Are these two lines parallel? Why or why not?
y=5x+6 and y=6x+5
Answer:
No
Step-by-step explanation:
The slopes of the equations are unequal, meaning the lines are not parallel and will eventually intercept
The slope of a line that passes through points (5, 14) and (-4, y) is 4/9. What is the value of y?
Answer:
slope=m=4/9
(x',y')=(5,14)
(x",y")=(-4,y)
we have
m=(y"-y')/(x"-x')
4/9=(-4-5)/(y-14)
4y-56=-81
4y=-81+56
y=-25/4
Answer: y = 10
Step-by-step explanation:
The slope of a line is the rise/run, so if you want to find the slope of a line between two points, you can take the change in y between the two points and divide it by the change in x.
The change in y would be (y2 - y1), where y2 is the y position of the second point and y1 is the y position of the first.
In a similar manner, to find the change in x, we can use (x2 - x1), where x2 is the x position of the second point and x1 is the x position of the first.
Now that we have the change in x and the change in y, we can make an equation to find the slope (which is change in y / change in x):
m = (y2 - y1) / (x2 - x1)
Now we can assign the points:
Point 1 is (5, 14)
Point 2 is (-4, y)
(Note: You could flip which point is which, and it wouldn't change the final answer, I'm just assigning these so you know where the x and y values are coming from when I plug the values into the equation)
Now that we have both points, we can plug the values into the equation:
m = (y2 - y1) / (x2 - x1)
m = (y - 14) / (-4 - 5)
m = (y - 14) / (-9)
There's one piece of information we haven't used yet, which will help us solve for the value of y. What we need to use is the slope (which is given to us as 4/9).
Plugging in the value of the slope will let us get y:
m = (y - 14) / (-9)
4/9 = (y - 14) / (-9)
-4 = (y - 14)
(Note: We're multiplying both sides by -9, don't forget about the negative sign)
-4 = y - 14
y = -4 + 14
y = 10
Solve the simultaneous equations
4x + 2y = 23
3x - 2y = 5
Answer:
x = 4
Step-by-step explanation:
the explanation is given in the picture...
Round to the nearest ten thousand.
923,079
find the perimeter and area of a square whose side measures
1)3point5 (3.5)
2)1m 20cm
I hope it helps you ❤️❤️❤️❤️
Step-by-step explanation:
perimeter:3.5+3.5+20+20=47cm
Area:L×b=3.5×20=70cm
A bag contains 5 blue marbles and 6 yellow marbles. A marble is drawn and dropped back into the bag. Another marble is drawn and dropped back into the bag. What is the probability that both marbles drawn were blue?
Answer:
7/13
Step-by-step explanation:
2. If Sheila paid $1600 in interest on a year loan of $6,400 for her first car, 25 points
what was the interest rate? [R = 1 + (PT)]
Help please it’s due today
Answer:
25% annual interest rate
Step-by-step explanation:
$1600 ÷ $6400 = 0.25 aka 25%
Solve for x
And pls help
Answer:
6 is the correct answer jt tje
Tony drove for 2 hours at a constant rate of 65 mph. It started to rain, so he slowed his rate to a constant 50 mph for 3 hours. When the rain stopped, Tony finished the trip driving at a constant rate of 60 mph for the final hour. How far did Tony travel? A. 175 mi. B. 240 mi. C. 275 mi. D. 340 mi.
Answer:
B. 240mi.
Step-by-step explanation:
Answer:
D. 340
Step-by-step explanation:
Proof: I put all the constants together to equal 340.
(not much proof but believe me)
PLEASE HELP ASAP GIVING 94 POINTS
The graph shows the prices of different numbers of bushels of corn at a store in the current year. The table shows the prices of different numbers of bushels of corn at the same store in the previous year.
A graph shows Number of Bushels on x-axis and Price of Corn in dollars on y-axis. The x-axis scale is shown from 0 to 14 at increments of 2, and the y-axis scale is shown from 0 to 112 at increments of 16. A straight line joins the ordered pairs 2, 16 and 4, 32 and 6, 48 and 8, 64 and 10, 80 and 12, 96.
Previous Year
Number of Bushels
Price of Corn (dollars)
2
12
4
24
6
36
8
48
Part A: Describe in words how you can find the rate of change of a bushel of corn in the current year, and find the value. (5 points)
Part B: How many dollars more is the price of a bushel of corn in the current year than the price of a bushel of corn in the previous year? Show your work. (5 points)
Answer:
A: Every time you go up 2 bushels, you go up 16 dollars.
B: 4 dollars more. Work: 16 - 12.
Step-by-step explanation:
Answer:
ITS 2
Step-by-step explanation:
PART A: EVERY TIME YOU GO UP 2, YOU GO UP 12
PART B: 8-6=2
Walter takes 950 milligrams of an antibiotic. Every hour, his body breaks down 25% of the
drug. How much will be left after 4 hours?
Answer: 0
Step-by-step explanation: 950 x .25 = 237.5 x 4(4 hours) =950
Answer:
0
Step-by-step explanation:
I just took the test
f(x) = 7|x| awnser the question for some points
plz help me asap I just need to know the equation also it can be A) or C)
Answer:
C) Y=15X
Step-by-step explanation:
Y is the total donations and x is each free throw, every free throw, $15 is donated. For a it is saying no matter if there is a free throw or not $15 dollars is donated and b is saying the free throws depend on the total amount multiple by 15 which doesn't make sense
Answer:
the answer is not a
Step-by-step explanation:
At a competition 24 of the 40 members of a middle school band won a middle. What percentage of the of the band won a middle?
Answer:
60%
Step-by-step explanation: 24/40 equals .6. Multiply .6 by 100 to get your percentage, which equals 60%. hope this helps
I need help with these math problems, i’m not really good at math. i’m gonna be asking more questions cause i really need help with this work.
Answer:
that's an isosceles triangle
Answer:
15x+6x+4x+1+5-1=180
25x +5=180
25x=180-5
25x=175
x=175/25
x-7
Step-by-step explanation:
-5/7 divided by -1/3
Leave your answer in fractional form.
Type your answer below as a number (example: 5, 3.1, 4 1/2, or 3/2)
Step-by-step explanation:
invert the second fraction and multiply
-5/7 * -3/1 = 15/7 = 2 1/7
What is the y-intercept of the line graphed on the graph?
Answer:
y intercept is -5
Step-by-step explanation:
Answer:
it is -5 :)
Step-by-step explanation:
the y intercept is -5, you can easily see its -5 because thats where it crosses the y axis. good luck, hope this helped!!
Find the distance from (2,7) to (-10,2)
4x-6-2x+3 HELP ME xchk i think?
Answer:
2x-4x+3-6=-2x+-3Step-by-step explanation:
I THINK THAT IS THE ANSWER48 pens are packed in four boxes how many pens are packed in nine boxes
Answer:
108 pens
Step-by-step explanation:
48/4=x/9
4x=432
x=108
Answer:
Since there are 12 pens packed in each box, because there are 48 packed in 4 boxes, there will be ( 12 times 9 ) 108 pens in 9 boxes.
Evaluate the expression below when x=3 and y=-5. x^2+4xy SHOW YOUR WORK
-54
-51
69
1
Answer:6
Step-by-step explanation:
-4xy
-4(1/2)(-3)
-4(-1.5)
6
Can you explain how you go the answer too
Answer:
Step-by-step explanation:
The price of a shirt was originally $14.54, but the price has been reduced by 31%. What is the price of the shirt after the discount?
A) $10.03
B) $4.51
C) $45.54
D) $14.23
Answer:
A
Step-by-step explanation:
(31/100)×14.54
= $4.51
S.P= O.P-D.P
= (14.54-4.51)$
= $10.03
Bridget is a sales person. She sold a microwave for $70 and earned 5%commission. How much commission did Bridget earn?
it rained for 7 days during the month of april . About what percent did it rain ( hint aprill has 30 days ) round to the nearst hunderdths
Answer:
Convert fraction (ratio) 7 / 30 Answer: 23.333333333333%
Step-by-step explanation:
The diameter of a circle is 63 centimeters. Find its circumference. Use 3.14 for pi.
Answer:
197.82cm
Step-by-step explanation:
circumference= 3.14 x diameter
3.14 x 63 = 197.82
Hope this helps!
Answer:
197.92
Step-by-step explanation:
2(3.14) times the radius which is 31.5
What is the area of a circle with a circumference of 15.7 Use 3.14 for pi. C = 1 point
Tt xD and A = tr^2*
49.298
O 19.625
78.5
31.4
Answer:
c=2pir
15.7=2pir
divide by 2
7.85=pir
divide both sidse by pi
7.85/pi=r
ok so
area=pir^2
area=pi(7.85/pi)^2
area=pi(61.6225/(pi^2))
area=61.6225/pi
use 3.14 for pi
area=61.6225/3.14
area=19.625 square units
Hope it helped <3
The vertex is at (-1,-3) move it to (8,10) on the coordinate grid.
Which of the following is a solution to the inequality?
m < 25
M = 27
M = 25
M = 30
M = -91
Answer:
M= 25
step by step Explanation:i think this is correct ans if this is correct ans pls give me brainliest.
1. A large game cube with a three inch side
length is wrapped with shrink wrap. How many
square inches of shrink wrap will be used to
wrap ten game cubes?
A. 450 in2
B. 540 in2
C. 270 in2
D. 720 in

Answer:
a
Step-by-step explanation: