Answer:
angle w = 50; angle y = 130
Step-by-step explanation:
because of supp. angles, y + w = 180
12x-2+4x+6=180
16x+4=180
16x=176
x=11
to calculate, sub 11 in
w = 4(11) + 6 = 50
y = 12(11) - 2 = 130
a student committee has 6 membersâ4 undergraduate and 2 graduate students. a subcommittee of 3 members is to be chosen randomly so that each possible combination of 3 of the 6 students is equally likely to be selected. what is the probability that there will be no graduate students on the subcommittee?
The probability of choosing a subcommittee of 3 members with no graduate students is 0.2, or 20%.
The number of possible subcommittees that contain only undergraduate students can be calculated by choosing 3 members from the 4 undergraduate students. This can be done in (4 choose 3) = 4 ways.
The total number of possible subcommittees of three students that can be formed from the 6 members of the committee can be calculated by choosing 3 members from the 6 students. This can be done in (6 choose 3) = 20 ways.
Therefore, the probability that there will be no graduate students on the subcommittee is:
Number of subcommittees with only undergraduate students / Total number of possible subcommittees
= 4 / 20
= 1/5
= 0.2
So, the probability of choosing a subcommittee of 3 members with no graduate students is 0.2, or 20%.
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Please help, I’ll give brainliest!!!!!!!!!!!!
The ordered pairs from the graph of quadratic and linear equations are (-2, 7) and (2, -1)
what is graph of a quadratic and linear equationA graph of a quadratic equation is a parabolic curve that opens up or down, depending on the sign of the coefficient of the squared term. A general form of a quadratic equation is given by:
y = ax^2 + bx + c,
where a, b, and c are constants. The graph of this equation can be plotted by choosing a range of values for x and calculating the corresponding values of y.
A graph of a linear equation is a straight line. A general form of a linear equation is given by:
y = mx + b,
where m is the slope of the line and b is the y-intercept.
In this problem, the ordered-pairs will be the point in which they intersect with each other.
Looking carefully at the graph, the ordered pair will be at points
A = (-2, 7)
B = (2, -1)
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Luke sells 386 dollars worth of candy bars as part of a school club fundraiser. If the candy bars cost 297 dollars, what equation can we make to find out how much money Luke raised as the variable x ?
A triangle has a perimeter of 9x 6. the first side of the triangle has a length of 5x, and the second side has a length of 3x − 7. what is the length of the third side of the triangle? x 13 x − 1 8x − 7 17x − 1
The length of the third side of a triangle with perimeter 9x + 6 and measures of other two sides of the triangle is equal to option a. x + 13.
Perimeter of the triangle is equal to
= 9x + 6
First side of the triangle = 5x
Second side of the triangle = 3x - 7
Let 'n' be the third side of the triangle
perimeter of the triangle = 9x + 6
⇒ 5x + 3x - 7 + n = 9x + 6
⇒ n + 8x - 7 = 9x + 6
⇒ n = 9x -8x + 6 + 7
⇒ n = x + 13
Therefore, the third side of the triangle with given perimeter of the triangle is equal to option a. x + 13.
The above question is incomplete , the complete question is :
A triangle has a perimeter of 9x + 6. the first side of the triangle has a length of 5x, and the second side has a length of 3x − 7. what is the length of the third side of the triangle?
a. x + 13 b. x − 1 c. 8x − 7 d. 17x − 1
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After performing a statistical regression on a set of data, the value of the correlation
coefficient r was -0.2041. What does that imply about the data?
A:There is a strong negative non-linear correlation between the variables.
B:There is almost no correlation between the variables (the data is scattered).
C:There is a strong negative linear correlation between the variables.
D:There is a strong positive non-linear correlation between the variables.
E:There is a strong positive linear correlation between the variables.
Answer: B
Step-by-step explanation:
if r is close to 1 (or -1) it means the relationship is strong, -0.2041 is really close to 0 so the data is most likely scattered and the association is weak
Answer:
Strong
Step-by-step explanation:
edge 2023
The binomial (x+5) is a factor of x² + 8x + 15. What is the
other factor?
O (x+3)
O (x + 7)
(x+12)
O (x+13)
4X
Factor 2
Product
Factor 1
Reset
The binomial (x+5) is a factor of x² + 8x + 15 then the other factor is x+3.
What is quadratic equation?A quadratic equation is a second-order polynomial equation in a single variable x , ax²+bx+c=0. with a ≠ 0 .
Given that binomial (x+5) is a factor of x² + 8x + 15.
We need to find the other factor.
Let us solve x² + 8x + 15=0
x² + 5x +3x+ 15=0
x(x+5)+3(x+5)=0
(x+3)(x+5)
So the other binomial factor is x+3.
Hence, the binomial (x+5) is a factor of x² + 8x + 15 then the other factor is x+3.
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Let f(x)=-5x^(3)-8x^(2)-4x+3 and g(x)=3x^(3)-2x^(2)-8x-4.
Find (F-G)(X) Find(f-g)(-1)
The value of (f - g)(-1) is 5.
What is a function?A function is a relationship between inputs where each input is related to exactly one output.
Example:
f(x) = 2x + 1
f(1) = 2 + 1 = 3
f(2) = 2 x 2 + 1 = 4 + 1 = 5
The outputs of the functions are 3 and 5
The inputs of the function are 1 and 2.
We have,
f(x) = -5x³ - 8x² - 4x + 3
g(x) = 3x³ - 2x² - 8x - 4
Now,
(f - g)(x)
= f(x) - g(x)
= -5x³ - 8x² - 4x + 3 - (3x³ - 2x² - 8x - 4)
= -5x³ - 8x² - 4x + 3 - 3x³ + 2x² + 8x + 4
= -8x³ - 6x² + 4x + 7
Now,
(f - g) (-1)
Substitute x = -1.
= -8(-1)³ - 6(-1)² + 4(-1) + 7
= -8 x -1 - 6 - 4 + 7
= 8 - 6 - 4 + 7
= 8 - 10 + 7
= 15 - 10
= 5
Thus,
(f - g)(-1) = 5
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Evaluate the expression when x= -7 and y=2 .
X - 2y
Answer:-3
Step-by-step explanation: -7 -4
Simplify the following using the properties of exponents.
Answer:
Step-by-step explanation:
7/x^-8 = 7x^8
29. A racket is propelled upward from the top of a building 210 feet tall at an initial velocity of 112 feet per secon
The function that describes the height of the rocket in terms of time t is S(t) = - 16+2 + 112t + 210.
Determine the time at which the rocket reaches its maximum height.
a. 2.8 seconds
b. 3.5 seconds
C. 7 seconds
d. 5.6 secands
The time at which the rocket reaches its maximum height is 3.5 seconds. Therefore, b. is the correct answer.
What is function f(x)?An equation describing the relationship between the input (x) and the output (f(x)) is called the function f(x). Any equation that represents the connection between an input x and an output f is referred to as the function f(x) (x).
A function can be expressed as a graph or table in addition to the standard form of an equation. Functions can be stated using symbols and phrases in addition to equations. A function could be expressed, for instance, as "the square of x" or "f of x equals x squared."
Whatever form a function takes, it's critical to keep in mind that the input (x) always yields the same result (f(x)).
In the given question,
The maximum height of the rocket is achieved at the point when the velocity of the rocket is 112 feet. This can be determined by taking the derivative of the function S(t).
S'(t) = 112
Therefore, when S'(t) = 112, t = 3.5.
This means that the rocket reaches its maximum height at t = 3.5 seconds.
Therefore, the time at which the rocket reaches its maximum height is 3.5 seconds.
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The formula for the area of any triangle is a equals 1/2. The carpenter is actually using the following expression to represent the area of a triangle eight A= (1/2) (B)(B +5) which statement best matches the carpenters triangle
Answer:
The statement "A = (1/2) (B)(B + 5)" represents the area of a triangle, where B is the base of the triangle and (B + 5) is the height. This formula is used by the carpenter to calculate the area of a triangle with a given base and height.
Step-by-step explanation:
3-83. Challenge Problem! Find the dimensions of the generic rectangle below. Then write an equivalency
statement (length width = area) of the area as a product and as a sum.
x²
3x
-5x
-15
The dimensions are 5 units each
The area of the rectangle is 25 units
How to determine the dimensions
It is important to note that algebraic expressions are defined as expressions that are composed of variables, terms, cofficients, constants and factors.
They are also described as expressions with mathematical operations.
From the information given, we have that;
x² - 5x + 3x - 15
To solve the quadratic equation, let us use the factorization method
Group the values in pairs
(x² - 5x) + (3x - 15)
factor the terms
x(x -5) +3(x - 5)
Then, x + 3 = 0
x = -3
And x - 5 = 0
x =5
But area of a rectangle is;
= Length× width
= 5 × 5
= 25 square units
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5 1/2 ounce of mango has 17 1/2 grams of sugar and 4 ounces of pineapple has 25 grams of sugar
If 5 1/2 ounce of mango has 17 1/2 grams of sugar and 4 ounces of pineapple has 25 grams of sugar, We will be having 7 grams of sugar for one ounce of mango and 6 1/4 grams of sugar for one ounce of pineapple.
The problem states that we have 5 1/2 ounces of mango with 17 1/2 grams of sugar, and 4 ounces of pineapple with 25 grams of sugar. We are asked to determine the grams of sugar per ounce for each type of food. To determine the grams of sugar per ounce for each type of food, we can use the following calculations:
For mango: 5 1/2 ounces is equivalent to 11/2 + 1/2 = 2 ounces + 1 ounce/2, so we have 17 1/2 grams of sugar in 2 1/2 ounces of mango. To find the grams of sugar per ounce, we can divide 17 1/2 by 2 1/2, which gives us 7 grams of sugar per ounce of mango.
For pineapple: 4 ounces of pineapple has 25 grams of sugar. To find the grams of sugar per ounce, we can divide 25 by 4, which gives us 6 1/4 grams of sugar per ounce of pineapple.
Therefore, the grams of sugar per ounce for mango and pineapple are 7 and 6 1/4, respectively.
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Complete question is:
5 1/2 ounce of mango has 17 1/2 grams of sugar and 4 ounces of pineapple has 25 grams of sugar. Determine the grams of sugar for ounce for each type of food.
A survey was done that asked employees to indicate whether they ride a bicycle or drive to work, and whether they live up to 5 miles or more than 5 miles from work. What is the probability that a randomly selected worker lives more than 5 miles from work and rides their bicycle? Enter your answer, rounded to the nearest whole percent, in the box
The probability that a randomly selected worker lives more than 5 miles from work and rides their bicycle is 57%.
To calculate the probability that a randomly selected worker lives more than 5 miles from work and rides their bicycle, we need to use the data from the survey. Let's assume that the survey results are summarized in the following table (attached) :
From this table, we can see that the probability of a worker living more than 5 miles from work is 35%. We can also see that the probability of a worker riding their bicycle is 50%, and the probability of a worker living more than 5 miles from work and riding their bicycle is 20%.
To calculate the probability that a randomly selected worker lives more than 5 miles from work and rides their bicycle, we can multiply the probabilities of these two events:
P(Lives > 5 miles and Rides Bicycle) = P(Lives > 5 miles) x P(Rides Bicycle | Lives > 5 miles)
= 35% x (20%/35%)
= 0.5714 or 57% (rounded to the nearest whole percent)
Therefore, the probability that a randomly selected worker lives more than 5 miles from work and rides their bicycle is 57%.
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Determine if events A and B are independent.
P(A)=1/5, P(B)=7/20, P(A and B)= 7/100. The events A and B are independent.
What is independent probability?Two events are independent if the occurrence of one event does not affect the chances of the occurrence of the other event. The mathematical formulation of the independence of events A and B is the probability of the occurrence of both A and B being equal to the product of the probabilities of A and B (i.e., P(A and B).
1) P(A)=1/5, P(B)=7/20, P(A and B)= 7/100
Here, P(A and B)= P(A)×P(B)
= 1/5 × 7/20
= 7/100
So, the events A and B are independent.
2) P(A)=13/20, P(B)=13/20, P(A and B)= 169/400
Here, P(A and B)= P(A)×P(B)
= 13/20 × 13/20
= 169/400
So, the events A and B are independent.
3) P(A)=7/10, P(B)=2/5, P(A and B)= 21/100
Here, P(A and B)= P(A)×P(B)
= 7/10 × 2/5
= 14/50
So, the events A and B are not independent.
2) P(A)=1/5, P(B)=1/5, P(A and B)= 1/25
Here, P(A and B)= P(A)×P(B)
= 1/5 × 1/5
= 1/25
So, the events A and B are independent.
Therefore, options 1, 2 and 4 are correct answers.
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A TV at £800 plus VAT at 20%
What is the total cost of the TV
Answer:
it will be £960
Step-by-step explanation:
first £800×20/100
simplify £8×20
£160= VAT
Total cost=VAT+ normal cost
£160+£800
=£960
A gardener made a scale drawing of a lawn with a scale factor of 1:15. The dimensions of his drawing are 6 inches long by 3 inches wide. his partner plans to make another scale drawing of the lawn, but with a scale factor of 1:5. What are the dimensions of his scale drawing?
A. The length is 1 inch and the width is 2 inch
B. The length is 2 inch and the width is 1 inch
C. The length is 9 inch and the width is 18 inch
D. The length is 18 inch and the width is 9 inch
D. The length is 18 inches and the width is 9 inch
What is a scale factor?
A scale factor resembles a unit scale in several ways. It is a ratio that assesses the relationship between scale and real dimensions. Because it doesn't provide any specified units, it differs.
It is given that the scale factor of the gardener is 1:15.
The dimensions of his drawing are 6 inches long by 3 inches wide.
Therefore the original dimensions are 6*15= 90 inches.
3*15= 45 inches.
The scale of his partner is 1:5.
So, we have to divide the original dimensions by 5.
The dimensions of the scale drawing are 90/5= 18 inches long
45/5=9 inches wide.
Therefore length is 18 inches and the width is 9 inches.
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hich statements describe the length of the sides of an isosceles right triangle if one leg is 6√2 feet? Select all that apply.
The length of the other leg is 6 feet.
The length of the hypotenuse is 12 feet.
The length of the hypotenuse is 6 feet.
The length of the other leg is 6√2 feet.
The correct statements are:
The length of the other leg is 6√2 feet.
The length of the hypotenuse is 12 feet.
What is Pythagoras theorem?The Pythagoras theorem which is also referred to as the Pythagorean theorem explains the relationship between the three sides of a right-angled triangle. According to the Pythagorean theorem, the square of the hypotenuse is equal to the sum of the squares of the other two sides of a triangle.
Given:
One leg of an isosceles triangle is 6√2 feet.
As, we know isosceles triangle two of its sides equal in length then the other side can be 6√2 feet.
Now, using Pythagoras theorem
H² = P² + B²
H² = (6√2)² + (6√2)²
H² = 72 + 72
H² = 144
H= 12 units
The statements that applies here are:
The length of the other leg is 6√2 feet.
The length of the hypotenuse is 12 feet.
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Answer:
The answer is B and D
Step-by-step explanation:
I took the test.
let me know if you would like an explanation down in the comments!
What number would correctly replace the G?
relationship btw three set( in a market survey 100traders sell fruit, 40sell Apple, 46 sell Orange, 50 mango, 15sell Apple and Mango, 10 sell the three
fruit draw a venn diagram
Number of student that sell mango and orange
Answer:
7 traders sell oranges and mangoes alone.
Step-by-step explanation:
(21 + 4 + 5 + 10 + x + 35 – x + 32 – x = 100)
(107 – x = 100)
(x = 107 – 100 = 7)
Therefore, 7 traders sell oranges and mangoes alone.
(b) (312_{four} + 52_{x} = 96_{ten})
(312_{4} = 3 times 4^{2} + 1 times 4^{1} + 2 times 4^{0})
= (48 + 4 + 2 = 54_{10})
(52_{x} = 5 times x^{1} + 2 times x^{0})
= ((5x + 2)_{10})
(therefore 54 + (5x + 2) = 96)
(56 + 5x = 96 implies 5x = 96 – 56 = 40)
(x = 8)
(therefore 312_{4} + 52_{8} = 96_{10})
PLSSS HELP!!
Which cross-sections are possible in BOTH cylinders and cones? Choose ALL that apply.
A. circle
B. oval
C. half-oval
D. rectangle
E. triangle
A. Circle
B. Ellipse (which can resemble an oval)
how many modes are there in the following data set, which represents the number of days worked in october for 10 programmers of a software company? data set: 7,20,22,17,19,15,27,30,14,7
To mode of given data set of number of days worked in october for 10 programmers of a software company is 7 and 14.
The mode of a data set is the value that appears most frequently. In this case, we can see that both 7 and 14 appear twice, while all other values appear only once. Therefore, there are two modes in this data set: 7 and 14.
To solve mathematically, we can use the mode formula:
mode = value with the highest frequency
In this case, we have two values with the highest frequency, which are 7 and 14. Therefore, the mode of given data set is 7 and 14.
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The zeros of a quadratic function are x = 2 and x = -3. Write an
equation of the quadratic function.
The equation of the quadratic function is x² + x - 6
How to determine the quadratic functionNote that functions are equations, laws or expressions showing the relationship between two variables.
These variables are;
the dependent variableIndependent variableFrom the information given, we have that;
x = 2 and = -3 are the roots
Then,
(x -2)(x + 3)
expand the bracket, we get;
x² + 3x - 2x - 6
collect the like terms, we have;
x² + x - 6
Hence, the equation is x² + x - 6 = 0
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do you believe that this conjectures "all numbers coming from the question p=n²-n+41 are prime numbers"?
Answer: No
Step-by-step explanation:
Valid only for numbers less than 40.
P(40) = 412 which is not a prime number
Select all factors of the expression 7x³ - 28xy²
Answer:
7 and 7x
Step-by-step explanation:
We distributing these factors are the only that can make sense
4. The table shows the number of beads used to make a necklace. Ginger wants to make a smaller necklace using the same ratio of pink to white beads. How many different necklaces could Ginger make? How do you know?
The number of different necklaces that Ginger can make, with the same ratio of pink to white beads is 5 necklaces.
How to find the number of necklaces ?To find the number of necklaces, find the smallest equivalent ratio of pink to white beats used to make the necklace.
Pink beads : White beads
30 : 35
( 30 / 5 ) : ( 35 / 5 )
6 : 7
To find the find the number of beads, divide the number of pink beads available by the number of pink beads in the ratio:
= 30 / 6
= 5 necklaces
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rulers are sold in boxes of 12
protractors are sold in boxes of 8
A teacher would want to buy the same number of rulers and protractors
work out the smallest number of boxes of each iteam he shoould by
ruler boxes?
protractor boxes?
Answer:
Step-by-step explanation:
Find the GCF:
12, 24, 36
8, 16, 24, 32
GCF is 24
The lowest amount of boxes the teacher could buy would be 2 boxes of Rulers and 3 boxes of Protractors. I hope this helped
1.
f(x) = x² - 8x + 17
The roots of the quadratic equation are -
{x} = 4 ± i(√2/2)
What is the general form of a quadratic equation?The general form of a quadratic equation is -
y = f(x) = ax² + bx + c
Given is the quadratic equation as -
f(x) = x² - 8x + 17
We can write the roots of the equation as -
x = {- b ± √(b² - 4ac)}/2a
x = {8 ± √(64 - 68)}/2
x = {8 ± i√2}/2
x = 4 ± i(√2/2)
Therefore, the roots of the quadratic equation are -
{x} = 4 ± i(√2/2).
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NEED THIS ASAP……………
……………..
The solution of the function - 6x + 14 = - 2ˣ + 6 is 2. The required graphs are given below.
Solving a function:We can solve the given function by adding or subtracting the same integer on both sides. Here adding or subtracting the same number on both sides doesn't change the condition of the function. In end-use trial and error mothed to find the value of the variable 'x'
Here we have
f(x) = - 6x + 14 and g(x) = - 2ˣ + 6
The solution of - 6x + 14 = - 2ˣ + 6 can be calculated as follows
=> - 6x + 14 = - 2ˣ + 6
=> - 6x + 8 = - 2ˣ
=> - 6x + 8 = - 2ˣ
=> - 6x + 2ˣ = - 8
By using the trial and error method
At x = 2
=> - 6(2) + 2² = -8
=> - 12 + 4 = -8
Therefore,
The solution of the function - 6x + 14 = - 2ˣ + 6 is 2. The required graphs are given below.
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anyone knows the answer for this?
The blank in the statement should be filled in with "ΔVYZ." which is proven by the definition of congruence.
What is a Triangle?Triangle is defined as a basic polygonal shape of a triangle that has three sides and three interior angles. It is one of the fundamental shapes in geometry and is represented by the symbolΔ.
Since S, T, and U are midpoints in ΔVYZ, it follows that:
ST is a median of ΔVYZ, meaning it bisects the side VZ into two equal parts.
TU is a median of ΔVYZ, meaning it bisects the side VY into two equal parts.
SV is a median of ΔVYZ, meaning it bisects the side YZ into two equal parts.
Using the definition of congruence, two triangles are congruent if their corresponding sides are equal in length and their corresponding angles are equal in measure. Since medians bisect their corresponding sides, it follows that all three pairs of corresponding sides in ΔYST, ΔTUZ, and ΔSVU are equal in length.
Furthermore, since the medians divide the triangle into two smaller triangles that are similar to the original triangle, it follows that the corresponding angles in ΔYST, ΔTUZ, and ΔSVU are equal in measure.
Therefore, ΔYST ≅ ΔTUZ ≅ ΔSVU ≅ ΔVYZ.
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