Answer:
x = -3/2 or x = 1
Step-by-step explanation:
PLZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ HELP NEED ANSWER NOW!!!!!!!!!!!!!!!!!
solve each linear system by GRAPHING. CHECK YOUR ANSWER
2.) x - y = 6
2x = 12 + 2y
3.)1/2 x - y = 4
2y = x + 6
Answer:
2.) Infinitely many solutions
3.) No solutions
Step-by-step explanation:
To solve systems of equations graphically, you need to find where they intersect
2.) First put each equation in the form y=mx+b
x-y=6 -> y= x-6
2x=12+2y -> y= x-6
Then, graph each line
Since we have the same equation, the lines are on top of each other so there are infinitely many solutions as they intersect everywhere.
To check, plug a point in from the graph into both equations and you should get 0=0
3.) First put each equation in the form y=mx+b
1/2x-y=4 -> y=1/2x-4
2y=x+6 -> y=1/2x+3
Then, graph each line
Since the lines have the same slope but a different y intercept, the lines are parallel. Therefore, there are no solutions as they do not intersect.
To check your answer, you would one equation as the y in the other equation.
2(1/2x-4)=x+6, then solve for x
Then plug that x into the original equations, and you'll see they are not equal. Hope that helps!
Subtract - 7x2 + 1 from – 2x2 - 4x.
Answer:
11-4x
Step-by-step explanation:
simplify the following expression by combining like terms. select the most simplified Expression 2 W + 5 W - 6 + 4w
Answer:
11w-6
Step-by-step explanation
2w+5w-6+4w=7w+4w-6=11w-6
Which of the triangles are right triangles?
Step-by-step explanation:
1 is a right triangle I know this because a right triangle is a triangle which one of the angles is a 90 degree angle
Answer:
Triangles 1,2,3, and 4 are all right triangles
HELP ME PLEASEEEEEEEEE
Kristine wants to do hardwood flooring for her room. A floor plan of the room (in feet) is shown. How much hardwood
flooring does she need?
8
6
8
2
6
2
12
Оа
Ob
Ос
Od
144 ft?
112 ft?
116 ft?
60 ft
Answer:
116 c
Step-by-step explanation:
Answer:
116 ft²
Step-by-step explanation:
8x8=64
12x2=24
2x6=12
4x4=16
64+24+12+16=116
6x4? multiplication answer
Answer:
24 ;)
Step-by-step explanation:
have a great day!
yes or no?? please helppp!!!
Answer:
I think No
Step-by-step explanation:
FIND GE (NEED ANSWER FAST!!!)
Answer:
GE = 14
Step-by-step explanation:
3x + 5 = 6x - 4
x = 3
Plug it in.
3 (3) + 5 = 14 = GD
6 (3) - 4 = 14 = GF
With that information, you know all the blue lines are the same.
GE = 14
You walk back and forth to school every day. The school is 1.25 km from your home. What is the distance you walk, in meters, every day? (1km =1000m)
PLEASE HELP <3
Answer: 1250
Step-by-step explanation:
0.25x1000=250
+ 1km/1000 meters
1000+250=1250
Answer:
2500m
Step-by-step explanation:
1.25km is 1250m. 1250 multipled by 2 is 2500m.
calculate the value of (-18) (-3)
Answer:
54
Step-by-step explanation:
You do -18 times -3 which is equal to 54. It is positive because in multiplication and division if you multiply a negative times a negative or divide a negative divided by a negative it will equal a positive.
Hope this helps!
Find the geometric mean between 4 and 20.
Answer:
4[tex]\sqrt{5}[/tex]
Step-by-step explanation:
Geometric mean is when you multiply the two numbers 4 and 20 and then take the square root of the product.
So 4 x 20 = 80, and the [tex]\sqrt{80}[/tex] = 4[tex]\sqrt{5}[/tex]
However-- that's if you meant finding the geometric mean of 4 and 20 when you said "between"
What is the value of x?
Answer:
X= 120
Step-by-step explanation:
Which graph shows a function that is increasing at a constant rate?
The graph showing a function increasing at a constant rate is graph B.
How to determine a increasing or decreasing function in an interval?In order to check the rate of rise of a function in an interval find the value of its derivative at all the points of that interval. If the values of derivatives are increasing then the function is increasing else it is decreasing.
The graphs A and B are given in the problem can be analysed one by one as follows,
Graph A,
In the interval [-∞,0], the slope of the function is decreasing.
And, in the interval [0,∞], the slope is increasing.
Thus, it is not increasing at a constant rate.
Graph B,
The function has the same slope in both the intervals [-∞,0] and [0,∞], which is positive.
It implies that the function is increasing at a constant rate.
Hence, the function shown in graph B is is increasing at a constant rate.
To know more about increasing function click on,
https://brainly.com/question/21753201
#SPJ2
How does the graph of g(x) = 5x – 3 compare to the graph of f(x) = 5*?
Answer:
the graph is shifted down 3 units
Step-by-step explanation:
5x-3
meaning the original graph of 5x going down three units
Answer:
The graph is 3 units down
Step-by-step explanation:
The equation is 5x-3 meaning 3 units down
which table represents a function?
Answer:
you didn't post the tables
.Abby, Neil and Dylan share a sum of money in the ratio 2:4:5 Neil receives £60 Work out how much money Dylan receives.
Answer:
Dylan should receive £75
Step-by-step explanation:
We know that
Abby, Neil, and Dylan share money in the ratios 2:4:5
This means that for every £2 that Abby has, Neil has £4, and Dylan has £5.
From this, we also know that for every £4 that Neil has, Dylan has £5.
Now we know that Neil receives £60
For each group of £4, Dylan will have £5.
Then we need to count how many times £4 is on £60, this is equal to:
£60/£4 = 15
And for each one of these, Dylan should receive £5, this is:
15*£5 = £75
Question: c > 2.5; c = 3
Answer:
(1+x)
n
=
n
C
0
+
n
C
1
x+
n
C
2
x
2
+
n
C
3
x
3
+.....
n(1+x)
n−1
=
n
C
1
+2
n
C
2
x+3
n
C
3
x
2
+....
Put x=5
n(1+5)
n−1
=C
1
+2.5C
2
+3.5
2
C
3
+....
=n6
n−1
.
54 POINTS: PLS HELP ASAP !!
Solve the following system of equations using the substitution method.
6x + 3y = 15
y = 1 - x
A. (3,-4)
B. (-3,4)
C. (4,-3)
D. (-4,3)
Answer:6x+3-3x
6x-3x= 3x
3x+3=15
-3. -3
3x=12
3. 3
X=4
Step-by-step explanation:
i need help with geometry
Answer:
x = 119, y = 55
Answer:
x = 119°
y = 55°
Step-by-step explanation:
y + 125 = 180 {linear pair}
y = 180 - 125
y = 55°
Sum of all the angles of quadrilateral = 360
x + 55 + 72 +114 = 360
x + 241 = 360
x = 360 - 241
x = 119°
I need some help plz
Answer:
98
Step-by-step explanation:
6(3) + 10(8) = 18 + 80 = 98
Answer:
98
Step-by-step explanation:
plug x and y in
Which equation is equivalent to 15 +80 ?
Answer:
is a lot of them
Step-by-step explanation:
94+1, 95+0, 79+16
Answer: 5(3+16)
Step-by-step explanation:
5x(3+16) = (3+16= 19) = 5 x 19 = 95 which is equivalent to 15 + 80 = 95
brainliest plz
solve this plz????? thx
Answer:
AOD i think
Step-by-step explanation:
Answer:
angle aob
Step-by-step explanation:
Stephen and Lauren bought a home to flip
for a profit. After budgeting a total of
$23,150 for improvements, they started by
spending $10,350 on subbing out some of
the work. They would like to replace all
thirty-two of the windows in the home.
What is the maxium amount they can
afford to spend on each window?
Answer:
400 dollars
Step-by-step explanation:
The slope below the line is -1/7. Write a point-slope equation of the line using the coordinates on the labeled point.
Answer: y – 3 = –1/7(x – 3)
are the ratios 1:2 and 9:18 equivalent A.Yes. B.No
please answer, and i will mark you as BRAINLIEST
John's grades go up as he puts in more hours of study time. Which variable is the independent variable in this problem? *
A. His grades
B. The hours he studies
Answer:
i think its b
Step-by-step explanation:
i think its b because his grades are the variable that keeps changing
Which one shows a way to factor 36c - 24? 3(10c - 8)
a. 6(30c - 24)
b. 36(c - 24)
c. 6(6c - 4)
d. 12(3c - 1/2)
Janet correctly answers 50 questions on her science test. There are 80
questions on the test. Enter the percent of the questions Janet did NOT
answer correctly
Answer:
30/80
3/8x100
37.5
Step-by-step explanation:
The number of seeds found in a sample of 7 different oranges were: 3, 3, 4, 5, 7, 8, and 12. What is the range of the number of seeds in the sample of oranges?
A:5
B:6
C:7
D:9
PLz help me i need this answer
Answer:
9
Step-by-step explanation:
Range is Biggest Number - Smallest Number.
12 is the biggest number and 3 is the smallest number.
So, 12 - 3 = 9
Answer:
9
Step-by-step explanation:
becauses 12-3=9
hope it helps
LOL so yea this doesn’t really make sense to me so whoever can help I’ll give you brainliest or whatever
Answer:
it's a linear problem
Step-by-step explanation:
0=1
1=2
2=3
3=4
4=5
5=6
6=7
7=8
8=9
9=10