Answers
Answer:
y = - x² + 4
Step-by-step explanation:
The equation of a parabola whose vertex is on the y- axis is
y = ax² + c
where a is a multiplier and c is the y- intercept
• If a > 0 then minimum vertex
• If a < 0 then maximum vertex
Here vertex is a max, thus a = - 1 and c = 4
Then equation of parabola is
y = - x² + 4
Related Questions
Martin is seating people in the cars of a roller coaster. Each car can seat 8 people. Six of the roller coaster cars are yellow and nine of the roller coaster cars are green. People will be randomly seated in the roller coaster cars. What is the probability that the first person will be seated in a yellow roller coaster car?
Answers
Answer:
The probability is 2/5
Step-by-step explanation:
Here, we want to calculate the probability that the first person will sit in a yellow roller coaster car
The number of cars to select from is 6 + 9 = 15 cars
The number of yellow cars is 6
So the probability that the first person selects a yellow roller coaster car to seat is 6/15 = 2/5
(-11/6) + m= -2/9
SOLVE FOR M
Answers
Answer:
29/18
Step-by-step explanation:
Add -11/6 to both sides of the equation
m=-2/9+11/6 = -4/18+33/18=29/18
Find the distance between the point A(-4,3) and B(1,6)
Answers
Answer:
The distance would be (5,-3)
What is the base area.
Answers
Answer:
Area of the base is 10.5 cm².
Step-by-step explanation:
Formula for the volume of the given oblique prism = Area of the triangular base × Vertical height between two triangular bases
Vertical height = 6 cm
Volume = 63 cm³
From the formula,
63 = Area of the triangular base × 6
Area of the base = [tex]\frac{63}{6}[/tex]
= 10.5 cm²
Therefore, area of the base is 10.5 cm².
Can anybody help with this?
Answers
Answer:
12
Step-by-step explanation:
Because < this means less than. So therefore 5 is less than 12
153-22.5=?????????????????????
Answers
Answer:
130.5
Step-by-step explanation:
Answer:
130.5
Step-by-step explanation:
if correct mark brainliest plz
Did I do something wrong? I multiplied by 1.02 six times and got a realllllly ugly decimal.
Rebecca runs a quarter-mile each week. In each of the last 6 weeks her time has improved (decreased) by 2%, and she can now run a quarter-mile in 66 seconds. What was her time six weeks ago?
Answers
Answer:
75 seconds
Step-by-step explanation:
Here, we want to get her time 6 weeks ago.
We shall have an exponential model to link this all up
The exponential model would look like;
y = I(1 - r)^n
where y is the present time
I is the initial time she started with which we are calculating
r is the rate of change which is 2% = 2/100 = 0.02
n is the week number which is 6 in this case
So we have;
66 = I(1 - 0.02)^6
66 = I(0.98)^6
I = 66/0.8858
I = 74.5 seconds
This is approximately 75 seconds
Her time 6 weeks ago is 75 seconds
r/2=(r-4)/7 how do i solve this?
Answers
Thx hope it helps
CAN SOMEBODY PLEASE HELP ME NOW I AM IN A RUSH!!!!!!!!!!!!!!!!!!!
Which system of linear equations appears to have a solution of (3, 0)?
On a coordinate plane, 2 lines intersect at (0, negative 2).
On a coordinate plane, 2 lines intersect at (0, 1).
On a coordinate plane, 2 lines intersect at (3, 0).
On a coordinate plane, 2 lines intersect at (0, 3).
Answers
Answer:
i’m pretty sure it is 3 but i could be wrong
Step-by-step explanation:
please can anyone help me solve those questions with explanation thank you!!!
Answers
Step-by-step explanation:
A: X=4
Step 1: Distribute the 7 within the parenthesis which will give you:
7x - 21 = 7
Step 2: Add over the -21 to the other side of the = which will give you:
7x = 28
Step 3: Divide by 7 on both sides to get the final answer, X=4
B: M=9
Step 1: Multiply by 4 on both sides, to cancel it out on the right, which will give you:
32 = 3m + 5
Step 2: Subtract the 5 from each side, giving you:
27 = 3m
Step 3: Divide by 3 on both sides to get the final answer, M=9
C: X=28
Step 1: Subtract 9 from both sides, giving you:
x/2 = 14
Step 2: Multiply by 2 on both sides to give you:
x = 28 (This will be our final answer, there is nothing left to simplify.)
D: X=3
Step 1: Distribute the 2 on the left and the (-) on the right to give you:
5 + 2x + 10 = 10 - 4 + 5x
Step 2: Combine like terms and simplify to give you:
15 + 2x = 6 + 5x
Step 3: Subtract over the (2x) to give you:
15 = 6 + 3x
Step 4: Subtract over the 6 to give you:
9 = 3x
Step 5: Divide by 3 on both sides to get the final answer, X=3
is the surface area of the octahedron?
10.4 cm
12 cm
12 cm
12 cm
X
+
Answers
the answer is 576 2 cm
Step-by-step explanation:
hope i helped
Please help me I need this
Answers
Answer:
since it's increasing 15% each year, it'll be linear, having a slope of 15.
Step-by-step explanation:
Because the users are increasing a percentage over time the function would be exponential.
The answer is exponential.
During what times is Ann driving the fastest? Give a reason to support your answer
Answers
Answer:
6 and 8 minutes
Step-by-step explanation:
The graph shows her speed as being the highest and the table backes it up. 40mph is her top speed
please answer I will give 20 and brainiest
Answers
Answer:
#1
Step-by-step explanation:
-7- Go back 7 numbers from 0
6- Go foward 6 numbers from -7
-4- Go down 4 numbers from -1
-7+6=-1
Go four down from -1
(-1,-4)
Hope this helped :)
Which represents the constant in the expression: 2x - 8
Answers
Answer:
-8
General Formulas and Concepts:
Algebra I
Constants have no variablesStep-by-step explanation:
Step 1: Define
2x - 8
Step 2: Identify
Term 2x
Constant -8
Solve each equation.
X – 10 = 4
Math
Answers
Answer:
x=14
Step-by-step explanation:
Solving the equation x - 10 = 4, the value of x, which is the solution is calculated as x = 14.
How to Solve an Equation?Solving an equation simply involves determining the value of the variable in the equation, which is the unknown.
For example, we are asked to solve the equation, x - 10 = 4., what it simply means is that we need to determine what the value of x is in the equation that will make it true. Do the following:
x - 10 = 4
x - 10 + 10 = 4+ 10 [addition property of equality]
x = 14
Therefore, the solution of the equation is x = 14.
Learn more about equation on:
https://brainly.com/question/25678139
#SPJ6
Which of these methods of paying for college does NOT need to be repaid?
Stafford loans
Consolidation loans
Work-study
Private loans
Answers
Answer:
Work study
Step-by-step explanation:
I did that question.
PLEASE ANSWER ASAP WILL GIVE BRAINLIEST.
A function is represented by the graph.
Complete the statement by selecting from the drop-down menu.
The y-intercept of the function y=−2x+8 is
Choose... greater than less than or equal to
the y-intercept of the function represented in the graph.
Answers
Answer:
equal to
Step-by-step explanation:
The y intercept is when x = 0.
In the function y=-2x+8, when x=0, y=8.
In the graph, when x=0, y=8. You can see on the x axis 0 is in the middle, and if you move up the y axis, you see the line intersects y=8.
Thus both have the same y intercepts of 8.
please give thanks :)
hope this helps
Answer:
equal to
Step-by-step explanation:
i took the test on k-12 and i got it correct.
2X²+6X=
need real answer pls
Answers
But you can factor out 2x
Solution: 2x(x + 3)
Answer:
Solution:
2x×(x+3)
Step-by-step explanation:
oper brackets
Help is this correct !!!??
Answers
Answer:
Yes
Step-by-step explanation:
help please!!! asap!!
Answers
Answer:
answer is opposite sides parallel and congruent theorem
Help me i can’t do this
Answers
Answer:
[tex]\huge\boxed{\sf Star = 14}[/tex]
Step-by-step explanation:
Let snowman be x , star be y and shopping bag be z.
So, the given equations are:
1) x + y = 20 (Eq. 1)
2) z = x + x
z = 2x (Eq. 2)
3) z + x = 18 (Eq. 3)
Put Eq. (2) in Eq. (3)
2x + x = 18
3x = 18
Divide both sides by 3
x = 18 / 3
x = snowman = 6
Now, Put x in (Eq. 1)
6 + y = 20
Subtract 6 to both sides
y = 20 - 6
y = 14
So,
Star = 14
[tex]\rule[225]{225}{2}[/tex]
Hope this helped!
~AH1807Tim bought a video game console and games for $350. The video game console cost $200. Each game cost $25. How many games did Tim purchase?
Answers
Because 25x6=150 and he spent 200 on the console and he spent 350 total so your answer is $150
Answer:
Tim purchased 6 video games.
Step-by-step explanation:
Let's set the number of games Time purchased as x.
Due to each game costing $25, the total amount of money used on buying games would be ($25)x.
Hence, as the total amount of money used to buy both the console and the video games would be $350, the equation can be set as:
[tex]\$25x + \$200 = \$350[/tex]
[tex]\$25x = \$(350 - 200)[/tex]
[tex]x = \frac{\$150}{\$25}[/tex]
[tex]x = 6[/tex]
Therefore, Tim purchased 6 video games.
Hope this helped!
Help me increase 91 by 3/7
Answers
Answer:
130
Step-by-step explanation:
First calculate 3/7 of 91
- 91 / 7 * 3 = 39
Then add your answer on to 91
- 91 + 39 = 130
Answer:
The answer is 130
Step-by-step explanation:
Hope this helped have an amazing day!
Solve this equation: x/ 4 = 2.25
Answers
Answer:
x = 9
Step-by-step explanation:
x/4 = 2.25
9/4 = 2.25
STEP BY STEP IS IN PICTURE:
I have finals next week and I’m stressing out-
Any advice?
Answers
Answer:
Hmmm.... well for one thing I would at least review a few things, just so you can feel a bit more confident in your work, then if that doesn't work you can review more or get your mind off stuff by going somewhere fun. SLEEP It's kinda hard yes but still staying up all night studying and worrying isn't going to do anything but make you sloppy. Make sure you are well fed before said test. Mainly just don't strain yourself too much because like I said before it'll make it harder in class.
I'm sure you've heard this before but yeah it works if you really take it to heart
I hope this helps! <3 even a little bit?
a scientist mixes water (containing no salt) with a solution that contains 30% salt. she wants to obtain 210 ounces of a mixture that is 5% salt. how many ounces of water and how many ounces of the 30% salt solution should she use?
Answers
Answer:
er n4356463
Step-by-step explanation:
Find an
equation for the perpendicular bisector of the line segment
whose endpoints (7,9) and (-1,3).
are
Answers
Step-by-step explanation:
A perpendicular bisector is a line that cuts a line segment connecting two points exactly in half at a 90 degree angle. To find the perpendicular bisector of two points, all you need to do is find their midpoint and negative reciprocal, and plug these answers into the equation for a line in slope-intercept form.
any more help just ask :)
Leah has an account balance of –150 dollars. Which of the following represents a debt greater than –150 dollars?
Answers
Answer:
-175
Step-by-step explanation:
bc its farther than -150 from the 0
PLS HELP ASAP!!!!!!!!!!!!!!
Answers
Answer:
okay, but with what should i help?