Answer:
B
Step-by-step explanation:
hello please help i’ll give brainliest
Write the equation in standard form for the circle with center (-7,0) and radius 4 7
Answer:
x² + y² - 8x -14y - 105 = 0
Step-by-step explanation:
The centre of the circle is (-7,0) and the radius is (4,7) . Firstly let's find the radius using Distance formula .
=> D = √{ (-7-4)²+(0-7)²}
=> D = √ 11² + 7²
=> D = √ 121 +49
=> D = √170
Now using the standard equation of circle ⭕ ,
=> ( x - h)²+(y-k)² = r²
=> ( x - 4)²+(y-7)²= (√170)²
=> x² + 16 -8x + y² + 49 -14y = 170
=> x² + y² -8x -14y = 170 -65
=> x² + y² - 8x -14y - 105 = 0
• Hence the equation of circle is x² + y² - 8x -14y - 105 = 0 .points for sell come get theme.
Rex paid $250 in taxes to the school district that he lives in this year. This year's taxes were a 12% increase from last year. What did Rex pay in school taxes last year?
Answer:
$223.21
Step-by-step explanation:
Last year the amount of taxes was x, an unknown amount. That was 100% of last year's tax cost.
This year, taxes went up by 12%, so this year the taxes are 112% of what they were last year. This year the taxes were 112% of x, and they were $250.
112% of x = 250
1.12x = 250
x = 250/1.12
x = 223.21
Answer: $223.21
PLEASE HELP ME DUE IN 5 MINS! Evaluate the expression for =10
(−10)(+2)
Answer:
12
Step-by-step explanation:
(10-10)(10+2)
=12
do whats inside the brackets then multiply (BEDMAS)
hope this helps
NEED HELP ASAP!
USE SUBSTITUTION TO GET THE (X, Y)
THANKS!
Step-by-step explanation:
[tex]\huge\mathcal\pink{here \: is \: your \: solution..} \\ \\ equation = > y = - 8x - 49 \\ \\ = > y = - x \\ \\ put \: the \: value \: of \: y \: in \: equation \\ \\ - x = - 8x - 49 \\ \\ - x + 8x = 49 \\ \\ 7x = 49 \\ \\ x = 49 \div 7 \\ \\ x = 7 \\ \\ now \: \: \: y = - 7 \\ \\ \huge\mathfrak\green{hope \: it \: helps.} \\[/tex]
what statement is true about perpendicular lines
Answer:
The lines intersect at a right angle
Step-by-step explanation:
The circumference of a circle is 15 centimeters. What is the diameter? Round to the nearest hundredths place.
Answer:
4.77
Step-by-step explanation:
because Circumference can be found with this equation
C = 2piR
we need to plug in 15 for Circumference and solve for its radius or R.
15 = 2piR
15/2pi = R
but we need diameter which is 2R so we just need to multiply the answer by 2.
15/2pi × 2 = Diameter
15/pi = D
approximately = 4.77
Point O is the centre of the circle.
What is the value of x°?
Can someone HELP ME ON NUMBER 16 IM NOT SURE IM RIGHT!!!
Answer:
true im not sure tho but trust me
Step-by-step explanation:
8 . 6(12-4) dividedby 2
Answer:24
Step-by-step explanation:6 x 8 = 48 divied by 2 = 24
Answer:
[tex]\huge\boxed{Answer\hookleftarrow}[/tex]
[tex] \frac{6(12 - 4)}{2} \\ = \frac{6(8)}{2} \\ = \frac{48}{2} \\ = 24[/tex]
ʰᵒᵖᵉ ⁱᵗ ʰᵉˡᵖˢ
# ꧁❣ RainbowSalt2²2² ࿐
I Need help ASAP it is due today 5/26/21
Answer:
Step-by-step explanation:
[tex]9*8=72\\0.5*6*8=24\\10*9=90\\72+24+90=186 m^{2}[/tex]
please answer correctly !!!!! Will mark Brianliest !!!!!!!!!!!!!!
Answer:
44.1
Step-by-step explanation:
Cosine = Adjacent over Hypotenuse
Adjacent of ∠T = 28 and hypotenuse = 39
Which means that [tex]cos(x)=\frac{28}{39}[/tex]
Now we solve for x
To get rid of the "cos" we take the inverse of cos ( which is [tex]cos^-^1[/tex] ) and apply it to each side
[tex]cos^-^1((cos)x) = x\\cos^-^1(\frac{28}{39} )=44.11461855[/tex]
We're left with x = 44.11461855
Our last step is to round to the nearest tenth and we get that the answer is 44.1
18:40 ratio in simplest terms
Answer:
9/20
Step-by-step explanation:
Therefore, 18/40 simplified to lowest terms is 9/20.
9/20 is the simplest term of 18:40
which is the pattern for factoring the sum of cubes
Answer:
4th option
Step-by-step explanation:
The factors of a³ + b³ are
a³ + b³ = (a + b)(a² - ab + b² )
Answer:
4th option
Step-by-step explanation:
PLEASE PLEASE HELP!!
Answer:
at first subtract the remainders from the corresponding given number
HELLPPP ASAP FIRST CORRECT ANSWER WILL RECEIVE BRAINLIEST
If 3/7 is written as a decimal, will the digits after the decimal eventually repeat?
A.Yes, because
is an irrational number.
B. Yes, because
is a rational number.
C. No, because
is an irrational number
D. No, because
is a rational number
Answer:
Yes, because its an rational number
Step-by-step explanation:
Solution: by division.
3/7 = 0.42857142857142857142…..
As you can see, the first six decimal places make a loop and become repetitive.
Then I proceeded to divide 100/6. That equals 16 remaning 4. Then counted four digits from0.428571. The 100th digit equals 5.
Can someone help me we are suppose to do pythagorean theorem.
Answer:
yeah this easy [tex]a^{2} +b^{2} =c^{2} \\leg leg hypotnuse[/tex]
a is a leg
b is a leh
c is a hypotnuse
Step-by-step explanation:
Que es la desviación estándar?
what is the equation of this line
a. y = -3/2x+9
b. y = -2/3x+18
c. y = 2/3x+6
d. y = 3/2x+6
Answer:
A. y = -3/2x + 9
Step-by-step explanation:
In slope intercept form (y = mx + b), b represents the y-intercept. Therefore, simply look on the graph where the line intersects with the y-axis. In this case, that is all that was needed since we can clearly see that equation A is the only one with a y-intercept of 9.
Answer:
a
Step-by-step explanation:
any two points on the line are
(0,9 ) and (4,3)
slope=(3-9)/(4-0)=-6/4=-3/2
y intercept is 9
so eq. of line is y=-3/2x+9
Find the slope. Please reply if you can help
Answer:
1/1 because you go up 1 and over 1
Answer:
look at the picture i have sent
Find the width of a cereal box that has a volume of 5,440 cm3 and is 34 cm long and 20 cm high.
Answer:
8 cm wide.
Step-by-step explanation:
5440/34/20=8 .
19+4n
But "n=4"
IF YOU DON'T EXPLAIN OR PUT A FAKE ANSWER YOU WILL BE REPORTED
Answer:
35
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightStep-by-step explanation:
Step 1: Define
Identify
19 + 4n
n = 4
Step 2: Evaluate
Substitute in n: 19 + 4(4)Multiply: 19 + 16Add: 35G is a trigonometric function of the form g(x)=a sin(bx+c)+d The function intersects its midline at (-1,6) and has a minimum point at (-3.5,3). Find the formula for g(x). Give an exact expression.
Answer:
g(x) = 3*sin((-15/4)*pi*x + (-15/4)*pi) + 6
Step-by-step explanation:
The function has the form:
g(x) = a*sin(b*x + c) + d
We know that:
The midline is at (-1, 6)
The midline is the value of g(x) when the sin(x) part is equal to zero
Then the midline is y = 6 = d
g(x) = a*sin(b*x + c) + 6
And from this we also know that:
sin(b*-1 + c) = 0,
We also know that the minimum is at (-3.5, 3)
The minimum is the y-value when the sin(x) part is equal to -1
Then
sin(b*-3.5 + c) = -1
And:
g(-3.5) = 3 = a*(-1) + 6
3 = -a + 6
a = -3 + 6 = 3
The equation is something like:
g(x) = 3*sin(b*x + c) + 6
To find the values of b and c, we need to use the two remaining equations:
sin(b*-3.5 + c) = -1
sin(b*-1 + c) = 0
We also know that:
Sin(0 ) = 0
sin( (3/2)*pi) = -1
where pi = 3.14
Then we can just write:
b*-1 + c = 0
b*-3.5 + c = (3/2)*pi
From the first one, we get:
-b + c = 0
c = b
Replacing that on the other equation we get:
c*-3.5 + c = (3/2)*pi
c*(-3.5 + 1) = (3/2)*pi
c*(-2.5) = (3/2)*pi
c = (3/2)*pi/(-2.5)
and:
-2.5 = -5/2
c = (3/2)*(-5/2)*pi = (-15/4)*pi
Then the equation becomes:
g(x) = 3*sin((-15/4)*pi*x + (-15/4)*pi) + 6
The trigonometric function equation becomes [tex]g(x)=3 sin(-1.88x-1.88)+6[/tex]
The function has the form:
[tex]g(x)=a sin(bx+c)+d[/tex]
The midline is at (-1, 6)
So, the midline is y = 6 = d
[tex]g(x)=a sin(bx+c)+6[/tex]
We know that the midline is the value of g(x) when the sin(x) part is equal to zero
Given that The function intersects its midline at (-1,6) and has a minimum point at (-3.5,3).
[tex]sin(-1*b + c) = 0,[/tex]
The minimum is the y-value when the sin(x) part is equal to -1
[tex]sin(-3.5*b + c) = -1[/tex]
Since, [tex]g(-3.5) = 3 = a*(-1) + 6[/tex]
[tex]a = -3 + 6 = 3[/tex]
Now equation become,
[tex]g(x) = 3*sin(b*x + c) + 6[/tex]
To find the values of b and c, we need to use the two remaining equations:
[tex]sin(-3.5b + c) = -1=sin( (3/2)* \pi)\\\\ -3.5b + c = (3/2)* \pi[/tex]
[tex]sin(-1b + c) = 0=sin(0)\\\\-b+c=0\\\\b=c[/tex]
Substituting b = c in above equation and [tex]\pi=3.14[/tex]
We get,
[tex]-3.5c + c = (3/2)*\pi\\\\-2.5c=4.71\\\\c=-1.88[/tex]
also [tex]b=-1.88[/tex]
Therefore, equation becomes [tex]g(x)=3 sin(-1.88x-1.88)+6[/tex]
Learn more:
https://brainly.com/question/13729598
GIVING AWAY 20 POINTS!!
HURRY PLEASE!!
QUESTION:
What is mBDG?
Answer:
242
Step-by-step explanation:
Circles have a total of 360°
mDBG does not include mBA or mGA
This means that mDBG = 360 - ( mBA + mGA )
mBA = 28° ( this is given )
mGA = 90° ( this is also given; it's indicated by the right angle )
Thus, mDBG = 360 - ( 28 + 90 )
28 + 90 = 118
mDBG = 360 - 118
360 - 118 = 242
Hence, mDBG = 242
determine the equation of a circle with the center (8,10) and radius 6
Answer:
(x - 8)² + (y - 10)² = 36
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Coordinates (x, y)Pre-Calculus
Circle Center Formula: (x - h)² + (y - k)² = r²
(h, k) is centerr is radiusStep-by-step explanation:
Step 1: Define
Identify
(h, k) = (8, 10)
r = 6
Step 2: Find Equation
Substitute in variables [Center Circle Formula]: (x - 8)² + (y - 10)² = 6²Evaluate exponents: (x - 8)² + (y - 10)² = 36What is 4.33 rounded to the nearest whole number?
Answer:
the answer is 4 because i rounded down. since its 3
Step-by-step explanation:
what is the answer for a and b ?
Answer:
a. 3/10
b. 25 people
Step-by-step explanation:
a. 12/40
simplify
3/10
b. 40 people so multiply everything by 5
5 x 5 =25 people
Answer:
a) 30% & b) 25
Step-by-step explanation:
16+7+5+12 = 40
a) 12/40 = 0.3 = 3%
b) 5/40 = .125
200 x .125 = 25
$32 is 8% of what amount?
Answer:
$32 is 8% of 400
Step-by-step explanation:
Have a good day :)
Answer:
100/8 = 12.5
32*12.5 = $400
The base of a basketball goal has the shape of a rectangular pyramid The base goal must be gilled with sand so the goal does not fall down The base of the pyramid 4.5 feet long and 4 feet wide. The height of a pyramid is 2.5 feet. How much sand be needed to fill the base of the basketball goal?
Answer:
15 ft^3
Step-by-step explanation:
Sand needed can be determined by calculating the volume of a pyramid
Volume of a pyramid = 1/3 x ( length base x height)
1/3 x ( 4.5 x 4 x 2.5) = 15 ft^3