Answer:
is this on khan academy?
could someone help me with this please
Answer:
D
Step-by-step explanation:
ALL OF THE ABOVE they were selling weapons and most Americans were isolationist
A salesman needed to sell a used car. He priced it at $4,500 the first day it was on the
market. The second day he reduced the price by 12%. What was the price of the used car after this reduction?
Answer:
$3960
Step-by-step explanation:
12% of $4,500 is 540.
Subtracting the 12% means taking away $540 from $4,500, which gives you $3960
What is the y-intercept of the function f(x) = -2/9x + 1/3
Answer:
Step-by-step explanation: substitute 0 in for x for the y intercept
I don't understand how to do this
9514 1404 393
Answer:
B, E
Step-by-step explanation:
You are give a table of values of x and f(x). You are told that g(x) = (1/2)f(x), and you are asked for points (x, g(x)) that match that description.
It can be useful to mentally, or actually, add a third column to the table that shows the values of g(x). Each of those is half the corresponding value of f(x), because that is what g(x) = (1/2)f(x) means.
Having done that, you can then compare the ordered pairs (x, g(x)) to those in the answer list to see which ones match. The ones that match are highlighted in green in the attachment:
(-1, -2) . . . . . . 2nd choice
(6, 3/2) . . . . . 5th choice
Write the equation of the line that passes through points (-4, 5) and (0,13) in slope-intercept form.
Answer:
The answer is
[tex]y = 2x + 13[/tex]
Step-by-step explanation:
Remember:
[tex]Slope-intercept form: \: \\ y = mx + b \\ \\ m = slope \\ b = y - intercept[/tex]
[tex]M = \frac{y_2 - y_1}{x_2 - x_1} [/tex]
First: Find the slope.
[tex]M = \frac{13 - 5}{0 - ( - 4)} = \frac{8}{4} = 2[/tex]
.
Second: Solve for the y-intercept
[tex]y = mx + b \\ 5 = 2( - 4) + b \\ 5 = - 8 + b \\ \frac{+ 8 = + 8 \: \: \: \: \: \: \: \: }{13 = b} [/tex]
.
Third: Plug in.
[tex]y = mx + b \\ y = 2x + 13[/tex]
The corresponding sides of triangles ABC and DEF are congruent. Which statements are always true for triangles ABC and DEF ? Select all that apply.
What is the measure of angle F in this triangle? *
S
45°
E
80°
Q
D
Answer:55·
Step-by-step explanation:
Javier wants to put in a home theater. The area of the space for the screen is 20 ft by 16 ft. What is the largest home theater screen he can purchase, in feet, if the size is determined by the length of the diagonal?
Step-by-step explanation:
I dont know I need help I have this answer in my test and I need help plz
Answer:
25
Step-by-step explanation:
Find the slope of the two points below
Answer:
-3/2
Step-by-step explanation:
Formula for slope is y2-y1/x2-x1
3-5/3-1
-3/2
Help pls 6th grade math i will give brainliest
Answer:
It is c
Step-by-step explanation:
(y x 40) + (y x 8)
40y + 8y
48y
y x 48 = 48y
A trumpet cost $234.36 after tax. The price was $217 before tax. What was the percent of sales tax charged?
If you are good at math pls help me and use the screenshot below!
Answer:
if im right it should be 10
Step-by-step explanation:
because 3 can go into 30 ten times and the burgers cost 3 dollars
Answer:
a. the number of hamburgers they can buy if they buy no hotdogs
Step-by-step explanation:
The price is already present and the X-intercept has the same price as the Hamburgers
Hopefully this helps :)
The triangle below is a right triangle Find the length of the missing side provide in simplified radical form
Answer:
[tex]2\sqrt{10}[/tex]
Step-by-step explanation:
Take [tex]a^{2} +b^{2} +c^{2}[/tex], let x represent a, 9 represent b, and 11 represent c.
Now, plug your variables into the equation:
[tex]x^{2} +9^{2} =11^{2}[/tex]
Simplify:
[tex]x^{2} +81=121[/tex]
Subtract:
[tex]x^{2} =40[/tex]
Take the square root of 40:
[tex]x=2\sqrt{10}[/tex]
I thought of a 2-digit number. It's a multiple of 9 and the sum of its digits is five times smaller than the number itself. What is my number?
Step-by-step explanation:
Since the sum of the digits must be an integer, the number itself must also be a multiple of 5.
Lowest common multiple of 5 and 9 = 45.
Therefore the number could be 45 or 90.
5(9 + 0) =/= 90, so 90 is incorrect.
Since 5(4 + 5) = 45, 45 is the answer.
Answer: 45
Step-by-step explanation:
We know that it has to be a 2-digit number. Its the multiple of 9. We see there is a number in the question. Five. I simply took 9 and multiplied it by 5 which gave me a total of 45.
1. Y+7=-10
2. 8=x+5
5. r+4=7
6.-11+y= -8
Answer:
1. 3
2. 3
5. 3
6. 3
Step-by-step explanation:
Answer:
Step-by-step explanation:
1. y = -17
2. x = 3
5. r = 3
6 y = 3
solve for x it is a parallelogram
pls help
Answer:
x = 5
Step-by-step explanation:I hope that this answer will help youAnswer:
[tex]3x + 2 = 17 \\ 3x = 15 \\ \boxed{x = 5}[/tex]
5 is the right answer.How many Wednesdays go into 180 days if you start on Monday?
200 points down the drain lets see how fast I can get rid of the rest of my 126 points.
How bout a 100 point question? Hehe
Answer:
lezgoooooooooooooooooo
Answer:
THANK U AHHAH
Step-by-step explanation:
LAST ONE I-I-I PROMISE >
Answer:
Step-by-step explanation:
Putting value of z = 3
6(3)2+ 2(3) + 10
6(9) + 6 + 10
54 + 16
70
What is the completely factored form of 2x^2-32?
Step-by-step explanation: 2(x+4)(x-4) is the factored form of 2x^2-32.
Answer:
2[(x+4)(x-4)]
Step-by-step explanation:
2x2-32
2(x2-16)
2(x2-4^2)
2[(x+4)(x-4)]
PLEASE HELP! :C BRAINLEST WILL BE GIVEN!
the answer's 85
Step-by-step explanation:
pemdas ig
Which expression shows a way to find 438 + 197 + 362?
Answer:
.
Step-by-step explanation:
we are asked to write an expression that shows how to multiply 4 and 362 using place value ans expanded form. The expanded form of 362 is 300 + 60+ 2. IN this case, the expression is 4*(300 +60+ 2) that is we distribute 4 to the numbers inside that is 1200 + 240 + 8 equal to 1448
I need the equation that passes through this point( and yes its a dif one)
Answer:
Step-by-step explanation:
this is okay ... use the point-slope formula [y-y1=m(x-x1)] with your given point.. also m is the slope.. which as is.. is undefined.. so just leave it like that.. the teacher is making this too abstract thou.. to make sense
y-2=m(x-(-3))
y-2 = m(x+3)
y-2 = mx +3m
y = mx +3m +2
that's all you could do for now.. until the slope is defined :)
Answer:
y-2=m(x-(-3))
y-2 = m(x+3)
y-2 = mx +3m
y = mx +3m +2
Step-by-step explanation:
An artist creates an abstract sculpture that appears as a box perched on top of a post. The box is in the shape of a cube with edges measuring 5 inches each. It is placed on top of a post in the shape of a rectangular prism with a length of 3 inches, a width of 4 inches, and a height of 18 inches. The volume of the entire sculpture (box and post) is (how many) cubic inches.
Answer:
the nswer is 37
Step-by-step explanation:
Here are four numbers.
0.43 3/7 43.8% 7/16
Write these numbers in order of size.
start with the smallest number.
First convert all th fractions into decimal :
3/7 =0.428
7/16=0.4375
0.43=remain same (already given in decimal form)
43.8%=0.438
now arrange them in one row (horizontally) then it will be easy to arrange it.
0.428 , 0.4375 , 0.43 ,0.438
=0.428 , 0.43, 0.4375 ,0.438
= ans) 3/7, 0.43, 7/16, 43.8%
Graph the inequality on the axes below.
(Can someone please help)
Answer:
Step-by-step explanation:
first put the inequality into slope intercept form (y-mx+b)
x-3y</=18
-3y</=-x+18
y>/=1/3x-6 (you have to flip the sign since you are dividing by a negative number)
then graph it (i attached a picture)
to figure out what side to shade in you can substitute the point (0,0) in for x and y. if it is true you shade in the part of the graph that includes (0,0).
0>/=1/3(0)-6
0>/=-6
Choose the graph of this equation. y = 2.5x
BRAINLIST IF RIGHT!!!!
Answer:
The First Graph (top left)
Step-by-step explanation:
bottom left: y = 3x
top right: y = 2x
bottom right: y = 3x
The top left is the only correct one
I need a, b, and c. I don’t quite understand this.
9514 1404 393
Answer:
a) y = (x -4)² -4
b) (4, -4)
c) translated 4 right, 4 down
Step-by-step explanation:
a) Apparently "graphing form" is a reference to "vertex form." That form is ...
y = a(x -h)² +k . . . . . . parabola with vertex (h, k) and vertical scale factor 'a'
The coefficient of x² in your given equation is 1, so a=1. The values of h and k can be found as follows.
'h' is the opposite of half the x-coefficient in your equation, so is h = -(-8/2) = 4. The value of k is the square of h, subtracted from the constant in your equation: k = 12 -h² = 12 -16 = -4. (This applies when a=1, as here.) These calculations are the "cut to the chase" version of "completing the square."
The method of "completing the square" has you consider the x-terms separately from the constant term:
y = (x² -8x) +12
To "complete the square", you want to make the terms in parentheses be a perfect square trinomial. You do that by adding the square of half the x-coefficient. In order to keep the same equation, you need to subtract an equivalent amount outside parentheses:
y = (x² -8x +(-8/2)²) +12 -(-8/2)² . . . . . add and subtract (-8/2)²
y = (x -4)² +(12 -16)
Then the vertex form is ...
y = (x -4)² -4 . . . . and the vertex is (h, k) = (4, -4).
The graphing calculator plot attached confirms this vertex value.
__
The problem statement tells you that you can also find this form by averaging the x-intercepts. If you factor your equation, you get ...
y = (x -6)(x -2)
The x-values that make these factors zero {6, 2} are the x-intercepts. Their average (6+2)/2 = 4 is the x-coordinate of the vertex (h). You can find the y-coordinate of the vertex by evaluating y when x=4: y = 4² -8·4 +12 = -4. So, the vertex by this method is (h, k) = (4, -4), and the equation in graphing form is ...
y = (x -4)² -4 . . . . as above.
__
b) As we saw above, the vertex coordinates are (h, k) = (4, -4).
__
c) The vertical scale factor 'a' is 1, so the only transformation done on the graph is to move the parent vertex (0, 0) to the location (4, -4). That is, the graph has been translated 4 units right and 4 units down. (In the attached, the parent function is shown with a dashed line.)
What is the slope of the line with equationy-3=-x-2)?
3)
(42).
Answer:
Step-by-step explanation:
-3 = -x - 2
the equation is a bit hard to read in your questions but if that is the correct equation then the slope is -1
For the school play, the advance tickets cost 3, while tickets at the door cost 5. Thirty more tickets were sold at door than in advance, and was collected. How many of each kind of ticket were sold? Write your answer in a sentence.
Answer:
Number of tickets sold in advance = 310
Number of tickets sold at the door = 340
Step-by-step explanation:
Note: This question is not complete. The complete question is therefore provided before answering the question as follows:
For the school play, the advance tickets cost $3, while tickets at the door cost $5. Thirty more tickets were sold at the door than in advance, and $2630 was collected. How many of each kind of ticket were sold?
The explation of the answer is now given as follows:
Let a represents number of tickets sold in advance. Therefore, we have:
a = number of tickets sold in advance at $3 each
a + 30 = number of tickets sold at the door at $5 each
The total amount collected can be represented by this equation:
3a + 5(a + 30) = 2630
Solving for a, wee have:
3a + 5a + 150 = 2630
8a = 2630 - 150
8a = 2,480
a = 2,480 / 8
a = 310
Therefore, this implies:
Number of tickets sold in advance = 310
Number of tickets sold at the door = a + 30 = 310 + 30 = 340