To find the coordinates of the midpoint
We will use the formula;
\((x_m,y_m)=(\frac{x_1+x_2}{2},\text{ }\frac{y_1+y_2}{2})\)x₁ = -4 y₁=7 x₂ = 0 y₂=-3
substituting into the formula
Xm = x₁+x₂ /2
=-4+0 /2
=-2
Ym= y₁+ y₂ /2
=7-3 /2
=4/2
=2
The coordinates of the midpoint m are (-2, 2)
graph the parabola x=1/2(y-2)^2-4. find and graph the vertex, focus, directrix, and focal chord endpoints.
1. Find the graph of the parabola attached below
2. Vertex (-4, 2) Focus (-7/2, 2) Directrix (x = -9/2) Endpoints (-7/2, 1) (-7/2, 3)
How do we find the vertex, focus, directrix, and focal chord endpoints or the parabola?For the parabola, x = 1/2(y-2)² - 4 we will use the equation x = 4p(y-k)² + h,
Vertex → (h, k)
In our given equation, (y - 2) → (y - k), so k = 2. The term on the rightmost side of our equation (-4) → h in the form, so we know h = -4. ∴ vertex (-4, 2).
focus → (h, k) = (-4, 2); P = 1/2
Parabola is symmetric around the x axis and so the focus lies a distance P, from the center, along the x axis.
∴ Focus is (-4 + p, 2)
(-4 + 1/2, 2) ⇒ (-7/2, 2)
directrix → x = d
Parabola is symmetric around the x axis and therefore the directrix is a line paralled to the y axis a distance away from the ceter (-4, 2) x coordinate.
∴ x = -4 - p ⇒ x = -4 - 1/2
x = 9/2
focal chord endpoints →
The focus of the parabola is (-7/2, 2).
The y-coordinate of the focus is 2, so the y-coordinates of the endpoints of the focal chord are 2 + 1 and 2 - 1, → 3 and 1.
Therefore, the endpoints of the focal chord are:
(-7/2, 3) and (-7/2, 1).
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PLEASE ANSWER ASAP. GIVING BRAINLIEST
Answer:
600
Step-by-step explanation:
Select the correct answer.
Answer:it might be A
Use the following information to answer the question. Bellei Extravecchio Balsamico Tradizionale is a very expensive brand of balsamic vinegar. A twelve ounce bottle typically costs two-hundred dollars or more. In a blind taste test, a group of food experts tasted three premium balsamic vinegars, with the most expensive one being Bellei Extravecchio Balsamico Tradizionale. When asked to pick the most expensive balsamic vinegar, 92 got it right and 76 got it wrong. Calculate the observed value of the chi-square statistic. Round to the nearest hundredth.
Answer:
The observed value of the chi-square statistic is 34.71
Step-by-step explanation:
Given the data in the question';
Calculate the observed value of the chi-square statistic
The chi-square statistic will be;
∑\(_{i}\)[ ( O\(_{i}\) - E\(_{i}\))² / E\(_{i}\) ]
here O\(_{i}\) is observed frequency of \(_{i}\)th class
E\(_{i}\) is expected frequency of \(_{i}\)th class
\(_{i}\) = 1, 2 which denote the class of food experts who guess correctly and who didn't guess correctly
so
∈\(_{i}\) = n × probability of not guessing correctly = 168 × 2/3 = 112
∈1 = n × probability of guessing correctly 168 × 1/3 = 56
so
∑\(_{i}\)[ ( O\(_{i}\) - E\(_{i}\))² / E\(_{i}\) ] = [ ( 92 - 56)² / 56 ] + [ ( 76 - 112)² / 112 ]
= 1296/56 + 1296/112
= 23.14 + 11.57
= 34.71
Therefore, the observed value of the chi-square statistic is 34.71
N+12=16 solve the equation
Answer: 4
Step-by-step explanation:
16 - 12
Answer:
= 4
Step-by-step explanation:
Anil’s age is a factor of 48. Seven years ago, his age was a multiple of 5. What is Anil’s age now?
On solving the provided question, we can say that Anil’s age is a factor of 48; prime factors of 48 = 1,2,3,4,6,12,24, => anil's age = 48 +7 = 55
what is prime factor?Any natural number other than 1 with just itself and the number 1 as its divisors is considered a prime factor. Actually, 2, 3, 5, 7, 11, and so on are some of the first prime numbers. an amount that has been multiplied to produce another amount. By dividing 15 by 3 and 5, for instance, we get 3 5 = 15. main elements: Prime factors include all factors that are prime but are not composite. A few prime factors of 30 are 2, 3, and 5. Only 2 and 3 are prime factors of 12, so listing 2 twice as 2 2 3 (or 22 3) is necessary to factorize 12. The sum of 2 + 3 is not 12.
Anil’s age is a factor of 48.
prime factors of 48 = 1,2,3,4,6,12,24,
anil's age = 48 +7 = 55
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The table shows the results for spinning the spinner 50 times. What is the
relative frequency for the event "spin a 4"?
It's 8/25.
The reason its 8/25 is because u gotta add or subtract.
The Green Goober, a wildly unpopular superhero, mixes
3 liters of yellow paint with
5 liters of blue paint to make
8 liters of special green paint for his costume.
Write an equation that relates
y the amount of yellow paint in liters, and
b the amount of blue paint in liters, needed to make the Green Goober's special green paint.
expressions that are equivalent to –24 1/2 + 16.15 – 4.
Answer: -12.35
Step-by-step explanation: Hope this helps!
Answer: Which expression is equivalent to −24 1/2+16.15−4?
B) 16.15-28.5 = -12.35
C) -28.5+16.15= -12.35
E) 12.15 - 24 1/4 = -12.35
Step-by-step explanation:
Ahmed is planning to cook his family dinner and needs to purchase several food items. He is able to purchase these items either at the local grocery store or the farmer's market. Given in the table are the items and their prices.
Grocery Store Farmer's Market
8 tomatoes for $13.20 10 tomatoes for $17.50
4 cups of mozzarella cheese for $4.60 3 cups of mozzarella cheese for $3.30
12 eggs for $3.00 7 eggs for $1.40
Part A: Choose one of the food items offered at the grocery store and the farmer's market and determine the unit price of the item at each location. Show all necessary work, including the name of the item chosen. (6 points)
Part B: Based on your answer in part A, which location offers a better deal? Explain
Part A: Grocery Store: unit price = $1.65 (Tomatoes)
Farmer's Market: unit price = $1.75
Part B: Grocery Store offers a better deal because the unit price is less.
How to determine the unit price of the item at each location?Unit price is defined as the price for one of something. For example, if 10 oranges cost $50, the unit price will be $50/10 = $5 i.e. $5 for one orange.
PART A:
Let's choose tomatoes
Grocery Store
8 tomatoes for $13.20
Unit price = $13.20/8 = $1.65
Farmer's Market10 tomatoes for $17.50
Unit price = $17.50/10 = $1.75
Part B:
The location that offers a better deal is Grocery Store. This is because the unit price is less.
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if someone answers dis properly imma give u brainliest
Answer:
no; 2.451904*10^3
Step-by-step explanation:
23.576*104=2451.904
to convert, move the decimal up to behind the first digit, and add tens accordingly
2451.904=2.451904*10^3
Not a Function
input
0
1
2
3
1
output
1
2
4
Function
Answer:
Not a Function
Step-by-step explanation:
there are 2 same inputs for different outputs
2. Simplify the following expression.
– 2(3x – 5) – 12x - 2
Answer:
-18x+8
Step-by-step explanation:
First you have to distribute the -2 to the 3x and the -5 in the parenthesis giving you -6x+10-12x-2.
Next you combine like terms which gives you -18x+8
What's the answer 1/5 divided by 4
Answer:
1/20
Step-by-step explanation:
1/5 divided by four is 1/20
5x4=20
Answer:
1/20
Step-by-step explanation:
1/5 / 4
cross multiply but first write 4/1
4 * 5 IS 20
1* 1 = 1
1/20
you're a chicken connect once to have a pizza party before spring break so they're ordering pizzas from Long Wong's there are 18 people in your checking account so you're ordering 9 pieces that are all the same cost because you want to have so much pizza your total before text me a number that 25, where the number represent an unknown digit what is the unknown digit how much does each pizza cost
Given: 9 pie is ordered and the cost before tax is 8#.25
To Determine: The unknown digits and the cost of each pizza
To achieve this, we would use the divisibility test for 9
The divisibilty test state that sum all the digit. it must be divisible by 9. Therefore
\(\begin{gathered} \frac{8+\#+2+5}{9} \\ \frac{15+\#}{9} \end{gathered}\)For that to be divisible by 9, then
\(\begin{gathered} 15+\#=18 \\ \#=18-15 \\ \#=3 \end{gathered}\)Hence, the unknown digit is 3
The price of a pizza is
\(\frac{83.25}{9}=9.25\)Hence, each pizza cost $9.25
find the equation of the line through point (4,-7) and parallel to y = -2/3x + 3/2.
Answer:
y = -2/3 x - 13/3
Step-by-step explanation:
y = -2/3 x + 3/2
y = mx + b
m = -2/3
The slope of the given line is -2/3. Parallel lines have equal slopes, so our line also has slope -2/3.
m = -2/3
y = mx + b
y = -2/3 x + b
Substitute the given point for x and y and solve for b.
-7 = -2/3 (4) + b
-21/3 = -8/3 + b
b = -13/3
Answer: y = -2/3 x - 13/3
Sam
is training for an upcoming
wrestling match. He trains for 3.5
hours each day Monday through
Wednesday. He trains for 2.5 hours
each day on Thursday and Friday.
How many hours will Sam train
if the event is 6 full weeks away?
(6-7)
A 105 hours
B 252 hours
C 52.5 hours
D 93 hours
Which expression is equivalent to 52(2x+1)?
Answer:
52 x 2 + 1 - 1 = 104
Adding some description to extend my answer since the equation was too short.
Hey there!
Just DISTRIBUTE
52(2x + 1)
52(2x) + 52(1)
52(2x) = 104x
52(1) = 52
Answer: 104x + 52 ☑️
Good luck on your assignment and enjoy your day!
~LoveYourselfFirst:)
Find the length of the line joining A (3,5) and B (1,3)
Answer:
2√2 units.
Step-by-step explanation:
To find the length of the line joining points A(3, 5) and B(1, 3), we can use the distance formula. The distance formula is given by:
d = sqrt((x2 - x1)^2 + (y2 - y1)^2)
Substituting the coordinates of points A and B into the formula, we have:
d = sqrt((1 - 3)^2 + (3 - 5)^2)
= sqrt((-2)^2 + (-2)^2)
= sqrt(4 + 4)
= sqrt(8)
= 2sqrt(2)
Therefore, the length of the line joining points A and B is 2√2 units.
= REAL NUMBERS Evaluating a quadratic expression: Integers Evaluate the expression when n=4. n2-5n+6
Answer:
-2
Step-by-step explanation:
I got it wrong and it told me negative 2 was the correct answer lol
HELP ME ASAP!!! YOU WILL BE BRAILIEST!!!!!!!
Answer:
See step by step.
Step-by-step explanation:
lets define the events:
A: cuban festival C: tropical Garden
B: street art show D: african festival
a) theoretically the probability is
\(P(A)=P(B)=P(C)=P(D)= \frac{1}{4} = 0.25 \\\)
This is 25% (for each one, equally)
b) The experimental probability is given by:
\(P(A)= \frac{32}{150} =0.2133\)
\(P(B)= \frac{38}{150} =0.2533\)
\(P(C)= \frac{35}{150} =0.2333\)
\(P(D)= \frac{45}{150} =0.3000\)
c) The theoretically probabilities are all equally, the experimental probabilities are close to 25% each one, but differ lightly each one, since is an experiment and the result is random.
Given f(x) = 1/2 (3 - x) ^ 2, what is the value of f(15)?
If Given f(x) = 1/2 (3 - x) ^ 2 , the value of f(15) is 72.
What is function?
In mathematics, a function is a relationship between two sets of elements, called the domain and the range, such that each element in the domain is associated with a unique element in the range. In simpler terms, a function is a set of rules that takes an input value and produces a corresponding output value.
The given function is:
f(x) = 1/2 (3 - x)²
To find the value of f(15), we need to substitute 15 for x in the function:
f(15) = 1/2 (3 - 15)²
Here, we subtract 15 from 3 to get -12 in the parentheses, and then we square it to get 144. We can simplify the expression further by multiplying 144 by 1/2, which gives us 72:
f(15) = 1/2 (144)
f(15) = 72
Therefore, the value of f(15) is 72.
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please complete the chart.
Verónica Ana y Luis pintan una barda y les pagan 300 cuánto dinero debería recibir cada quien
Si Verónica, Ana y Luis están pintando una barda y se les paga un total de 300 unidades monetarias (por ejemplo, dólares, pesos, etc.), para determinar cuánto dinero debería recibir cada uno, necesitamos más información sobre cómo se distribuye el trabajo entre ellos.
Si los tres contribuyen de manera equitativa y realizan la misma cantidad de trabajo, podrían dividir el pago de manera igualitaria. En ese caso, cada uno recibiría 100 unidades monetarias (300 dividido entre 3).
Sin embargo, si uno de ellos realiza más trabajo o tiene una mayor responsabilidad en la tarea, podría ser justo que reciba una porción mayor del pago. En ese caso, la distribución de los 300 unidades monetarias dependerá de un acuerdo previo entre ellos sobre cómo se divide el pago en función de la cantidad o calidad del trabajo realizado.
Es importante tener en cuenta que la asignación exacta de dinero puede variar dependiendo de las circunstancias y el acuerdo al que lleguen Verónica, Ana y Luis.
solve this equation by using the look inside method to rewrite the problem
-81 = 3(5 - 4r)
please help me find the formula of this table graph thingy
I NEED THE FORMULA, Y=??????
the topic Is graph and direct propotion btw
Answer:
| Drink (x ml) | 200 | 100 | 500| 1000|
| Sugar (y g) | 20 | 10 | 50 | 100 |
Step-by-step explanation:
Formula : y=k/x
Solve:
Before we find the answer chart =
| Drink (x ml) | 200 | 100 | 500| 1000|
| Sugar (y g) | 20 | ? | ? | ? |
20 = ? / 200
? = 10
Thus,
100/10 = 10
500/10 = 50
1000/10 = 100
So the chart now is:
| Drink (x ml) | 200 | 100 | 500| 1000|
| Sugar (y g) | 20 | 10 | 50 | 100 |
~lenvy~
What is the reciprocal of the divisor 5 1/5 divided by 1/10
The reciprocal of the divisor 5 1/5 divided by 1/10 is 10.
The reciprocal of the divisor: Reciprocal and division of fractions are two different methods. When the numerator and denominator of a fraction are interchanged, then it is said to be its reciprocal. Suppose a fraction is a/b, then its reciprocal will be b/a. A fraction is a numerical quantity that is not a whole number.
The reciprocal of the divisor 5 1/5 divided by 1/10
To the reciprocal of the divisor.
Equation: 5 1/5 divided by 1/10
1st: Flip the 1/10 to become 10/1
2nd: Change division to multiplication
New equation: 5.1/5.10/1
⇒ 50/5
⇒ 10.
The reciprocal of the divisor 5 1/5 divided by 1/10 is 10.
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Fill in the table using this function rule y= - 2x + 3
Step-by-step explanation:
you just have to put that value in place of x in the function.
don't be so lazy you a hole do it yourself
Please look at the pic and help!!
Answer:
4x² + 22x - 12
Step-by-step explanation:
A = bh/2
A = (4x - 2)(2x + 12)/2
A = (8x² + 48x - 4x - 24)/2
A = (8x² + 44x - 24)/2
A = 4x² + 22x - 12
Please please please please help