Answer:
how is this a math question lol
Suppose M is the midpoint of Segment AB, P is the midpoint of Segment AM, and Q is the midpoint of segment PM.
If a and b are the coordinates of A and B, find the coordinates of M, P, and Q in terms of a and b.
The coordinates of M, P and Q in terms of a and b are [tex]M = \frac{1}{2}\cdot a + \frac{1}{2}\cdot b[/tex], [tex]P = \frac{3}{4}\cdot a + \frac{1}{4}\cdot b[/tex] and [tex]Q = \frac{1}{8}\cdot a - \frac{1}{8}\cdot b[/tex], respectively.
In this question we are going to use definitions of vectors and product of a vector by a scalar. Based on the information given on statement, we have the following vectorial formulas:
Location of M
[tex]\overrightarrow{AM} = \frac{1}{2}\cdot \overrightarrow{AB}[/tex]
[tex]\vec M - \vec A = \frac{1}{2}\cdot \vec B - \frac{1}{2}\cdot \vec A[/tex]
[tex]\vec M = \frac{1}{2}\cdot \vec A +\frac{1}{2}\cdot \vec B[/tex]
[tex]M = \frac{1}{2}\cdot a + \frac{1}{2}\cdot b[/tex]
Location of P
[tex]\overrightarrow{AP} = \frac{1}{2}\cdot \overrightarrow{AM}[/tex]
[tex]\vec P - \vec A = \frac{1}{2}\cdot \vec M - \frac{1}{2}\cdot \vec A[/tex]
[tex]\vec P = \frac{1}{2}\cdot \vec A +\frac{1}{2}\cdot \vec M[/tex]
[tex]\vec P = \frac{3}{4}\cdot \vec A + \frac{1}{4}\cdot \vec B[/tex]
[tex]P = \frac{3}{4}\cdot a + \frac{1}{4}\cdot b[/tex]
Location of Q
[tex]\overrightarrow{QM} = \frac{1}{2}\cdot \overrightarrow{PM}[/tex]
[tex]\vec M - \vec Q = \frac{1}{2}\cdot \vec M - \frac{1}{2}\cdot \vec P[/tex]
[tex]\vec Q = \frac{1}{2}\cdot \vec P - \frac{1}{2}\cdot \vec M[/tex]
[tex]\vec Q = \frac{1}{2}\cdot \left(\frac{3}{4}\cdot \vec A + \frac{1}{4}\cdot \vec B\right) -\frac{1}{2}\cdot \left(\frac{1}{2}\cdot \vec A + \frac{1}{2}\cdot \vec B\right)[/tex]
[tex]\vec Q = \frac{1}{8}\cdot \vec A -\frac{1}{8}\cdot \vec B[/tex]
[tex]Q = \frac{1}{8}\cdot a - \frac{1}{8}\cdot b[/tex]
The coordinates of M, P and Q in terms of a and b are [tex]M = \frac{1}{2}\cdot a + \frac{1}{2}\cdot b[/tex], [tex]P = \frac{3}{4}\cdot a + \frac{1}{4}\cdot b[/tex] and [tex]Q = \frac{1}{8}\cdot a - \frac{1}{8}\cdot b[/tex], respectively.
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Please help me!!! Will give brainliest!
3x° + 36° = 156° (since alternate interior angles are equal)
3x° = 120 °
x = 40
If £2000 is placed into a bank account that pays 3% compound interest per year, how much will be in the account after 2 years?
Answer:
we gotta find compound amount here..
CA=compound amount
P=principal
R=rate of interest
T=time
PLEASE HELP I"M ON A TIMER!!!!!!
Δ RST ≅ ΔLMN
What are the values of m∠R and LM?
Enter your answers in the boxes.
I will mark BRAINLIEST!!!
Answer:
R=30 degrees Lm=6(square root of 3)
Step-by-step explanation:
R=L
LM=SR
The circle graph shows the results of a survey. Of those surveyed, 200 said yes. About how many people were surveyed?
Answer:
250 people
Step-by-step explanation:
let's first look for the missing 20%,
one way you can solve this is by cross multiplication:
since 80% is 200 then 80% = 200
and we know 20% is x then 20% = x (we use x because we don't know the amount of people)
so then we set it up:
[tex]\frac{x}{20}[/tex] × [tex]\frac{200}{80}[/tex]
now we cross multiply:
80x = 4000
= x = 50
now we need to find how many people were surveyed so we do:
200 + 50 = 250
250 people were surveyed
PLEASEEEE HELPPPP MEEEE
Why do you think that diagnosing a parasite infection can be difficult in some cases?
Answer:
They are difficult to diagnose through route medical tests. A careful analysis of signs and symptoms is far more productive in eliciting the diagnoses verses blood tests. At least through suck signs and symptoms the presumptive diagnosis of parasitic infestations can be made. It all just depends though.
Pls mark brainliest I would really appreciate it
Answer: They are difficult to diagnose through route medical tests. A careful analysis of signs and symptoms is far more productive in eliciting the diagnoses verses blood tests
What is the solution to the equation? √x+3=12
3
Step-by-step explanation:[tex] \sf \sqrt{x + 3 = 12} [/tex]
[tex] \sf = \sqrt{x = 12 - 3} [/tex]
[tex] \sf = \sqrt{x = 9} [/tex]
[tex] \sf = \sqrt{9} [/tex]
[tex] \sf = \sqrt{3 \times 3} [/tex]
= 3
The solution of the linear equation [tex]\sqrt{x+3} = 12[/tex] for the variable, x is 141.
Two algebraic expressions separated by an equal symbol in between them and with the same value of the expression are called equations.
Example = 2x +4 = 12
here, 4 and 12 are constants and x is variable
The solution of the equation can be calculated as:
[tex]\sqrt{x+3} = 12[/tex]
Squaring both side,
[tex]x+3 = (12)^2[/tex]
x+3 = 144
Subtract 3 from both the sides,
x = 141
The solution of the linear equation for the variable x is 141.
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What is the constant of proportionality for the relationship between 12 laps 1/2 hr
Answer:
24
Step-by-step explanation:
12 per half hour means 24 per hour
Given h(x) = 4x + 5 solve for when h(x) = 9 .
Answer:
3x = 5
Step-by-step explanation:
9x = 4x + 5
-4x -4x
3x = 5
Answer:
h(x) = 4x + 5 h(x) = 9
9 = 4x + 5 9 - 5 = 4 and 5 - 5 = 0
4 = 4x 4 divided by 4 equals 1
Answer is x = 1.
--------------------------------------------------------
Check your answer:
9 = 4x + 5
Input the 1 into the variable x's place in the equation.
9 = 4 X 1 + 5
And now solve.
4 X 1 + 5 = 9
So, now we know that our answer is fully correct.
Step-by-step explanation:
Hope this helps. If there are any questions please ask them below in the comments. If there are no questions please have a great rest of your day/night!
4< -2x + 3 <9
Compound inequalities
Answer:
-3 < x < -1/2
Step-by-step explanation:
4<-2x+3<9
1<-2x<6
-1/2 > x > -3
so
-3 < x < -1/2
PLEASE HELP ASAPPP!!!!!
Classify the system of equations and identify the number of solutions.
2x + y = 5
6x + 3y = 25
inconsistent; one
consistent, dependent; one
consistent, dependent; infinite
inconsistent; none
HELP ASSAP PLS
Step-by-step explanation:
2x + y = 5 (times 3)
6x + 3y = 25
↓↓↓↓↓↓↓↓↓↓↓↓
6x + 3y = 15
6x + 3y = 25
→ No solution ←
2x+y=5
y=-2x+53y=-6x+15--(1)6x+3y=25
3y=-6x+25As slopes are equal lines are parallel
So no solutions
Option D
How do you get the answer to these two questions? I don’t understand
Answer:
Hey, so it's actually pretty simple I'll try my best to explain it properly!
Step-by-step explanation:
So for the first blue circle the line that goes to the middle that's the radius. And to solve the area you need to know the radius. The formula to solve the area is A = [tex]\pi[/tex] [tex]r^{2}[/tex] so what we would do its 3.14 times 6 times 6 or 3.14 times 36 which would give us the area! Now for circumference, the equation for that is C = 2[tex]\pi r^{2}[/tex] which would look like 2 times 3.14 times 6 times 6 or 2 times 3.14 times 36 and that would give you the circumference.
The time, in minutes, that it takes Mark to bake cookies is given by t = 15 + 10d, where d is dozens of cookies. How long would it take Mark to bake 48 cookies?
Answer:
55
Step-by-step explanation:
15+10d
15+10(4)
15+40
55 minutes
It will take 55 minutes for Mark to bake 48 cookies.
15+10d
15+10(4)
15+40
55 minutes
How long does it take to bake a cookie?
Simply put, you can expect to bake cookies at 350 degrees Fahrenheit for 8-12 minutes. However, there are some things to consider when baking biscuits. The type of biscuit, the size of the biscuit, and the content of the fabric.
Preheat the oven to 350 ° F (or 325 ° F for a non-stick baking sheet). Place the cookie dough base about 2 inches apart on a non-oiled sheet pan. BRAKE for 10-14 minutes or until light brown. Cool 2 minutes; Remove from the top plate.
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Simplify 11 square root 1215
Answer:
9 • sqrt(15)
Step-by-step explanation:
5.
The table shows a meteorologist's predicted temperatures for an October day in Sacramento,
California.
Sacramento, CA
Predicted
a) What is a quadratic model for these data?
Time Temperature ("F)
8 AM
10 AM
64
b) According to the regression equation, at what time
will the temperature be the highest?
12 P.M.
72
78
2 P.M.
4 P.M.
81
6 PM
76
Answer:
b
Step-by-step explanation:
If f (x) = x^2 + 3, evaluate f (-4).
=
A) -5
B) 19
C
11
D) -13
Answer: B) 19
Step-by-step explanation:
To solve this problem, simply plug in -4 for x:
[tex]f(x)=x^{2} +3\\f(x)=(-4)^{2} +3\\f(x)=16+3\\f(x)=19[/tex]
Hope it helps :) and let me know if you want me to elaborate/explain further
Answer:
D. -13
Step-by-step explanation:
If you substitute -4 in for x you get -4^2+3, so when you simplify you get -16+3 which equals -13.
f(x)=x^2+3
f(-4)= -4^2+3
f(-4)= -16+3
f(-4)= -13
kylie makes $8.50 an hour working at a restaurant if she brings home $170 in her paycheck how many hours did she work
Answer:
20 hours
Step-by-step explanation:
hope this helps
Answer:
[tex]170 \div 8.50 = 20[/tex]
She has worked 20 hours at that restaurant
OMGGG PLS HELP ME WITH THIS QUESTION PLS PLS PLS!!! WILL MARK BRAINEST AND PLS PLS PLS DO EXPLAIN!!!
Answer:
38
Step-by-step explanation:
-(5×-7-3)
-(-35-3)
-(-38)
38
100 POINTS Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used. Match the systems of equations to their solutions. 2x + y = 12 x = 9 − 2y x + 2y = 9 2x + 4y = 20 x + 3y = 16 2x − y = 11 y = 11 − 2x 4x − 3y = -13 y = 10 + x -3x + 3y = 30 2x + y = 11 x − 2y = -7 x = 2, y = 7 arrowRight x = 5, y = 2 arrowRight x = 3, y = 5 arrowRight x = 7, y = 3
(1st picture): y=2x+3 and y=x+5
(2nd picture): y=4x+2 and y =3x+2
(3rd picture): y=2x+1 and y =x+2
(4th picture): 3x and x+3
The solutions to the system of equations are (5,2), no solutions, (7,3), (2,7), no solutions and (3,5) respectively.
What is the system of equations?In mathematics, a set of simultaneous equations, also known as a system of equations or an equation system, is a finite set of equations for which common solutions are sought.
(1) Systems of equations
2x + y = 12
x = 9 − 2y
See the graph given below the solution is the point (5,2).
(2) Systems of equations
x + 2y = 9
2x + 4y = 20
See the graph given below the solution is the point has no solution the two lines are parallel.
(3) Systems of equations
x + 3y = 16
2x − y = 11
See the graph given below the solution is the point (7,3).
(4) Systems of equations
y = 11 − 2x
4x − 3y = -13
See the graph given below the solution is the point (2,7).
(5) Systems of equations
y = 10 + x
-3x + 3y = 30
See the graph given below the system has no solutions.
(6) systems of equations
2x + y = 11
x − 2y = -7
See the graph given below the solution is the point (3,5).
Therefore, the solutions to the system of equations are given below in the figure.
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Evaluate |-6| + 3|4| + |-5| -0×6.
O 0
O 25
O 23
O 18
ILL GIVE BRAINLIST !!!!!!!
What did you partner think? i will answer in comments
If R is the midpoint of QS, QR = 6x – 51 and RS = 2x – 7, find QS.
Answer:
QS = 30
Step-by-step explanation:
Since R is the mid point QR = RS
Given QR = 6x – 51 and RS = 2x – 7 then
6x – 51 = 2x – 7, isolate like terms
6x -2x = 51 -7 , combine like terms
4x = 44, divide both sides by 4
x = 11
QS = QR + RS
QS = 6x -51 +2x -7 , combine like terms
QS = 8x - 58, substitute x= 11 in the equation
QS = 8*11 -58, multiply 8 and 11
QS = 88 -58
QS = 30
These three jobs were in the paper today.
Frank's Furters $6.24 /hr.
Harriet's Hair Styles $80 for 12 hours weekly
Babysitting $250 a month for 10 hours after school a week. (Assume 4 weeks is a month.)
Which job has the highest hourly pay?
Frank's Furters
Two of them are tied.
Babysitting
Harriet's Hair Styles
Answer:
Harriet's Hair Styles
Step-by-step explanation:
Frank's Furters $6.24 /hr
Harriet's Hair Styles $80 for 12 hours weekly
$80 / 12 hr = $6.66/hr
Babysitting $250 a month for 10 hours after school a week. (Assume 4 weeks is a month.)
$250 / (4 wk * 10 hr/wk) = $250/ 40 hr = $6.25/hr
Answer: Harriet's Hair Styles
Harriet's Hair Styles has the highest hourly pay at $6.67 per hour.
To determine which job has the highest hourly pay, we need to calculate the hourly wage for each job based on the information provided.
Frank's Furters: $6.24 per hour.
Harriet's Hair Styles: $80 for 12 hours weekly.
Babysitting: $250 a month for 10 hours after school a week.
Let's calculate the hourly wage for each job:
Frank's Furters: $6.24 per hour.
Harriet's Hair Styles: $80 for 12 hours weekly
= $80 / 12 hours
= $6.67 per hour.
Babysitting: $250 a month for 10 hours after school a week
= $250 / (4 weeks x 10 hours)
= $6.25 per hour.
Hence, Harriet's Hair Styles has the highest hourly pay at $6.67 per hour.
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Tony is saving money to buy a game. So far he has saved S18, which is two-thirds of the total cost of the game. How much does the game cost
Solve the inequality. Graph the solution.
y- 2≥-4
M is the midpoint of PQ. MQ = 5x + 8 and PQ = 6x + 56, find PM.
(4 Points)
Enter your answer
If M is the midpoint of PQ. MQ = 5x + 8 and PQ = 6x + 56, then PM = 58
Since M is the midpoint of PQ
PM + MQ = PQ................(*)
Given:
PQ = 6x + 56
MQ = 5x + 8
Substitute PQ and MQ into equation (*)
PM + (5x + 8) = 6x + 56
Collect like terms
PM = 6x + 56 - (5x + 8)
Expand the equation using the distributive rule
PM = 6x + 56 - 5x - 8
PM = 6x - 5x + 56 - 8
PM = x + 48.........(**)
Equate MQ and PM
MQ = PM
5x + 8 = x + 48
Collect like terms
5x - x = 48 - 8
4x = 40
Divide both sides by 4
4x / 4 = 40/4
x = 10
Substitute x = 10 into equation (**)
PM = x + 48
PM = 10 + 48
PM = 58
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PLEASE HELP !!!! SYSTEMS OF EQUATIONS
In the student government election, Maddie received 20% more votes than her opponent. A total of 1,485 votes were cast for both candidates. How many votes did Maddie receive?
Answer:
Maddie got 810 votes
Step-by-step explanation:
We'll call Maddie's votes x, and her opponent's votes y.
x + y = 1485
x = y + 0.20y (because she got the same number of votes as her opponent, PLUS another 20% of that number. Divide 20% by 100 to get the decimal equivalent) This can also be written as x = 1.2y
So our system is
x + y = 1485 and
x = 1.2y
Substitute the second equation's value for x into the first equation:
1.2y + y = 1485 then solve for y
2.2y = 1485
divide both sides by 2.2
y = 675
substitute that in and solve for x
x + y =1485
x + 675 = 1485
subtract 675 from both sides
x = 810
Please let me know if you have questions on this answer. Hope it helps.
Solve the equation: 8 = 1/3(a+5)
Answer:
a=19
Step-by-step explanation:
8=1/3(a+5) by dividing both sides by 1/3
24 = a+5 get 5 to other side with oposite sign
24-5 = a
a = 19
Answer:
a = 19
Step-by-step explanation:
8 = [tex]\frac{1}{3}[/tex] ( a + 5) ← multiply both sides by 3 to clear the fraction
24 = a + 5 ( subtract 5 from both sides )
19 = a
The amounts of e-waste generated in a region during two years were 14,200,000 tons and 10,700,000 tons. What was the total e-waste generated over these two years in the region, expressed in scientific notation?
2.4 9 x10^7
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