Answer:
3 x − y = − 13
Step-by-step explanation:
Any equation that relates the first power of x to the first power of y produces a straight line on an x-y graph. The standard form of such an equation is Ax + By + C = 0 or Ax + By = C. When you rearrange this equation to get y by itself on the left side, it takes the form y = mx +b. This is called slope intercept form because m is equal to the slope of the line, and b is the value of y when x = 0, which makes it the y-intercept. Converting from slope intercept form to standard form takes little more than basic arithmetic.
TLDR:
To convert from slope intercept form y = mx + b to standard form Ax + By + C = 0, let m = A/B, collect all terms on the left side of the equation and multiply by the denominator B to get rid of the fraction.
Answer:
3x - y = -13
Step-by-step explanation:
y = mx + b
(This is the slope intercept form)
We want to change it to standard form, which is:
Ax + By = C
We want to rearrange as many of the numbers as we can, without actually changing the problem!
Ax = 3x
By = y
C = 13
So we must move the numbers from one side to another.
Whatever you do to one side, you do to the other.
y = 3x + 13
-3x + y = -3x - y
--------------------
-3x + y = 13
Since we can't have our "Ax" as a negative multiply everything by -1
-1[-3x + y = 13]
3x - y = -13
That is your answer.
yes i agree with all of you
Answer:
like wise. I too agree with your contribution
I really don't understand this
Answer:
-1
Step-by-step explanation:
The mean is the sum of all values divided by the amount of values.
We take the sum of all the numbers:
-3 + -8 + 12 + -15 + 9
-11 + 12 + -15 + 9
1 + -15 + 9
10 + -15
-5
We then divide the sum by how many number we have (we are given 5 numbers):
-5/5 = -1
Therefore, our mean is equal to -1.
Answer:
-1
Step-by-step explanation:
-3 + -8 + 12 + -15 + 9 = -5 Now divide it by the amount of numbers given. -5 / 5 = -1
I NEED HELP FAST PLZ
Answer:
A. 2x^2+15
Step-by-step explanation:
Is The Correct Answer!
A bee flies at 12 feet per second directly to a flower bed from its hive. The bee stays at the flower bed for 13 minutes then flies directly back to the hive at 8 feet per second. It is always away from the hive for a total of 15 minutes. What equation can you use to find the distance of the flower bed to the hive?
Answer:
Kindly check explanation
Step-by-step explanation:
Given that :
Rate of flight = 12 feets per second ; from hive to flower bed
Minutes stayed at flower bed = 13 minutes
Rate of flight = 8 feets per second ; from flower bed to hive
It is always away from the hive for a total of 15 minutes
What equation can you use to find the distance of the flower bed to the hive?
Distance = speed * time
Time = distance / speed
Let distance from flowerbed to hive = d
Time from hive to flower bed = d/12
Time from flower bed to hive = d / 8
Hence, total time taken;
d/12 + 13 + d/8 = 15
Converting minutes to seconds
d/12+ 13*60 + d/8 = 15*60
d/12 + 780 + d/8 = 900
Take the L. C. M
(2d + 18720 + 3d) / 24 = 900
5d + 18720 = 21600
We can also solve for d
5d = 21600 - 18720
5d = 2880
d = 576 feets
What is the length of BC?
9 units
11 units
15 units
16 units
Answer:
x = 15
Step-by-step explanation:
I used the pythagorean theorem on BAC triangle
If you have any questions about the way I solved it, don't hesitate to ask me in the comments below ;)
The length of BC is 15 units.
In the right triangle ABC.
we have AC = 8 units and AB = 17 units.
We need to find the length of BC using the Pythagorean theorem.
What is the Pythagorean theorem?It states that in a right-angled triangle the square of the hypotenuse is equal to the sum of the squares of the other two sides.
In the given right-angle triangle ABC.
We have,
AB = hypotenuse and the other two sides are AC and BC.
Applying the Pythagorean theorem.
We get,
[tex]AB^{2} = AC^2 +BC^2[/tex]
Now substitute AC = 8 and AB = 17.
[tex]17^2=8^2+BC^2\\289=64+BC^2\\BC^2=289-64\\BC^2=225\\BC=\sqrt{225}\\ BC=15 ~units.[/tex]
Thus, we have the length of BC as 15 units.
Learn more about finding length in a right-angle triangle here:
https://brainly.com/question/13515866
#SPJ2
Rewrite the expression single power
using only positive exponent.
please help me thanks!!!
Ashley is going to rent a truck for one day. There are two companies she can choose from, and they have the following prices.
Company A charges $77 and allows unlimited mileage.
Company B has an initial fee of $65 and charges an additional $0.80 for every mile driven.
For what mileages will Company A charge less than Company B?
Use m for the number of miles driven, and solve your inequality for m.
Answer:
Anything above 15 miles, so x>15
Step-by-step explanation:
When you solve this by using an equation, you would get 77=65+0.80m (0.80 m because slope is 0.80 and m is mileage you multiply by). You would subtract 64 from both sides, so 12=0.80m and then you divide 0.80 by 12 to get m by itself to get 15. 15 miles is when both companies cost the same, so anything above 15.
Please help guys, I’d really appreciate it... using FOIL, solve:
(x + y + 3)(x + y - 4)
Answer:
X^2+xy-x+y^2-y-12
Step-by-step explanation:
I think i did it right but if not comment back and i'll try again.
Find the difference:
(9.31 x 105) – (4.2 x 105)
Answer:
536.55x
Step-by-step explanation:
I hope this helps :)
Jadah bikes 45 miles in 3 hours. At this rate, how far does she go in 8 hours?
Answer:
120 miles
Step-by-step explanation:
45 divided by 3 equals to 15 and 15 times 8 equals 120.
45 / 3 = 15
15 x 8 = 120
5) Rafael's goal is to average
20 points per game in his
basketball league. He has
scored 24, 18, 25, and 16
points in his first four games.
How many points will he
need to score in game 5 to
end up with a mean score of
exactly 20?
Scientific notation for
78 million
Answer:
78 million in scientific notation is 7.8 x .
Step-by-step explanation:
Which of the following shows finding the sum of 4 and -8?
Answer:
-4
Step-by-step explanation:
count by a number line and you will see
Answer:
the answer is -4
Step-by-step explanation:
First you have to determine which sign is bigger. The number 8 is greater than 4 so we have to use the negative sign. now we can subtract or add. eight minus or plus four is four or twelve. so if we add or subtract the negative sign and the number four together we will get negative four or twelve. This is how you get the sum for negative four and eight. Hope this helps!
Help pleaseeee. I’m a little dumb
Answer:
18
Step-by-step explanation:
PEMDAS (order of operation)
4 dived by 2 is 2
2times 5 is 10
10+8 is 18
whats 45 x 7^5 + 809 -12
Answer:
757112 or 7.57112 x 10^5
Step-by-step explanation:
45 x 7^5 + 809 - 12
45 x 16807 + 809 - 12
756315 + 809 - 12
757124 - 12
757112 or 7.57112 x 10^5
)
1.What is the additive of 3/8
Answer:
3
Step-by-step explanation:
3 + (-8) - (-8)
= 3 - 8 + 8
= 3
Plss help i dont understand
Decide which of the two points lies on the graph of the line
2x+y=10
A.(4,3)
B.(-4,18)
Answer:
A
Step-by-step explanation:
when you substitute 4 in x and 3 in y, your result are 11 no 10
find the value of x root (4/7)^2x-1=16/49
Answer:
[tex]\frac{3}{2}[/tex]
Step-by-step explanation:
Given expression:
[tex](\frac{4}{7}) ^{2x - 1}[/tex] = [tex]\frac{16}{49}[/tex]
Solve for x;
Solution:
16 = 4²
49 = 7²
So;
[tex](\frac{4}{7}) ^{2x - 1}[/tex] = [tex]\frac{4^{2} }{7^{2} }[/tex]
[tex](\frac{4}{7}) ^{2x - 1}[/tex] = [tex](\frac{4}{7} )^{2}[/tex]
Now;
2x - 1 = 2
2x = 3
x = [tex]\frac{3}{2}[/tex]
Word problem for 3x(5+8)
Answer:
The answer is 39x.
Step-by-step explanation:
Answer:
I believe the word form of the equation would be Three X times five plus eight.
Step-by-step explanation:
A car increases, then decreases, its speed. Which table could represent the speed of the car? A 2-column table with 5 rows. The first column is labeled time (minutes) with entries 5, 6, 7, 8, 9. The second column is labeled speed (miles per hour) with entries 45, 43, 41, 42, 43. A 2-column table with 5 rows. The first column is labeled time (minutes) with entries 5, 6, 7, 8, 9. The second column is labeled speed (miles per hour) with entries 45, 47, 49, 48, 47. A 2-column table with 5 rows. The first column is labeled time (minutes) with entries 5, 6, 7, 8, 9. The second column is labeled speed (miles per hour) with entries 45, 45, 45, 43, 41. A 2-column table with 5 rows. The first column is labeled time (minutes) with entries 5, 6, 7, 8, 9. The second column is labeled speed (miles per hour) with entries 45, 43, 41, 41, 41.
Answer:
The speed increases (45—>47—>49) then decreases (48—>47) over time.
Step-by-step explanation:
lindsay has 7/8 yards of fabric. to make a purse, she needs 2/3 of the fabric how much fabric did she use?
Answer:
Lindsay used 16/24 yards of fabric and has 5/24 yards left over
Step-by-step explanation:
7/8 - 2/3 = ?
Since both fractions have unlike denominators, we are gonna have to rewrite the fractions so we can subtract. We are gonna find the least common denominators, to be able to subtract.
(7/8 x 3/3) - (2/3 x 8/8) = ?
Complete the multiplication and the equation becomes :
21/24 (7/8) - 16/24 (2/3) = 5/24
(-10,5) ( 2, -3) determine the slope of the line
Answer:
-2/3
Step-by-step explanation:
-3 - 5 = -8
2 - (-10) = 12
-8/12 = -2/3
Richard is planning a banquet for the wrestling
team. A restaurant charges $22 per person plus a
one-time fee for use of a private room. It costs $405
for 15 people. The total cost, y, is a linear function of
the number of x people.
Write an equation in slope-intercept form for this function?
Evaluate. x^2 ; x = -3
Answer:
-9
Step-by-step explanation:
the room is actually 18 ft wide on your floor paln you draw the room as 6 inches wide what is the scale factor for the floor plan
Answer:
1:3 (scale to actual)
Step-by-step explanation:
6:18
3:9
1:3
Brian, Kelsey, and Geoff each have a remote-controlled car. They simultaneously started their cars and drove them in a straight line away from a motion sensor. The sensor recorded the distance to each car in the table below. Distance from Sensor to Each Car Time since starting cars Distance to Brian’s car Distance to Kelsey’s car Distance to Geoff’s car 1 sec 34 cm 27 cm 27 cm 3 sec 38 cm 31 cm 33 cm 5 sec 42 cm 35 cm 39 cm 8 sec 48 cm 41 cm 48 cm Which statement is best supported by the table?
Answer:
Brian’s and Kelsey’s cars traveled at the same rate.
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
Hope this helps
Please mark as brainlist!
4x−3/2 - 5-2x/3 - 3x-4/3 = 5
Answer:
Simplify the expression.
2x-47
=6
Step-by-step explanation:
Answer:
x= -8.5
Step-by-step explanation:
combine like terms1/3x - 47/6 =5
2. Get x onone side
1/3x = -17/6
3. Multiply for x
x= -8.5
Jared wants to make a scale drawing of his bedroom. His bedroom is a rectangle with a length of 600 cm and width of 400 cm. He decided on a scale of 1 to 50. 1.Jared's bedroom door is 60 cm wide. How wide should the door be on the scale drawing? Explain how you know. 2.Jared's bed measures 4 cm by 5 cm on the scale drawing. What are the actual measurements of his bed?
Answer:
(1) 1.2 cm
(2) 200 cm by 250 cm
Step-by-step explanation:
The scaled dimention = (Actual dimension) x (scale factor) ...(i)
The given scale factor =1/50
(1) The actual width of the bedroom door= 60 cm.
So, from equation (i),
the width of the door on the scale drawing= 60 x (1/50)=1.2 cm
(2) The scaled dimension of the bed is 4 cm by 5cm.
So, the scaled width of the bed = 4cm and
the scaled length of the bed = 5cm.
So, from equation (i),
4 cm = (Actual width) x (1/50)
So, Actual width = 50 x 4 cm = 200 cm.
And, 4 cm = (Actual length) x (1/50)
So, Actual width = 50 x 5 cm = 250 cm.
=Hence, the actual measurements of his bed is 200 cm by 250 cm.
Write 0.00000000000801 in scientific notation
Answer:
10^12 times 8.01
Step-by-step explanation:
Answer: 8.01*10^12
Step-by-step explanation: