Answer:
3.) 10
Step-by-step explanation:
8x-2(x+1) = 7x+8
8x-2x-1=7x+8
6x-1=7x+8
-1=1x+8
+1 +1
1x+9
/x
x=1+9
x=10
I need help with this asap
F(x)=X-11
F(-3)= -3-11
F(-3)=-14
F(x)=X-11
F(-2)=-2-11
f(-2)=-13
F(x)=X-11
F(4)= 4-11
f(4)=-7
F(x)=-7x+1
F(-3)=-7(-3)+1
F(-3)=-21+1
F(-3)=22,
F(x)=-7x+1
F(-2)=-7(-2)+1
F(-2)= 14+1
f(-2)=15,
F(x)=-7x+1
F(4)=-7(4)+1
f(4)=-28+1 =-27
F(x)=X+8
F(-3)=5, f(-2)= 6 , f(4)=12
PLEASE HELP SEE PICTURE!!!!!
Find the equation of the parabola with its focus at (0,-4) and its directrix y = 4.
OA) y= -1/16x²
O B) y = -1/gt²
O C) y = -1/4x²
OD) y = 1/26x²
Answer:
A. y = -1/16 x²
Step-by-step explanation:
Given the focus of a parabola at (0, -4) and the directrix at y = 4
Let (x0, y0) be any point on the parabola.
First get the distance from this point (x0, y0) to the point (0, -4)
The formula for calculating the distance between two points is expressed as;
d1 = √(x1-x2)²+(y1-y2)²
d1 = √(x0-0)²+(y0+4)²
d1 = √x0²+(y0+4)²
Also find the distance between the point (x0, y0)and the directrix y = 4
The distance d2 = |y0-4|
Equate both distances
d1 = d2
√x0²+(y0+4)² = y0-4
Square both sides
(√x0²+(y0+4)²)² = (y0-4)²
x0²+(y0+4)² = (y0-4)²
Simplify by opening the brackets
x0²+y0²+8y0+16 = y0²-8y0+16
Collect the like terms
x0²+y0²+8y0+16 - y0²+8y0-16 = 0
x0²+8y0+8y0 = 0
x0²+16y0 = 0
16y0 = -x0²
y0 = -x0²/16
Since the point (x0, y0) is also true for any values of the coordinate then we can replace x0 with x and y0 with y to have:
y = -x²/16
y = -1/16 x²
Hence option A is a correct
Answer:
A. y = -1/16 x²
Step-by-step explanation:
what is 45x3,679= what is the sum
Answer:
679
Step-by-step explanation:
30 POINTS
Javier wants to go to the movies. He has some money saved but does not want to use all his savings on a movie ticket. Javier’s mother offers to pay some of the cost of the ticket for every pound of potatoes he peels for her.
The graph shows the cost to Javier for the purchase of the movie ticket after peeling x pounds of potatoes for his mother.
Answer:
True
False
True
True
False
Graph: The graph is show the cost to Javier for the purchase of the movie ticket after peeling x pounds of potatoes for his mother.
From the given graph, it is shown that,
On x - axis represent the pounds and y - axis represent the cost.
On y- axis graph intersect at y= 6 and on x- axis graph intersect at x= 8.
Now from the graph, it is observe that,
(1)The movie ticket is $6. So, it is true.
(2) Javier earn up to $8 peeling potatoes for his mother. Hence it is false.
(3)Javier's mother pays him $0.75 for each pound of potatoes he peels. Thus, it is true statement.
(4)Javier dose not use any of his own money towards the purchase of the tickets when he peels 8lb of potatoes. Hence it is true statement.
(5)Javier only need to peel 2 lbs of potatoes to not use any of his own money. Hence it is false statement.
For more details, please prefer this link:
https://brainly.com/question/11557377
Which equation shows the relationship in the table?
A) y = 15x
B) y = 30x
C) y = x + 15
D) y = 15/x
What can you half and then add 9 to get 15?
Answer:
12
Step-by-step explanation:
12-6=6
6+9=15
15-9=6
What three consecutive negative integers have a sum of -66?
Answer:
-21+-22+-23=-66
-21,-22,-23
When you subtract an number from both sides of an inequality, do you flip or change the direction of the inequality?
Answer:
you only have to flip the inequality if you you are divide or multiplying by a negative
I just went on g0091# and looked up Nicki Minaj million dollar ##### I went to g0091# images to get a pic from the vid and a woman’s legs open and her area was showing the song is called tap out not million dollar
Answer:ok
Step-by-step explanation:
Answer:
Dam, that’s tuff. I love Nikki Minaj!!!
Step-by-step explanation:
The band is purchasing t-shirts for their spring concert. The t-shirts cost $12 each plus a one time fee of $10 for shipping. The band paid $1210 for the purchase. Which equation should be used to find how many t-shirts the band purchased?
Answer:
(1210 - 10) / 12.
Step-by-step explanation:
In order to solve the problem we need to start by removing the shipping fee, $10, and divide the result by the cost of each t-shirt, $12. The resulting answer will tell us how many t-shirts the band purchased.
Answer:
Might be (x)= $12x+10
Step-by-step explanation:
need help asap! will give extra points...
7) what is the slope and
Gintercept of the line with
man (Direct Message)
to rent a car
c) slope:-3, y-intercept. -5
a) Slope: -3 g * +-3?
y-intercept:
ģ-intercept: -3
2=a 3=d
4= 5=d 6=a
5
6) Slepen
d) Slope 5,y intercept:-3
Answer:
is questions no 6 is the correct answer
Which of the following is the best definition for the word "proportion"
an average combined value of numbers in a data set
an equation stating that two ratios are equivalent
a relationship between quantities
a number that describes the direction and steepness of a line
PLS HELP
describe the rotation of J
Answer:
The coordinates of J' when rotating by 90° counterclockwise will be: J'(3, 1)
The coordinates of J' when rotating by 90° clockwise will be: J'(-3, -1)
Step-by-step explanation:
Square JKLM with vertices
J(1, -3)K(5, 0)L(8, -4)M(4, -7)We have to determine the answer for the image J' of the point (1, -3) when we rotate the point by 90° counterclockwise, we need to switch x and y, make y negative.
In other words, the rule to rotate a point by 90° counterclockwise.
P(x, y) → P'(-y, x)
As we are given that J(1, -3), so the coordinates of J' will be:
J(1, -3) → J'(3, 1)
Therefore, the coordinates of J' when rotating by 90° counterclockwise will be: J'(3, 1).
When the point is rotated by 90° clockwise, we need to switch x and y, make x negative.
In other words, the rule to rotate a point by 90° clockwise.
P(x, y) → P'(y, -x)
As we are given that J(1, -3), so the coordinates of J' will be:
J(1, -3) → J'(-3, -1)
Therefore, the coordinates of J' when rotating by 90° clockwise will be: J'(-3, -1)
WILL MARK BRAINLIEST IF THAT MATTERS
Let’s take our function from before: f(x) = x + 2. Plug in some values for x. f(2) = 4. f(3) = 5. f(4) = 6.
Now we have a set of inputs and outputs for this function. You can write them as a set of ordered pairs, like this: (2, 4), (3, 5), (4, 6).
Like all sets of ordered pairs, these points can be plotted on a graph. If you plot
f(x) = x + 2 and connect the points, you will see that the graph is a straight line. This means that f(x) = x + 2 is a linear function.
Which of these is a set of inputs and outputs for the function f(x) = 2x + 4?
A
(1, 2), (2, 5), (3, 8)
B
(1, 4), (2, 6), (3, 7)
C
(1, 5), (1, 8), (1, 10)
D
(1, 6), (2, 8), (3, 10)
Answer:
D
Step-by-step explanation:
Plug them in
Input is the x value, or x, and Output is the y value, or f(x)
You can figure it out with only the first set of coordinates
Ima flip the equation around: 2x + 4 = f(x)
so, substitute x for the x coordinate: 2(1) +4 =f(x) = 2 + 4 = f(x) = 6
the correct y value when x is equal to 1 is 6, and only D satisfies this rule.
Hope this helped! :)
Answer:
d
Step-by-step explanation:
Li bought five lip balms. Each lip balm costs the same amount. She spent a total of $7.25.
a. Using the variable c to represent the cost of each lip balm, write an equation that represents the situation. (1 pt)
b. Solve the equation. (2 pts – 1 pt correct answer, 1 pt for showing work)
Answer:
divide the cost of the lip balm by 5
Step-by-step explanation:
7.25=5c
7.25/5=c
c=1.45
brainliest please
What is the significance of Verrazzano’s 1524 exploration?
Answer:
In his account of his 1524 voyage to the North American continent, and exploration of the coast from Florida to Newfoundland, Verrazzano recorded details unknown to European mapmakers. His discoveries shaped the construction and look of maps that would be used by explorers who came after him.
Step-by-step explanation:
Hi can anyone answer this right ill give brainliest
Answer:
The last one
Step-by-step explanation:
You start off with 50.
It says the water is being drained so the slope is negative.
answer thiss pls geometry question
Answer:
ITS B
Step-by-step explanation:
Help anyone what’s the answer
Answer:
7.5
Step-by-step explanation:
You divide 1.5/0.2 and get 7.5
yw xd
3x2 - 4x = -2???????????????????
Answer:
3×2 - 4x=-2
6-4x=-2
2x=-2
x=-2/2
x=-1
Answer:
3×2 - 4x=-2
6-4x=-2
2x=-2
x=-2/2
x=-1
Write an equationthen solve.
You earn $5 per hour babysitting last year. This is $3.25 less than what you earned per hour
thid year. How
much do you earn per hour this year?
30 hours to 18 hours express as a fraction in simplest form
Answer:
12 Hours went by
Step-by-step explanation:
30 - 18 = 12
12 = 12/1
Fraction answer: 12/1
Helen gathered data on the fuel efficiency of compact sedans. Her sample contains 80 data points, and the standard error of the mean is approximately 0.595. What is the standard deviation? Round your answer to the nearest hundredth.
Answer:
5.32
Step-by-step explanation:
It took me a while to figure this out myself, here is how I found the answer:
The question gives sample number(80) and the standard error(0.595).
To get the standard error number they use this equation:
[tex]\frac{standard-deviation}{\sqrt{sample-population} }[/tex]
So to find the standard deviation, take [tex]\sqrt{sample-population}[/tex] and times it by the standard error to get the answer.
[tex]\sqrt{80}[/tex] x 0.595 = 5.321841786449499
And then round to the nearest hundredth: 5.32
Answer:
- 5.32
(got it right on edmentum)
please look at the picture below so you are assured that this is the right answer↓Step-by-step explanation:
"If three angles and two sides of two triangles are congruent, are the triangles congruent? Why or why not?"
Which equation shows that 5 is a factor of 45?
Choose 1 answer:
A: 45 = 5x9
B: 45 = 225 ÷ 5
C: 45 = 5 + 40
D: 45 = 50 - 5
From the list of available options, the equation that shows that 5 is a factor of 45 is (a) 45 = 5 * 9
What are factors?The factors of a number are the set of numbers (less than the actual number) that can divide the original number without leaving a remainder
How to determine the equation that shows that 5 is a factor of 45?As stated above, factors can divide the original number
The numbers are given as:
45 and 5
Such that 5 is a factor.
This means that
45 = 5 * x
Where x is another factor of 45
Divide both sides of the equation 45 = 5 * x by 5
x = 9
Substitute 9 for x in the equation 45 = 5 * x
45 = 5 * 9
Hence, the equation from the list of given options that shows that 5 is a factor of 45 is (a) 45 = 5 * 9
Read more about factors and multiples at:
https://brainly.com/question/219464
#SPJ1
Answer:
45=5 x 9
Step-by-step explanation:
its the right answer if youre too lazy to read the other answer lol
A list contains 7 consecutive even numbers in ascending order.The largest number is 30 and the smallest is 12 less than this.The mode is 20 and median is 22.If the sum of the two remaining numbers is 50,find all the number
Answer:
18, 20, 20, 22, 24, 26, 30
Step-by-step explanation:
We know that the largest number of the list is 30 and the smallest number is 12 less than that, which is 30 - 12 = 18.
This is our list so far: 18, __ , __ , __ , __ , __ , 30
The median of a set is the middle number of the set. In this case, since there are 7 terms in the set, the median, which the problem states is 22, must be the 4th number, since the 4th number is in the middle.
This is our list now: 18, __ , __ , 22, __ , __ , 30
Now, let's deal with the mode. The mode of a set is the term that shows up the most. Since the set is in ascending order and 20 < 22, we know that the two numbers in between 18 and 22 must be 20 and 20. This means that no term can show up more than once, with the exception of 20 because it is the mode.
This is our list now: 18, 20, 20, 22, __ , __ , 30
Finally, we'll deal with the last two numbers. We know that they must be even and that they both must be in between 22 and 30 (since the set is in ascending order). We also know that the two numbers must be different (see last paragraph) and that they sum to 50. The only two numbers that satisfy all of these conditions are 24 and 26, so they must be our last two numbers.
Therefore, the answer is 18, 20, 20, 22, 24, 26, 30. Hope this helps!
Fast food chain surveyed a random sample of students to determine what pizza they prefer cheese pizza was referred by 840 students pepperoni pizza was preferred by 28 students based on the results how many of the 340 students can be expected to prefer cheese pizza
Answer: 200 students
Step-by-step explanation:
Here is the complete question:
Fast food chain surveyed a random sample of students to determine what pizza they prefer. Cheese pizza was preffered by 40 students pepperoni pizza was preferred by 28 students. Based on the results how many of the 340 students can be expected to be for cheese
Number of studensts that prefered Cheese pizza = 40
Number of students that prefered pepperoni pizza = 28
Total number of students = 68
Fraction for those that prefer cheese = 40/68 = 10/17
We then multiply the fraction gotten by 340. This will be:
= 10/17 × 340
= 10 × 20
= 200 students
Whoever answers right gets a Brainly
Answer: (0,-4)
ur welcome pls brainlist
Answer:−2x+2y=8
The slope-intercept form is y=m+b, where m is the slope and b is the yintercept.y=mx+b
Rewrite in slope-intercept form.
Tap for more steps...y=x+4
Step-by-step explanation:
