!!! HELP ME !!!
i just need the four letter code !!!
solve each box using the answer choices on the side in the picture !
Answers
Answer:
DHGB
Step-by-step explanation:
Let's start with 1.
The equation is in standard form (ax+by=c): -4x+2y=8
we'll put it into slope intercept form.
Add 4x onto both sides
2y=4x+8
divide by 2
y=2x+4
Parallel lines have the same slope, but a different y intercept. (the line parallel to this one will have a slope of 2 but a y intercept different from +4)
Looking at the answer choices, the only choice with a slope of 2 is D (y=2x-5)
So the answer to 1 is D
Now 2.
we're given 3 points. One of the points crosses the y axis, which is the y intercept. In this case, the line crosses the point (0,3)
That means the y intercept of the line is (0,3)
here's the line so far:
y=mx+3 (m is a placeholder for the slope)
when given a graph, we can use rise/run. Starting from the point (3,2), we can move 3 spaces to the left, and one up.
In a graph, if you move to the left or downwards, it's a negative move. If you move up or to the right, it's a positive move.
Since we went 1 space up (rise) and 3 spaces to the left, (run) the slope is -1/3
So the line is y=-1/3x+3
Perpendicular lines are negative and reciprocal. If you multiply their slopes, they will equal -1. Their y intercepts don't matter at all.
So to find the slope, we can use this equation.
-1/3m=-1
multiply by -3 on both sides
m=3
Looking at the answer choices, H is the only answer with a slope of 3. So the answer to 2 is H.
Now, 3
You can do the graph method like above for 2, but I'll just calculate the slope.
We're given two points, (-1,-2) and (0,2)
the formula for slope is (y2-y1)/(x2-x1)
we can label the points.
x1=-1
y1=-2
x2=0
y2=2
now, substitute into the equation.
m=(2--2)/(0--1)
m=4/1
the slope is 4.
Now let's use point slope form, which is y-y1=m(x-x1)
once again, sub. into the equation.
y+2=4(x+1)
do distributive prop
y+2=4x+4
subtract by 2
y=4x+2
As said above, parallel lines have the same slope.
Looking at the answer options, G also has the slope of 4
so the answer to 3 is G
Finally, #4
Equation: 3x+y=1
subtract 3x from both sides
y=-3x+1
As said above, perpendicular lines have slopes that multiply to equal -1.
-3m=-1
multiply by -1/3
m=1/3
so the slope of the line will be 1/3.
Looking at the answer options, B also has a slope of 1/3.
So the answer to 4 is B
The code is DHGB
Hope this helps!
Related Questions
6(-2x - 1) = -(13x+2) solve for x
Answers
Answer:
10
Step-by-step explanation:
-12x-12 = -13x-2
x= 10
Answer:
x=4
Step-by-step explanation:
-12x-6=-13x-2
+12x
-6=-x-2
+2
-4=-x/-1
x=4
The perimeter of a rectangular pool is 48 feet. Its length is 4 feet
more than its width.
Let the width of the pool be represented by x.
Which equation below can be used to describe the situation?
A x(x + 4) = 48
B 2x + 2(x + 4) = 48
С2x + 2x + 4 = 48
D 2x(x + 4) = 48
Answers
Answer:
B
Step-by-step explanation:
let's represent the width with x, if we represent the width with x then that makes the length x+4. Therefore the perimeter would be 2x+2(x+4)=48
-A triangle has sides with the measure of 11m, 11m, and 25m. State if this is a triangle
or not.
is it a triangle?
Answers
Answer:
Nope
Step-by-step explanation:
According to the Triangle Inequality Theorem, any 2 sides of the triangle must always be more than the third. Here, we can see that the theorem is violated because 11 + 11 < 25. Therefore, it is not a legitimate Triangle.
Kayla wants to purchase some candy. All varieties of candy are $2.50. Kayla buys strawberry and mango candy. Write an expression that represents the total cost.
Plz help me
Answers
Answer:
2.50s + 2.50m
Step-by-step explanation:
s stands for strawberry
m stands for mango candy
each candy costs 2.50
hope this helps a bit!!!
The sum of 7.2 and a number is 10.
First, write an equation to describe the situation.
7.2 + 3 = 10
What is the number?
The number is
Answers
Answer:
7.2 + x = 10
Step-by-step explanation:
I did 7.2 + x = 10 Because there was suspose to be a number in between
that we do not know so you have to put 7.2 + x = 10
Then... For the next question (The same question but asking the number in between) The second Question you do 7.2 - 10 and you get 2.8
The equation to describe the situation when the sum of 7.2 and a number is 10 is given so it is 7.2 + x = 10.
Calculation of an equation:Since
The sum of 7.2 and a number is 10.
So here we assume the number be x
So,
7.2 + x = 10
x = 2.8
hence, The equation to describe the situation when the sum of 7.2 and a number is 10 is given so it is 7.2 + x = 10.
Learn more about number here: https://brainly.com/question/15546484
The graphs of the function f(x)=x^2 is horizontally compressed to obtain function g. Write the equation for function g based on these graphs. Enter the correct answer in the box. Be sure to write your answer in terms of the f(x) function.
Plz helpp!!!
Answers
We know that the function g(x) is in the form ax². Since we know that it's parabola goes through the point (1,9), then:
[tex]g(1) = 9[/tex]
[tex]a\cdot(1)^2 = 9[/tex]
[tex]a = 9[/tex]
So [tex]\boxed{g(x) = ax ^2 = 9x^2}[/tex].
Answer: EDMENTUM AND PLATO
g(x)=f(3x)
Step-by-step explanation: I got it correct on the tutorial.
If the bearing from A to B is 034 what is the beating from B to A?
Answers
Step-by-step explanation:
This is called a back bearing
when the given angle is less than 180, then the back bearing is= the given angle + 180
34+180=214°
Jenny's frog made one jump of 2.34 meters. Christina's frog made jumps of 1.22 meters and 0.89 meters.
How much further did Jenny's frog jump in one jump than Christina's frog in two jumps combined?
Answers
Answer:
0.23
Step-by-step explanation:
2. i. Mr. h. wants to save $80,000 for his son to go to
Stanford. How much money at 5% interest does he need
to invest if he has 10 years (compounded monthly)?
ii. How much money per month would he have to invest to
reach the same goal?
Answers
Step-by-step explanation:
$80,000×5×10/100= 40,000
Work out the following and put them in there simplest form
[tex]\frac{3}{11}[/tex] ÷ [tex]\frac{3}{11}[/tex]
Answers
Answer:
1
Step-by-step explanation:
using the reciprocal rule
3/11÷3/11
thats the same as
3/11×11/3
3×11=33
11×3=33
33÷33=1
Will Mark Brainliest!!!
Please help! Thank you!!
What is the turning point of the graph of
f(x)=|x+2|−3?
A)(3, −2)
B)(−2, −3)
C)(−3, −2)
D)(−2, 3)
Answers
Answer:
I'm pretty sure it's B -2 -3 :))))
Solve with Quadratics
Answers
Answer:
x = 1 ± [tex]\sqrt{6}[/tex]
Step-by-step explanation:
Given
2x² - 4x = 10 ( divide through by 2 )
x² - 2x = 5
Using the method of completing the square
add ( half the coefficient of the x- term )² to both sides
x² + 2(- 1)x + 1 = 5 + 1
(x - 1)² = 6 ( take the square root of both sides )
x - 1 = ± [tex]\sqrt{6}[/tex] ( add 1 to both sides )
x = 1 ± [tex]\sqrt{6}[/tex] ← exact solutions
Answer:
[tex]x \pm\sqrt6 +1[/tex]
Step-by-step explanation:
Hello!
Standard form of a quadratic: ax² + bx + c
Solve:
2x² - 4x = 102x² - 4x - 10 = 02(x² - 2x - 5) = 0x² - 2x - 5 = 0Now, complete the square:
Take the b-value in our equation (-2)Divide it by 2 (-1)Square it (1)Add and subtract that in our equation:
x² - 2x - 5 = 0x² - 2x + 1 - 5 - 1 = 0Factor the perfect square trinomial:
(x - 1)² - 6 = 0(x - 1)² = 6[tex]\sqrt{(x-1)^2} = \sqrt{6}[/tex]x - 1 = ±√6x = ±√6 + 1The solutions are [tex]x \pm\sqrt6 +1[/tex]
Find the zero of the function:
y= 11x^2+25x-24
Answers
Simplify the ratio 20:50:100
Answers
Answer:
2:5:10
Step-by-step explanation:
Check
Match the fraction with the equivalent decimal or percentage.
3/20
38%
19/50
0.37
1/3
15%
37/100
33.3%
1/4
25%
Intro
Done
Answers
Answer:
See below
Step-by-step explanation:
Fraction Decimal
3/20. 15%
19/50. 38%
1/3. 33%
37/100. 37%
1/4. 25%
Answer:
3/20. 15%
19/50. 38%
1/3. 33%
37/100. 37%
1/4. 25%
Step-by-step explanation:
edge 2021
 which ordered pairs match the table ? X 0,1, 2,1,3 Y 2,2,3,4,1
Answers
Classify each triangle by its angle and by it sides
Answers
Answer:
right angles
Step-by-step explanation:
Can someone help its worth ✨15 points✨
Answers
Answer:
L is 132
3168 people voted for J
Step-by-step explanation:
help please :) i'll mark brainliest!
Answers
Answer:
Everything except the 3rd one!
Step-by-step explanation:
8. Alex is buying a pair of new Nikes. Champs decided to apply a markdown of 35%. He found a coupon online for an additional 10% discount. What is the final cost after the markdown and then coupon is applied if the Nikes original cost is $130?
Answers
Answer:
175
Step-by-step explanation:
What is the constant of proportionality between y and x in the graph?
Answers
Answer:
y=3x
Step-by-step explanation:
y=kx, where k is constant
3y, 1x...so 3y = 1x
check: looking at the graph at 4.5y, 1.5x where y and x intersect...
4.5=3(1.5)
3 x 1.5 = 4.5
Pls this is my last question !!
Answers
Answer:
the 1st 2nd and last one
Step-by-step explanation:
Answer:
The first one, the third and the fourth one.
Please someone help me
Answers
Write a system of equations
given the below information
then determine when their
companies will charge the same
amount. Bethany's company
charges a signup fee of $50 and
then $5 a month. Kami's
company doesn't charge a fee
but charges $10 a month.
Total Charge
28882383882
30
20
10
0
Answers
9514 1404 393
Answer:
y = 5x +50y = 10x10 monthsStep-by-step explanation:
The equation for the charge (y) by Bethany's company for x months is ...
y = 5x +50
The equation for the charge (y) by Kami's company for x months is ...
y = 10x
The charges are equal when ...
y = y
5x +50 = 10x . . . . use the expressions for y
50 = 5x . . . . . . . . subtract 5x
10 = x . . . . . . . . . . divide by 5
The companies will charge the same for 10 months.
tire rim has a diameter of 15 in. What is the circumference of the tire rim? Use 3.14 for Pi.
23.55 in.
46.10 in.
47.1 in.
94.2 in.
Answers
Step-by-step explanation:
[tex] \underline{ \underline{ \text{Given}}} : [/tex]
Diameter ( d ) = 15 in Pi ( π ) = 3.14[tex] \underline{ \underline{ \text{To \: find}}} : [/tex]
Circumference ( C )[tex] \underline{ \underline{ \text{Solution}} }: [/tex]
[tex] \boxed{ \sf{Circumference \: of \: a \: circle ( C ) = \pi \: d}}[/tex]
⇢ [tex] \sf{3.14 \times 15}[/tex]
⇢ [tex] \sf{47.1 \: in.}[/tex]
[tex] \red{ \boxed{ \boxed{ \text{Our \: final \: answer : \boxed{ \underline{ \tt{47.1 \: in.}}}}}}}[/tex]
Hope I helped ! ツ
Have a wonderful day / night ! ♡
▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁
4 (x-2) + 2 ( x + 1 )
Answers
Answer:
6−6 :)
Step-by-step explanation:
Your friend really wants to buy the newest coolest cell phone which will cost him $310 he gets a job detailing cars and suvs and plans to save all the money he earns if he gets paid $60 to detail a car and $85 to detail an suv which of the following inequalities can be used to determine how many of each he must detail in order to earn at least $310
Answers
Answer:
[tex]60c + 85s \geqslant 310[/tex]
Step-by-step explanation:
He needs to earn at least $310 so $60 per car is 60c and $85 per SUV is 85s. So the answer is the third option.
The required inequality:
60x + 85y >= 310
What is inequality?In mathematics, inequalities specify the connection between two non-equal numbers. Equal does not imply inequality. Typically, we use the "not equal sign ()" to indicate that two values are not equal. But several inequalities are utilized to compare the numbers, whether it is less than or higher than.
Given, a person gets paid $60 to detail a car and $85 to detail an SUV.
Let's assume he needs to detail x number of cars and y number of SUVs to earn at least $310.
Then, the amount earned by detailing x cars and y SUVs can be expressed as:
60x + 85y
According to the problem statement, he wants to earn at least $310, so we can write the inequality:
60x + 85y >= 310
This is the required inequality to determine the number of cars and SUVs he needs to detail in order to earn at least $310.
Learn more about inequalities here:
https://brainly.com/question/30231190
#SPJ5
how should i draw a)
please help its due soon :((
Answers
Answer:
I listed the coordinates below. Just place them on a graph and draw a line connecting the points.
Step-by-step explanation:
(-1,-8)
(0,-4)
(1,0)
(2,4)
(3,8)
Find the distance between the points A(10,-9) and B(8,7) round your answer to the nearest hundredth
Answers
Answer:
16.12 units
Step-by-step explanation:
These two points create a right triangle whose diagonal (hypotenuse) represents the desired distance.
Going from B(8, 7) to A(10, -9) involves two steps: Moving 2 units to the right from B(8, 7) to A(10, -9), and moving 16 steps down from B(8, 7) to A(10, -9).
Thus, the horizontal side of the triangle in question has length 2 units and the vertical side 16 units.
The length of the diagonal (which is the desired distance) is then
|AB| = +√(2^2 + 16^2) = +√(4 + 256) = +√260
To the nearest hundredth, this is |AB| = 16.12 units
5w = -75
it’s for my math homework
Answers
Answer:
w=-15
Step-by-step explanation:
desmos graphing calculator. Just switch the w for x