Answer:
x=√−y2+25 or x=−√−y2+25
Step-by-step explanation:
x2+y2=25
Step 1: Add -y^2 to both sides.
x2+y2+−y2=25+−y2x2=−y2+25Step 2: Take square root.
x=√−y2+25 or x=−√−y2+25Answer:
x=√−y2+25 or x=−√−y2+25
Find (f•g)(-4) if f(x)= 3x +6 and g(x)=3x+6.
Answer:
-12
Step-by-step explanation:
(f·g)(-4) = f(g(-4))
g(-4) = 3(-4)+6
g(-4) = -12 + 6
g(-4) = -6
f(g(-4)) = f(-6) = 3(-6) +6
f(g(-4)) = -18 + 6
f(g(-4)) = -12
can somebody help me please
Answer:
D. X = 7
Step-by-step explanation:
See image for explanation
i’m really stuck on this one if you can help i’d really appreciate it
you're correct. its to take out the greatest common factor.
Tell whether (-3, 3) is a solution of the system.
what is 19.2 x 10^9 minutes in hours ANSWER ASAP PLSS
Answer:
19200000000
Step-by-step explanation:
1000000000 is 10^9. Then that times 19.2 is 19200000000.
(Hope this helped and have a great day)
(please mark this brainliest)
can someone please help me i don’t understand it
Answer:
d= bv + r
Treat it like you would a normal equation. Multiply by b and add r to isolate d.
What is the volume of a sphere with a radius of 8 m, rounded to the nearest tenth of a cubic meter?
Answer:
267.94
Step-by-step explanation:
V=4/3(pi)r^2
V=4/3(3.14)8^2
V=4/3(3.14)64
V=4/3(200.96)
V=267.94
Answer:
2144.7 m^3
Step-by-step explanation:
Solve x − 2y = 3 for x.
Answer:
[tex]x=2y+3[/tex]
Step-by-step explanation:
So we have the equation:
[tex]x-2y=3[/tex]
And we want to solve for x. In other words, we want to isolate the x-variable.
So, add 2y to both sides of the equation.
[tex](x-2y)+2y=(3)+2y[/tex]
On the left, the 2y cancel. Simplify the right:
[tex]x=2y+3[/tex]
And we're done!
Answer:
x = 3 + 2y
Step-by-step explanation:
This is the answer because:
1) First, you have to isolate x, in order to isolate x you have to bring x to the end of the equation.
2) Then, you have to add 2y to both sides of the equation.
Another way you can think of this is:
1) If you add 3 + 2y you would figure out the answer because if you want to find x for a subtraction equation, you can add the answer to the equation with the number.
For example, x - 20 = 10, now to figure this equation out, you can either isolate the x, or you can add the answer in the equation with the remaining number in the equation.
Hope this helps!
help me find p=
325+7=332
Answer:
p = 332
Step-by-step explanation:
14=7(2x-4)
I have to solve this equation using two different methods and I don’t know how
Answer:
14=7(2x-4)
0r, 14/7 = 2x-4
or, 2= 2x-4
0r,2x= 6
or x=3
14=7(2x-4)
14=14x -28
14x=42
x=42/14=3
Method 1
Divide both sides by 7 first to get
14 = 7(2x-4)
14/7 = 7(2x-4)/7
2 = 2x-4
Then add 4 to both sides
2+4 = 2x-4+4
6 = 2x
2x = 6
Finally, divide both sides by 2
2x/2 = 6/2
x = 3
which is the final answer
------------------------------------------------------------------------------------------------
Method 2
Distribute the 7 through to each term in the parenthesis
14 = 7(2x-4)
14 = 7*2x + 7*(-4)
14 = 14x - 28
Then we follow similar steps as done earlier. Add 28 to both sides
14+28 = 14x-28+28
42 = 14x
14x = 42
Then divide both sides by 14 to fully isolate x
14x/14 = 42/14
x = 3
Either way we get the same result. As to which method you pick (if you could only choose one), its up to you based on whichever you find easier.
The basic idea with either method is that we follow PEMDAS in reverse to undo everything happening to x. This way we fully isolate it.
----------------
Checking the answer:
Plug x = 3 into the original equation. Simplify to get
14 = 7(2x-4)
14 = 7(2*3-4)
14 = 7(6-4)
14 = 7*2
14 = 14
This confirms the answer. As you can see, if we know the value of x, we use PEMDAS to simplify both sides. But if we don't know x, and want to find it, then we follow PEMDAS in reverse.
First step in copying an angle?
Answer:
Make a point P that will be the vertex of the new angle.
From P, draw a ray PQ. ...
Place the compasses on point A, set to any convenient width.
Draw an arc across both sides of the angle, creating the points J and K as shown.
Step-by-step explanation:
These are the steps to copying an angle
I hope this helps you :)
Answer:
make a point p
hope this helps
evaluate ( r - s ) 3 t r 2 r =-3 s=-4
Answer:
-9t
Step-by-step explanation:
(r-s) 3 × t × r
(-3- -4) 3 × t × -3
3 × t × -3
-9t
I needdd help sorry I don’t know what to type
Answer:
parallel lines has same slope
we have
y = -3/2x+2
comparing with y = mx+c
m=-3/2
so answer is -3/2
if you're driving 30 miles per hour how many hours does it take to drive 60 miles?
Answer:2 hours
Step-by-step explanation:
(ANSWER FOR POINTS AND BRAINLEST!!!) Identify the scale factor in the image below.
1.) 2
2.) 1/2
3.) 3/2
4.) 2/3
Answer:
it should be 3/2 !
Whoever answers first is brainliest
Answer:
Let the truck is driven X miles per day
Charges of company A will be = 90+0.4X
Charges of company B will be =30+0.7X
Let us find out value of X when charges of both companies are same
which means that 90+0.4 X= 30+0.7X
90-30 = 0.7X-0.4X
60 = 0.3X
60/0.3 = X
X= 200
The charges of both companies will be same if truck is driven 200 miles per day
Company A will have better deal if truck is driven more than 200 miles per day ( because per mile rate of company A is less than company B)
Step-by-step explanation:
What is the equation number of songs, one, none, or plenty and the total cost
intergers: -6+3 plz help me and plz show how you figured it out i can’t
Answer:
-3
this diagram might help you ( ◜‿◝ )♡
Answer:
Question : -6 + 3 =?
Answer : -3
The length of a rectangle is 4 cm longer than its width.
If the perimeter of the rectangle is 60 cm, find its length and width.
Hope it helped
Thank YouFind the mean of 9, 1, 8, 3, 2, 1 graphically.
Answer: 4
Step-by-step explanation:
Mean means to add up the values and divide it by the number of values there is so 9 + 1 + 8 + 3 + 2 + 1 = 24, then 24 / 6 is 4.
Study the Function
F(x)=4x+9
Evaluate for f(7)
Answer:
37
Step-by-step explanation:
Step 1:
x = 7
Step 2:
4 ( 7 ) + 9
Step 3:
28 + 9
Answer:
37
Hope This Helps :)
What is this I am so confused please help
Answer: A
Step-by-step explanation:
When you write exponential form to radical form, the fraction tells us that kind of root it is. Since it is a cubed root, as indicated by the 3 in front of the radical, we know that the fraction will be [tex]\frac{1}{3}[/tex]. If it were to be [tex]\frac{1}{3}[/tex], the entire radical would be to the power of 1. Since the radical is to the power of x, our answer would be [tex]125^{\frac{1}{3}x }[/tex].
What type of number is -18
Answer:
a nagitive integer
Step-by-step explanation:
an integer is a whole number
2x – 10 = 1/2(x – 8)
Answer:
X= 4
Step-by-step explanation:
Plot the image of point Q under a reflection across the -axis.
please help, I don’t know this question!
Answer:
pit it on -4 because your reflecting it on x
Find the x and y intercepts of the graph of the function
Answer:
y intercepts= 0 x intercepts= none
nation:
The 2 funtions above the x axis do not intercept with the y-axis or the x-axis. They just hover above it, but never atcually touch it.
The function bellow the x-axis only intercepts the y-axis at 0,0
The x and y intercepts of the graph of the function are x=none and y=-1 respectively.
From the given figure we need to find the x and y intercepts of the function.
What is x and y intercepts of the function?The x-intercept is where a line crosses the x-axis, and the y-intercept is the point where the line crosses the y-axis.
From the graph, we can see two curves running on x-axis.
The curve crosses the y-axis at y=-1.
Therefore, the x and y intercepts of the graph of the function are x=none and y=-1 respectively.
To learn more about the x and y intercepts visit:
https://brainly.com/question/14180189.
#SPJ5
PLEASE HELP, BEST ANSWER GETS BRAINIEST Each letter of the word "RESPONSIBLE" is written on a separate slip of paper and placed in a hat. 1) What is the probability of choosing an E? 2) What is the probability of choose an "E" and then an "R" without replacing the letter? Write as a fraction
Answer:
1) 2/11
2) 2/121
Step-by-step explanation:
1. Because there are 2 E's, you have to chances out of your 11 changes, thus why the fraction 2/11 is the solution.
2. You know that 2/11 is the first fraction, so now find R. R has a 1/11 chance of getting chosen, so you multiply 2/11 and 1/11 to get 2/121.
Answer:
1) 2/11
2) 2/121
Step-by-step explanation:
While sitting in class you overheard one of your classmates say, "This equation has infinite solutions, because when I put it in Desmos it gave me parallel lines so I know it makes a conditional equation." Realizing that the student is incorrect, what would you say to help your classmate get their facts straight?
Answer:
See below
Step-by-step explanation:
The systems of linear equations represent two lines.
There are 3 possible outcomes with two lines on the plane.
1. Lines intersect
In this case there is one solution, which is the point of intersection.2. Lines are parallel
In this case the lines never intersect, so there is no solution2. Lines are same
In this case the lines overlap, so there are infinitely many solutions.Evaluate: the product of 4 and 7*
Answer:
28
Step-by-step explanation:
4 x 7 = 28
Hope this helps you :)
please help me on this
Answer:
12x+10
Step-by-step explanation:
Add up the lengths of all sides to find the perimeter
P = x + 2( x+5) + 6(x-1) + 3(x+2)
Distribute
= x + 2x+10 +6x-6 + 3x+6
Combine like terms
=x+ 2x+ 6x+3x + 10 -6+6
= 12x+10