Answer:
Step-by-step explanation:
let the system be 2x+3y=4
8x+12y=16
write the equation of the circle given a center of (1,3) and a point on the circle at (-2,7)
Answer:
Ecuación estándar de un círculo
(x−2)2+(y−2)2=25
Forma general de la ecuación de un círculo
x2−4x+y2−4y−17=0
Ecuaciones paramétricas de un círculo
x=5cosθ+2y=5sinθ+2
Step-by-step explanation:
Ecuación Estándar de un Círculo
La ecuación estándar de un círculo con el centro en (x_0, y_0) y radio r es
(x^2-x_0) + (y^2-y_0)=r^2
Ecuaciones Paramétricas de un Círculo
Las ecuaciones paramétricas de un círculo con el centro en (x_0, y_0) y radio r son
x=r cos \theta + x_0\\y=r sin \theta + y_0
Ecuación General de un Círculo
La ecuación general de un círculo con el centro en (x_0, y_0) y radio r es
x^2+ax+y^2+by+c=0,
donde
a=-2x_0\\b=-2y_0\\c=x^2_0+y^2_0-r^2
Indicate in standard form the equation of the line through the given points.
P(0, -4), Q(5, 1)
Can someone please help me with this?
Answer:
x-y=4
Step-by-step explanation:
(y+4)/(1+4) = x/5
(y+4)/5 = x/5
y+4 = x
-x+y= -4
x-y = 4
[Inequalities]
Please help and thanks. 1
write the inequality pls.
Answer:
1. x≥-2
2. x<-2
Step-by-step explanation:
Answer:
1. n≥=-2
2. n<=-2
Step-by-step explanation:
hope this helps!! <33
Find the perimeter P of the figure shown. Simplify your answer
Answer:
C) 26x + 3
Step-by-step explanation:
Perimeter = 7x + 2 + 5x - 3 + 9x + 7 + 5x - 3
combine like terms:
Perimeter = 26x + 3
9. Bianca is hosting a dinner party for 10 people. The main course's recipe states
that 400 g of sausage and 500 g of dry pasta is enough for four people.
a) How much sausage will she need?
b) How much pasta will she need?
Answer:
a) 1000 grams
b) 1250 grams
Step-by-step explanation:
Find out how much grams of sausage and dry pasta she needs for each person.
4 people = 400 g
1 person = 400 ÷ 4 = 100 g (sausage)
4 people = 500 g
1 person = 500 ÷ 4 = 125 g (dry pasta)
Find out how much grams of sausage and dry pasta is needed for 10 people.
10 person = 100 x 10 = 1000g (sausage)
10 person = 125 x 10 = 1250g (dry pasta)
5y + 3y + 5 ≤ ‐2(2y + 4) ( pls show work)
Answer:
y<-13/12
Step-by-step explanation:
12y<-8-5
12y<-13
Plz hurryThe center of circle Q has coordinates Q(6,-4) . If circle Q passes through R(14,2) , what is the length of its diameter?
Answer:
the diameter is twice the circle radius, or 20
Step-by-step explanation:
Recall that the radius is half the diameter <=> the diameter is twice the radius. In this problem we need to find the radius first, then multiply it by 2 to obtain the diameter.
We need to determine the distance between the center of the circle Q(6, -4) and the point R(14, 2) on the circle.
The Pythagorean Theorem applies here. Going from Q to R, x changes from 6 to 14, or 8 units, which is the horizontal leg of a right triangle, and y changes from -4 to 2, or 6 units. Thus, according to the Pythagorean Theorem, the length of the hypotenuse of this triangle is
r = √(6² + 8²) = √100 = 10
and so the diameter is twice that, or 20.
You are given that 5y = 4x.
Find the value of y when x=10
Answer:
y= 8
Step-by-step explanation:
4 x 10 = 40
40 ÷ 5 = 8
What is 16% of 80?
PLEASE DO NOT SOLVE, I KNOW THE ANSWER IS 12.8. JUST WRITE A PROPORTION ON HOW YOU GET THE ANSWER
Answer:
12.8
Step-by-step explanation:
(16÷100)×80 = 12.8
Please help me with this
Answer:
Step-by-step explanation:
About how many milliliters of soda are needed to fill one can?
Answer: If its a 12 oz can the answer should be 354 mm or 354.82 mm to be exact
Step-by-step explanation:
That's the correct answer.
help pls i don't know how to solve this
Answer:
x = - 8 and (- 8, 0 )
Step-by-step explanation:
Given a quadratic in standard form
y = ax² + bx + c ( a ≠ 0 )
Then the equation of the axis of symmetry which is also the x- coordinate of the vertex is
x = - [tex]\frac{b}{2a}[/tex]
y = x² + 16x + 64 ← is in standard form, with
a = 1 and b = 16, then
x = - [tex]\frac{16}{2}[/tex] = - 8
Equation of axis of symmetry is x = - 8
Substitute x = - 8 into the quadratic and evaluate for y
y = (- 8)² + 16(- 8) + 64 = 64 - 128 + 64 = 0
vertex = (- 8, 0 )
what is 3m < -12 if someone can please answer me
Answer:
Step-by-step explanation:
3m < - 12
m < - 12/3
m < - 4
Answer: -4
Step-by-step explanation:
3m < -12
3m/3 < -12/3
m = -4
In the following equation, what number represents the y-intercept?
y = 2x – 10
1) 0
2) -1
3) 2
4) 10
Answer:
4) 10
Step-by-step explanation:
The number with x is slope and the other number is y-intercept so it's 10
How do I find GD? Giving Brainly
Answer:
cut it in half, your answer is 11
Answer:
GD: 3.5
Step-by-step explanation:
You said CE is 7, and GD is half the length of CE. So based off of your answer for CE, GD equals 3.5
2. What is the domain of the function shown below?
у
A. -1 < x < 6
B. -1 < y = 6
C. -2 < x < 5
D. -1 3y = 6
Answer:
Option A is the correct answer
Step-by-step explanation:
[tex] - 1 \leqslant x \leqslant 6[/tex]
The domain of the function is -1 ≤ x ≤ 6 or x ∈ [-1, 6] option (A) -1 ≤ x ≤ 6 is correct.
What is a function?It is defined as a special type of relationship, and they have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range.
We have a given a graph of a function in the picture.
As we can see, the at point x = -1 graph starts, and it has dark dot which means function values exist at x = -1.
Similarly, at x = 6 the function value exist.
The domain of the function:
-1 ≤ x ≤ 6
Thus, the domain of the function is -1 ≤ x ≤ 6 or x ∈ [-1, 6] option (A) -1 ≤ x ≤ 6 is correct.
Learn more about the function here:
brainly.com/question/5245372
#SPJ2
Help don't answer if you don't know!!!!
Answer:
48
Step-by-step explanation:
Since it's a right angle, it's automadically 90 degrees so you just have to add 23+ 19 and subtract from 90.
23 + 19 = 42
90 - 42 = 48
What value of x satisfies this equation, x2−12=13?
Answer:x=5 and x=-5
Step-by-step explanation:
How many deli sandwiches did she make?
Please help me.
Answer: 6 sandwiches
Step-by-step explanation:
To get the amount of roast beef that Marissa used you would have to subtract 2 3/4 from 5...which is 2.25 pounds of beef that she used.
Then you would divide 2.25 by 3/8 which is 6... meaning Marisa made 6 sandwiches!
Help me! Best answer gets brainliest
Answer:
the answer is 24 but its a little hard to explain why, if u need me to i will
Step-by-step explanation:
Answer:
the answer is 20 Ft i just looked it up on quizz
Step-by-step explanation:
I need number 1 and 2 and 3 and 4 pleaseeeeer
Answer:
this is a test im not helping
Step-by-step explanation:
Cynthia wants to know the favorite band of all 5th graders in her school. She asks 10 of her friends from the 5th grade Art Club.
How would you describe this sample?
Question 8 options:
This is a valid sample since she only asked 5th graders.
This sample is valid because it is a Simple Random Sample.
This sample is invalid because it is a Systematic Random Sample.
This sample is invalid because it is a Convenience Sample.
I think this is invalid because it is a convenience sample. All of the 5th graders she asked were her friends, and they were all in the art club.
Need help.
Find the value of each variable.
Find the product of 0.75 x 2.1
Answer:
1.575
Step-by-step explanation:
0.75 x 2.1 = 1.575
Hope that helps!
Answer:
1.575
Step-by-step explanation:
Simplify each answer into a fraction, Please show work as well!
Answer: 1) 8/15 2) 2 4/9 3) -13/45
Step-by-step explanation:
1/5 + 1/3 = 6/30 + 10/30 = 16/30 = 8/15
2 1/9 + 1/3 = 19/9 + 3/9 = 22/9 = 2 4/9
1/9 - 2/5 = 5/45 - 18/45 = -13/45
What is the value of this expression?
{12÷(9−6)}+4×6
Answer:
12/9-6+(4)(6)
=12/3+(4)(6)
=4+(4)(6)
=4+24
=28
A 5m ladder reaches 4.2m up a wall. What angle does the ladder make with the wall
Answer:
57.14°
Step-by-step explanation:
A 5m ladder reaches 4.2m up a wall. What angle does the ladder make with the wall?
We solve the above question using the Trigonometric function of Sine
= sin theta = Opposite/Hypotenuse
Opposite = Length of the wall = 4.2m
Hypotenuse = Length of the ladder = 5m
Theta = Angle formed = x
Hence,
sin x = 4.2m/5m
x = arc sin(4.2m/5m)
x = arc sin(0.84)
x = 57.140119621°
Approximately = 57.14°
What is measure of the missing angle? HELP
(2x - 7) + ( x + 4) = 90°
2x + x - 7 + 4 = 90°
3x - 3 = 90°
3x = 90 + 3
3x = 93
x = 93/3
x = 31°
▪2x - 7
= (2 . 31) - 7
= 62 - 7
= 55°
▪x + 4
= 31 + 4
= 35°
#CMIIWTriangle ABC is an acute triangle. Two sides measure 5 and 7. What is the range of possible values for its third side?
Answer:
the desired range is 2 < t < 12.
Step-by-step explanation:
If the third side is 12 (the sum of 5 and 7), we don't really have a triangle, since the 5-unit and 7-unit sides add up to 12 and lie on the third side (of length 12).
Since triangle ABC is acute, all its angles are between 0 and 90 degrees. So the third side can be 12 but not greater. The smallest possible length of the third side is 2, since 5 + 2 = 7.
Thus, the desired range is 2 < t < 12.
Rob has 40 coins, all dimes and quarters, worth $7.60. How many dimes
and how many quarters does he have?
... please solve this using if systems of equations
seen you with ur ex