Answers
Answer:
(2, -6)
Step-by-step explanation:
First you want to set both equations equal to each other so you can find one of the variables.
y = x^2 + 3x -4
for second equation lets rearrange so we start with y=
x=y-4
add 4 to both sides
4+x = y or y= x+4
since both equations equal y, lets set them equal to each other
x+4 = x^2 + 3x -4
set it equal to 0 by subtracting x and 4 from both sides
x^2 + 2x -8 = 0
factor
(x+4) (x-2) = 0
so x has to be either -4 or 2. We can shortcut and say only B makes sense since x=2.
to double check, plug in x=2 in both equations
y= 2^2 + 3(2) -4 = 4+6 -4 = 6
2 = y -4; y=6
so B is correct.
please give thanks by clicking the heart button, i spent a while :)
Related Questions
(2x+1)^2 - (x+3)^2 simplify
Answers
Answer:
Step-by-step explanation:
steps are below
step 1
(2x+1)^2 - (x+3)^2 equation
step 2
4x^2+4x+1+(-x^2)+(-6x)+(-9) distribute
step 3
4x^2+4x+1+(-x^2)+(-6x)+(-9)
(4x^2+-x^2)+(4x+(-6x)+(1+(-9) combine the like terms
3x^2-2x-8
Can someone help with this ?
Answers
Answer: b=-12
Step-by-step explanation:
120/-10 = -12
-10b/-10 = b
b=-12
Answer:
b= -12
Step-by-step explanation:
you would divide -10 on both sides of the equation and get -12= b or b= -12.
3.3^(2x+1)-103^x+1=0 need solution of this question
Answers
Answer:
Concepts of mathematics Answer: x= -1.53Solve for x. I’ll give BRAINLIEST!!
Answers
Answer:
x = -7
Step-by-step explanation:
Firstly, under the rule of opposite vertical angles, you know that any angles opposite of each other in a cross section have the same degree measure.
Therefore the last remaining angle in the triangle will be 85 degrees, since it is vertically opposite of the 85 degree angle.
Next, you know that all three angles of a triangle MUST equal 180 degrees to be considered a complete triangle.
Therefore, use the equation below to solve for x:
180 = 54 + 85 + (48 + x)
x = 180 - 54 - 85 -48 = -7
What is -2 2/3 divide by -1/2
Answers
Answer:
16/3
Step-by-step explanation:
Answer:
5 1/3
Step-by-step explanation:
Convert any mixed numbers to fractions.
Then your initial equation becomes:
−8/3 ÷ −1/2
Applying the fractions formula for division,
=−8×2/3×−1
=−16/−3
Simplifying -16/-3, the answer is
=5 1/3
In a recent survey of 1,700 Game Stop customers 884 of them responed that they play video games on their
personal computer. What percent of the customers surveyed responded that they play video games on their
personal computer?
Answers
Answer:
52% play video games on their personal computer.
Step-by-step explanation:
884/1700 = 52%
only odd numbers are prime numbers true or false?
Answers
Answer:
False.
:D
幸運を！
The temperature is 15º and is expected to fall 2º each hour during the night. write the linear equation
Answers
Answer:
y = 15 - 2x
Step-by-step explanation:
The starting temp is 15, and we expect it to fall 2 degrees each night. We substitute x and y, y = total temp at the end of the examined time period, x = number of hours.
Please give me thanks by clicking the heart button! :)
Answer:
15 - 2(x)
x = hours
Step-by-step explanation:
HELP NOW
The energy created by the WHAT
gradient is used by ATP synthase to chemically
bond a phosphate group to ADP, synthesizing ATP
in the light reactions of photosynthesis,
Answers
Answer:
ATP synthase utilizes energy of the proton gradient to attach phosphate group to ADP.
Step-by-step explanation:
Below is the total benefit Michelle estimates she would get for eating handfuls of dried cranberries in one sitting. Number of Handfuls Total Benefit (dollars) 1 $2.00 2 $3.50 3 $4.50 4 $5.00 5 $5.25 6 $5.00 7 $4.00 If a handful of dried cranberries costs $0.50, what is the optimal number of handfuls for Michelle to eat? 2 3 4 5 6
Help please don't have to just say how your day is
Answers
Answer:
5
Step-by-step explanation:
NEED HELP ASAP PLEASE AND THANK YOU IN ADVANCE
Answers
Answer:
C
Step-by-step explanation:
PLiss i really need help pliss, plisss
Answers
Step-by-step explanation:
I tried. if I got this wrong I might need to go back to kindergarten
pls help with this math question
-1 1/2 (-2/5x + 1 1/3) -2 1/2 (3/5x + 1/3)
Answers
Answer: -3.73
Step-by-step explanation:
Hope it's correct.
Glad I could help!
the number has three digits that add up to 10 when it is multiply by 0.5 the product is 6.35. whats the number?
Answers
Answer:
i know
Step-by-step explanation:
bro
4(x-3)=9 what is the first step
Answers
Answer:
x= 5.25
Step-by-step explanation:
You have to get x alone, so do inverse operations.
(Basically, reverse what it is)
4(x-3)=9
divide 4 by both sides to get rid of 4 on left side
9/4 = 2.25
(x-3) = 2.25
Now add 3 to both sides, to get x alone
2.25 + 3 = 5.25
x=5.25
Check work
4(5.25-3) = 9
4(2.25) = 9
9=9
Select the correct graph of the function y = –1/8(x – 1)2 – 4 below.
Question 8 options:
A)
image
B)
image
C)
image
D)
image
Answers
Step-by-step explanation:
The given function is :
[tex]y=\dfrac{-1}{8}(x-1)^2-4[/tex] ...(1)
It is an equation of parabola. The vertex form for equation of parabola is given by :
[tex]y=a(x-h)^2+k[/tex] ...(2)
Here,
Vertex = (h,k), axis = h and rate = a
From equation (1) and (2) :
a = -1/8, h = 1 and k = -4
The atached graph shows the graph for the given equation.
Simplify the expression shown below:
log(10^6 X^2), where x > 0
Answers
Answer:
2^6 Times 5^6x^6
Step-by-step explanation:
what is the answer to the question 1 plus the number 1
Answers
Answer:
2
Step-by-step explanation:
1 +1 = 2
find the coordinates of the centroid of the triangle with the given vertices. D(-4, -2), E(1, 0), F(9, 5)
Answers
Answer:
[tex] (x, y) = (2, 1) [/tex]
Step-by-step explanation:
Given vertices of a triangle:
[tex] (x_1, y_1) = (-4, -2) [/tex]
[tex] (x_2, y_2) = (1, 0) [/tex]
[tex] (x_3, y_3) = (9, 5) [/tex]
Using the centroid formula:
[tex] (x, y) = (\frac{x_1 + x_2 + x_3}{3}, \frac{y_1 + y_2 + y_3}{3}) [/tex]
Plug in the values into the formula
[tex] (x, y) = (\frac{-4 + 1 + 9}{3}, \frac{-2 + 0 + 5}{3}) [/tex]
[tex] (x, y) = (\frac{6}{3}, \frac{3}{3}) [/tex]
[tex] (x, y) = (2, 1) [/tex]
Help please
Use the following figure to find the answer
Answers
What is 9 to the power of 4 + 6(7 x 3) - 3?
Answers
Answer: 127^9 so 8594754748609400000
Step-by-step explanation: i’m not sure but 4+6 (7x3)-3 = 127 127^9
Determine if the two triangles are congruent. If they are, state how you know.
A. SAS
B. not enough information
C. SSS
D. AAS
Answers
Answer:
A. SAS
Step-by-step explanation:
Since the marked angle is between the marked sides, and the corresponding sides are marked as congruent, the two triangles are congruent by SAS (side angle side).
Can a wheel make 72 revolutions per minute
Answers
Answer:
no,i don't think about it
What is an equation of the line that passes through the points (-3,1) and
(3, -1)? Put your answer in fully reduced form.
Answers
The equation of the line is y = -1/3 x.
So, the gradient is -1/3
Then, substitute one five point into he equation y-y1= m(x-x1) (where m is the gradient)
sub (3,-1)
y+1= -1/3(x-3)
Expand the brackets
y+1= -1/3x+1
Take 1 to the other side as a negative number
So, the line's equation is y=-1/3x
pls help me and really fast
Answers
Which equation represents a line which is perpendicular to the line 4x
y = -2?
Answers
Answer:
y=4x +7 (top-left)
Step-by-step explanation:
They have the same exact slope meaning they can not cross.
The only time they would cross is if they had the same y-intercept. Which they don't
Write an equation for the line that passes through the point -3,2 and is parallel to line 4X + 2Y= -10
Answers
9514 1404 393
Answer:
2x +y = -4
Step-by-step explanation:
The equation of the given line can be simplified by dividing all of the numbers by 2:
2x +y = -5
The parallel line can have the same coefficients of x and y, but will have a different constant. The constant will be appropriate to the given point, so will be ...
2x +y = constant
2(-3) +(2) = constant = -6 +2 = -4
The parallel line is ...
2x +y = -4
PLEASE HELP!!!!!!
Solve the following system of equations using elimination.
5x+y=24
-5x-4y=-56
Answers
Answer:
x = 8/3 and y = 32/3
Step-by-step explanation:
Add the two equations, getting -3y = -32, thus y = 32/3
Sub for y in first equation, getting 5x + 32/3 = 24
5x = 40/3
x = 8/3
The coordinates of the turning point of the parabola whose
equation is y = x² - 6x + 8
Answers
Answer:
y=×2-6×+7 is the answer
If cos a= 0.93,Sin 0 =0.26, and tan ß = 0.84, find a + B + 0.
Answers
Answer:
76.665
Step-by-step explanation:
Given that,
cos α = 0.93, Sin θ =0.26 and tanβ = 0.84
We need to find the value of α, β and θ
[tex]\alpha =\cos^{-1}(0.93)\\\\=21.565\\\\\beta =\tan^{-1}(0.84)\\\\=40.030\\\\\theta=\sin^{-1}(0.26)\\\\=15.07[/tex]
So,
[tex]\alpha +\beta +\theta=21.565+40.03+15.07\\\\=76.665[/tex]
Hence, the final answer is 76.665.