Solve each system by elimination: -7x-6y=4 -3x+2y=20
Answer:
Step-by-step explanation:
-7x - 6y = 4
-9x + 6y = 60
-16x = 64
x = -4
-3(-4)+2y=20
12+2y=20
2y=8
y =4
(-4,4)
The slope of the line in Problem 3 was (-2, -3) to write an equation of the line in point-slope form.
Answer:
solve this example and then you will know how to solve your question
Step-by-step explanation:
Example of one**-
Explanation:The equation of a line in
point-slope form is.
where m represents the slope and (x1,y1)
a point on the line
here m=5 and
y+1=5(x+2)
(x1,y1)=(−2,−1)⇒
y−(−1)=5(x−)(−2)⇒y+1=5(x+2)
is equation in point-slope form
distributing and collecting like terms gives another version of the equation.
y+1=5x+10⇒y=5x-9←
in slope-intercept form
Two students are solving the same problem: At a hardware store, they can cut a length of rope off of a big roll, so you can buy any length you like. The cost for 6 feet of rope is $7.50. How much would you pay for 50 feet of rope, at this rate?
Answer: 62.5
Step-by-step explanation:
if you multiply 1.25 x 50 = 62.5
(in the problem you may have been given a chart if not look below for the problem also i’m sorry if it doesn’t make sense lol)
[6 above 1 under 50] - [1.75 under 1.25]
[using 1.25 x 50 you get your answer 62.5)
simplify 1+3(4n+6) please help I hate this
Answer: 19 + 12n
Step-by-step explanation: 1 + 3(4n + 6)
1 + 12n + 18
19 + 12 n
Use one or more transformations to transform the pre-image (purple) onto the image (white).
Translate Rotate
* Reflect
(You cant tpuch the grey lines )
Answer: This is a translation of 12 units to the right.
translation written (x,y) -> (x+12,y+0)
Step-by-step explanation:
Pick a point on the pre-image, and count how many squares it has to move to end up at the corresponding point in the image.
Add that value to the coordinate x for horizontal movement, here +12.
Add to the coordinate y for vertical movement. here 0.
F(x) = 3x-1. g(x)=x2+1. What is (f+g)(x)?
Answer:
x^2 + 3x
Step-by-step explanation:
Just add like terms:
(f + g)(x) = 3x - 1 + x^2 + 1. Notice that you must use " ^ " or equivalent to denote exponentiation.
(f + g)(x) = 3x - 1 + x^2 + 1 = x^2 + 3x + 1 - 1
(f + g)(x) = 3x - 1 + x^2 + 1 = x^2 + 3x
Will mark you brainliest!!!!
It’s basically asking to write the missing numbers by looking for the pattern to describe how the tenth and hundredths change
Step-by-step explanation:
i not understand your questions
A basketball player is 90 inches tall. A model is created of the player using a scale factor of 1:20. How tall is the model in inches?
Answer:
4.5
Step-by-step explanation:
Answer:
The answer is 1:16
3х – 10 y = 14 3х - 9y = 15
Answer:
{x,y}={8,1}Step-by-step explanation: i just looked it up
What is the value of x? Teach me
Sebastian a store manager earns 125.20 for eight hours of work How much does he earn per hour A $0.07 B $1,001.60 C $14.65 D$15.65
Answer
The correct answer is D. $ 15.65
Step-by-step explanation:
Which Expression has a value of 2/3
Answer:
(8 + 24) ÷ (12 x 4)
Step-by-step explanation:
What is the y-intercept of the line shown? (4 points) A. 3/4 B.2 C. 3 D.4a
Answer:
D.4
Step-by-step explanation:
The y-intercept is where the line crosses the y-axis. This line crosses the y-axis at 4, or the point (0,4) so the y-intercept would be 4.
What is the value of the function at x=−2?
y=−2
y = 0
y = 2
y = 3
GRAPH ATTACHED
Answer:
y = 2
Step-by-step explanation:
When we have graph is given also one value from x and y is given then for finding the other value, We simply see the line where x = -2 is graphed and then we will see what is the value of y there.
i need this this fast!! please
Answer:
last one
Step-by-step explanation:
Your family needs a set of 4 tires. Which of the following deals would you prefer? Complete the explanation below to tell which deal(s) would be better.
(I) Buy 2, get two free (II) 45% off (III) 1/2off
The best deal would be either .
Either case would result in a discount of %,
which is better than the other alternative of %.
PLZ ANSWER ASAP!
Answer
Buy 2, get 2 free and/or 1/2 off
Step-by-step explanation:
OK, lets say that the tire price was 15. (l)= 15+15=30 (ll)= 15/45%= 33.33x4=133.32 (lll)= 15/2=7.5 7.5x4=30
Write an equation in slope-intercept form for the line that passes through (4, 7) and is perpendicular to the y-axis.
The equation in slope-intercept form for the line that passes through (4, 7) and is perpendicular to the y-axis is y=0x+7 or y=7.
What is the equation of a line?A line is a one-dimensional shape that is straight, has no thickness, and extends in both directions indefinitely. The equation of the line is given by,
y =mx + c
where,
x is the coordinate of the x-axis,
y is the coordinate of the y-axis,
m is the slope of the line, and
c is the y-intercept.
As it is needed that the line must be perpendicular to the y-axis, therefore, the slope of the line will be 0 and the value of y will be 0. Also, it is given that the line passes through (4, 7). Therefore, the equation in slope-intercept form for the line is,
y = mx + c
7 = 0(4) + c
c = 7
Hence, the equation in slope-intercept form for the line that passes through (4, 7) and is perpendicular to the y-axis is y=0x+7 or y=7.
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How do I solve permutations and combinations?
Answer:
by formulas . you can solve permutations and combinations by formulas .
In the photo which one?
Answer:
The variable terms on each side WILL NOT BE IDENTICAL.
Step-by-step explanation:
Can someone please help me solve this -6(r+3g-t)
Answer:
-6r-18g+6t
Step-by-step explanation:
Answer:
18g−6r+6t
PLEASE GIVE BRAINLIEST I EVEN EXPLAINED IT
Step-by-step explanation:
−6(r+3g−t)
=(−6)(r+3g+−t)
=(−6)(r)+(−6)(3g)+(−6)(−t)
=−6r−18g+6t
=−18g−6r+6t
Line e passes through points (7, 8) and (4, 10) Line f is parallel to line e. What is the slope of line f?
==================================================
Explanation:
Use the slope formula to find the slope of line E
m = (y2-y1)/(x2-x1)
m = (10-8)/(4-7)
m = 2/(-3)
m = -2/3
The slope of line E is -2/3
The slope of line F is also -2/3 since parallel lines have equal slopes but different y intercepts.
1/8 to decimal and
10/11 to decimal
Answer:
Step-by-step explanation:
1
Answer: 1 divided by 8= 0.125
10 divided by 11= 0.90^
Step-by-step explanation:
Which relation is a function?
Answer:
bottom right graph
Step-by-step explanation:
Please help! A line has a slope of -2 and a y-intercept of -3. Graph the line using the slope and y-intercept. Which of the following points lie on this same line? Check all that apply.
Answer:
2. -1.5, 0
3. -6, 9
5. 3, -9
Step-by-step explanation:
Given parameters:
Slope = -2
y - intercept = -3
Unknown:
The point that lies on the line = ?
Solution:
To do the equation of the line,
y = mx + c
y and x are the coordinates
m is the slope
c is the y -intercept
Input the parameters:
y= -2x -3
The points that lie on the line will conform with the equation:
y + 2x = -3
1. -2, 0
y = 0 and x = -2
0 + (-2)2 = -4
2. -1.5, 0
y = 0 and x = -1.5
0 + 2(-1.5) = -3
3. -6, 9
y = 9, x = -6
9 + 2(-6) = 9 - 12 = -3
4. 2, -3
y = -3 and x = 2
-3 + 2(2) = -3 + 4 = 1
5. 3, -9
y = -9, x = 3
-9 + 2(3) = -9 + 6 = -3
6. -4, 4
y = 4 , x - 4
4 + 2(-4) = 4 - 8 = -4
The boldened coordinates line on the same line.
Which of the following is a correct cosine ratio for the figure?
Answer:
C is actually the correct answer. Cos formula is adjacent/hypotenuse!
Step-by-step explanation:
The cosine ratio for the given figure is cos θ = 12/13. Therefore, option C is the correct answer.
We need to find which is the correct cosine ratio for the given figure.
What is a cosine ratio?The cosine of an angle is the ratio of the length of the side adjacent to the angle divided by the length of the hypotenuse of the triangle.
That is cos θ=Adjacent/Hypotenuse.
From the given figure, cos θ = 12/13
The cosine ratio for the given figure is cos θ = 12/13. Therefore, option C is the correct answer.
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Which of the following is the solution to the equation t/3 = -9
Passes through (-2, 6) with a slope of -1/4.
(4+5)(4-51) =
please help i don’t feel like doing math rn
Answer:
423
Step-by-step explanation:
Answer:
-423
Step-by-step explanation:
Hope This Helps!
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Math help please! - ( 4/5 )
7.6x-1 is the answer
Which of the following statements is not true about the relationship
Answer:
C
Step-by-step explanation: