D, Each x value has one and only one y value.; This is because if an x-value repeats itself then it is not a function. You can test this on a graph by drawing a vertical line on it. If the vertical line intercepts the line more than once anywhere on the graph, then it is not a function.
Answer:
Each x value has one and only one y value.
Step-by-step explanation:
y = f(x) can be called a function if, and only if
f(a) = f(b) means that a = b.
That is, each x value has one and only one y value.
y = 4 - 6x
f(a) = f(b)
4 - 6a = 4 - 6b
6b = 6a
b = a
So the correct answer is:
Each x value has one and only one y value.
the slope of the line below is -3. Use the coordinates of the labeled point to find a point-slope equation of the line
Answer:
answer is A
Step-by-step explanation:
The length of a rectangle is 3 inches more than its width if the perimeter is 42 in find the dimensions of the rectangle
The problem uses the perimeter formula. P = 2w + 2l where w is the width, and l is the length.
We know the length (l) is 3 inches longer than it's width (or l = w+3). Substitute w +3 into Perimeter equation.
P = 2w + 2(w+3). That simplifies to P = 4w + 6.
Since P + 42, we have 42 = 4w +6.
With some simple algebra we find that w = 9 and l = 12.
Kelly has a spinner with 4 equal sections. She spins it 2 times. How many possible outcomes are in the sample space of the experiment?
Answer:
4 times 2 equals 8
Step-by-step explanation:
step by step think in your stomach.
Kelly has a spinner with 4 equal sections. so the outcome is 4 but she spins it 2 times so the outcome will be 4² = 16.
What are Permutation and combination?A permutation is an act of arranging the objects or elements in order. Combinations are the way of selecting objects or elements from a group of objects or collections, in such a way the order of the objects does not matter.
Given
Kelly has a spinner with 4 equal sections. She spins it 2 times.
How many possible outcomes are in the sample space of the experiment?Kelly has a spinner with 4 equal sections. so the outcome is 4 but she spins it 2 times so the outcome will be 4² = 16.
Let the outcome are (1, 2, 3, 4)
Then all the outcomes are
(1, 1)(1, 2)(1, 3)(1, 4)
(2, 1)(2, 2)(2, 3)(2, 4)
(3, 1)(3, 2)(3, 3)(3, 4)
(4, 1)(4, 2)(4, 3)(4, 4)
So the total outcome is 16.
More about the permutation and combination link is given below.
https://brainly.com/question/11732255
Write the recursive rule of the sequence -9, -3, 3, 9,... .
________________________________________
How is 10 2/3 written as a decimal to the nearest hundreth?
How is 10 2/3 written as a decimal to the nearest hundreth?
Answer is 10.2/3 because you round it to the hundreth?
How are rational numbers written as a decimal
i think it because when you rational X and witten the numer as a decimal hope i right just joke
example is rational number 4 12 then it say add and decimal the answer going to be 4.12
please help will give brainliest
Since the sum of the probabilities of all possible outcomes must be 100%, we can deduce the following:
Cooking in under 20 minutes: 10%Cooking between 20 and 30 minutes: 85%Cooking in more than 30 minutes: 5%In fact, the probabilities of cooking in less than 20 or more than 30 sum up to 15%, which means that the remaining outcome (i.e. cooking time between 20 and 30) must complete this probability to 15, and in fact 15+85=100.
That being said, all three answers are simply a combination of these three scenarios: let C be the cooking time, for aesthetic reasons:
[tex]P(C\geq 20) = P(20 \leq C \leq 30)+P(C\geq30) = 85\%+5\%=90\%[/tex]
[tex]P(20 \leq C \leq 30) = 85\%[/tex]
[tex]P(C\leq 30) = P(C\leq20)+P(20 \leq C \leq 30) = 10\%+85\%=95\%[/tex]
Niko needs 12 marshmallows and 8 graham crackers to make 4 s'mores how many marshmallows and crackers would he need to make 3 s'mores
HURRRY!!!
The average estimated hours a person in the United States spent playing video games per year from 2002 to 2012 were 71, 80, 82, 78, 80, 91, 107, 121, 125, 131, and 142. Use the statistics calculator to find the variance and population standard deviation. Round answers to the nearest whole number.
The variance of this data set is _______.
The population standard deviation for this data set is ________.
The variance of the set is 579
The population standard deviation for this data set is 24
Answer:
579
24
This is correct
Step-by-step explanation:
Translate and solve: eight more than the product of three and a number is -13
An investment firm wants to create a billboard that displays an enlarged $1,000,000 bill. The actual size of the bill is 2.61 inches by 6.14 inches. If the billboard is 48 feet wide, what's the scale of the bill to the billboard? A. 1′ = 8.71″ B. 1′ = 7.81″ C. 1″ = 8.71′ D. 1″ = 7.81′
We know how wide the billboard will be. Therefore, to know how much the original image should be enlarged, you must divide the final width of the billboard between the current width of the invoice.
We know both data, then we perform the operation:
48 feet /6.14 inches = 7.81 feet / inches .
Therefore the correct answer is option D. 1″ = 7.81′
For the bill to cover the billboard, the bill must be expanded by a factor of 7.81 feet long per inch long that has the original image.
Which exponential function is represented by the graph?
A) f(x) = 2(3^x)
B) f(x) = 3(3^x)
C) f(x) = 3(2^x)
D) f(x) = 2(2^x)
Answer:
C - 3(2^x).
.
which of the following are solutions to the quadratic equation? x^2 + 8x + 16 =7
E and F
note that x² + 8x + 16 is a perfect square which factors as ( x + 4 )², thus
(x + 4 )² = 7 ( take the square root of both sides )
x + 4 = ± √7 ( note plus or minus )
subtract 4 from both sides )
x = ± √7 - 4
x = √7 - 4 → E
x = - √7 - 4 → F
Answer:
E & F
Step-by-step explanation:
i got it right on Apeckxsss
The gateway arch in st louis was builtin 1965. It is the tallest monument in the
Answer:
St. Louis, Missouri, United States.
Step-by-step explanation:
it is the world's tallest arch, the tallest man-made monument in the Western Hemisphere
Solve the equation for y.
1) It is 35°C at your school and 90°F at home. Where is the temperature higher?
Answer:
It's hotter at school.
Step-by-step explanation:
The formula is (F - 32) x 5/9 = C
So 90F would be about 31 or 32 Celsius. I would recommend googling conversions like this in the future it's faster that way.
Four neighborhood children opened their own lemonade stand. The table shows the sales information for each stand, in glasses of lemonade. What was the largest fraction of sales of the stands' inventory?
A. 1⁄2
B. 4⁄7
C. 3⁄4
D. 7⁄12
Answer:
Option C is the answer.
Step-by-step explanation:
Given that four neighborhood children opened their own lemonade stand. The sales by the four were as follows:
A. 1⁄2
B. 4⁄7
C. 3⁄4
D. 7⁄12
We cannot compare these sales as such since they have different denominators.
To compare we find the Least common denominator for all the four first.
2,7,4,12 have lCD = 12(7) = 84
Now make equivalent fractions for all the four.
A. 1⁄2 = 42/84
B. 4⁄7 = 48/84
C. 3⁄4 = 63/84
D. 7⁄12 = 49/84
Now since denominator is the same we compare and find that
C =63/84 is the largest value.
Hence Option C is the answer.
A farmer has 113 sheep. 47 of them are males. How many more female sheep are there than make sheep?
113-47 = 66 female sheep
66-47 = 19
19 more female sheep than male sheep
The total number of sheep the farmer has is 113 sheep. Since 47 of them are males and you are solving for the number of female sheep, you can subtract 47 sheep from 113 sheep.
113 - 47 = 66
We have figured out that there are 113 total sheep, 47 male sheep, and 66 female sheep. The question is asking for how many more female sheep are there than male sheep, so subtract the number of male sheep from the number of female sheep.
female sheep - male sheep = answer
66 - 47 = 19
There are 19 more female sheep than there are male sheep.
FOR THE LOVE OF GOD HELP ME PLEASE!!The trinomial x2 – 3x – 4 is represented by the model.
What are the factors of the trinomial?
( x + 1) and (x - 4)
to factor the trinomial consider the factors of the constant term ( - 4) which sum to give the coefficient of the x-term ( - 3 )
these are - 4 and + 1
x² - 3x - 4 = (x - 4)( x + 1)
Solve for x: negative 7 over 6, multiplied by x minus 6 equals negative 48
36
49
−36
−49
-7/6*x-6=-48
X will equal -36.
I need a lot of help please help me. What is 128.34 as a mixed number in simplest form
There's seven-eighths of a gallon of chocolate ice cream in the freezer. There's also two-thirds of a gallon of vanilla ice cream. How much more chocolate ice cream is there than vanilla? A. 5⁄24 of a gallon B. 15⁄8 of a gallon C. 1⁄3 of a gallon D. 9⁄24 of a gallon
There's seven-eighths of a gallon of chocolate ice cream in the freezer. There's also two-thirds of a gallon of vanilla ice cream.
[tex]\frac{7}{8}[/tex] gallons of chocolate ice-cream
[tex]\frac{2}{3}[/tex] gallons of vanilla ice-cream
To find how much more chocolate ice cream is there than vanilla
We subtract vanilla from chocolate
[tex]\frac{7}{8} -\frac{2}{3}[/tex]
To subtract fractions we make the denominators same
least common denominator is 24
[tex]\frac{7*3}{8*3} -\frac{2*8}{3*8}[/tex]
[tex]\frac{21}{24} -\frac{16}{24}[/tex]
[tex]\frac{5}{24}[/tex]
[tex]\frac{5}{24}[/tex] of a gallon
In a parallel circuit, ET = 208 V, R = 39 kΩ, and XL = 24 kΩ. What is the power factor?
Answer:
Power factor is 0.8517 or 85.17%
Step-by-step explanation:
We are given that in a parallel circuit, [tex]E_{T}=208V[/tex], R=39kΩ and [tex]X_{L}[/tex]=24kΩ.
That means the circuit has a resistor element, inductor element in parallel with 208V applied across the terminal.
Let us find the current through resistor,
[tex]I_{R} =\frac{E_{T}} {R}= \frac{208}{39} =\frac{16}{3}=5.33[/tex] milli amps
And current through inductor,[tex]I_{L} =\frac{E_{T}} {X_{L}} =\frac{208}{24}=\frac{26}{3}=8.667[/tex] milli amps.
Hence total current, [tex]I_{T}= \sqrt{(I_{R})^2+(I_{T})^{2}} =\sqrt{5.33^{2}+8.667^{2}}=10.176[/tex]
Now power factor=[tex]\frac{I_{R}}{I_{T}}=\frac{5.33}{10.176}=0.8517[/tex]
Hence power factor is 85.17% or 0.8517
If their food and bevareges cost 25.30 and their is an 8% meals tax how much is the bill
Is (1,2) a solution of the system y>2x and x+y< 3
Answer: No it is not a solution
Why not? Because it doesn't make the first inequality true. Replace x with 1 and y with 2
y > 2x
y > 2*1 ... replaced x with 1
2 > 2*1 .... replaced y with 2
2 > 2 .... which is a false inequality statement since 2 is not larger than itself
Answer: NO!
Step-by-step explanation:
x = 1, y = 2
y > 2x
2 > 2(1)
2 > 2
False
Sine it already failed, no need to check the other equation.
CAN SOMEONE JUST PLEASE ANSWER THIS ASAP FOR BRAINLIEST!!
The square below has an area of 4 - 4x + x^2 square meters.
What expression represents the length of one side of the square?
Side length = ___ meters
Answer:
(2-x) or (x-2)
Step-by-step explanation:
Given that area of a square is 4-4x+x^2
We know that area of a square = side x side = side ^2
Hence side of a square = square root of area
To find side let us take square root of 4-4x+x^2
This can be written as 4-4x+x^2 = 2^2 -2(2)(x)+x^2
Recall the identity a^2-2ab+b^2 = (a-b)^2
Here a = 2 and b = x
Hence square root can be either 2-x if x<2 or x-2 if x>2
Answer is 2-x or x-2
What is the value of this expression? (11,982)^0
Answer: 1
Step-by-step explanation:
Anything to the 0 power is 1, with the exception of 0⁰ = 0
(1,000,000,000)⁰ = 1
[tex](\frac{2}{5})^{0} = 1[/tex]
(0.0012345)⁰ = 1
PLEASE HELP NEED ANSWER NOW!!!!
The inequality 5m − 7 > 16 holds true for all numbers (Less? or Greater?) than (3? or 4?) in the set {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}.
Final answer:
The inequality 5m - 7 > 16 is true for all numbers greater than 4 in the set {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}. After isolating m in the inequality, we find that m must be greater than 4.6. Since we're dealing with whole numbers, the inequality holds for numbers greater than 4.
Explanation:
To solve the inequality 5m − 7 > 16, we first isolate the variable m:
Add 7 to both sides of the inequality to get: 5m > 23.
Next, divide both sides by 5 to find the value of m: m > [tex]\frac{23}{5}[/tex], which simplifies to m > 4.6.
Since m must be greater than 4.6, and we are given a set of whole numbers, we are looking for all numbers greater than 4 in the set {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}. This means the inequality holds true for all numbers greater than 4 in the set.
Select an equivalent form of this equation: x/12 - 7 = x/4
To solve the equation x/12 - 7 = x/4, multiply all terms by 12 to eliminate the fractions. Simplify the equation and solve for x by isolating the variable.
Explanation:To solve for x, we need to find an equivalent form of the given equation. First, let's get rid of the fractions by multiplying all terms by 12 (the common denominator).
After multiplying, we get 12(x/12) - 12(7) = 12(x/4), which simplifies to x - 84 = 3x.
Next, subtract x from both sides of the equation to isolate the variable. This gives us -84 = 2x.
Finally, divide both sides of the equation by 2 to solve for x. The equation becomes -42 = x. Therefore, an equivalent form of the given equation is x = -42.
An attendant collected 45 coins from a parking meter. the value of the coins was $7.25, and there were 5 more quarters than nickels. which system models this situation?
a.) n+5=q and .05n +.25q=7.25
b.) q+5=n and .05n +.25q=7.25
c.) n+5=q and n+q=7.25
d.) n+5=q and 5n+2q=7.25
Answer:
a.) [tex]n+5=q[/tex] and [tex].05n +.25q=7.25[/tex]
Step-by-step explanation:
1. You have that there were 5 more quarters ([tex]q[/tex]) than nickels ([tex]n[/tex]. Therefore, you can express it as below:
[tex]n+5=q[/tex]
2. Keeping on mind that the value of the coins was $7.25 and that a quarter is 25 cents and a nickel is 5 cents, you can write the following expression:
[tex].05n +.25q=7.25[/tex]
3. Therefore, the answer is the option a.
3. Subtract 8.263 from 13.48. A. 21.743 B. 5.217 C. 5.783 D. 6.815