8x-12+x2-4x=0
x2-4x+x-2x-8x-6-12
x2-13x-18=0
Answer:
A. x minus 2 x minus 6 = 8 x + 12 minus x minus 4
E. Negative x minus 6 = 7 x + 8
Step-by-step explanation:
i took the unit test review on edg
3. Caleb has $25 to spend on prizes for a game at the school fair. Lip balm costs $1.25 each, and mini-notebooks cost $2.50 each.
a. Write a linear equation in STANDARD FORM that can be used to determine how many of each prize she can buy.
b. Graph the equation using x- and y- intercepts.
Answer:
linear equation in Standard form that can be used to determine how many of each prize Caleb can buy is [tex]1.25x+ 2.50y = 25[/tex]
Step-by-step explanation:
Given:
Total cost spent on prizes for games = $25
Cost of one lip balm = $1.25
Cost of one mini notebook = $2.50
A) linear equation in STANDARD FORM that can be used to determine how many of each prize she can buy.
Let the number of lip balms be x and the number of mini note books be y. Then
[tex]1.25x+ 2.50y = 25[/tex]
B. Graph the equation using x- and y- intercepts.
Now by trial and error method
[tex]1.25(0)+ 2.50(10) = 25[/tex]
[tex]1.25(2)+ 2.50(9) = 25[/tex]
[tex]1.25(4)+ 2.50(8) = 25[/tex]
[tex]1.25(6)+ 2.50(7) = 25[/tex]
[tex]1.25(8)+ 2.50(6) = 25[/tex]
[tex]1.25(10)+ 2.50(5) = 25[/tex]
[tex]1.25(12)+ 2.50(4) = 25[/tex]
[tex]1.25(14)+ 2.50(3) = 25[/tex]
[tex]1.25(16)+ 2.50(2) = 25[/tex]
[tex]1.25(18)+ 2.50(1) = 25[/tex]
[tex]1.25(20)+ 2.50(0) = 25[/tex]
Thus Caleb can buy 0,2,4,6,8,9,10,12,14,1,6,18,20 lip balms and
0,1,2,3,4,5,6,7,8,9,10 mini note books respectively
Now plotting these value in the graph, we get the below graph
Simplify the expression 2 × 36 − 24 ÷ 6
Answer:
68
Step-by-step explanation:
P- parentheses
E- exponential
M- multiplication
D- division
A- addition
S- subtraction
2 x 36 = 72
72 - 24 ÷ 6
24 ÷ 6 = 4
72 - 4 = 68
Answer:
68
Step-by-step explanation:
*Remember the order of operations PEMDAS*(Parentheses, Exponents, Multiplication and Division, Addition and Subtraction)
2 x 36 = 7224 / 6= 4now, 72 - 4= 68hope it helps:)
Which of the following is the BEST summary of this
paragraph?
A tsunami is not like normal ocean waves. It's a series
OA) of waves. You need to wait several hours for all of
them to pass.
Because a tsunami is not one wave, but a series of
several waves that can be as far as two hours apart,
OB)
you must wait several hours after the last wave in
order to be sure the tsunami is over.
A tsunami consists of not one but many waves that
come in one after the other. Not knowing whether the
OC)
tsunami is over unless more than two hours have
Answer:
I THINK IT IS OB
HOPE IT HELPS!
Answer:
B
Step-by-step explanation:
y=-2x+5 was shifted down 7 units what equation is it now
Answer:
[tex]y=-2x-2[/tex]
Step-by-step explanation:
we have
[tex]y=-2x+5[/tex]
This is the equation of a line in slope intercept form
where
[tex]m=-2[/tex] ---> the slope
[tex]b=5[/tex] ----> the y-intercept
we know that
If the given line was shifted down 7 units, then the new y-intercept is equal to
[tex]b=5-7=-2[/tex]
The slope of the new line will be the same that the original line, because are parallel lines
so
The new equation is
[tex]y=-2x-2[/tex]
Determine whether y2=3x+1 is a function.
The equation y2=3x+1 is a function.
Explanation:Determine whether y2=3x+1 is a function
A function is a relation in which each input has exactly one output. To determine if the equation y2=3x+1 is a function, we need to check if each input value of x corresponds to exactly one output value of y.
In this case, the equation represents a quadratic curve, which passes the vertical line test, meaning that it is indeed a function.
For example, when x=1, we can substitute it into the equation as follows: y2 = 3(1) + 1 = 4.
Therefore, for every value of x, there is a unique value of y, indicating that the equation y2=3x+1 is a function.
4/7 - -4/7
It’s confusing I calculated it but there’s no answer so I really need help
Answer:
Step-by-step explanation:
4/7 - (-4/7) = 4/7 + 4/7 = 8/7 or 1 1/7......a negative times a negative is a positive...so those two negatives turn into a positive...so ur basically just adding them
On a coordinate plane, a dashed straight line has a negative slope and goes through (0, 2), and (1, negative 1). Everything to the right of the line is shaded. The solutions to the inequality y > −3x + 2 are shaded on the graph. Which point is a solution? (0, 2) (2, 0) (1, −2) (−2, 1)
Answer:
(2,0)
Step-by-step explanation:
we know that
If a ordered pair is a solution of the inequality, then the ordered pair must satisfy the inequality
we have
[tex]y > -3x+2[/tex]
Substitute the value of x and the value of y of each point in the inequality and then compare the results
case a) (0, 2)
[tex]2 > -3(0)+2[/tex]
[tex]2 > 2[/tex] ----> is not true
so
the point not satisfy the inequality
therefore
The point is not a solution of the inequality
case b) (2,0)
[tex]0 > -3(2)+2[/tex]
[tex]0 > -4[/tex] ----> is true
so
the point satisfy the inequality
therefore
The point is a solution of the inequality
case c) (1, -2)
[tex]-2 > -3(1)+2[/tex]
[tex]-2 > -1[/tex] ----> is not true
so
the point not satisfy the inequality
therefore
The point is not a solution of the inequality
case d) (-2, 1)
[tex]1 > -3(-2)+2[/tex]
[tex]1 > 8[/tex] ----> is not true
so
the point not satisfy the inequality
therefore
The point is not a solution of the inequality
see the attached figure to better understand the problem
Answer:
(2,0)
Step-by-step explanation: