Answer:
The student should subtract 8 from each side not add 8
Step-by-step explanation:
Point slope form is
y-y1 = m(x-x1) where m is the slope and (x1,y1) is a point on the line
y - -8 = -6(x -2)
y+8 = -6(x-2)
Distribute
y+8 = -6x+12
Subtract 8 from each side
y+8-8 = -6x+12-8
y = -6x+4
The student should subtract 8 from each side not add 8
Answer:
y -(-8) = -6(x - 2)
y -(-8) = -6x + 12
y -(-8) + 8 = -6x + 12 + 8 (this step is incorrect as minus into minus is plus therefore when taking 8 to the right hand side we must subtract it from the left hand side
y = -6x + 20
the correct equation would be : y= -6x+4
A car repair shop charged $80 per hour for labor and $210 for the parts of a car. If the total cost of repair for the car was $490, how many hours did it take to repair the car? (1 point)
Answer:
80x + 210 = 490
x = 3.50 per hour
Step-by-step explanation:
If Mac were to get 76 apples from her friends and then get 3 more from the store, and then find two absolutely fine apples in the sewers, then go for a walk and find 7500 apples in someone's car, how many healthy apples would she find? Bet you can't solve it ;)
Answer:
3?
Step-by-step explanation:
Answer:
None because the apples are all poisoned.
Step-by-step explanation:
Simplify the expression (3 − 4)(6 + 7) − (2 − 3). show your work
Answer:
-12
Step-by-step explanation:
[tex]=-1\cdot \left(6+7\right)-\left(2-3\right)\\=-1\cdot \:13-\left(2-3\right)\\=-13-\left(-1\right)\\=-12[/tex]
f(x) = -x2 + 3x + 13
Find f(-10)
Answer:
f(x) = -x2 + 3x + 13
f(-10) = - (-10)2 + 3(-10) + 13
f(-10) = 20 - 30 + 13
f(-10) = 3
what is 3/8 as a desimle
Answer:
0.375
Step-by-step explanation:
Answer:
decimal is 0.375.
Step-by-step explanation:
just divide 8 by 3
Solve for x: 15x²=x+2
hope its helps u
Explanation
Can you answer these plz?
Answer: the answer is d
5) A rectangular piece of paper is 10cmn long and 5cm broad.find its area,
A store owner sold 6 sodas for $12.00 and 8 bags of chips for $6.00. What is the difference between the
unit price of a paint brush and the unit price of a pen?
Answer:
$30.40
Step-by-step explanation:
Before Sarah does open her account, she sees her grandmother for the holidays. Grandma wants to contribute to Sarah’s ROTH and even matches her contribution, giving her an additional $500 to invest. Now that Sarah has an initial investment of $1000, how much would Sarah have at age 68 based on her predicted rate of return from historical data
Answer:
2,9457
Step-by-step explanation:
100+7% = 1.07
(1.07)^50 = 29.45702506
y = 1000(29.46)
y = 29,460
find the missing angles
Answer:
1: 41
2: 85
3: 95
4: 85
5: 36
6: 49
7: 106
pleaaaaaaaaaaseeeeeeeee heeeeeeeeeeeelllllllllllllllllpppppppppppppppppp
Answer:
C
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
When dividing exponents, you can subtract them from eachother.
So, x^2/x = x y^3/y^-3=y^6 z^2/z^2 = z^0 = 1
Question is down below
Answer:
Step-by-step explanation:
2+6=8
8x divide by 5=1.6x
4x-3=1x
1.6x=1x
Can you help me please.
what do you want us to do with the equation? evaluate it? solve for X? solve for y? if you don't tell us then we cannot solve it
Step-by-step explanation:
you never really specified what you want us to do with the equation
pls help will mark brainliest
solve the system using a matrix.
Answer:wertyuiop[]\]
';lkjhgfd
Step-by-step explanation:
suppose that p is the probability that a randomly selected person is left handed. The value (1-p) is the probability that the person is not left-handed. In the sample of 100 people, the function V(p)= 1000 p(1-p) represents the variance of the number of left-handed people in a group of 100.
a) What value of p maximizes the variance?
b) What is the maximum variance?
Answer:
a) 1/2
b) 250
Step-by-step explanation:
The start of the question doesn't matter entirely, although is interesting to read. What we are trying to do is find the value for [tex]p[/tex] such that [tex]1000p(1-p)[/tex] is maximized. Once we have that [tex]p[/tex], we can easily find the answer to part b.
Finding the value that maximizes [tex]1000p(1-p)[/tex] is the same as finding the value that maximizes [tex]p(1-p)[/tex], just on a smaller scale. So, we really want to maximize [tex]p(1-p)[/tex]. To do this, we will do a trick called completing the square.
[tex]p(1-p)=p-p^2=-p^2+p=-(p^2-p)=-(p^2-p+1/4)-(-1/4)=-(p-1/2)^2+1/4[/tex].
Because there is a negative sign in front of the big squared term, combined with the fact that a square is always positive, means we need to find the value of [tex]p[/tex] such that the inner part of the square term is equal to [tex]0[/tex].
[tex]p-1/2=0\\p=1/2[/tex].
So, the answer to part a is [tex]\boxed{1/2}[/tex].
We can then plug [tex]1/2[/tex] into the equation for p to find the answer to part b.
[tex]1000(1/2)(1-1/2)=1000(1/2)(1/2)=1000*1/4=250[/tex].
So, the answer to part b is [tex]\boxed{250}[/tex].
And we're done!
Please help!!! Confused
Answer: Please post your question!
Step-by-step explanation:
Answer:
i will gladly help, i just need the question lol
Step-by-step explanation:
the area of a square plot is 529 m² . What is the length of each side of the plot?
Answer: 279,841 cm2
Step-by-step explanation: 279,841 cm2
-1/4 + (-2/7)
Get the sum of the problem
Answer:
-0.53571428571
Step-by-step explanation:
which equation best repersents the line graphed above ?
Answer:
x = -4
Step-by-step explanation:
The line intersects the x-axis at -4.
Answer:
x= -4
Step-by-step explanation:
Find the length of the indicated side in each triangle, to nearest unit.
Answer:
A= 56
E= 59
Step-by-step explanation:
All triangle are 180 degrees so
A.
71 + 53 = 124
180- 124 = 56
B.
70 + 51 = 121
180 - 121 = 59
Hope this helps
Anthony drives 15 km at 40 kph and return at the rate of 60kph , what is the average rate for the entire round trip
9514 1404 393
Answer:
48 kph
Step-by-step explanation:
The distance is immaterial, as long as it is the same at both speeds. The total time for some distance d is ...
t = d/40 +d/60
And the average speed is ...
2d/t = 2d/(d(1/40 +1/60) = 2/(1/40 +1/60) = 2(40)(60)/(40+60) = 4800/100 = 48
The average rate for the round trip is 48 kph.
_____
Additional comment
This value is called the harmonic mean of the two speeds. It is the reciprocal of the average of the reciprocals of the speeds.
Select the correct answer. graph A graph B graph C graph D Which graph correctly represents x + 2y ≤ 4? A. graph A B. graph B C. graph C D. graph D
Answer:
B is the answer hope you get it right
Answer:
Graph B Would Be Your Answer Just Got It Right On Plato
Step-by-step explanation:
Can some pls help. Thank you
Answer:
39
Step-by-step explanation:
You have a supplementary angle wich is the straight line. Supplementary is equal to 180°. So you would subtract 141° from 180°. 180°-141°=39°.
I really need help from you brainy users.
I don't expect you to write out a whole entire paragraph but give me some tips regarding moving out of my parents house before I turn 18.
Answer:
well, i guess ill tell you the way i did it. i rented a storage space, rented my apartment and bought all of my furniture before moving out of my parents house so i was totally ready to move out. then, when the day came to move out, i planned the entire day beforehand, planned where my furniture would go and did all the planning before actually leaving. anything else you wanna know? ill answer any questions
Step-by-step explanation:
1.) Identify the triangle congruence postulate or theorem (SSS, SAS, ASA, AAS, or HL) that proves the
triangles are congruent. If the triangles are not congruent, state not congruent.
HINT: label the corresponding congruent parts in just one of the triangles.
(6 total points: 1 point for each correct congruence postulate)
PLEASE NEED HELP ASAP!!
Two triangles are congruent if they meet they both meet the rules for congruency
The rules that makes the given triangles congruency are;
a) SSS
(b) SAS
(c) ASA
(d) Not congruent
(e) AAS
(f) HL
Reasons:
(a) Segment QS ≅ Segment QR; Same number of tic marks indicating congruency
Segment SP ≅ Segment PR; Same number of tic marks indicating congruency
Segment QP ≅ Segment QP; Reflexive property
Therefore;
ΔPQS ≅ ΔPQR by Side-Side-Side, SSS, rule of congruency(b) Segments AC, BC, on ΔABC ≅ Segments CD, CE, on ΔCDE Given
m∠DCE ≅ m∠ACB; Vertically opposite angles postulate
Therefore;
ΔABC ≅ ΔDEC by Side-Angle-Side SAS, rule of congruency(c) Segment ST ≅ Segment TU; Given
m∠RST = m∠VUT = 90°; Given
∠VTU = ∠RTS; By vertical angle theorem
Therefore;
ΔRTS ≅ ΔUTV by Angle-Side-Angle, ASA, rule of congruency(d) Not congruent because given parameter Side Side Angle not a condition for congruency
Not congruent
(e) ∠GHJ ≅ ∠GFJ; Given
∠HJG ≅ ∠JGF; Given
Segment GJ ≅ Segment GJ; By reflexive property
Therefore;
ΔGFJ ≅ ΔGJH; By Angle-Angle-Side, AAS similarity rule(f) Hypotenuse AB ≅ Hypotenuse DE; Given
Leg AC ≅ Leg DF; Given
Therefore;
ΔABC ≅ ΔDFE; by Hypotenuse Leg, HL, rule of congruencyLearn more here:
https://brainly.com/question/21301647
A real estate agent has $500 to spend on newspaper ads. If each ad costs $100, how many ads will the real estate agent be able to buy?
Write the equation using the graph In slope-intercept form
Answer:
y=(2/3x)+2
Step-by-step explanation:
Selected Points: (3,4) & (-3,0)
Slope (m) = (y2-y1) / (x2-x1)
m=(4-0) / [3-(-3)]
m=4/(3+3)
m=4/6
m=2/3
Point Slope Form: y-y1=m(x-x1)
y-4=(2/3)(x-3)
y-4=(2/3x)-2
y=(2/3x)+2
What is an equation of the line that passes through the point (-6,-1) and is perpendicular to the line 6x-y=7
Answer:
y=-1/6x-2
Step-by-step explanation:
Lets find the slope of the given line
6x-7=y,m=6
The slope of the perpendicular line would be=-1/6
Using the point-slope form y-y1=m(x-x1)
y--1=-1/6(x--6)
y+1=-1/6(x+6)
6y+6=-x-6
6y=-x-6-6
6y=-x-12
y=-1/6x-2
Marisol bought a soda for $1.99 and 6 bags of chips, which cost "m" dollars each. Which equation represents
the total amont, T, that Marisol spent?
The equation which represents the total amount, T, that Marisol spent is [tex]T = 1.99 + 6m[/tex]
Let the total amount spent be T.Let the cost of bags of chips be m.Given the following data:
Cost of soda = $1.99To find the equation which represents the total amount, T, that Marisol spent:
Translating the word sentence into an algebraic expression, we have;
6 bags of chips = [tex]6m[/tex]
The total amount is equal to:
[tex]T = 1.99 + 6m[/tex]
Therefore, the equation which represents the total amount, T, that Marisol spent is [tex]T = 1.99 + 6m[/tex]
Read more: https://brainly.com/question/13282374
