Answer:
centre = (- 6, - 1 ) , radius = 5
Step-by-step explanation:
The equation of a circle in standard form is
(x - h)² + (y - k)² = r²
where (h, k ) are the coordinates of the centre and r is the radius
Given
x² + y² + 12x + 2y + 12= 0
Collect the x- terms and the y- terms together and subtract 12 from both sides
x² + 12x + y² + 2y = - 12
Using the method of completing the square
add ( half the coefficient of the x / y coefficients )² to both sides
x² + 2(6)x + 36 + y² + 2(1)y + 1 = - 12 + 36 + 1
(x + 6)² + (y + 1)² = 25 ← in standard form
with (h, k ) = - 6, - 1 ) as centre and r = [tex]\sqrt{25}[/tex] = 5
through (-4 0) perp y=2x-4 point slope form
4++++++++++++++++++++++++++++++++=4=
Answer:
is equal to 0
Step-by-step explanation:
points Lang habol
Cathy is hiking in the mountains. She hikes 5.9 km the first
day and 4.9 km the second day. What is the average
distance she hiked each day?
5.4 km
B
6.2 km
1.0 km
D
10.8 km
Answer:
A
Step-by-step explanation:
d1 = 5.9 km
d2 = 4.9 km
d_av = (5.9 + 4.9)/2 = 10.8/2 = 5.4 km I think that's A
Please help me with this question
Answer:
F
Step-by-step explanation:
Answer:
F
Step-by-step explanation:
You only need to read as far as ...
y ≤
to choose the correct graph. The values in the solution will be less than or equal to those on the boundary line. That means the graph will be shaded below the line, and the line will be solid (because it is part of the solution).
The graph with a solid line and shading below is graph F.
what is 4 + 3i^2 and is it real or imaginary?
Answer:
4+6i
Step-by-step explanation:
Distribute the 2 to the 3i
You get 6i, you can't add 4 to 6i because 4 is real and 6i is imaginary.
It's a complex imaginary number
Real
[tex]\\ \sf\longmapsto 4+3i^2[/tex]
i^2=-1[tex]\\ \sf\longmapsto 4+3(-1)[/tex]
[tex]\\ \sf\longmapsto 4-3[/tex]
[tex]\\ \sf\longmapsto 1[/tex]
The graph shows a proportional relationship between the number of books sold at a yard sale and the amount of money collected from book sales.
Answer:
1.5
Step-by-step explanation:
6/4
25 POINTS! Plz help me!
Answer:
2nd option
Step-by-step explanation:
The standard form of an exponential function is
y = a[tex]b^{x}[/tex]
Use points on the graph to find a and b
Using (0, 5 ) , then
5 = a[tex]b^{0}[/tex] = a
Then
y = 5[tex]b^{x}[/tex]
Using (1, 2 )
2 = 5[tex]b^{1}[/tex] = 5b ( divide both sides by 5 )
[tex]\frac{2}{5}[/tex] = b
Thus
f(x) = 5[tex](\frac{2}{5}) ^{x}[/tex] ← equation of graph
Factor 26r3s 52r5 â€"" 39r2s4. What is the resulting expression? 13(2r3s 4r5 â€"" 3r2s4) 13r2s(2r 4r3 â€"" 3s3) 13r2(2rs 4r3 â€"" 3s4) 13r2(26r3s 52r5 â€"" 39r2s4).
The resulting expression from the factorization of 26r³s + 52r^(5) - 39r²s⁴ is; 13r²(2rs + 4r³ - 3s⁴)
We want to factor the algebraic expression;
26r³s + 52r^(5) - 39r²s⁴
Now, we need to first find the highest common factor here and factorize out.
First of all for the letters;
The highest common factor of the letters is r²
Factors of 26 = 1, 2, 13, 26
Factors of 39 = 1, 3, 13, 39
Factors of 52 = 1, 2, 4, 13, 26, 52
The highest common factor for the 3 numbers is 13.
Thus,in total, the highest common factor for the algebraic expression is 13r².
Finally, we have;
13r²(2rs + 4r³ - 3s⁴)
Read more about factorization of algebraic expression at; https://brainly.com/question/11434122
in need of help. plz
ANSWER ASAP WILL MARK BRAINLIEST
Answer:
how many
Step-by-step explanation:
Please Help Question in picture
Also could you drop your socials so I can ask a few more questions through dm's im running low on brainly points
Answer:
the coordinates of B are; (7,3)
what is g(5)?
g(x)=−x+4, find g(5)
Answer:
g(5) = -1
Step-by-step explanation:
g(5)= -(5)+4
g(5)= -1
Answer:
-1
Hope you could get an idea from here.
Doubt clarification - use comment section.
꧁TheoriesMadeTheWorld꧂
6m+7n+5m−3n simpified
Answer:
11m + 4n
Step-by-step explanation:
when two numbers with the same variable are added together or subtracted the result is just the numbers added or subtracted. So you can add 6m and 5m to get 11m. and you can subtract 3n from 7n to get 4n
11m + 4n
Find the output, y, when the input,x, is 6.
y =?
Answer:
Y= 0
Step-by-step explanation:
The price of a pair of shoes increases from $54 to $68. What is the percent increase to the nearest percent? [The percent increase is ___%]
Answer:
25.93%
Step-by-step explanation:
Percent change formula is [tex]\frac{(V_2-V_1)}{|V_1|}[/tex]x 100
v2 = value 2
v1 = Value 1
now you substitute in.
[tex]\frac{68-54}{|54|}[/tex]x 100
[tex]\frac{14}{54}[/tex]x100
0.259259x100
= 25.9259% or 25.93%
this question
please help please
m=n+4b
Answer:
m=n+4b:- b=m-n/4.........
suppose+the+population+of+a+small+town+is+16000+and+growing+exponentially+at+2.2+%.+how+many+years+until+the+population+reaches+25000?
Answer:
20.5 years
Step-by-step explanation:
The population is given by the exponential function ...
p = 16000·(1 +0.022)^t
When p = 25000, we can find the value of t by taking logarithms.
log(25000/16000) = t·log(1.022) . . . . . divide by 16000, take the log
t = log(25/16)/log(1.022) ≈ 20.5 . . . . . . divide by the coefficient of t
It will take about 20.5 years for the population to reach 25000.
Can someone help me with this please?!
Answer:
x < 6
Step-by-step explanation:
1) -5x > -30
2) divide both sides by -5
3) flip the sign as we divided inequality by a negative
4) x < 6
What is the equation of this graphed line?
Enter your answer in slope-intercept form in the box.
Answer:
y = -1/3x - 5
Introduction:
The slope intercept form of a line is y = mx + b. Now, let's start out by solving the slope.
Step-by step explanation:
=> Slope = rise/run = [tex]\frac{y_{2} - y_{1} }{x_{2}-x_{1} }[/tex]=> Slope = [tex]\frac{-3- (-7) }{-6-6 }[/tex]=> Slope = [tex]\frac{4}{-12}[/tex]=> Slope = [tex]\frac{-1}{3}[/tex]Since we have found the slope, let's find the y-intercept to create our equation.
=> y-intercept = -5Conclusion:
Therefore, our new equation is y = -1/3x - 5
Hoped this helped.
[tex]BrainiacUser1357[/tex]
Does the graph represent a function?
Answer:
no
Step-by-step explanation:
If it represented a function then it wouldn't be curved. curved lines don't represent a function
Miss Watson runs a distance of 200 meters in 25 seconds.
Work out the average speed of Miss Watson in meters per second?
Step-by-step explanation:
D = 200m T = 25s
The formula for speed is speed = distance ÷ time
S = 200 ÷ 25
S = 8m/s
write one in factor form with solutions 3,-1,-3i?
Answer:
Factored form: [tex](x-3)(x+1)(x^2+9)[/tex]
Expanded form: [tex]x^4-2x^3+6x^2-18x-27[/tex]
Step-by-step explanation:
[tex](x-3)(x+1)(x^2+9)[/tex]
[tex](x^2-2x-3)(x^2+9)[/tex]
[tex]x^4+9x^2-2x^3-18x-3x^2-27[/tex]
[tex]x^4-2x^3+6x^2-18x-27[/tex]
[tex]x-3=0[/tex] has a solution of [tex]x=3[/tex]
[tex]x+1=0[/tex] has a solution of [tex]x=-1[/tex]
[tex]x^2+9=0[/tex] has a solution of [tex]x=\pm 3i[/tex]
Help me with this one please
Please help me 87x89 PLEASE
Answer:
7743 :)
Step-by-step explanation:
[tex] \frac{5}{5x - 7} = 10[/tex]
solve the equation.
Answer:
x=1.5
Step-by-step explanation:
5=10(5x-7)0.5=5x-77.5=5xx=1.5PLEASE HELP ME!!! I"L GIVE BRAINLEST
3m + 3
m = -7
-12
-18
-16
24
Answer:
m = [tex]\frac{-421}{6}[/tex]
Step-by-step explanation:
Let's solve your equation step-by-step.
x
Step 1: Simplify both sides of the equation.
3m+3m=−7−12−18−(16)x(24)
3m+3m=−7+−12+−18+(−384)
(3m+3m)=(−7+−12+−18+(−384))(Combine Like Terms)
6m=−421
6m=−421
Step 2: Divide both sides by 6.
[tex]\frac{6m}{6} =\frac{-421}{6}[/tex]
m = [tex]\frac{-421}{6}[/tex]
I really hope this help's :)If a team won 2/3 of its games and lost the rest. what was the team's win-loss ratio
Answer: 2 wins to 1 loss
Step-by-step explanation:
15 POINTS HELP PLZ
Which expression is equal to f(x) - g(x)?
Answer:
c it's probably c I think I'm not really too good at this but I'm probably sure it's c.
1 1/3 x 5/8
A.3/4
B.4/5
C.5/6
D.5/8
(1 pc
3. A recipe calls for 4 cups of sugar to make 4 dozen cookies. Use the proportion to calculate
how much sugar is needed to make 8 dozen cookies.
4 cups
x cups
4 dozen 8 dozen
O2 cups
08 cups
08.5 cups
0 12 cups
I really need help! I give Brainly-est
Answer:
8cups
Step-by-step explanation:
if it takes 4-cups for 4-dozen. That's 1-cup each dozen so 8-dozen is 8-cups