Answers
Explanation:
Recall that the general point-slope form is [tex]y - y_1 = m(x - x_1)[/tex] where m is the slope and [tex](x_1, y_1)[/tex] is the point the line goes through. We see that the 2 and the m match up, so m = 2 is the slope.
Side note: We can rewrite that given equation into y - (-5) = 2(x - (-1)) to see that the line goes through the point (-1, -5)
Answer:
C: 2
Step-by-step explanation:
y + 5 = 2x + 2 (distribute 2)
y = 2x -3 (subtract 5 from both sides)
2x means: slope times x
Related Questions
Craig collects stamps. He collected a total of 225 stamps. If 68% of the stamps he collected were foreign, how many other stamps did he collect
Answers
32% of 225 = 72
72 other stamps
A history teacher is writing a test worth 100 points. She uses multiple-choice questions worth 6 points
each and true/false questions worth 2 points each. She wants the test to have three times as many
multiple-choice questions as true/false questions. Let m represent the number of multiple-choice
questions on the test, and let t represent the number of true/talse questions. Which system of
equations can be used to find how many each type of question she should write?
6m + 2t = 100
m=t+3
6m + 2t = 100
m = 3t
3m+t=100
m=31
6m + 2t = 100
t = 3m
Answers
Answer:6m + 2t= 100
t=3m
Step-by-step explanation:
The table of values shows the height of a buoy compared to the sea floor over time as the tide goes in and out. This can be modeled by a sinusoidal function.
Which statements are true?
Select EACH correct answer
The maximum value of the function is 5.8
The amplitude of the function is 5.8
The period of the function is 24
The frequency of the function is 24
Answers
Answer:
1st statement is true
2nd is false (amplitude is (max - min) ÷ 2 so (5.8 - 4.6) ÷ 2 = 0.6)
3rd is true
4th is false (frequency is the reciprocal of period, they can't be the same)
Please help i need this
Answers
Answer:7
Step-by-step explanation:
David had $30 to spend on three gifts.He spent 10 ¼ dollars on gifts A and 5 ⅘ dollars on gifts B.How much money did he have left for gifts C.
Answers
Answer: $13.95
Step-by-step explanation:
1/4 of a Dollar is 25 cents
4/5 of a Dollar is 80 cents
30 - 10.25 = 19.75
19.75 - 5.80 = 13.95
David has $13.95 to spend of Gift C
Thank you so much :)
Answers
Answer:
b
Step-by-step explanation:
A parabola has its minimum point at (3,-5) and the y coordinate of the y-intercept is -2.
What is the equation of the parabola?
Answers
Answer:
y = [tex]\frac{1}{3}[/tex] x² - 2x - 2
Step-by-step explanation:
x-coordinate of the vertex of a parabola is ( [tex]- \frac{b}{2a}[/tex] )
y = f(x) = ax² + bx + c
(x, y) ∈ f(x)
~~~~~~~~~
{ (0, - 2), (3, - 5) } ⊂ { (x, y): y = ax² + bx + c }
a(0)² + b(0) + c = - 2 ⇒ c = - 2
a(3)² + b(3) + ( - 2) = - 5
9a + 3b - 2 = - 5 ⇒ 3a + b = - 1
[tex]- \frac{b}{2a}[/tex] = 3 ⇒ b = - 6a
[tex]\left \{ {{3a+b=-1} \atop {b=-6a}} \right.[/tex]
3a + ( - 6a) = - 1
a = [tex]\frac{1}{3}[/tex]
b = - 2
y = [tex]\frac{1}{3}[/tex] x² - 2x - 2
The equation of the parabola for the given values is y = x²/3 - 2x - 2.
What is a parabola?A parabola is the part of the conic section of which the points are equidistant from a fixed line called as directrix and a fixed point known as focus.
The general equation for the parabola is given as,
y = ax² + bx + c
Where c is the y-intercept.
Substitute c = -2 as per the question to obtain,
y = ax² + bx - 2
At (3,-5) the parabola has minimum value which implies y' = 0 as below,
y' = 2ax + b = 0
Substitute x = 3 to obtain,
2a × 3 + b = 0
=> -6a = b
And, y = -5 at x = 3 which gives,
-5 = 3²a + 3b - 2
=> 9a + 3b = -3
Substitute b = -6a to get,
9a - 18a = -3
=> a = 1/3
Which implies b = -6 × 1/3 = -2
Now, the equation for the parabola becomes as below,
y = x²/3 - 2x - 2
Hence, the required equation of the parabola is obtained as y = x²/3 - 2x - 2.
To know about parabola click on,
https://brainly.com/question/4074088
#SPJ2
PLEASE HELP MEEEEEEEE IM BEGGING
Answers
Answer:
30 degrees
Step-by-step explanation:
it is 30 degrees
Solve the equation
90= -20x
Plz help
Answers
Answer:
-9/2
Step-by-step explanation:
Answer:
x = -4.5
Step-by-step explanation:
90 = -20x
-90 = 20x
-90/20 = x
x = -4.5
Leave a like and mark brainliest if this helped
A car travels 160 miles in 4 hours. How many miles per hour does the car
travel?
Answers
Answer:
40 mph
Step-by-step explanation:
160÷4 = 40 miles per hour
Answer:
40miles per hour
Step-by-step explanation:
distance traveled/time spent=speed(velocity)
160/4=speed (velocity)
40mph
yesterday 50 bakery customers muffins and 11 of those customers bought bran muffins if 150 customers buy muffin's tomorrow how many bran muffins will the bakery need to bake
Answers
Answer:
33 banana muffins
Step-by-step explanation:
11/50 = x/150
50x=1650
50x/50=1650/50
x=33 !
1. Which expression is equivalent to 6(2y – 5)?
A. 12y - 5
B. 5 - 12y
C. 12y – 30
D. 30 - 12y
Answers
Answer:
C. 12y - 30
Step-by-step explanation:
6 * 2y = 12y
6 * -5 = -30
12y - 30
Micheal and his family are at a basketball game. Micheal decides that he is buying. He buys pretzels and sodas. The pretzels cost $3 and the sodas cost $2. His purchase of 5 items totaled $12. How many pretzels and how many sodas did Michael purchase?
Answers
HELP.....to support the high school the local business will donate five dollars for every ticket sold at the homecoming game. If 121 students, 158 home, and 47 visitors tickets were sold, how much money did they donate?
Answers
Answer:
2130 but see the note below
Step-by-step explanation:
Remark
It does not matter whether the home team or the visiting team got the support. All that matters is the total number of tickets. Just eye balling it looks like about 1500 dollars.
Equation
Total Donation = 5 * (121 students + 158 + 47)
Solution
Total Donation = 5(426)
Total Donation = 2130
Note:
There is a problem with with. 121 students cannot be included in the 158 or in the 47. If they are, there is no way to be sure what the answer is. I have solved it as though there were 3 separate categories. If that isn't so, you will get it wrong.
please help!!!! trigonometric ratios !!!
Answers
Answer:
X=47.68degree
Step-by-step explanation:
tanx=56/51
x=tan^(-1)(56/51)
=47.68
Answer:
What do we know?
SOH CAH TOA
SOH stands for opposite + hypotenuse
CAH stands for adjacent + hypotenuse
TOA stands for opposite + hypotenuse
We know from above: the opposite and the hypotenuse
tanx=56/51
x=tan^(-1)(56/51)
=47.68
-hope this helps you get it correct!, if u need anymore help just ask
(07.08 LC)
The table below shows the values of y for different values of x:
x y
0
0
1
5
2
10
3
15
Answers
Answer:
b bro
Step-by-step explanation:
What is the value of y in the equation 4(5y − 8 − 2) = 145 − 15? (4 points)
a
8.5
b
9.7
c
10.5
d
42.5
Answers
Step-by-step explanation:
[tex]4(5y - 8 - 2) = 145 - 15 \\ 4(5y - 10) = 130 \\ 5y - 10 = 130 \div 4 \\ 5y - 10 = 32.5 \\ 5y = 32.5 + 10 \\ 5y = 42.5 \\ y = 42.5 \div 5 \\ = 8.5 \: or \: 8\frac{1}{2} [/tex]
Answer:
the answer is 8.5
Step-by-step explanation:
Pls help! I am really stuck.
Find the domain of this graph.
Answers
Answer:
8
Step-by-step explanation:
The domain is from the points (-4,0) through (4,0).
plz help me fast Thomas goes out to eat at a restaurant and orders fajitas for $12.95 and orders a soft drink for $1.50. Tax is 7% on his total order, and thomas plans to leave with a 20% tip on the entire bill including tax. How much will his dinner cost including tax and tip.
Answers
Answer:
$18.55
Step-by-step explanation:
I added the meal and drink then used a calculator and addded that total plus 7% of it then I added 20% of that to get 18.55
12.95+1.50 = x
x + 7% = y
y+ 20%
Based on the graph to the right, describe what is happening as specifically as you can, you do
not need to measure anything accurately.
Answers
it takes less time to get to the school .-.
Juan is solving the problem 7 divided by 1/3. What related multiplication fact will he use to solve?
Answers
To check the answer
I don’t know if this is the answer you need
Hope it helps :D
Will give brainliest
Answer choices:
Yes
No
Answers
Answer:
No
Step-by-step explanation:
Answer:
yes
Step-by-step explanation:
Determine whether each point is a solution of y = 3x – 8.
a. (0, -8)
b. (6,-10) C. (-2,-2)
d. (4,4)
HELP ILL GIVE BRAINLIEST
Answers
Answer:
B and C are not the solution of y=3x-8
A and D are the solution of y=3x-8
Substitute x-values to the equation.
Remember that (x, y).
Which of these pairs of points defines a line with slope 0? OA) (1, 4) and (-4,4) OB) (4, 1) and (-4, 4) OC) (-1,4) and (4, -4) OD) (4, -1) and (4, -4)
Answers
Answer:
D.
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
I took the test on EDGE 2022
please help i don’t understand
Answers
Answer:
18.38Explanation:
since this triangle is a right-angled triangle and one its angles equals 45° then it's an isosceles right triangle which means that the side opposite 45° (the side to the left) is equal to 13 too.
so according to pythagoras theorem c = √(a²+b²)
x =√(13²+13²)
x = √(169+169)
x = √338
x ≈ 18.38
note: in the question it's mentioned to find y! and I believe it is just an error! it's about to find x and that's more resonable!
Sally has 2 cats and each cats eats 1/4 tin of cat food every day
Sally buys 9 tins of cat food
For how many days will the cat food feed her 2 cats?
Answers
Answer:
18 days
Step-by-step explanation:
Given, Amount of cat food eaten by each cat per day = 1/4 th of a tin
Amount of cat food eaten by 2 cats per day = 1/4 × 2 part of a tin = 1/2 of a tin No. of days 9 tins will last = 9 × 2 = 18
Is the mean of 5 negative numbers positive or negative? explain
Answers
Answer: Always negative
Write an equation of the circle with center (-2, 6) and radius 7.
Answers
Answer:
( x + 2 )² + ( y - 6 )² = 49
Step-by-step explanation:
→ Write the form of an equation of a circle
( x - a )² + ( y - b )² = r²
→ Substitute in the centre remembering to switch the signs
( x + 2 )² + ( y - 6 )² = r²
→ Substitute in radius
( x + 2 )² + ( y - 6 )² = 49
After 5 years, Marcel's account earned $900 in interest. If the interest rate (in decimal form) is 0.06, how much did Marcel initially invest?
Answers
Answer:
$3000
Step-by-step explanation:
I= PRT÷100
where,
I = interest = 900
T= 5
R/100 = 0.06
P = ?
I= PRT/100
900= P × 5 × 0.06
P = 900÷ 0.3
P= 3000
PLANTS The table shows the heights of
sixteen corn stalks.
3. What were the heights of the shortest
and tallest stalks?
Answers
Answer: blue, to love me, to nice, to i love you, to be a good boy and suck.
Step-by-step explanation:
hi I am girl
