For the 1st one, the equations never intersect. There is only 1 case where the lines never intersect and that is when they are parallel. So the 1st one is that they are parallel. A and B are parallel when graphed.
For the 2nd one, the lines are always intersecting. This means that C and D are the same line when graphed.
Answer:
see explanation
Step-by-step explanation:
The solution of equations given graphically is at the point of intersection of the 2 lines.
No solution indicates that there is no point of intersection, thus the graph of A and B are parallel lines which never intersect.
B
Infinitely many solutions indicates that the graph of C and D lie on the same line.
- The output of a function is 3 less than 6 times the
input. Find the input when the output is 15.
Answer:
(15+3)/6= the input
18/6= 3
since the output is three less than 6x the input, you need to add three. and if the output is 6 times the input after adding three, you have to divide by 6 to find out what the input originally was. you can check it by doing:
6*3= 18
and 18-3= 15 so it checks out.
Step-by-step explanation:
I hope this helps :)
What is the result of multiplying the second equation by 2 and adding to the first equation?
x+3y=10
2x−y=−1
-------------
A. 5x+3y=6
B. 5x+y=8
C. 3x+2y=9
D. 3x−5y=−12
Answer:
5x + y = 8
Step-by-step explanation:
Given the equations:
x+3y=10 ____ (1)
2x−y=−1 ____ (2)
Multiply (2) by 2
2(2x - y = - 1) = 4x - 2y = - 2
4x - 2y = - 2 - - - (3)
Add (1) and (3)
4x - 2y = - 2
x + 3y = 10
___________
5x + y = 8
_________
Answer:
5x + 3y = 6
Step-by-step explanation:
please help 50 points and brainliest
Answer:
6 meters per seccond
Step-by-step explanation:
pls help this is my last attempt to get it right before I fail.
Answer Choices:
A)The scale factor is 0.9
B)The scale factor is 2.1
C)The scale factor is 2.5y
D)The scale factor is 0.4
Line M is represented by the equation -2/3+8. Line W is perpendicular and passes through the point (4,3)
Answer:
y= -3/2x+9
Step-by-step explanation:
Well we have to know that to find a line perpendicular to a given line, you have to have opposite slopes. So that makes the equation begin as y=-3/2x because it's opposite of y=2/3x. Then we have to make sure it goes through the point (4,3). To do that, I tweaked the numbers in my graphing calculator and it worked with 9! So the equation is y= -3/2x+9
Which is the smallest?
(a) -1,
(b) -1/2,
(c) 0,
(d) 3.
Answer:
a this is because bigger negative numbers are smaller
What’s the answer I’ll give brainliest(you gotta tell me how to give brainliest too)
Answer:
Man o dont know the answer but just give me brainalis
Step-by-step explanation:
wen you see my answer clike the hart buton and the buton that says make Brinalist
Answer:
B. [tex]k(x)=(-x+3)^{1/2}[/tex]
Step-by-step explanation:
When we're talking about a restricted domain, we're looking for a function that's undefined for certain values of x. A classic example is the function f(x) = 1/x. Division by 0 is undefined, so this restricts our domain to all real numbers except 0.
A key feature of our problem is in the exponents - are there any exponents that would limit the possible values of x? Let's strip away the rest of the details and just look at those powers for each option:
For A, let's look at the function [tex]f(x) = x^{1/5}[/tex]. Remember that fractional exponents are the same as roots, so we could also say [tex]f(x)=\sqrt[5]{x}[/tex]. Any odd root like this can take any value for x, positive and negative. This has to do with the fact that any odd power of a negative is always negative. So no restrictions on A.
For B, just looking at the exponent, let's see if there are restrictions on the function [tex]k(x) = x^{1/2}[/tex]. Again, we can rewrite the right side as a root: [tex]k(x) = \sqrt{x}[/tex].
Unline f(x), k(x) is restricted. The square root of a negative number has no real solutions, so k(x) comes with the restriction that x ≥ 0. We could look at C and D, but we've already found our solution at this point, so I'll stop here!
Help me if you are good at math!
Solve any evens for 20 points apiece
Find the slope, or rate of change, from the table. *
Answer:Answer:Answer:the change from the table is -q
Step-by-step explanation: 3x-5 = -15
and the other change Is the -21
Use the Pythagorean Theorem to find the missing length in the right triangle.
Answer:
c=10
36+64=c square
100=c square
10=c
you can also use the pythagorean triple 6,8,10 to figure it out faster.
Step-by-step explanation:
thank me later for the solution hope it works
Seventy-nine less than five times a number is at most 241. What is the maximum value of the number?
Answer: 64
Step-by-step explanation: Hopes this help
What is the exact value of tan(67.5°) ?
Answer:
[tex]\sqrt\frac{2+\sqrt{2}}{2-\sqrt{2}}[/tex]
Step-by-step explanation:
correct on edge2020
The required exact value of tan(67.5°) is -2 + √(2).
What are trig ratios?If you know the lengths of two sides of a right triangle, you can use trigonometric ratios to calculate the measures of one (or both) of the acute angles.
Here,
The exact value of tan(67.5°) can be found using the half-angle identity for the tangent, which states that:
tan(x/2) = (1 - cos(x)) / sin(x)
We can use this identity with x = 135 degrees since 67.5 degrees is half of 135 degrees. So:
tan(67.5°) = tan(135°/2) = (1 - cos(135°)) / sin(135°)
We can then use the following exact values:
cos(135°) = -√(2)/2
sin(135°) = -√(2)/2
Substituting these values, we get:
tan(67.5°) = (1 + √(2)/2) / (-√(2)/2)
Rationalizing the denominator, we get:
tan(67.5°) = -2 + √(2)
Therefore, the exact value of tan(67.5°) is -2 + √(2).
Learn more about trig ratios here:
https://brainly.com/question/14977354
#SPJ6
I need help please im struggling on this
Answer:
3^2+4^2=7^2
√7^2
7
Answer: c= 5
Given a=4 and b=3,
c = 5
Step-by-step explanation: Given a=4 and b=3,
c = 5
∠α = 53.13° = 53°7'48" = 0.9273 rad
∠β = 36.87° = 36°52'12" = 0.6435 rad
area = 6
perimeter = 12
h =
12
5
= 2.4
Can someone please help me?
Answer:
The correct answer is d.
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
m divided by 5 is the same as m/5
Sam is making a project out of wood. He needs a board that is 2 3/4 feet long. He has a board that is 3 1/8 feet long. How much does Sam need to cut from the board for the project?
Answer:
He needs to cut 3/8
Convert: needs 22/8 and has 25/8
How many moles are in 2.75 x 10^23 atoms of Sulfur ? please show steps
Answer:
2.75x(1023)
=2.75*x*1e+23
=2.7499999999999997e+23*x
=2.7499999999999997e+23x
Step-by-step explanation: Hope this help
Which set of numbers could not represent the lengths of the
sides of a right triangle?
A(1,3,square root of 10)
B {2,3,4}
C {3,4,5)
D {8, 15, 17)
if g(X) = 2x-1 , then what is g(3)?
Ben is shopping for tires for his car. After looking at several stores, he decides to purchase his tires from All About Tires. The cost of their tires is shown in the table below.
Study the table below...
All About Tires...
Number of Tires... X...
Total Cost... Y...
... 2, $62...
... 3, $93...
... 7, $217...
... 9, $279....
Based on the information in the table, how much will Ben pay for 4 tires?
Answer:
124
Step-by-step explanation:
63 +31 is 93 +31 is 124
Answer:
Answer:
124
Step-by-step explanation:
63 +31 is 93 +31 is 124
If a parabola is u-shaped, then the a value of the quadratic function is...
Answer:
x^2
Step-by-step explanation:
ax^2 + bx + c is quadratic standard form
Find the length of the third side to the nearest tenth.
HELP I'LL GIVE BRAINLIEST!!!!!!!!!!!!!!
Find the value of x and y
Answer:
x=6, y=128
Step-by-step explanation:
set 5x+16 = 7x+4
-2x=-12
x=6
plug x into equation= 46
180-46=134
y+6=134
y=128
There are 50 read beans and 50 white beans in a bag . The first bean selected is red . The red bean is returned to the bag . What are the chances of the second bean selected being red
Answer:
50% as there is 100 beans all together
Determine the length of x in the triangle. Give your answer to two decimal places. You may use the Desmos scientific calculator:
Answer:
35.09
Step-by-step explanation:
From the question given above, the following data were:
Opposite = 12
Hypothenus = X
Angle θ = 20 °
The value of x can be obtained by using sine ratio as illustrated below:
Sine θ = Opposite / Hypothenus
Sine 20 = 12 / X
0.342 = 12 / X
Cross multiply
0.342 × X = 12
Divide both side by 0.342
X = 12 / 0.342
X = 35.09
Thus, the value of X is 35.09
Solve the equation x^2-6x-1=0 to the nearest tenth.
9514 1404 393
Answer:
x = {-0.2, 6.2}
Step-by-step explanation:
The values that go into the quadratic formula are a = 1, b = -6, c = -1.
[tex]x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}=\dfrac{-(-6)\pm\sqrt{(-6)^2-4(1)(-1)}}{2(1)}\\\\=\dfrac{6\pm\sqrt{40}}{2}=3\pm\sqrt{10}\\\\\boxed{x\in\{-0.2,\ 6.2\}}[/tex]
Write 30x3+5x in factored form.
ANSWER ASAP!!!!!! PLEASE
What is the value of x in the equation StartFraction 4 Over 7 EndFraction (StartFraction 21 Over 8 EndFraction x + one-half) = negative 2 (StartFraction 1 Over 7 EndFraction minus StartFraction 5 Over 28 EndFraction x)? Write your solution in decimal form.
Answer:
D
Step-by-step explanation:
Answer:
the answer to your question is D
Step-by-step explanation:
hope this helps
5. Tony wants to buy a ticket for $15.75. He
has $9.25. How much must he earn to
buy the ticket?
Answer:
$6.50
Step-by-step explanation:
You just have to subtract the 2 so you get $6.50 which is how much he needs to earn
Answer:
$6.5
Step-by-step explanation:
all you have to do is find the difference between the two values
15.75-9.25=6.5
I am new to this whole thing well website and i'm doing six grade math.