Answer:
-9or
Step-by-step explanation:
im not sure, i reccomend using a slope calculator
5) Carmen bought a movie for $18.60. The next day the movie was selling
for $20.30. What was the percent of change?
PLS HELP ILL GIVE U POINTS :)
Explain how you know the following system of equations has at most 2 solutions.
Solve the system algebraically. Show your work.
Solve the system by graphing.
y= 2x-1
y= x^2-9
Answer:
Step-by-step explanation:
Answer:
The said explanation is the answer.
Step-by-step explanation:
1) Graphing the first function (y = 2x-1). When the exponents of the variables are all 1, that is there are no square, cubes, etc. the equation is a line. Then it is enough to find two points to draw it. We can calculate two points assigning a number to x and calculating the corresponding number for y. For example, when x= 0 y= 2 times 0 -1 = -1. Then the line will pass from the point (0,-1). We need a second point, we can take x=1, then y = 2 times 1 -1 = 1. The line will pass from (1,1). We can mark the two points on the plane and draw the line from these two points.
2) Graphing the second function (y = x^2-9). A quadratic equation is of the form: ax^2+bx+c= 0. We have: y= f(x) -9. Set y=0. We have the quadratic equation: x^2-9=0. Using the algebraic identity: a^2-b^2=(a+b)(a-b). We can rewrite x^2-9=0 as x^2-3^2=0: [(x+3)(x-3)=0] - [(x+3)=0,(x-3)=0] - [x= -3, x= 3]. Hence, there are two solutions for x. So we have two x-intercepts: (-3,0) and (3,0). To find the y-intercept, set x=0: [(y = (0)^2-9=0)] - [(y=-9)]. Hence the y-intercept: (0,-9)
In conclusion, this system of equations at most has two real solutions, since two points of both functions intersect each other.
Here's the graph:
If f(x) = x2 – 3, find f (5)
Answer:
5*2 - 3
10-3
7
Step-by-step explanation:
mark me as the brainliest
can someone answer this and maybe explain it?
Answer:
yea what he said..........
What is the solution to the equation? -16x=80
Answer:
x = -20
Step-by-step explanation:
just divide -4 into both sides
Write the equation of the line fully simplified slope intercept form.
Answer:
Y=5/2x -4
Step-by-step explanation:
Write the equation in slope-intercept form. What are the slope and y-intercept?
-2x-11y=5
a. y=2/11x+5/11;slope: 5/11;y-intercept: 2/11
b. y= 2/11x+5/11;slope: 2/11; y-intercept: 5/11
c. y= 2/11x-5/11;slope: 2/11; y-intercept: -5/11
d. y= 2/11x-5/11;slope: -2/11; y-intercept: -5/11
Answer:
The Answer is D
Step-by-step explanation:
I hope This helps
His supplies cost him $3.25 for a pitcher of lemonade. To make a profit, Ryan will apply a 68% markup. Which is the amount of markup Ryan will add?
helpp
Answer: 212.50%
Step-by-step explanation:
The area of a circle will _____ be larger than the area of a polygon circumscribed about the circle.
always
often
sometimes
never
Answer:
Often
Step-by-step explanation:
Hope this helps :D
208=k(k+3) find the value of k
Jordan can ride her skateboard 75 meters in 30 seconds. How long will it take Jordan to ride her skateboard 1,500 meters? Solve on scrap paper and enter your answer on Zearn. meters seconds 75 30 It will take Jordan seconds to ride her skateboard 1,500 meters.
Answer:
20 minutes
Step-by-step explanation:
A figure is located entirely in the third quadrant. If it is reflected over the y-axis, what will the signs of the coordinates be?
Answer:
Step-by-step explanation:
Hello friend!!!
The signs of the coordinates will be ( - , - )
This is because it is located in the third quadrant and the coordinates of any point on the third quadrant are ( - , - )
Hope this helps
plz mark as brainliest!!!!!!!
The signs of the coordinates should be ( - , - )
Signing of the coordinates:Since we know that there are 4 quadrants. In 1st quadrant, the sign is (+,+). In the 2nd quadrant, the sign is (-,+). The 3rd quadrant, the sign is (-,-), And, the fourth quadrant, the sign is (+,-),
So based on this, the above sign should be considered.
learn more about coordinates here: https://brainly.com/question/13596846
Can somone please help me asap I’ll mark brainlist!!!!!
Answer:
405.45
Step-by-step explanation:
405.45
yw
-2x - y = -13
2x + 2y = 8
Answer:
the first one is (6.5,13)
the second one is (4,4)
Step-by-step explanation:
-2x-0=-13
-2x=-13 divide -2 by -13
x=6.5
-2(0)-1y=-13
0-1y=-13
-1y=-13
13
so that gives you (6.5,13)
2x+2(0)=8
2x+0=8
2x=8 divide two by eight
x=4
2(0)+2y=8
0+2y=8
2y=8 divide two by eight
y=8
help me plzzzzzzzzz
Jia baked two kinds of muffins. She baked 27 blueberry muffins. The number of cranberry muffins she baked is represented by the equation shown. 27÷3=9
Answer:
I am pretty sure its A.
Step-by-step explanation: I can't explain right now, I got to go, but I'm pretty sure.
Find the missing endpoint if one endpoint is at (5.-7) and the midpoint is at (15.1).
Answer:
(25, 9)Step-by-step explanation:
Given Point (5, -7) and midpoint (15, 1)To findMissing endpointSolutionMidpoint formula:
x = (x1 + x2)/2, y = (y1 + y2)/2Substituting values:
15 = (5 + x2)/2 ⇒ 5 + x2 = 30 ⇒ x2 = 30 -5 ⇒ x2 = 251 = (-7 + y2)/2 ⇒ -7 + y2 = 2 ⇒ y2 = 2 - (-7) ⇒ y2 = 9Missing endpoint is:
(25, 9)write an Equation that represents the lines
Answer: The answer is Y=3/4x -4.5
Step-by-step explanation: You can find the slope by unsing rise over run by using the points given, you go up 3 and go to the side 4 times to get to the other point. You use tose 2 numbers and put them into a fraction you put it like this(The amount you went up/ the amount you went to the side) the you find where you cross the y-intercept which is 4.5 the you plug it into the point slope formula which is Y=3/4x -4.5
okay, so I know someone else asked for help on this and it said it was 280, but it was not correct on mine for some reason. So, someone please help.
Eric traveled to three cities on a single highway. The distance from his original location to the first city was 100 miles more than the distance from the first city to the second city. The distance from the second city to the third city was 10 miles less than the distance from the first city to the second city. If the distance from his original location to the first city and the distance from the second city to the third city were the same, what was the total distance Eric traveled?
Possible Answers: I searched too as I’m not very smart but I found one that happened to be multiple choice and this were the options. A. 120 miles
B. 200 miles C. 280 miles D. 360 miles E.400 miles
Step-by-step explanation: Personally I believe it should be 400.
There are 32 students in the school drill team performance. Each row of team members must have the same number of students. If there are at least 8 students in each row, what are all the possible arrangements?
Answer:
4 rows with 8 students in each
Step-by-step explanation:
4x8=32
A pet store has three fish tanks, each holding a different volume of water and a different number of fish.
Tank A holds 40 L and 5 fish. Tank B holds 100 L and 12 fish. Tank holds 180 L and 23 fish,
Order the tanks by volume per fish from least to greatest
For each tank just divide the number of L by the number of fish to get the volume or fish.
For tank A it is 40/5=8, for tank B it is 100/12=8.3, and for tank C it is 180/23=7.8.
If you number them least to greatest, it is (tank C, tank A, tank B)
Seed (oz)
2
3
4
Area Covered as
es
5025
2
Answer: Not enough information provided, please provide any additional instructions, answers, and text which may have been included in the question.
Step-by-step explanation:
Solve for x.
Please help quickly
Find the value of x in the equation below
13=x-18
Please help
Answer: x = 31
Step-by-step explanation: 13+18=31, so 31-18=13.
Answer:
x = 31
Step-by-step explanation:
-Get x alone
13 = x - 18
-add 18 to each side
x=31
value of 2m^2+m-5 when m=5
Answer:
50
Step-by-step explanation:
Substitute m with 5
2m^2+m-5
2(5)^2+(5)-5
then follow your order of operations
2(25)+(5)-5
50+5-5
55-5=50
What is the SUM of 592.3067 and 321.988?
Answer:
914.2947
Step-by-step explanation:
please help me on this
Kilometers and inches are some units used to measure length. What are some other units used to measure length?
I need the answer quick
Answer:
Meters, miles, feet, centimeters
Step-by-step explanation:
Write each equation in standard form. Identify A,B,and C. 2x=4y-1
Answer: 2x - 4y = -1
Step 1: Move the variable.
2x - 4y = 4y - 1 - 4y
Step 2: Remove the opposites.
2x - 4y = -1
Answer = 2x - 4y = -1
Hope this helps!
Answer:
2x - 4y = -1
Step-by-step explanation:
Ax + By + C
A = 2
B = -4
C = -1
will give you brainlyist pls help
Intro:
Hello!!! Princess Sakura here ^^
Step-by-step explanation:
The quickest way to do this is to look how much it goes down and then how much it goes left. This is called rise over run. So the line goes 2 down then left 3 to get from one perfect point to another.
So the answer is Choice D. It went down 2 so it's negative.