Answer:
Step-by-step explanation:
200/250 =0.8
25.5x0.8 =20.4
answer=20.4
determine whether the following statements are true and give an explanation or counterexample. a. all polynomials are rational functions but not all rational functions are polynomials.
The given statement: " all polynomials are rational functions but not all rational functions are polynomials." is true; its counterexample will be: Not all polynomials are rational functions but all rational functions are polynomials.
What is a polynomial?Polynomial refers to an algebraic equation that has more than two terms, particularly the accumulation of numerous phrases that each include a different power of the same variable (s).
Now,
A polynomial of degree n has at most n real zeros. The degree of a polynomial function determines the end behavior of its graph. A rational function is a function of the form: [tex]f(x)=\frac{P(x)}{Q(x)}, Q(x) \neq 0[/tex] and P(x) and Q(x) are both polynomials.A function that cannot be written in the form of a polynomial is not a rational function.Further,
A counterexample refers to an idea or a statement that contradicts an idea or a theory.Basically, we can infer that it is the negation of a statement.For the given statement, the negation would be given as: Not all polynomials are rational functions but all rational functions are polynomials.Hence, The given statement: " all polynomials are rational functions but not all rational functions are polynomials." is true; its counterexample will be: Not all polynomials are rational functions but all rational functions are polynomials.
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A set of 10 scores has ss = 90. if the scores are a sample, the sample variance is ____, and if the scores are a population, the population variance is ____.
If the scores are a sample, the sample variance is 10, and if the scores are a population, the population variance is 9.
A set of 10 scores has SS = 90.
The formula in getting the population variance is
σ² = SS / N
where SS is the sum of squared deviation and N is the number of population.
Therefore, the population variance is
σ² = 90 / 10
σ² = 9
The formula in getting the sample variance is
σ² = SS /( n - 1)
where SS is the sum of squared deviation and n is the number of samples.
Therefore, the sample variance is
σ² = 90/ (10 - 1)
σ² = 90 / 9
σ² = 10
Therefore, if the scores are a sample, the sample variance is 10, and if the scores are a population, the population variance is 9.
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Bob's Gift Shop sold 500 cards for Mother's Day. One salesman, Jacob, sold 4% of the cards sold for Mother's Day. How many cards did Jacob sell?
Answer: Jacob sold 20 cards
Step-by-step explanation:
Write the first six terms of the arithmetic sequence with the first term, a1, and common difference, d.
a1 = 2, d=3
Answer:
2.5.8.11.14.17
Step-by-step explanation:
Start from 2 and add 3 every time
Find the rate of change between the following points. (-1, -4) (3, 1)
Answer:
Step-by-step explanation:
rghhgrwfgethyrtegrgrfrgtgrgrtt4gt
The circle below is centered at (4,-1) and has a radius of 3. What is it’s equation?
The equation of the area of the circle (x - 4)^2 + (y + 1)^2 = 9, that is, option B.
The standard form of an equation of a circle is (x - h)^2 + (y - k)^2 = r^2
where, r = radius of the circle and (h, k) are the coordinates of the center of the circle.
Here, we are given that a circle is centered at (4,-1) and has a radius of 3.
Thus, r = 3
h = 4
and k = -1
Therefore, the equation of the circles will be-
(x - 4)^2 + (y - (-1))^2 = 3^2
(x - 4)^2 + (y + 1)^2 = 9
Thus, option B, (x - 4)^2 + (y + 1)^2 = 9 is the correct option.
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A customer wanted to purchase a video game and realized that they were short $3.96 to be able to pay. Which value is the opposite of being short $3.96?
Using the absolute value function, the value that is the opposite of being short $3.96 is: x + 3.96.
What is the absolute value function?The absolute function is defined by:
|x| = x, x ≥ 0.|x| = -x, x < 0.It measures the distance of a point x to the origin, that is, |2| = |-2| = 2.
For this problem, the number is of $3.96, that is:
|x| = 3.96.
Hence:
Short of $3.96 means that x = -3.96.The opposite is the other solution, of x = 3.96.More can be learned about the absolute value function at https://brainly.com/question/24734454
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Answer:
Impressive explanation
Exactly what I needed
I double checked this and it's fine
Better than from a teacher!
Step-by-step explanation:
Impressive explanation
Exactly what I needed
I double checked this and it's fine
Better than from a teacher!
58 divided by 5,350 (working out please!)
When we divide 58 by 5,350, the value is 0.108411.
How to compute the value?The information is that we should divide 58 by 5,350.
It should be noted that we cab reduce to the lowrst term before dividing. This will be:
= 58/5350
= 29/2675
Therefore, we can then convert the value to decimal and this will be:
= 29/2675
= 0.108411
The division is 0.108411.
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The diameter of the most popular brand of flying disc used in disc golf measures between 8 and 10 inches. Find the range of possible circumferences and areas for these flying discs to the nearest tenth.
The range of possible circumferences and areas for these flying discs are 25. 24 inches to 31. 42 inches and 50. 27 square inches and 78. 55 square inches respectively.
How to determine the circumferenceThe formula for circumference of a circle is expressed as;
Circumference = πd
Where;
π takes the value 3. 142d is the diameterCircumference for diameter of 8 inches
Circumference = 3. 142 × 8 = 25. 14 inches
Area = 1/ 4 πd² = 1/ 4 × 3. 142 × 8²
Area = 50. 27 square inches
Circumference for diameter of 10 inches
Circumference = 3. 142 × 10
Circumference = 31. 42 inches
Area = 1/ 4 × 3. 142 × 10²
Area = 78. 55 square inches
Thus, the range of possible circumferences and areas for these flying discs are 25. 24 inches to 31. 42 inches and 50. 27 square inches and 78. 55 square inches respectively.
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Solve.
3 The Ramirez family drives 8 hours each day for 3 days.
They drive 457 miles the first day, 468 miles the
second day, and 473 miles the third day. How many
miles each hour do they drive on average for the
whole trip?
Show your work.
Two friends are playing with water balloons. They each start at the bucket of balloons and walk in opposite directions before tossing their balloons at each other. Joy walked 12 steps forward, and Shaunte walked 8 steps backwards. Which expression correctly represents the distance between the friends?
12 + 8 = 20 steps
12 + |−8| = 20 steps
|−12| + 8 = 20 steps
|−12| + |−8| = 20 steps
Answer:Two friends are playing with water balloons. They each start at the bucket of balloons and walk in opposite directions before tossing their balloons at each other. Joy walked 12 steps forward, and Shaunte walked 8 steps backwards. Which expression correctly represents the distance between the friends? The answer is b 12 + -8=20
Step-by-step explanation:
PLEASE WHAT IS THE LIMIT HELP IM SOBBING CRYING THANKS
Answer:
Step-by-step explanation:
Click this link to see the answer pls. I cannot explain it on this little square box.
i swear, just click it.
https://giphy.com/gifs/trolli-basketball-weirdly-awesome-sour-brite-slam-STcNf6rLHyMA8
what is the answer of 20 plus 12
Answer:
32
Step-by-step explanation:
PLSSS HELP IF YOU TURLY KNOW THISS
Answer:
answer [-19]d + [4]p +[2]
Answer:
[tex]-9d-4p-6-10d+8=-19d-4p+2[/tex]
Step-by-step explanation:
[tex]-9d-4p-6-10d+8[/tex]
[tex]=-9d-10d-4p-6+8[/tex]
[tex]=-19d-4p-6+8[/tex]
[tex]=-19d-4p+2[/tex]
So the answer would be -19d-4p+2
hopefully this helps you ~
I'll give brainly. need correct answers only
Answer here:
Explanation here:
The variable y varies directly with the variable x.
If the value of x is 14, what is the value of y?
Given that the variable y varies directly with the variable x. If the value of x is 14, the value of y will be 21.
If the value of x is 14, what is the value of y?Proportional relationships are relationships between two variables where their ratios are equivalent.
A direct variation is expressed;
a ∝ b then a = kb
Where k is the proportionality constant.
Given the data in the question
a = 10b = 15k = ?First, we determine the proportionality constant.
a = kb
15 = k × 10
k = 15/10
k = 3/2
Now, if the value of x is 14, then the value of y will be;
a = kb
y = kx
y = (3/2) × 14
y = ( 3 × 14 )/2
y = 42/2
y = 21
Given that the variable y varies directly with the variable x. If the value of x is 14, the value of y will be 21.
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Answer:
Value of y is 21, when x is 14.
Step-by-step explanation:
Now we have to,
→ find the value of y when x is 14.
Forming the formula,
→ k × 2 = x
→ k × 3 = y
Let's complete the given table,
→ k × 2 = x, k × 3 = y
→ 1 × 2 = 2, 1 × 3 = 3
→ 2 × 2 = 4, 2 × 3 = 6
→ 3 × 2 = 6, 3 × 3 = 9
→ 4 × 2 = 8, 4 × 3 = 12
→ 5 × 2 = 10, 5 × 3 = 15
→ 6 × 2 = 12, 6 × 3 = 18
→ 7 × 2 = 14, 7 × 3 = 21
Then the table will look like,
|| x || y |||| 2 || 3 |||| 10 || 15 |||| 14 || 21 ||Hence, y is 21 when x is 14.
Help me please, I need to pass this class
Answer:
Step-by-step explanation:
20
Answer: KL IS 3 + 9 THEN 5 MINUS NINE
Step-by-step explanation: FIND KL
The sum of four and a number sobtracted dron 7
Hello can somone answer this quickly please ill give brainly
Answer:
B
Step-by-step explanation:
23/1000
->What do you do in division you move the decimal to the left
by looking at the zeros in the denominator.
-> 3 zero so move the decimal to the right 3 times
so the answer will be 0.023
Answer Is B as 23/100 is also 0.23 (Two Zeros Shift)
- If This Answer Helped You Please Mark As Brainliest
10. Circle the irrational number in the list below.
√196
7.27
5/9
√15
Andy and his friend sam were walking along the road together. andy had a big bag of marbles. unfortunately the bottom of the bag split and all the marbles spilled out. poor andy! one third of the marbles rolled down the slope too quickly for andy to pick them up. one sixth of all the marbles disappeared into the rain-water drain. andy and sam picked up all they could but half of the marbles that remained nearby were picked up by other children who ran off with them. andy counted all the marbles he and sam had rescued. he gave one third of these to sam for helping him pick them up. andy put his remaining marbles into his pocket. there were 14 of them. how many marbles were there in andy's bag before the bottom split?
The total number of marbles that were there in Andy's bag before the bottom split are 84 marbles.
Let, the total number of marbles Andy have in the bad in beginning = x
One third of the marbles rolled down the slope too quickly for Andy to pick them up. So we can write,
Total number of marbles Andy have now = x - (x/3)
One sixth of all the marbles disappeared into the rain-water drain. So, So we can write,
Total number of marbles Andy have now = x - (x/3) - (x/6) = (x/2)
Half of the marbles that remained nearby were picked up by other children who ran off with them. So, we can write
Total number of marbles Andy have now = (x/2) - (x/4) = (x/4)
Andy gave one third of these to Sam for helping him pick them up. So,
Total number of marbles Andy have now = (x/4) - (x/12) = (x/6)
Now, we have given that Andy have 14 marbles in the end in his pocket. On comparing it with above equation, we get
(x/6) = 14
⇒ x = 84
The total number of marbles that were there in Andy's bag before the bottom split are 84 marbles.
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The vertex of this parabola is at (4,-3). When the x-value is 5, the y-value is -6. What is the coefficient of the squared term in the parabola’s equation?
In parabola , the coefficient of the squared expression is -3..
What on a graph is a parabola?
Drawing a parabola for the quadratic function f(x) = ax2 + bx + c results in a U-shaped curve. When an is smaller than zero, the parabola's graph is downward (or opens downward). When the value of an is greater than 0, the parabola's graph ascends (or opens up).Parabola equation with a vertex at (h, k) is given by y = a(x - h)^2 + k
For the give parabola, y = a(x - 4)^2 - 3
y = a(x^2 - 8x + 16) - 3
At (5, -6)
-6 = a((5)^2 - 8(5) + 16) - 3 = a(25 - 40 + 16) - 3 = a - 3
a = -6 + 3 = -3
Therefore, the coefficient of the squared expression is -3..
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9589+5319 simplified using decimal form
Answer:
149.08
Step-by-step explanation:
9,589+5,319= 14,908
14,908 in decimal form is 149.08
therefore, your answer is 149.08
say whether the lines AB and CD are parallel in the following diagrams, with reasons
Answer:
AB and CD are parallel lines
Step-by-step explanation:
Parallel lines are the lines that do not intersect or meet each other at any point in a plane which ,ezns AB and CD are parallel
Round answers to hundredths (to the nearest cent).
4) $24 for 5 lbs. of chedder cheese
Answer:
$4.80. Per lbs
Step-by-step explanation:
Answer:
4.80$
Step-by-step explanation:
24 divided by 5 is 4.8
Simplificación the -49/88
We can't simplify -49/88 any further because it's already reduced to the least common factor in the numerator and denominator.
We'll leave it as it is;
-49/88
[tex]--------------------------------[/tex]
No podemos simplificar más -49/88 porque ya está reducido al mínimo común divisor en el numerador y el denominador.
Lo dejaremos como está;
-49/88
Nicole cleans six of the ten windows in her house. Her mom said she needs to wash 3/5 of the windows. Has Nicole cleaned enough windows? Explain your answer.
Answer:
Yes she has cleaned enough windows.
Step-by-step explanation:
If you simplify 6/10 you get 3/5
i need help ! pls ive been having a hard time with it ive looked at it 100 times
Answer:
6.4 (or round to 6 for one digit)
Step-by-step explanation:
Look up "distance between two points formula"
Answer: MN≈6.4
Step-by-step explanation:
[tex]M(-3,-1)\ \ \ \ N(2,3)\\[/tex]
[tex]\boxed {MN=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2} }[/tex]
[tex]x_1=-3\ \ \ \ x_2=2\ \ \ \ y_1=-1\ \ \ \ y_2=3\\MN=\sqrt{(2-(-3))^2+(3-(-1))^2}\\ MN=\sqrt{(2+3)^2+(3+1)^2}\\ MN=\sqrt{5^2+4^2}\\ MN=\sqrt{25+16} \\MN=\sqrt{41} \\MN\approx6.4[/tex]
How to find the nth term in the sequence
3,6,9,12
The n th term of the series is 3n where n is the term of reference
As we can see that there is constant difference in the terms
12-9=3
9-6=3
6-3=3
We are made sure that it is the arithmetic progression
Common difference is the difference that is constantly subtracted or added to each term after the first term
Thus the common difference 'd' is 3 as per the calculations above
Now the first term is 3
We know that any N th term of arithmetic progression is given by the formula
Tn= a+ (n-1)*d
where a is the first term of the progression and n is the term of reference and d is the common difference
a=3
d=3
Therefore, nth term of the series is = Tn= 3 + (n-1) *3
Tn= 3+3n-3
Tn = 3n
Hence the n th term of the series is 3n where n is the term of reference
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Ian's car can go 224 miles on 7 gallons of gas during a drive bob used 6 gallons of gas, how far did he drive?
Ian drove 192 miles with 6 gallons
How to calculate the number of miles ?The first step is to calculate the number of miles he drove with one gallon
224= 7
x=1
cross multiply
7x= 224
x= 224/7
x= 32
The number of miles he drove with 6 gallons can be calculated as follows
32= 1
y= 6
cross multiply
y= 32 × 6
= 192
Hence he drove 192 miles with 6 gallons
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